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1. Reference crop evapotranspiration for data-sparse regions using reanalysis products

Author:
Milad Nouri; Mehdi Homaee
Source:
Agricultural water management 2022 v.262 pp. 107319
ISSN:
0378-3774
Subject:
vapor pressure deficit,   etc   ; data collection; evapotranspiration; temperature; water management; wind speed; Iran;     Show all 7 Subjects
Abstract:
... Reasonable estimation of reference evapotranspiration (ETₒ) requires some climatic inputs which might be missing in areas with sparse data recording. This study aimed to assess performance of FAO56 Penman-Monteith (PM-ETₒ) fed by ERA5, MERRA2 and GLDAS2 outputs in estimating daily and monthly ETₒ under data limitation. The accuracy of PM-ETₒ calculated by interpolated factors and the temperature-b ...
DOI:
10.1016/j.agwat.2021.107319

2. Time changes everything: a multispecies analyses of temporal patterns in evaporative water loss

Author:
Anamarija Žagar; Miguel A. Carretero; Maarten de Groot
Source:
Oecologia 2022 v.198 no.4 pp. 905-915
ISSN:
0029-8549
Subject:
vapor pressure deficit,   etc   ; acclimation; climate change; data collection; hydrologic cycle; water vapor;     Show all 6 Subjects
Abstract:
... Increasing trends in environmental temperatures and changes in the hydrological cycle caused by climate change are affecting organisms around the world. Water balance is an important feature of organisms as warmer and drier environments increase water vapour pressure deficit and cutaneous water loss. The aim of our study was to understand the hourly kinetics of losses under water-restricted condit ...
DOI:
10.1007/s00442-022-05166-z

3. An improved representation of the relationship between photosynthesis and stomatal conductance leads to more stable estimation of conductance parameters and improves the goodness‐of‐fit across diverse data sets

Author:
Julien Lamour; Kenneth J. Davidson; Kim S. Ely; Gilles Le Moguédec; Andrew D. B. Leakey; Qianyu Li; Shawn P. Serbin; Alistair Rogers
Source:
Global change biology 2022 v.28 no.11 pp. 3537-3556
ISSN:
1354-1013
Subject:
vapor pressure deficit,   etc   ; carbon dioxide; light intensity; models; phenology; photosynthesis; relative humidity; stomatal conductance;     Show all 8 Subjects
Abstract:
... Stomata play a central role in surface–atmosphere exchange by controlling the flux of water and CO₂ between the leaf and the atmosphere. Representation of stomatal conductance (gₛw) is therefore an essential component of models that seek to simulate water and CO₂ exchange in plants and ecosystems. For given environmental conditions at the leaf surface (CO₂ concentration and vapor pressure deficit ...
DOI:
10.1111/gcb.16103

4. Limitation by vapour pressure deficit shapes different intra‐annual growth patterns of diffuse‐ and ring‐porous temperate broadleaves

Author:
Jan Tumajer; Tobias Scharnweber; Marko Smiljanic; Martin Wilmking
Source:
The new phytologist 2022 v.233 no.6 pp. 2429-2441
ISSN:
0028-646X
Subject:
vapor pressure deficit,   etc   ; Acer pseudoplatanus; Fagus sylvatica; Quercus robur; air; cambium; carbon; climate change; dendrometers; humidity;     Show all 10 Subjects
Abstract:
... Understanding the effects of temperature and moisture on radial growth is vital for assessing the impacts of climate change on carbon and water cycles. However, studies observing growth at sub‐daily temporal scales remain scarce. We analysed sub‐daily growth dynamics and its climatic drivers recorded by point dendrometers for 35 trees of three temperate broadleaved species during the years 2015–20 ...
DOI:
10.1111/nph.17952

5. Disentangling the relative effects of soil moisture and vapor pressure deficit on photosynthesis in dryland Central Asia

Author:
Tao Yu; Guli Jiapaer; Anming Bao; Guoxiong Zheng; Junfeng Zhang; Xu Li; Ye Yuan; Xiaoran Huang; Jeanine Umuhoza
Source:
Ecological indicators 2022 v.137 pp. 108698
ISSN:
1470-160X
Subject:
vapor pressure deficit,   etc   ; arid lands; carbon; carbon cycle; chlorophyll; photosynthesis; shrublands; soil water; Kazakhstan; Kyrgyzstan; Turkmenistan; Uzbekistan;     Show all 12 Subjects
Abstract:
... Soil moisture (SM) and vapor pressure deficit (VPD) are key factors affecting photosynthesis, and quantifying their effects on this process can help us to understand the mechanisms of carbon cycling in terrestrial ecosystems. However, the strong coupling of SM and VPD makes it difficult to quantify their relative importance in the ecosystem carbon cycle. In this study we decoupled the negative cor ...
DOI:
10.1016/j.ecolind.2022.108698

6. Drought resilience in CIMMYT maize lines adapted to Africa resulting from transpiration sensitivity to vapor pressure deficit and soil drying

Author:
H. Chiango; N. Jafarikouhini; D. Pradhan; A. Figueiredo; J. Silva; T.R. Sinclair; J. Holland
Source:
Journal of crop improvement 2022 v.36 no.2 pp. 301-315
ISSN:
1542-7536
Subject:
vapor pressure deficit,   etc   ; Zea mays; corn; crop yield; drought; rain; soil water; transpiration; water conservation; Southern Africa;     Show all 10 Subjects
Abstract:
... Low rainfall limits crop yield, particularly for maize (Zea mays L.) in southern Africa. Consequently, there is a need to identify genetic sources of specific drought-related traits that can contribute to soil water conservation and increased yields under water-limited conditions. In this study, maize genotypes released for production in southern Africa were tested for expression of two soil water ...
DOI:
10.1080/15427528.2021.1961334

7. Genotypic variation of conservative and profligate water use in the vegetative and reproductive stages of canola (Brassica napus L.)

Author:
Tao Luo; Liyong Hu; Heping Zhang
Source:
Functional plant biology 2022 v.49 no.3 pp. 231-244
ISSN:
1445-4408
Subject:
vapor pressure deficit,   etc   ; Brassica napus; Mediterranean climate; canola; drought; genetic variation; models; rain; soil water; transpiration; Australia;     Show all 11 Subjects
Abstract:
... Limited water availability is a major constraint to canola (Brassica napus L.) yield in the Mediterranean-type climate region. Selecting and breeding for genotypes with conservative water use characteristics is a promising strategy to improve yield in this environment. Three experiments were conducted to investigate transpiration responses (TR) to vapour pressure deficit (VPD) and progressive soil ...
DOI:
10.1071/FP21239

8. Regional soil moisture prediction system based on Long Short-Term Memory network

Author:
Nemanja Filipović; Sanja Brdar; Gordan Mimić; Oskar Marko; Vladimir Crnojević
Source:
Biosystems engineering 2022 v.213 pp. 30-38
ISSN:
1537-5110
Subject:
vapor pressure deficit,   etc   ; air temperature; climate; climate change; data collection; drought; neural networks; prediction; soil water; Serbia;     Show all 10 Subjects
Abstract:
... In the context of climate change, drought has been recognised as one of the most severe threats for agricultural production since absence of water is one of the most limiting factors for the growth of plants. In this study, a regional system for soil moisture prediction based on ERA5 climate reanalysis dataset, an open-source meteorological dataset issued by Copernicus Climate Change Service, was ...
DOI:
10.1016/j.biosystemseng.2021.11.019

9. Global patterns and ecological implications of diurnal hysteretic response of ecosystem water consumption to vapor pressure deficit

Author:
Xianli Xu
Source:
Agricultural and forest meteorology 2022 v.314 pp. 108785
ISSN:
0168-1923
Subject:
vapor pressure deficit,   etc   ; carbon; carbon cycle; data collection; dry environmental conditions; ecosystems; forests; gross primary productivity; hysteresis; meteorology;     Show all 10 Subjects
Abstract:
... Increasing vapor pressure deficit (VPD) has led to widespread reductions in vegetation carbon uptake by stomatal hydraulic regulation. The response of vegetation to VPD is therefore paramount in the global water and carbon cycle, and draws worldwide attention. However, the hysteretic response of ecosystem water consumption to VPD, although widely reported across the world, is still lack of systema ...
DOI:
10.1016/j.agrformet.2021.108785

10. Impact of diffuse radiation on evapotranspiration and its coupling to carbon fluxes at global FLUXNET sites

Author:
Bin Wang; Xu Yue; Hao Zhou; Jun Zhu
Source:
Agricultural and forest meteorology 2022 v.322 pp. 109006
ISSN:
0168-1923
Subject:
vapor pressure deficit,   etc   ; carbon; climate; ecosystems; eddy covariance; environmental impact; evapotranspiration; forests; hydrologic cycle; meteorology; radiation use efficiency;     Show all 11 Subjects
Abstract:
... Diffuse radiation is widely known for its higher light use efficiency in ecosystem carbon uptake than direct radiation, which inevitably alters ecosystem evapotranspiration (ET), as plant carbon uptake and water use are closely coupled through leaf stomata. However, although the impact of diffuse radiation on ecosystem carbon uptake has been extensively explored, its impact on ecosystem ET remains ...
DOI:
10.1016/j.agrformet.2022.109006

11. Improving reference evapotranspiration (ETo) calculation under limited data conditions in the high Tropical Andes

Author:
Cristina Vásquez; Rolando Célleri; Mario Córdova; Galo Carrillo-Rojas
Source:
Agricultural water management 2022 v.262 pp. 107439
ISSN:
0378-3774
Subject:
vapor pressure deficit,   etc   ; air; dewpoint; equations; evapotranspiration; relative humidity; solar radiation; water management; water power; wind speed; Andes region;     Show all 11 Subjects
Abstract:
... The computation of the reference crop evapotranspiration (ETₒ) using the FAO56 Penman-Monteith equation (PM-ETₒ) requires data on maximum and minimum air temperatures (Tₘₐₓ, Tₘᵢₙ), relative humidity (RH), solar radiation (Rₛ), and wind speed (u₂). However, the records of meteorological variables are often incomplete or of poor quality. Frequently, in the mountain areas such as those of the Andes, ...
DOI:
10.1016/j.agwat.2021.107439

12. Regulating Vapor Pressure Deficit and Soil Moisture Improves Tomato and Cucumber Plant Growth and Water Productivity in the Greenhouse

Author:
Xiaoming Song; Lili Miao; Xiaocong Jiao; Musawar Ibrahim; Jianming Li
Source:
Horticulturae 2022 v.8 no.2 pp. -
ISSN:
2311-7524
Subject:
vapor pressure deficit,   etc   ; cucumbers; field capacity; greenhouses; irrigation; photosynthesis; plant growth; soil water; tomatoes; vegetable growing; water management; China;     Show all 12 Subjects
Abstract:
... Atmospheric vapor pressure deficit (VPD) is the driving force that regulates the rate of water transport within plants. Under High VPD (HVPD), plants always reduce their photosynthesis rate and close their stomata. Experiments were performed under greenhouse conditions with cucumber and tomato plants to identify the regulatory effect of VPD on plant water capacity. Treatments included two levels o ...
DOI:
10.3390/horticulturae8020147

13. Season and genotype effect on whole plant water use efficiency of coconut (Cocos nucifera L.) seedlings grown in a hydroponic system

Author:
K.B. Hebbar; S. Kannan; S. Neenu; Abhin Sukumar. P; S.V. Ramesh
Source:
Scientia horticulturae 2022 v.303 pp. 111198
ISSN:
0304-4238
Subject:
vapor pressure deficit,   etc   ; biomass production; coconuts; genotype; hydroponics; monsoon season; photons; photosynthesis; relative humidity; summer; temperature; water use efficiency;     Show all 12 Subjects
Abstract:
... A study was conducted to understand the influence of climatic factors on nutrient use, and whole plant water use efficiency (WUE) of hydroponically grown coconut seedlings. Two dwarf (Chowghat green dwarf, CGD and Malayan yellow dwarf, MYD) and two tall (Kalpa Pratibha, KP and Kalpatharu, KT) coconut genotypes were grown in triplicates and their water use, and biomass production were measured and ...
DOI:
10.1016/j.scienta.2022.111198

14. Atmospheric humidity deficits tell us how soil moisture deficits down-regulate ecosystem evaporation

Author:
Dennis D. Baldocchi; Nicole Keeney; Camilo Rey-Sanchez; Joshua B. Fisher
Source:
Advances in water resources 2022 v.159 pp. 104100
ISSN:
0309-1708
Subject:
vapor pressure deficit,   etc   ; climate; data collection; ecosystems; eddy covariance; equations; evaporation; humidification; models; relative humidity; satellites; soil water; temperature; troposphere;     Show all 14 Subjects
Abstract:
... Knowing how actual evaporation is down-regulated from potential evaporation during periods with soil moisture deficits is one of the greatest challenges towards computing evaporation everywhere on a regular basis. We propose the hypothesis that vegetated landscapes transmit information on soil moisture deficits through its down-regulation of evaporation, which in turn affects the humidification an ...
DOI:
10.1016/j.advwatres.2021.104100

15. Canopy Solar-Induced Chlorophyll Fluorescence and Its Link to Transpiration in a Temperate Evergreen Needleleaf Forest during the Fall Transition

Author:
Weiwei Cong; Kaijie Yang; Feng Wang
Source:
Forests 2022 v.13 no.1 pp. -
ISSN:
1999-4907
Subject:
vapor pressure deficit,   etc   ; air temperature; biosphere; canopy; chlorophyll; ecosystems; evergreen forests; photosynthesis; photosynthetically active radiation; soil temperature; soil water content; transpiration;     Show all 12 Subjects
Abstract:
... Northern hemisphere evergreen needleleaf forest (ENF) contributes a significant fraction of global water exchange but regional transpiration (T) observation in ENF ecosystems is still challenging. Traditional remote sensing techniques and terrestrial biosphere models reproduce the transpiration seasonality with difficulty, and with large uncertainties. Solar-induced chlorophyll fluorescence (SIF) ...
DOI:
10.3390/f13010074

16. Estimation of China’s Contribution to Global Greening over the Past Three Decades

Author:
Jing Peng; Fuqiang Yang; Li Dan; Xiba Tang
Source:
Land 2022 v.11 no.3 pp. -
ISSN:
2073-445X
Subject:
vapor pressure deficit,   etc   ; carbon dioxide; climate; climate change; forest management; land cover; land use change; leaf area index; terrestrial ecosystems; China;     Show all 10 Subjects
Abstract:
... China’s contribution to global greening is regulated by increasing atmospheric CO₂ concentrations, climate change, and land use. Based on TRENDY project data, this study identified that the shifts in China’s contribution to the global leaf area index (LAI) trend strongly reduced during the warming hiatus, translating from 13.42 ± 26.45% during 1982–1998 into 7.91 ± 25.45% during 1999–2012. First, ...
DOI:
10.3390/land11030393

17. Automated detection of atmospheric and soil drought stress in Ficus benjamina using stem diameter measurements and modelling

Author:
Hans Van de Put; Kathy Steppe
Source:
Irrigation science 2022 v.40 no.1 pp. 29-43
ISSN:
0342-7188
Subject:
vapor pressure deficit,   etc   ; Ficus benjamina; automation; calibration; diurnal variation; horticulture; microclimate; sap flow; shrinkage; soil water content; turgor; water storage; water stress;     Show all 13 Subjects
Abstract:
... Plant stems show reversible diurnal fluctuation and irreversible growth, both related to plant water status. The reversible stem diameter shrinkage and swelling are caused by a depletion and refilling of the plant’s internal water storage pools, while irreversible growth occurs when turgor pressure exceeds a certain threshold value. For this reason, stem diameter measurements provide a useful tool ...
DOI:
10.1007/s00271-021-00757-9

18. Identifying microclimate tree seedling refugia in post-wildfire landscapes

Author:
C. Marsh; D. Krofcheck; M.D. Hurteau
Source:
Agricultural and forest meteorology 2022 v.313 pp. 108741
ISSN:
0168-1923
Subject:
vapor pressure deficit,   etc   ; forests; meteorology; microclimate; reforestation; refuge habitats; relative humidity; remote sensing; seedlings; shrublands; shrubs; temperature; trees; unmanned aerial vehicles; wildfires;     Show all 15 Subjects
Abstract:
... High-severity wildfire in arid regions has caused ecological state change, transforming previously forested areas into shrublands. This dramatically alters the microclimatic conditions, which can exceed the climatic tolerance of tree seedlings, rendering the likelihood of returning post-wildlife landscapes to their previous state relatively low. Characterizing microclimatic variability across seve ...
DOI:
10.1016/j.agrformet.2021.108741

19. The sensitivity of fuel moisture to forest structure effects on microclimate

Author:
Tegan P Brown; Assaf Inbar; Thomas J. Duff; Patrick N.J. Lane; Gary J. Sheridan
Source:
Agricultural and forest meteorology 2022 v.316 pp. 108857
ISSN:
0168-1923
Subject:
vapor pressure deficit,   etc   ; fire behavior; forests; fuel moisture index; fuels (fire ecology); landscapes; meteorology; microclimate; risk; shortwave radiation; summer; terrestrial radiation; wildfires;     Show all 13 Subjects
Abstract:
... An understanding of variation in dead fuel moisture content (FMC) is essential for accurate predictions of wildfire risk, particularly in productive wet forests where FMC is a primary control on fire activity. In these systems, forest structure and composition influence microclimate, which in turn effects FMC. However, changing disturbance regimes are altering forest structure and our understandin ...
DOI:
10.1016/j.agrformet.2022.108857

20. Hydrological and Meteorological Controls on Large Wildfire Ignition and Burned Area in Northern California during 2017–2020

Author:
Yusuke Hiraga; M. Levent Kavvas
Source:
Fire 2021 v.4 no.4 pp. -
ISSN:
2571-6255
Subject:
vapor pressure deficit,   etc   ; soil water; wildfires; wind speed; California;     Show all 5 Subjects
Abstract:
... This study examined the hydrological/meteorological controls on large wildfires > 10,000 acres (40.5 km²) during 2017–2020 in Northern California at spatial and temporal scales of the target wildfires’ occurrence or growth. This study used the following simple indices for analysis: Moisture Deficit Index (MDI) computed by dividing vapor pressure deficit by soil moisture, MDIWIND computed by multip ...
DOI:
10.3390/fire4040090