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- Author:
- Oliver Binks; John Finnigan; Ingrid Coughlin; Mathias Disney; Kim Calders; Andrew Burt; Matheus Boni Vicari; Antonio Lola da Costa; Maurizio Mencuccini; Patrick Meir
- Source:
- Agricultural and forest meteorology 2021 v.297 pp. 108250
- ISSN:
- 0168-1923
- Subject:
- dew; dry season; eddy covariance; empirical models; energy balance; leaf wetness; meteorological data; meteorology; photosynthesis; rain; rain forests; temporal variation; variance; water uptake; Amazonia
- Abstract:
- ... Canopy wetness is a common condition that influences photosynthesis, the leaching or uptake of solutes, the water status and energy balance of canopies, and the interpretation of eddy covariance and remote sensing data. While often treated as a binary variable, ‘wet’ or ‘dry’, forest canopies are often partially wet, requiring the use of a continuous description of wetness. Minor precipitation eve ...
- DOI:
- 10.1016/j.agrformet.2020.108250
- https://doi.org/10.1016/j.agrformet.2020.108250
- Author:
- Nathsuda Pumijumnong; Piyarat Songtrirat; Supaporn Buajan; Sineenart Preechamart; Uthai Chareonwong; Chotika Muangsong
- Source:
- Agricultural and forest meteorology 2021 v.303 pp. 108394
- ISSN:
- 0168-1923
- Subject:
- Pinus kesiya; cambium; cell division; climate change; drought; dry season; growth rings; meteorology; rain; relative humidity; soil water; temperature; wet season; Thailand
- Abstract:
- ... Tropical forests are affected by recent climate change, but detailed knowledge how forests in different regions of the tropics respond to changing climate conditions is not sufficiently studied. Our objectives were to evaluate climatic effects on the monthly cambial activity of Pinus latteri and Pinus kesiya and to determine the relationships between climatic variables (precipitation, temperature, ...
- DOI:
- 10.1016/j.agrformet.2021.108394
- https://doi.org/10.1016/j.agrformet.2021.108394
- Author:
- Olga A. Kuricheva; Vitaly K. Avilov; Duy B. Dinh; Robert B. Sandlersky; Andrey N. Kuznetsov; Julia A. Kurbatova
- Source:
- Agricultural and forest meteorology 2021 v.298-299 pp. 108268
- ISSN:
- 0168-1923
- Subject:
- Bowen ratio; canopy; climate; dry season; eddy covariance; energy balance; evapotranspiration; heat; latent heat; meteorology; monsoon season; net radiation; stomatal conductance; stomatal movement; tropical rain forests; wet season; Vietnam
- Abstract:
- ... This study presents the results of over 6 years (11/2011–12/2017) of energy and water flux measurements on the first eddy covariance site in Vietnam, in a mature tropical moist forest under monsoon climate. The dry season, lasting approximately four months, has strong interannual variations. Six-year average precipitation and evapotranspiration amounted to 2518 ± 253 mm and 1519 ± 105 mm per year, ...
- DOI:
- 10.1016/j.agrformet.2020.108268
- https://doi.org/10.1016/j.agrformet.2020.108268
- Author:
- Sheila Wachiye; Lutz Merbold; Timo Vesala; Janne Rinne; Sonja Leitner; Matti Räsänen; Ilja Vuorinne; Janne Heiskanen; Petri Pellikka
- Source:
- Agricultural and forest meteorology 2021 v.307 pp. 108465
- ISSN:
- 0168-1923
- Subject:
- Agave sisalana; carbon dioxide; chronosequences; detection limit; dry season; forests; gas chromatography; greenhouse gases; land cover; land use; meteorology; methane; nitrogen; nitrous oxide; phenology; shrublands; sisal; soil water content; stand age; wet season; Kenya
- Abstract:
- ... Sisal (Agave sisalana) is a climate-resilient crop grown on large-scale farms in semi-arid areas. However, no studies have investigated soil greenhouse gas (GHGs: CO₂, N₂O and CH₄) fluxes from these plantations and how they relate to other land cover types. We examined GHG fluxes (Fs) in a sisal chronosequence at Teita Sisal Estate in southern Kenya. The effects of stand age on Fs were examined us ...
- DOI:
- 10.1016/j.agrformet.2021.108465
- https://doi.org/10.1016/j.agrformet.2021.108465
- Author:
- Russell L. Scott; John F. Knowles; Jacob A. Nelson; Pierre Gentine; Xi Li; Greg Barron-Gafford; Ross Bryant; Joel A. Biederman
- Source:
- Agricultural and forest meteorology 2021 v.297 no. pp. -
- ISSN:
- 0168-1923
- Subject:
- dry season; eddy covariance; evaporation; evapotranspiration; grasslands; leaf area index; photosynthesis; plant available water; rain; riparian areas; riparian vegetation; seasonal variation; semiarid zones; summer; terrestrial ecosystems; transpiration; water table; wet season; woodlands; Arizona
- Abstract:
- ... Knowing how evapotranspiration (ET) is mediated by abiotic and biotic pathways is essential to understanding how water affects ecosystem productivity. Recent studies have investigated the average transpiration fraction (T/ET) across sites and biomes, but the temporal variability of the partitioning and its controls are less understood. Here, we examine how water availability may regulate the seaso ...
- Handle:
- 10113/7193961
- DOI:
- 10.1016/j.agrformet.2020.108251
- CHORUS:
- 10.1016/j.agrformet.2020.108251
- https://doi.org/10.1016/j.agrformet.2020.108251
- Author:
- Qun Du; HuiZhi Liu; Yang Liu; LuJun Xu; Jihua Sun
- Source:
- Agricultural and forest meteorology 2021 v.311 pp. 108689
- ISSN:
- 0168-1923
- Subject:
- air; air temperature; carbon dioxide; carbon sequestration; climate change; dry season; ecosystem respiration; eddy covariance; energy; evapotranspiration; forests; gross primary productivity; latent heat flux; marshes; meteorology; net ecosystem exchange; net radiation; photosynthetically active radiation; vapor pressure deficit; wet season; China
- Abstract:
- ... Large uncertainties exist in carbon sequestration and water exchange process in wetland ecosystems under climate change. Beihai wetland is a very rare special type of alpine marsh with plants floating on the water surface located in the southeast margin area of the Tibetan Plateau. Based on the eddy covariance measurements from July 2015 to December 2016 over Baihai wetland, we have investigated t ...
- DOI:
- 10.1016/j.agrformet.2021.108689
- https://doi.org/10.1016/j.agrformet.2021.108689
- Author:
- Yihua Xiao; Shirong Liu; Manyun Zhang; Bufeng Chen; Zhihong Xu; Yongjun Pan; Xin Shi; Zhongmin Wu; Tushou Luo
- Source:
- Agricultural and forest meteorology 2020 v.292-293 pp. 108134
- ISSN:
- 0168-1923
- Subject:
- carbon dioxide; dry season; fine roots; forest soils; meteorology; microbial biomass; soil organic carbon; soil pH; soil respiration; subtropical soils; tropical forests; wet season; China
- Abstract:
- ... Forest ecosystems greatly affect the global carbon (C) budget. Because subtropical regions typically have wet and dry seasons that are likely to differ in their effects on soil respiration, our estimates of carbon dioxide (CO₂) emissions from subtropical soil would be improved by consideration of both wet and dry seasons rather than wet seasons alone. In this 10-year study, we determined soil resp ...
- DOI:
- 10.1016/j.agrformet.2020.108134
- https://doi.org/10.1016/j.agrformet.2020.108134
- Author:
- José Darlon Nascimento Alves; Aristides Ribeiro; Yhasmin Paiva Rody; Rodolfo Araujo Loos
- Source:
- Agricultural and forest meteorology 2022 v.319 pp. 108912
- ISSN:
- 0168-1923
- Subject:
- Bowen ratio; beef; cerrado; climate change; corn; drought; dry season; ecosystems; eddy covariance; energy balance; forests; heat transfer; hydrology; latent heat flux; meteorology; microclimate; net radiation; pastures; sensible heat flux; stomatal conductance; wet season; Brazil
- Abstract:
- ... The production of beef, soy, and corn in Brazil is currently higher in the Cerrado biome than other biomes, such as Amazon forest. The expansion of agricultural production has caused significant changes in local albedo and surface energy fluxes. Analyzing energy fluxes is essential for understanding the microclimate dynamics in the region. However, these factors are incompletely understood because ...
- DOI:
- 10.1016/j.agrformet.2022.108912
- https://doi.org/10.1016/j.agrformet.2022.108912
- Author:
- Feng-Sen Tan; Hui-Qing Song; Pei-Li Fu; Ya-Jun Chen; Zafar Siddiq; Kun-Fang Cao; Shi-Dan Zhu
- Source:
- Agricultural and forest meteorology 2020 v.292-293 pp. 108107
- ISSN:
- 0168-1923
- Subject:
- dieback; drought; dry season; forests; hydraulic conductivity; karsts; leaf water potential; leaves; meteorology; stomatal movement; woody plants
- Abstract:
- ... Hydraulic safety margins (HSM) have been widely studied to assess the hydraulic risks and/or strategies of plant species under drought. However, calculations of HSM tend to vary between studies, leading to conflicting conclusions. In this study, HSM of 16 co-occurring woody species (including evergreen trees, brevi-deciduous trees, and lianas) in a tropical karst forest was investigated. They were ...
- DOI:
- 10.1016/j.agrformet.2020.108107
- https://doi.org/10.1016/j.agrformet.2020.108107
- Author:
- Yanmei Mu; Yuan Yuan; Xin Jia; Tianshan Zha; Shugao Qin; Ziqi Ye; Peng Liu; Ruizhi Yang; Yun Tian
- Source:
- Agricultural and forest meteorology 2022 v.315 pp. 108831
- ISSN:
- 0168-1923
- Subject:
- air; arid lands; drainage; dry season; eddy covariance; evapotranspiration; forests; meteorology; normalized difference vegetation index; rain; shrublands; soil water; soil water content; subsurface flow; summer; uncertainty; vapor pressure deficit; wet season; winter; China
- Abstract:
- ... Evapotranspiration (ET) represents a major pathway of water loss from terrestrial ecosystems. However, large uncertainty exists regarding the relationship between ET and precipitation at seasonal and interannual timescales in drylands. Using the eddy-covariance technique, we investigated temporal variations of ET in a semiarid shrubland of northern China during January 2012–December 2020. Daily ET ...
- DOI:
- 10.1016/j.agrformet.2022.108831
- https://doi.org/10.1016/j.agrformet.2022.108831
- Author:
- T.J. Griffis; D.T. Roman; J.D. Wood; J. Deventer; L. Fachin; J. Rengifo; D. Del Castillo; E. Lilleskov; R. Kolka; R.A. Chimner; J. del Aguila-Pasquel; C. Wayson; K. Hergoualc'h; J.M. Baker; H. Cadillo-Quiroz; D.M. Ricciuto
- Source:
- Agricultural and forest meteorology 2020 v.295 pp. 108167
- ISSN:
- 0168-1923
- Subject:
- Mauritia flexuosa; air temperature; basins; carbon dioxide; carbon sinks; dry season; ecosystem respiration; ecosystems; eddy covariance; forests; global carbon budget; greenhouse effect; hydrometeorology; latent heat flux; methane; peatlands; photosynthesis; swamps; vapor pressure deficit; water table; Peru; South East Asia
- Abstract:
- ... Tropical peatlands are a major, but understudied, biophysical feedback factor on the atmospheric greenhouse effect. The largest expanses of tropical peatlands are located in lowland areas of Southeast Asia and the Amazon basin. The Loreto Region of Amazonian Peru contains ~63,000 km² of peatlands. However, little is known about the biogeochemistry of these peatlands, and in particular, the cycling ...
- DOI:
- 10.1016/j.agrformet.2020.108167
- https://doi.org/10.1016/j.agrformet.2020.108167
- Author:
- Rafat Qubaja; Madi Amer; Fyodor Tatarinov; Eyal Rotenberg; Yakir Preisler; Michael Sprintsin; Dan Yakir
- Source:
- Agricultural and forest meteorology 2020 v.281 pp. 107831
- ISSN:
- 0168-1923
- Subject:
- Pinus halepensis; adsorption; coniferous forests; dry environmental conditions; dry season; ecosystems; evaporation; evapotranspiration; leaf area index; meteorology; soil; transpiration; trees
- Abstract:
- ... The future of forests and their productivity in dry environments will depend on both water availability through precipitation and ecosystem and plant water use characteristics. It is increasingly recognized that better understanding water use patterns and their response to change depends on our ability to partition evapotranspiration (ET). Here, we use chamber-based direct measurements of soil eva ...
- DOI:
- 10.1016/j.agrformet.2019.107831
- https://doi.org/10.1016/j.agrformet.2019.107831
- Author:
- Xiaoming Xie; Bin He; Lanlan Guo; Ling Huang; Xingming Hao; Yafeng Zhang; Xuebang Liu; Rui Tang; Sifan Wang
- Source:
- Agricultural and forest meteorology 2022 v.312 pp. 108704
- ISSN:
- 0168-1923
- Subject:
- carbon cycle; data collection; dry season; ecosystems; fluorescence; forests; leaf abscission; leaf area index; leaves; meteorology; satellites; seasonal variation; temperature; uncertainty; Amazonia
- Abstract:
- ... There has been a debate regarding whether the Amazon rainforest is greening during the dry season. This is partially because of the great uncertainty associated with the ability of different vegetation indices to accurately assess tropical vegetation status. This paper, revisit this issue by comprehensively examining the seasonal variations in vegetation recorded in various satellite-based vegetat ...
- DOI:
- 10.1016/j.agrformet.2021.108704
- https://doi.org/10.1016/j.agrformet.2021.108704
- Author:
- Ying Zhao; Li Wang; James Knighton; Jaivime Evaristo; Martin Wassen
- Source:
- Agricultural and forest meteorology 2021 v.300 pp. 108323
- ISSN:
- 0168-1923
- Subject:
- Caragana korshinskii; Salix psammophila; dry season; ecosystems; forests; leaf water potential; meteorology; pioneer species; shrubs; soil; stomatal conductance; water uptake; water use efficiency; China
- Abstract:
- ... Salix psammophila and Caragana korshinskii are pioneer species used for revegetating farmlands on the Loess Plateau. Understanding the water-use strategies and physiological characteristics of these two species are important for evaluating their adaptability in water-limited ecosystems. We used stable isotopes (D and ¹⁸O), physiological parameters (e.g. midday and predawn leaf water potential and ...
- DOI:
- 10.1016/j.agrformet.2021.108323
- https://doi.org/10.1016/j.agrformet.2021.108323
- Author:
- Izaya Numata; Kul Khand; Jeppe Kjaersgaard; Mark A. Cochrane; Sonaira S. Silva
- Source:
- Agricultural and forest meteorology 2021 v.306 pp. 108446
- ISSN:
- 0168-1923
- Subject:
- atmospheric precipitation; climate; climate change; drought; dry season; edge effects; energy; evapotranspiration; forests; habitat fragmentation; humans; landscapes; meteorology; Amazonia; Brazil
- Abstract:
- ... Ongoing climate change and human conversion of forests to other land uses alter regional evapotranspiration dynamics and, consequently, impact associated hydrological systems in Amazonia. We studied the effects of drought and fragmentation on forest evapotranspiration using the surface energy balance-based model METRIC (Mapping Evapotranspiration at high Resolution with Internalized Calibration) f ...
- DOI:
- 10.1016/j.agrformet.2021.108446
- https://doi.org/10.1016/j.agrformet.2021.108446
- Author:
- Subham Banerjee; Dhritiman Das; Robert John
- Source:
- Agricultural and forest meteorology 2021 v.304-305 pp. 108411
- ISSN:
- 0168-1923
- Subject:
- Bayesian theory; biodiversity; dry season; ecoregions; forest management; fuel loading; fuel moisture index; grasslands; humans; meteorology; net primary productivity; rain; rivers; satellites; temperature; tropical forests; urbanization; wildlife habitats; woodlands; India
- Abstract:
- ... The Terai ecoregion of the Himalayan foothills is among the most fire-affected ecosystems in the Indian sub-continent. Although most of the Terai has already been lost to agriculture and urbanization, the few remaining native habitats are strictly protected due to their high biodiversity and ecological importance. The use of fires to maintain vegetation and wildlife habitat in these protected area ...
- DOI:
- 10.1016/j.agrformet.2021.108411
- https://doi.org/10.1016/j.agrformet.2021.108411
- Author:
- Jianping Wu; Yongxian Su; Xiuzhi Chen; Liyang Liu; Xueqing Yang; Fanxi Gong; Hongou Zhang; Xin Xiong; Deqiang Zhang
- Source:
- Agricultural and forest meteorology 2021 v.311 pp. 108691
- ISSN:
- 0168-1923
- Subject:
- canopy; carbon cycle; chlorophyll; climate change; dry season; leaves; meteorology; phenology; photosynthesis; plant litter; rain; shortwave radiation; water stress; wet season
- Abstract:
- ... Despite a perennial evergreen canopy, tropical evergreen forests continuously shed old leaves and grow new leaves at different time across different tropical regions. To examine how water and light availability control the leaf phenology of tropical evergreen forests, we used monthly litterfall mass data from 30 sites in Pan-Asian tropics and solar-induced chlorophyll fluorescence (SIF) as leaf sh ...
- DOI:
- 10.1016/j.agrformet.2021.108691
- https://doi.org/10.1016/j.agrformet.2021.108691
- Author:
- Timothy W. Hilton; Michael E. Loik; J. Elliott Campbell
- Source:
- Agricultural and forest meteorology 2019 v.266-267 pp. 173-183
- ISSN:
- 0168-1923
- Subject:
- carbon; carbon cycle; climate; climate change; drought; dry season; ecosystems; gross primary productivity; hosts; hydrologic cycle; leaf area index; models; phenology; prediction; protocols; soil water; topography; uncertainty; vegetation; wet season; California
- Abstract:
- ... Anthropogenic climate change will alter regional hydrologic cycles around the world, in part by increasing the frequency or duration of droughts in some areas. The International Drought Experiment (IDE) is investigating the impact of severe drought on terrestrial vegetation by experimentally reducing precipitation at dozens of sites. Here we implement the IDE precipitation reduction protocol using ...
- DOI:
- 10.1016/j.agrformet.2018.12.016
- https://doi.org/10.1016/j.agrformet.2018.12.016
- Author:
- Zheng-Hong Tan; Jun-Fu Zhao; Guan-Ze Wang; Meng-Ping Chen; Lian-Yan Yang; Chun-Sheng He; Natalia Restrepo-Coupe; Shu-Shi Peng; Xue-Yan Liu; Humberto R. da Rocha; Yoshiko Kosugi; Takashi Hirano; Scott R. Saleska; Michael L. Goulden; Jiye Zeng; Fang-Jun Ding; Fu Gao; Liang Song
- Source:
- Agricultural and forest meteorology 2019 v.275 pp. 317-328
- ISSN:
- 0168-1923
- Subject:
- aerodynamics; diurnal variation; dry season; eddy covariance; environmental factors; evaporation; evapotranspiration; models; momentum; seasonal variation; transpiration; tropical forests; turbulent flow; water vapor
- Abstract:
- ... Tropical forests are responsible for the evaporation and transpiration of large quantities of water into the atmosphere annually. Surface conductance (gs) is a poorly understood phenomenon that plays a central role in regulating this evapotranspiration. We studied the calculations, variations, and environmental factors controlling gs based on eddy flux measurements from 10 tropical forest sites th ...
- DOI:
- 10.1016/j.agrformet.2019.06.006
- https://doi.org/10.1016/j.agrformet.2019.06.006
- Author:
- Jonh Billy da Silva; Luiz Claudio G. Valle Junior; Thiago Oliveira Faria; João B. Marques; Higo J. Dalmagro; José S. Nogueira; George L. Vourlitis; Thiago R. Rodrigues
- Source:
- Agricultural and forest meteorology 2021 v.308-309 pp. 108559
- ISSN:
- 0168-1923
- Subject:
- canopy; drought; dry season; eddy covariance; energy balance; energy transfer; evapotranspiration; gas exchange; hydrologic cycle; landscapes; leaf area index; leaves; meteorology; net radiation; phenology; shrublands; surface water; vapor pressure deficit; water vapor; wetlands; Pantanal
- Abstract:
- ... Brazilian Pantanal is the largest seasonal wetland in the world and it plays an important role in regulating the local and global water cycle and energy balance. The Pantanal landscape consists of a mosaic of temporary and permanent aquatic habitats, floodable and non-floodable pastures, and forests; however, patterns of energy exchange are poorly understood, especially for seasonally flooded fore ...
- DOI:
- 10.1016/j.agrformet.2021.108559
- https://doi.org/10.1016/j.agrformet.2021.108559
- Author:
- Thiago V. Marques; Keila Mendes; Pedro Mutti; Salomão Medeiros; Lindenberg Silva; Aldrin M. Perez-Marin; Suany Campos; Paulo S. Lúcio; Kellen Lima; Jean dos Reis; Tarsila M. Ramos; Daniel F. da Silva; Cristiano P. Oliveira; Gabriel B. Costa; Antonio C.D. Antonino; Rômulo S.C. Menezes; Cláudio M. Santos e Silva; Bergson Bezerra
- Source:
- Agricultural and forest meteorology 2020 v.287 pp. 107957
- ISSN:
- 0168-1923
- Subject:
- caatinga; carbon; dry season; ecosystems; eddy covariance; evapotranspiration; leaves; meteorology; rain; stomatal movement; water stress; wet season; Brazil
- Abstract:
- ... Seasonally dry tropical forests are among the most important biomes regarding regional and global hydrological and carbon fluxes. Thus, the objective of this study was to evaluate the seasonal and interannual variability of evapotranspiration (ET) and its biophysical control and characteristics (surface conductance—Gₛ; decoupling coefficient—Ω; ratio between actual evapotranspiration and equilibri ...
- DOI:
- 10.1016/j.agrformet.2020.107957
- https://doi.org/10.1016/j.agrformet.2020.107957
- Author:
- Shin'ichi Iida; Takanori Shimizu; Koji Tamai; Naoki Kabeya; Akira Shimizu; Eriko Ito; Yasuhiro Ohnuki; Sophal Chann; Delphis F. Levia
- Source:
- Agricultural and forest meteorology 2020 v.295 pp. 108170
- ISSN:
- 0168-1923
- Subject:
- deciduous forests; dry season; evapotranspiration; hydrologic cycle; leaf area index; meteorology; overstory; rain; soil water; transpiration; understory; wet season; Cambodia
- Abstract:
- ... The water balance of tropical dry deciduous forests is less well understood than some other forest ecosystems. To help close this knowledge gap, we separately measured the evapotranspiration from the whole ecosystem (ETW), transpiration (TR) and interception loss (IL) from overstory trees, and evapotranspiration from the understory vegetation (ETU) in a tropical dry deciduous forest in Cambodia. I ...
- DOI:
- 10.1016/j.agrformet.2020.108170
- https://doi.org/10.1016/j.agrformet.2020.108170
- Author:
- Nicola Montaldo; Matteo Curreli; Roberto Corona; Ram Oren
- Source:
- Agricultural and forest meteorology 2020 v.280 pp. 107769
- ISSN:
- 0168-1923
- Subject:
- dry season; ecosystems; eddy covariance; energy balance; environmental factors; evaporation; evapotranspiration; grasses; landscapes; latent heat flux; leaf area; olives; pastures; sap flow; soil water; soil water balance; spring; transpiration; trees; vapor pressure deficit; wet season; Sardinia
- Abstract:
- ... Dry regions are typically characterized by heterogeneous ecosystems where trees are competing with the surrounding grasses for limited amount of water. In these regions, evapotranspiration (ET) is the leading loss term in the soil water budget, and its estimate, and the dynamic contribution of each ET component (i.e. tree and grass transpiration, and dry bare soil and wet surface evaporation), are ...
- DOI:
- 10.1016/j.agrformet.2019.107769
- https://doi.org/10.1016/j.agrformet.2019.107769
- Author:
- Rungnapa Kaewthongrach; Amnat Chidthaisong; Doojdao Charuchittipan; Yann Vitasse; Montri Sanwangsri; Pariwate Varnakovida; Sapit Diloksumpun; Samreong Panuthai; Tiwa Pakoktom; Tanita Suepa; Monique Y. LeClerc
- Source:
- Agricultural and forest meteorology 2020 v.287 pp. 107945
- ISSN:
- 0168-1923
- Subject:
- El Nino; Shorea obtusa; Sindora; air temperature; canopy; carbon; carbon dioxide; dry season; ecosystems; eddy covariance; evapotranspiration; forests; gross primary productivity; leaf development; leaves; meteorology; net ecosystem production; phenology; rain; soil water content; vapor pressure deficit; wet season; Thailand
- Abstract:
- ... This study evaluates the impacts of the 2015/2016 El Niño event on the phenology and carbon dioxide (CO₂) exchange in a secondary dry dipterocarp forest (DDF). In western Thailand, El Niño events significantly reduced rainfall and increased air temperature, leading to prolonged dry season with low soil water content and high vapor pressure deficit (VPD). During 2014–2017, leaf phenology was monito ...
- DOI:
- 10.1016/j.agrformet.2020.107945
- https://doi.org/10.1016/j.agrformet.2020.107945
- Author:
- Michael A. Gray; Hamish A. McGowan; Andrew L. Lowry; Adrien Guyot
- Source:
- Agricultural and forest meteorology 2018 v.249 pp. 81-99
- ISSN:
- 0168-1923
- Subject:
- data collection; dry season; ecosystems; eddy covariance; energy balance; islands; micrometeorology; seasonal variation; soil water; soil water content; swamps; temperature; vapor pressure; vegetation types; water table; wet season; Australia
- Abstract:
- ... The surface energy balance of sub-tropical coastal vegetation has received little attention. Here we present a multi-year observational data set using the eddy covariance method to quantify, for the first time, the surface energy balance over three contrasting representative vegetation types on a sub-tropical sand island in eastern Australia: a periodically inundated sedge swamp, an exotic pine pl ...
- DOI:
- 10.1016/j.agrformet.2017.11.018
- https://doi.org/10.1016/j.agrformet.2017.11.018
- Author:
- Zidong Luo; Zijuan Deng; Kamini Singha; Xinping Zhang; Na Liu; Yifei Zhou; Xinguang He; Huade Guan
- Source:
- Agricultural and forest meteorology 2020 v.291 pp. 108058
- ISSN:
- 0168-1923
- Subject:
- Allocasuarina; deuterium oxide; dry season; electrical resistance; forests; meteorology; plant growth; sap; sap flow; sapwood; temperature; tomography; trees; water content; water potential; water stress; wet season
- Abstract:
- ... Stem water content (θ) is an important state variable in the soil-plant-atmosphere continuum (SPAC), and varies temporally and spatially in response to environmental factors and plant growth stages. However, it is difficult to measure θ distribution in living trees in a manner that is not destructive. In this study, temporal and spatial variations in θ within living tree stems were examined based ...
- DOI:
- 10.1016/j.agrformet.2020.108058
- https://doi.org/10.1016/j.agrformet.2020.108058
- Author:
- Suany Campos; Keila R. Mendes; Lindenberg L. da Silva; Pedro R. Mutti; Salomão S. Medeiros; Laerte B. Amorim; Carlos A.C. dos Santos; Aldrin M. Perez-Marin; Tarsila M. Ramos; Thiago V. Marques; Paulo S. Lucio; Gabriel B. Costa; Cláudio M. Santos e Silva; Bergson G. Bezerra
- Source:
- Agricultural and forest meteorology 2019 v.271 pp. 398-412
- ISSN:
- 0168-1923
- Subject:
- arid lands; caatinga; dry season; ecosystems; eddy covariance; energy balance; friction velocity; latent heat flux; net radiation; seasonal variation; soil heat flux; temperature; turbulent flow; uncertainty; water vapor; wet season; wind speed; Brazil
- Abstract:
- ... The energy balance closure obtained through the eddy covariance method is a problem which persists, despite advances in the development and improvement of instruments and recent efforts in the description of corrections and in the characterization of measuring uncertainties. In most places the sum of sensible and latent heat fluxes (H and λE) is less than available energy, i.e. the difference betw ...
- DOI:
- 10.1016/j.agrformet.2019.03.018
- https://doi.org/10.1016/j.agrformet.2019.03.018
- Author:
- J. Tuure; A. Korpela; M. Hautala; M. Hakojärvi; H. Mikkola; M. Räsänen; J. Duplissy; P. Pellikka; T. Petäjä; M. Kulmala; L. Alakukku
- Source:
- Agricultural and forest meteorology 2019 v.276-277 pp. 107613
- ISSN:
- 0168-1923
- Subject:
- collectors; dew; dry season; field experimentation; foil; models; poly(vinyl chloride); polyethylene; surface temperature; Kenya
- Abstract:
- ... This study characterized different polyethylene (PE) and polyvinyl chloride (PVC) plastic foil materials effectiveness for dew collection in arid field-conditions in Kenya. Dew yields were collected daily for one year. Ten dew collectors with four different plastic foils were setup in the experimental field. The cumulated dew yields ranged from 18.9 to 25.3 mm. The greatest cumulated dew yields we ...
- DOI:
- 10.1016/j.agrformet.2019.06.012
- https://doi.org/10.1016/j.agrformet.2019.06.012
- Author:
- Geoffrey G. Parker; David R. Fitzjarrald; Irene Cibelle Gonçalves Sampaio
- Source:
- Agricultural and forest meteorology 2019 v.278 pp. 107661
- ISSN:
- 0168-1923
- Subject:
- absorption; algorithms; autocorrelation; canopy; canopy height; diurnal variation; dry season; forest litter; geometry; leaf area index; lidar; national forests; normalized difference vegetation index; photons; photosynthesis; photosynthetically active radiation; rain forests; remote sensing; seasonal variation; smoke; surface area; transmittance; tropical forests; understory; wet season; Brazil
- Abstract:
- ... We studied the interplay of atmospheric and canopy structure factors driving the canopy light environment (Photosynthetic Photon Flux Density, PPFD) in primary moist tropical forest in the Tapajós National Forest, Brazil. We quantified the temporal and spatial length scales that characterize intact rain forest inhomogeneities, asking: Are seasonal changes in the canopy radiation balance evident at ...
- DOI:
- 10.1016/j.agrformet.2019.107661
- https://doi.org/10.1016/j.agrformet.2019.107661
- Author:
- Peter Brugger; Frederik De Roo; Konstantin Kröniger; Eyal Rotenberg; Fedor Tatarinov; Dan Yakir; Matthias Zeeman; Matthias Mauder
- Source:
- Agricultural and forest meteorology 2019 v.269-270 pp. 19-27
- ISSN:
- 0168-1923
- Subject:
- Pinus; coniferous forests; diurnal variation; dry season; forest canopy; heat transfer; momentum; night temperature; radiative forcing; semiarid zones; sensible heat flux; shrublands; summer; surface temperature; turbulent flow; ultrasonics; wind
- Abstract:
- ... Efficiency and energetics of the turbulent transport in the canopy sublayer of a semi-arid pine forest and the atmospheric surface layer of a sparse desert-like shrubland are investigated from ultrasonic anemometer measurements during the summer dry season. The results show that an increased sensible heat flux over the forest canopy is generated by more energetic turbulence at small and large scal ...
- DOI:
- 10.1016/j.agrformet.2019.01.041
- https://doi.org/10.1016/j.agrformet.2019.01.041
- Author:
- Tomás L. Chor; Nelson L. Dias; Alessandro Araújo; Stefan Wolff; Einara Zahn; Antônio Manzi; Ivonne Trebs; Marta O. Sá; Paulo R. Teixeira; Matthias Sörgel
- Source:
- Agricultural and forest meteorology 2017 v.239 pp. 213-222
- ISSN:
- 0168-1923
- Subject:
- carbon dioxide; dry season; eddy covariance; ozone; roughness; temperate forests; tropical forests; variance; water vapor
- Abstract:
- ... The failure of the Monin–Obukhov Similarity Theory (MOST) in the roughness sublayer is a major problem for the estimation of fluxes over tall forests, whenever indirect methods that rely on MOST, such as flux-gradient or the variance method, are involved. While much research focuses on micrometeorological measurements over temperate-climate forests, very few studies deal with such measurements ove ...
- DOI:
- 10.1016/j.agrformet.2017.03.009
- https://doi.org/10.1016/j.agrformet.2017.03.009
- Author:
- Wenjuan Shen; Mingshi Li; Chengquan Huang; Tao He; Xin Tao; Anshi Wei
- Source:
- Agricultural and forest meteorology 2019 v.276-277 pp. 107641
- ISSN:
- 0168-1923
- Subject:
- afforestation; air temperature; cooling; cropland; dry season; evapotranspiration; forest plantations; global warming; grasslands; latitude; satellites; spatial variation; surface temperature; temporal variation; tropical forests; warm season; wet season; China
- Abstract:
- ... Estimating the effects of large scale afforestation is essential for the accurate understanding of its potential for the mitigation of climate warming. We used satellite observations to quantify the effects of the conversion of open lands (i.e., grassland and cropland) and natural forests to plantation forests and their associated biophysical processes (i.e., albedo and evapotranspiration (ET)) on ...
- DOI:
- 10.1016/j.agrformet.2019.107641
- https://doi.org/10.1016/j.agrformet.2019.107641
- Author:
- Miguel Saavedra; Ken Takahashi
- Source:
- Agricultural and forest meteorology 2017 v.239 pp. 58-70
- ISSN:
- 0168-1923
- Subject:
- case studies; cloud cover; dry season; edaphic factors; energy flow; frost; heat; humidity; models; radiative transfer; soil water; statistical analysis; temperature; uncertainty; wet season; Andes region; Peru
- Abstract:
- ... Radiative frosts are a major hazard to agriculture in the tropical Andes of Peru, but there are very few studies of their physical controls. In this study we focus on identifying and approximately estimating the effect that physical variables have on both the downward surface longwave flux (LW↓) and the minimum temperature (Tmin). Through a combination of case studies and statistical analysis of i ...
- DOI:
- 10.1016/j.agrformet.2017.02.019
- https://doi.org/10.1016/j.agrformet.2017.02.019
- Author:
- Junjun Wu; Meng Lu; Jiao Feng; Dandan Zhang; Qiong Chen; Qianxi Li; Chunyan Long; Quanfa Zhang; Xiaoli Cheng
- Source:
- Agricultural and forest meteorology 2019 v.271 pp. 307-315
- ISSN:
- 0168-1923
- Subject:
- Platycladus orientalis; coniferous forests; detritus; dry season; forest ecosystems; methane; methane production; methanotrophs; microclimate; phospholipid fatty acids; plant litter; roots; soil water; soil water content; wet season; China
- Abstract:
- ... The uptake of CH4 by well-drained soil plays a vital role in mitigating the atmospheric CH4, but the impacts of shift in plant litter input on uptake of CH4 and the underlying mechanism are not fully understood. Here, we conducted in situ measurements of soil CH4 flux rates monthly throughout the year after the short-term litter input manipulations (i.e. Detritus Input and Removal Treatment-DIRT: ...
- DOI:
- 10.1016/j.agrformet.2019.03.017
- https://doi.org/10.1016/j.agrformet.2019.03.017
- Author:
- Bijan Seyednasrollah; Jean-Christophe Domec; James S. Clark
- Source:
- Agricultural and forest meteorology 2019 v.269-270 pp. 220-230
- ISSN:
- 0168-1923
- Subject:
- air; calibration; canopy; climate; data collection; drought; dry season; ecosystem management; energy balance; evapotranspiration; monitoring; remote sensing; surface temperature; thermal stress; uncertainty; vegetation; water stress; Northwestern United States
- Abstract:
- ... Monitoring drought in real-time using minimal field data is a challenge for ecosystem management and conservation. Most methods require extensive data collection and in-situ calibration and accuracy is difficult to evaluate. Here, we demonstrated how the space-borne canopy “thermal stress”, defined as surface-air temperature difference, provides a reliable surrogate for drought-induced water stres ...
- DOI:
- 10.1016/j.agrformet.2019.02.016
- https://doi.org/10.1016/j.agrformet.2019.02.016
- Author:
- Jiangong Liu; Derrick Y.F. Lai
- Source:
- Agricultural and forest meteorology 2019 v.278 pp. 107644
- ISSN:
- 0168-1923
- Subject:
- Kandelia; carbon; carbon dioxide; carbon dioxide production; carbon sinks; chlorides; dry season; ecosystem respiration; eddy covariance; estuaries; global warming; gross primary productivity; ions; mangroves (trees); net ecosystem exchange; organic matter; path analysis; photosynthesis; river flow; seasonal variation; sodium; subtropics; temperature; water salinity; wet season; wetlands
- Abstract:
- ... Coastal mangrove wetlands have an excellent potential in sequestrating atmospheric carbon dioxide (CO₂) owing to their high primary productivity as well as slow anaerobic decomposition of organic matter. Yet, there is hitherto a paucity of researches examining the temporal variations and environmental controls of ecosystem-scale CO₂ fluxes in subtropical mangroves using quasi-continuous, high temp ...
- DOI:
- 10.1016/j.agrformet.2019.107644
- https://doi.org/10.1016/j.agrformet.2019.107644
- Author:
- C.M. Tfwala; L.D. van Rensburg; Z.A. Bello; P.C. Zietsman
- Source:
- Agricultural and forest meteorology 2019 v.275 pp. 296-304
- ISSN:
- 0168-1923
- Subject:
- buffaloes; canopy; capacitance probes; diurnal variation; dry environmental conditions; dry season; ecosystems; groundwater; heat; hydrologic cycle; mining; plant available water; seasonal variation; soil profiles; soil water content; summer; transpiration; tree and stand measurements; trees; vadose zone; water content; water table; watersheds; wet season
- Abstract:
- ... The major route through which water from the earth’s surface re-enters the hydrologic cycle in forested ecosystems is via tree transpiration (T). It is therefore important to have detailed understanding of the quantity and source of water transpired by different tree species. The aims of this study were to i) assess the trends of T for selected tree species (camel thorn, sweet thorn, shepherd’s tr ...
- DOI:
- 10.1016/j.agrformet.2019.05.030
- https://doi.org/10.1016/j.agrformet.2019.05.030
- Author:
- R. Žydelis; L. Weihermüller; M. Herbst; A. Klosterhalfen; S. Lazauskas
- Source:
- Agricultural and forest meteorology 2018 v.263 pp. 169-179
- ISSN:
- 0168-1923
- Subject:
- aboveground biomass; air temperature; canopy; climate; cold; cold stress; corn; data collection; dry season; farmers; forestry; global warming; grain yield; latitude; models; rain; risk; sandy loam soils; soil water; soil water content; water shortages; water stress; wet season
- Abstract:
- ... Farmers in northern latitudes face significant risks because of low temperatures and water shortage when attempting to benefit from climate warming by expanding maize for grain. The study was aimed to investigate maize development and suitability of two models to simulate maize growth in a cool climate.Field experiments were conducted at the Lithuanian Research Centre for Agriculture and Forestry ...
- DOI:
- 10.1016/j.agrformet.2018.08.011
- https://doi.org/10.1016/j.agrformet.2018.08.011
39. Coastal low cloudiness and fog enhance crop water use efficiency in a California agricultural system
- Author:
- Sara A. Baguskas; Rachel E.S. Clemesha; Michael E. Loik
- Source:
- Agricultural and forest meteorology 2018 v.252 pp. 109-120
- ISSN:
- 0168-1923
- Subject:
- Fragaria ananassa; agricultural land; carbon; climate change; crop yield; crops; dry season; ecosystems; farmers; farms; freshwater; groundwater; growing season; irrigation water; microclimate; photosynthesis; photosynthetically active radiation; remote sensing; shade; stomatal conductance; strawberries; summer; temperature; water stress; water use efficiency; water utilization; California
- Abstract:
- ... Impacts of climate change threaten California farmers in a number of ways, most importantly through a decline in freshwater availability, concurrent with a rise in water demand. In coastal California, the growing season of economically important crops, such as strawberries, overlap with the occurrence of summertime coastal fog, which buffers the summer dry season through shading effects and direct ...
- DOI:
- 10.1016/j.agrformet.2018.01.015
- https://doi.org/10.1016/j.agrformet.2018.01.015
- Author:
- Junbin Zhao; Paulo C. Olivas; Sujit Kunwor; Sparkle L. Malone; Christina L. Staudhammer; Gregory Starr; Steven F. Oberbauer
- Source:
- Agricultural and forest meteorology 2018 v.259 pp. 345-354
- ISSN:
- 0168-1923
- Subject:
- Everglades National Park; dry season; ecosystems; eddy covariance; energy balance; energy flow; energy transfer; heat transfer; hydrology; remote sensing; satellites; wet season; wetlands
- Abstract:
- ... The eddy covariance (EC) technique has been widely used to measure ecosystem surface energy fluxes. However, with a relatively small representative area (footprint), errors are often introduced when upscaling EC data based on variables derived from large-footprint satellite products. Furthermore, EC measurements often fail to close the energy balance in ecosystems such as wetlands. As an alternati ...
- DOI:
- 10.1016/j.agrformet.2018.05.026
- https://doi.org/10.1016/j.agrformet.2018.05.026
- Author:
- Teresa Bertolini; Chris R. Flechard; Ferdinando Fattore; Giacomo Nicolini; Paolo Stefani; Stefano Materia; Riccardo Valentini; Gaia Vaglio Laurin; Simona Castaldi
- Source:
- Agricultural and forest meteorology 2016 v.218-219 pp. 184-195
- ISSN:
- 0168-1923
- Subject:
- aerosols; ammonia; ammonium compounds; burning; coasts; dry deposition; dry season; emissions; forest canopy; forests; models; national parks; nitrates; nitric acid; nitrogen; nitrogen dioxide; terrestrial ecosystems; wet season; wind direction; Ghana
- Abstract:
- ... Atmospheric deposition can be a significant source of reactive nitrogen (Nr) in terrestrial ecosystems and might play a relevant role for both N cycle processes and NC cycle interactions. However, detailed studies and annual budgets of Nr deposition are scarce in many regions of the globe, particularly dry depositions in tropical areas. In this study we estimated the magnitude and dynamics of Nr d ...
- DOI:
- 10.1016/j.agrformet.2015.12.026
- https://doi.org/10.1016/j.agrformet.2015.12.026
- Author:
- Guillermo N. Murray-Tortarolo; Víctor J. Jaramillo; John Larsen
- Source:
- Agricultural and forest meteorology 2018 v.253-254 pp. 124-131
- ISSN:
- 0168-1923
- Subject:
- Zea mays; climate change; corn; crop yield; crops; dry season; food security; land use; rain; rainfed farming; risk; Mexico
- Abstract:
- ... Climate change has altered global rainfall amounts and seasonality. Rainfed crops are particularly dependent on foreseeable rainfall, thus yields of maize, wheat and sorghum have decreased globally. Rainfed maize is the cornerstone of the agriculture in Mexico and the nutrition base of as many as twenty million people. Despite its relevance, the risk that climate change represents for this economi ...
- DOI:
- 10.1016/j.agrformet.2018.02.011
- https://doi.org/10.1016/j.agrformet.2018.02.011
- Author:
- Adriana Sanchez; A. Camilo Rey-Sánchez; Juan M. Posada; William K. Smith
- Source:
- Agricultural and forest meteorology 2018 v.253-254 pp. 38-47
- ISSN:
- 0168-1923
- Subject:
- Chusquea; air; alpine plants; canopy; carbon; climate change; dry season; ecosystems; energy balance; equations; gas exchange; leaves; models; photosynthesis; solar radiation; structural equation modeling; temperature; Andes region; Colombia
- Abstract:
- ... In models of photosynthetic gas exchange, leaf temperature (Tₗₑₐf) is often calculated using a combination of derivations of the energy balance equation and measurements of air temperature (Tₐᵢᵣ). Yet, there are frequently large differences between Tₗₑₐf and Tₐᵢᵣ under natural field conditions, and an energy balance is complicated in complex canopies, especially in tropical ecosystems. In the pres ...
- DOI:
- 10.1016/j.agrformet.2018.01.033
- https://doi.org/10.1016/j.agrformet.2018.01.033
- Author:
- Tobias Gerken; Benjamin L. Ruddell; Jose D. Fuentes; Alessandro Araújo; Nathaniel A. Brunsell; Jair Maia; Antonio Manzi; Juliane Mercer; Rosa Nascimento dos Santos; Celso von Randow; Paul C. Stoy
- Source:
- Agricultural and forest meteorology 2018 v.255 pp. 92-103
- ISSN:
- 0168-1923
- Subject:
- dry season; eddy covariance; energy balance; entropy; heat; tropical rain forests; wet season; Amazonia
- Abstract:
- ... This work investigates the diurnal and seasonal behavior of the energy balance residual (E) that results from the observed difference between available energy and the turbulent fluxes of sensible heat (H) and latent heat (LE) at the FLUXNET BR-Ma2 site located in the Brazilian central Amazon rainforest. The behavior of E is analyzed by extending the eddy covariance averaging length from 30min to 4 ...
- DOI:
- 10.1016/j.agrformet.2017.03.023
- https://doi.org/10.1016/j.agrformet.2017.03.023
- Author:
- Thiago R. Rodrigues; George L. Vourlitis; Francisco de A. Lobo; Franciele B. Santanna; Paulo H.Z. de Arruda; José de S. Nogueira
- Source:
- Agricultural and forest meteorology 2016 v.218-219 pp. 218-229
- ISSN:
- 0168-1923
- Subject:
- basins; canopy; carbon dioxide; cerrado; climate change; dry season; drying; ecosystems; eddy covariance; equations; evapotranspiration; meteorological parameters; meteorology; models; savannas; seasonal variation; soil water; water stress; water vapor; Amazonia; Brazil
- Abstract:
- ... Temporal variations in land-atmosphere water vapor exchange are more pronounced in seasonal environments, especially grass-dominated savannas (known as campo sujo Cerrado) of the southern and eastern Amazon Basin. Recent work in campo sujo indicates that rates of canopy conductance (gc) were directly and indirectly affected by a variety of meteorological variables, which limited our understanding ...
- DOI:
- 10.1016/j.agrformet.2015.12.060
- https://doi.org/10.1016/j.agrformet.2015.12.060
- Author:
- Nurit Agam; Solomon Leake; Pedro R. Berliner
- Source:
- Agricultural and forest meteorology 2016 v.221 pp. 152-163
- ISSN:
- 0168-1923
- Subject:
- basins; diurnal variation; dry season; evaporation; model validation; models; runoff; soil; solar radiation; summer; tree growth; water harvesting; wet season; winter
- Abstract:
- ... Micro-catchment water harvesting systems are systems by which runoff is collected from a contributing area, stored in an adjacent infiltration basin, and support tree growth during the dry season. Increase of the efficiency of such systems can be achieved by minimizing non-productive water losses, which mainly occur from the impounding area during the period during which free water is available an ...
- DOI:
- 10.1016/j.agrformet.2016.02.014
- https://doi.org/10.1016/j.agrformet.2016.02.014
- Author:
- Audrey Leopold; Cyril Marchand; Alexandre Renchon; Jonathan Deborde; Thomas Quiniou; Michel Allenbach
- Source:
- Agricultural and forest meteorology 2016 v.223 pp. 217-232
- ISSN:
- 0168-1923
- Subject:
- Avicennia marina; carbon; carbon dioxide; correlation; dry season; ecosystem respiration; ecosystems; eddy covariance; freshwater; humid zones; littoral zone; net ecosystem exchange; net ecosystem production; photosynthesis; rain; seasonal variation; seawater; semiarid zones; shrubs; solar radiation; temperature; tides; trees; vapor pressure; warm season; water stress; wet season; New Caledonia
- Abstract:
- ... In New Caledonia, a world-renowned mangrove, the “Coeur de Voh”, grows in a semi-arid climate and at a high elevation in the intertidal zone. Net CO2 exchange (NEE) between the Avicennia marina shrub mangrove and the atmosphere was studied using an eddy-covariance system. The NEE and its biophysical controls were investigated, and net ecosystem production (NEP) was determined for one year. The day ...
- DOI:
- 10.1016/j.agrformet.2016.04.006
- https://doi.org/10.1016/j.agrformet.2016.04.006
- Author:
- Michael J. Lathuillière; Higo J. Dalmagro; T. Andrew Black; Paulo H.Z. de Arruda; Iain Hawthorne; Eduardo G. Couto; Mark S. Johnson
- Source:
- Agricultural and forest meteorology 2018 v.256-257 pp. 407-419
- ISSN:
- 0168-1923
- Subject:
- beans; corn; crop models; crop production; crop rotation; cropland; crops; dry season; eddy covariance; evapotranspiration; farms; irrigated farming; irrigation; multiple cropping; rice; soybeans; transpiration; Amazonia
- Abstract:
- ... Cropland has increasingly occupied large areas in Southern Amazonia since the 1990s, yet few direct field-based evapotranspiration (ET) measurements are available. We used the eddy covariance method to measure ET on a farm with multiple cropping cycles per year over September 2015 through February 2017. This period covered two soybean crops and associated rotations in each of two adjacent fields: ...
- DOI:
- 10.1016/j.agrformet.2018.03.023
- https://doi.org/10.1016/j.agrformet.2018.03.023
- Author:
- M.P. Padovan; R.M. Brook; M. Barrios; J.B. Cruz-Castillo; S.J. Vilchez-Mendoza; A.N. Costa; B. Rapidel
- Source:
- Agricultural and forest meteorology 2018 v.248 pp. 1-14
- ISSN:
- 0168-1923
- Subject:
- Simarouba glauca; Tabebuia rosea; agroforestry; altitude; crops; dry season; evaporation; evapotranspiration; farmers; income; latitude; leaf water potential; leaves; rain; shade trees; soil; temperature; transpiration; water utilization; Nicaragua
- Abstract:
- ... There is increasing concern that due to land pressure and the need to maximize income, smallholder coffee farmers are increasingly being forced to cultivate in areas which are considered to be sub-optimal for coffee. Little is known about optimal coffee and tree combinations in these conditions and the degree to which crops and trees compete or are synergistic. In environmental conditions which we ...
- DOI:
- 10.1016/j.agrformet.2017.08.036
- https://doi.org/10.1016/j.agrformet.2017.08.036
- Author:
- Maricar Aguilos; Bruno Hérault; Benoit Burban; Fabien Wagner; Damien Bonal
- Source:
- Agricultural and forest meteorology 2018 v.253-254 pp. 114-123
- ISSN:
- 0168-1923
- Subject:
- carbon; carbon cycle; carbon sinks; climatic factors; drought; dry season; ecosystem respiration; ecosystems; models; net ecosystem exchange; primary productivity; soil temperature; soil water; soil water content; tropical rain forests; uncertainty; wet season; Amazonia; French Guiana
- Abstract:
- ... A thorough understanding of how tropical forests respond to climate is important to improve ecosystem process models and to reduce uncertainties in current and future global carbon balance calculations. The Amazon rainforest, a major contributor to the global carbon cycle, is subject to strong intra- and interannual variations in climate conditions. Understanding their effect on carbon fluxes betw ...
- DOI:
- 10.1016/j.agrformet.2018.02.009
- https://doi.org/10.1016/j.agrformet.2018.02.009
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