Jump to Main Content
PubAg
Main content area
Search
« Previous |
1 - 20 of 731
|
Next »
Search Results
- Author:
- Alburn, Nathan E.; Niemann, Jeffrey D.; Elhaddad, Aymn
- Source:
- Hydrological processes 2015 v.29 no.26 pp. 5354-5368
- ISSN:
- 0885-6087
- Subject:
- evapotranspiration, etc ; Landsat; algorithms; energy balance; grasslands; remote sensing; soil water; summer; temporal variation; Colorado; Show all 10 Subjects
- Abstract:
- ... Various remote‐sensing methods are available to estimate soil moisture, but few address the fine spatial resolutions (e.g. 30‐m grid cells) and root‐zone depth requirements of agricultural and other similar applications. One approach that has been previously proposed to estimate fine‐resolution soil moisture is to first estimate the evaporative fraction from an energy balance that is inferred from ...
- DOI:
- 10.1002/hyp.10562
- CHORUS:
- 10.1002/hyp.10562
-
http://dx.doi.org/10.1002/hyp.10562
- Author:
- Singh, Ramesh K.; Senay, Gabriel B.
- Source:
- Water 2015 v.8 no.1
- ISSN:
- 2073-4441
- Subject:
- evapotranspiration, etc ; Landsat; algorithms; cropland; energy balance; equations; grasslands; image analysis; net radiation; temporal variation; water management; Nebraska; Show all 12 Subjects
- Abstract:
- ... The development of different energy balance models has allowed users to choose a model based on its suitability in a region. We compared four commonly used models—Mapping EvapoTranspiration at high Resolution with Internalized Calibration (METRIC) model, Surface Energy Balance Algorithm for Land (SEBAL) model, Surface Energy Balance System (SEBS) model, and the Operational Simplified Surface Energ ...
- DOI:
- 10.3390/w8010009
-
http://dx.doi.org/10.3390/w8010009
- Author:
- Gao, Bing; Qin, Yue; Wang, Yuhan; Yang, Dawen; Zheng, Yuanrun
- Source:
- Forests 2015 v.7 no.1
- ISSN:
- 1999-4907
- Subject:
- evapotranspiration, etc ; air temperature; alpine meadows; altitude; atmospheric precipitation; basins; forests; model validation; models; population distribution; rivers; runoff; shrubs; socioeconomic development; soil water; water yield; watersheds; China; Show all 18 Subjects
- Abstract:
- ... The Heihe River is the second largest inland basin in China; runoff in the upper reach greatly affects the socio-economic development in the downstream area. The relationship between spatial vegetation patterns and catchment hydrological processes in the upper Heihe basin has remained unclear to date. In this study, a distributed ecohydrological model is developed to simulate the hydrological proc ...
- DOI:
- 10.3390/f7010010
-
http://dx.doi.org/10.3390/f7010010
- Author:
- Raz-Yaseef, Naama; Billesbach, Dave P.; Fischer, Marc L.; Biraud, Sebastien C.; Gunter, Stacey A.; Bradford, James A.; Torn, Margaret S.
- Source:
- Agriculture, ecosystems & environment 2015 v.213 pp. 209
- ISSN:
- 0167-8809
- Subject:
- evapotranspiration, etc ; Panicum virgatum; atmospheric precipitation; carbon; carbon sinks; cropland; crops; degradation; drought; drying; ecosystems; eddy covariance; evaporation; fields; grasses; grazing intensity; growing season; harvesting; heat; indigenous species; land cover; nutrient uptake; pastures; prairies; prediction; primary productivity; soil water; spring; summer; temperature; water balance; winter wheat; Great Plains region; United States; Show all 34 Subjects
- Abstract:
- ... The Southern Great Plains are characterized by a fine-scale mixture of different land-cover types, predominantly winter-wheat and grazed pasture, with relatively small areas of other crops, native prairie, and switchgrass. Recent droughts and predictions of increased drought in the Southern Great Plains, especially during the summer months, raise concern for these ecosystems. We measured ecosystem ...
- Handle:
- 10113/61426
- DOI:
- 10.1016/j.agee.2015.07.021
-
https://dx.doi.org/10.1016/j.agee.2015.07.021
- Author:
- Fandiño, M.; Olmedo, J.L.; Martínez, E.M.; Valladares, J.; Paredes, P.; Rey, B.J.; Mota, M.; Cancela, J.J.; Pereira, L.S.
- Source:
- Industrial crops and products 2015 v.77 pp. 204-217
- ISSN:
- 0926-6690
- Subject:
- evapotranspiration, etc ; Humulus lupulus; alpha acids; beta acids; bitter acids; crop coefficient; crop yield; developmental stages; evaporation; irrigation management; linear models; regression analysis; soil water; soil water balance; soil water content; transpiration; Spain; Show all 17 Subjects
- Abstract:
- ... This study was conducted during three seasons (2012–2014) in an experimental hop yard at Mabegondo, Galicia, NW Spain. The research aimed at calibrating and validating the soil water balance model SIMDualKc for Humulus lupulus L. cv. ‘Nugget’. The model computes the soil water balance using the dual Kc approach, thus partitioning crop evapotranspiration (ETc) into crop transpiration, ground cover ...
- DOI:
- 10.1016/j.indcrop.2015.08.042
-
https://dx.doi.org/10.1016/j.indcrop.2015.08.042
- Author:
- Tuzel, I. H.; Tunali, U.; Tuzel, Y.; Oztekin, G. B.
- Source:
- Acta horticulturae 2015 no.1107 pp. 215-220
- ISSN:
- 0567-7572
- Subject:
- evapotranspiration, etc ; crop yield; deficit irrigation; eggplants; greenhouses; growing season; irrigation rates; irrigation water; mycorrhizae; nutrient solutions; polyethylene; soilless culture; solar radiation; spring; tomatoes; water use efficiency; Show all 16 Subjects
- Abstract:
- ... A study was carried out to determine the effects of mycorrhiza application and irrigation programs on soilless grown tomato plants under polyethylene covered unheated greenhouse conditions. Three irrigation programs (full irrigation, deficit 1 and deficit 2) based on integrated indoor solar radiation (Rs) triggering thresholds (1, 3 and 6 MJ m-2) in the case of mycorrhizal inoculation (VAM) or not ...
- DOI:
- 10.17660/ActaHortic.2015.1107.29
-
http://dx.doi.org/10.17660/ActaHortic.2015.1107.29
- Author:
- TerAvest, Dan; Carpenter-Boggs, Lynne; Thierfelder, Christian; Reganold, John P.
- Source:
- Agriculture, ecosystems & environment 2015 v.212 pp. 285-296
- ISSN:
- 0167-8809
- Subject:
- evapotranspiration, etc ; no-tillage; sweet potatoes; small-scale farming; drought; crop yield; Isoptera; disturbed soils; sediments; correlation; cowpeas; farms; infiltration (hydrology); runoff; soil water content; conventional tillage; agroecological zones; water management; corn; soil water; earthworms; water holding capacity; crop rotation; cassava; water use efficiency; soybeans; soil erosion; Malawi; Eastern Africa; Show all 29 Subjects
- Abstract:
- ... Smallholder farming in southern and eastern Africa is constrained by low water-use efficiency, frequent dry spells, and drought. Conservation agriculture (CA), defined as minimal soil disturbance, year-round ground cover, and crop rotations, is being promoted as a way to sustainably improve water-use efficiency, reduce soil erosion, and boost crop production. In this study, three cropping systems ...
- DOI:
- 10.1016/j.agee.2015.07.011
-
https://dx.doi.org/10.1016/j.agee.2015.07.011
- Author:
- Tyszka, Jan; Stolarek, Andrzej; Fronczak, Ewa
- Source:
- Papers on global change IGBP 2015 v.21 no.1 pp. 29-50
- ISSN:
- 1730-802X
- Subject:
- evapotranspiration, etc ; Picea; Pinus sylvestris; absorption; biomass production; carbon dioxide; climate change; coniferous forests; defoliation; dominant species; environmental factors; growing season; habitats; lowland forests; periodicity; summer; trees; water resources; water table; Poland; Show all 20 Subjects
- Abstract:
- ... The influence of water conditions on the condition and growth of tree stands has been analysed in the context of the climatic and hydrological functions forest plays. Long observational series obtained for precipitation, outflow and depths below the surface of the water table have been put together with measured increases in the breast-height diameters of Scots pines and the severity of crown defo ...
- DOI:
- 10.1515/igbp-2015-0002
-
http://dx.doi.org/10.1515/igbp-2015-0002
- Author:
- Chen, Yun; Liu, Rui; Barrett, Damian; Gao, Lei; Zhou, Mingwei; Renzullo, Luigi; Emelyanova, Irina
- Source:
- The Science of the total environment 2015 v.538 pp. 512-523
- ISSN:
- 0048-9697
- Subject:
- evapotranspiration, etc ; basins; case studies; climate; climate change; coal; computer software; digital elevation models; drainage; geographic information systems; mining; multi-criteria decision making; rain; remote sensing; risk; risk assessment; rivers; soil water; soil water potential; soil water retention; stream flow; time series analysis; topography; uncertainty; vegetation; water management; Queensland; Show all 27 Subjects
- Abstract:
- ... Australian coal mines have been facing a major challenge of increasing risk of flooding caused by intensive rainfall events in recent years. In light of growing climate change concerns and the predicted escalation of flooding, estimating flood inundation risk becomes essential for understanding sustainable mine water management in the Australian mining sector. This research develops a spatial mult ...
- DOI:
- 10.1016/j.scitotenv.2015.08.094
-
http://dx.doi.org/10.1016/j.scitotenv.2015.08.094
- Author:
- Wagle, Pradeep; Xiao, Xiangming; Scott, Russell L.; Kolb, Thomas E.; Cook, David R.; Brunsell, Nathaniel; Baldocchi, Dennis D.; Basara, Jeffrey; Matamala, Roser; Zhou, Yuting; Bajgain, Rajen
- Source:
- Agricultural and forest meteorology 2015 v.214-215 pp. 293-305
- ISSN:
- 0168-1923
- Subject:
- evapotranspiration, etc ; air temperature; annual grasslands; canopy; carbon; climate change; ecosystems; eddy covariance; forests; meteorological data; moderate resolution imaging spectroradiometer; prediction; primary productivity; temporal variation; vapor pressure; vegetation index; water use efficiency; water vapor; United States; Show all 19 Subjects
- Abstract:
- ... Understanding of the underlying causes of spatial variation in exchange of carbon and water vapor fluxes between grasslands and the atmosphere is crucial for accurate estimates of regional and global carbon and water budgets, and for predicting the impact of climate change on biosphere–atmosphere feedbacks of grasslands. We used ground-based eddy flux and meteorological data, and the Moderate Reso ...
- Handle:
- 10113/5354172
- DOI:
- 10.1016/j.agrformet.2015.08.265
- Chorus Open Access:
- 10.1016/j.agrformet.2015.08.265
-
https://dx.doi.org/10.1016/j.agrformet.2015.08.265
- Author:
- Shinohara, Yoshinori; Levia, Delphis F.; Komatsu, Hikaru; Nogata, Mari; Otsuki, Kyoichi
- Source:
- Agricultural and forest meteorology 2015 v.214-215 pp. 148-156
- ISSN:
- 0168-1923
- Subject:
- evapotranspiration, etc ; plantations; canopy; stems; models; Cryptomeria japonica; water resources; pruning; stand basal area; forests; Japan; Show all 11 Subjects
- Abstract:
- ... In the last several years, thinning has been conducted in coniferous plantations throughout Japan, mainly to secure water resources. Although canopy interception loss (Ic) is a major component of evapotranspiration, this is among the first studies that have examined changes in Ic while considering the effects of thinning in Japanese cedar (Cryptomeria japonica) forests, the most common type of pla ...
- DOI:
- 10.1016/j.agrformet.2015.08.257
-
http://dx.doi.org/10.1016/j.agrformet.2015.08.257
- Author:
- Guo, Qun; Hu, Zhongmin; Li, Shenggong; Yu, Guirui; Sun, Xiaomin; Zhang, Leiming; Mu, Songlin; Zhu, Xianjin; Wang, Yanfen; Li, Yingnian; Zhao, Wei
- Source:
- Agricultural and forest meteorology 2015 v.214-215 pp. 169-177
- ISSN:
- 0168-1923
- Subject:
- evapotranspiration, etc ; air temperature; alpine meadows; carbon dioxide; climate change; ecosystems; eddy covariance; net ecosystem exchange; primary productivity; soil water; soil water content; steppes; transpiration; water stress; China; Show all 15 Subjects
- Abstract:
- ... The impact of global climate change on precipitation regimes may bring about significant consequences to the productivity of grassland ecosystems. This study reports the effects of the characteristics of precipitation events (PEC, e.g., size, frequency, interval, and seasonal distribution of precipitation events) on gross primary productivity (GPP) based on long-term measurements of net ecosystem ...
- DOI:
- 10.1016/j.agrformet.2015.08.251
-
http://dx.doi.org/10.1016/j.agrformet.2015.08.251
- Author:
- Carmona, Facundo; Rivas, Raúl; Caselles, Vicente
- Source:
- Remote sensing of environment 2015 v.171 pp. 1-13
- ISSN:
- 0034-4257
- Subject:
- evapotranspiration, etc ; Landsat; latitude; meteorological data; models; remote sensing; Argentina; Show all 7 Subjects
- Abstract:
- ... Net radiation is a key variable in computing evapotranspiration and is a driving force in many other physical and biological processes. Remote sensing techniques provide an unparalleled spatial and temporal coverage of land-surface attributes, and thus several studies have attempted to estimate net radiation by combining remote sensing observations with surface and atmospheric data. However, remot ...
- DOI:
- 10.1016/j.rse.2015.10.003
-
http://dx.doi.org/10.1016/j.rse.2015.10.003
- Author:
- Swann, Abigail L.S.; Longo, Marcos; Knox, Ryan G.; Lee, Eunjee; Moorcroft, Paul R.
- Source:
- Agricultural and forest meteorology 2015 v.214-215 pp. 12-24
- ISSN:
- 0168-1923
- Subject:
- evapotranspiration, etc ; land use change; simulation models; energy; forests; pastures; wet season; deforestation; savannas; convection; climate models; ecosystems; indigenous species; runoff; drying; climate; crops; Amazonia; Brazil; Show all 19 Subjects
- Abstract:
- ... Ongoing agricultural expansion in Amazonia and the surrounding areas of Brazil is expected to continue over the next several decades as global food demand increases. The transition of natural forest and savannah ecosystems to pastureland and agricultural crops is predicted to create warmer and drier atmospheric conditions than the native vegetation. Using a coupled ecosystem regional atmospheric m ...
- DOI:
- 10.1016/j.agrformet.2015.07.006
-
http://dx.doi.org/10.1016/j.agrformet.2015.07.006
- Author:
- Li, Yan; Zhou, Jian; Wang, Haijing; Li, Dazhi; Jin, Rui; Zhou, Yanzhao; Zhou, Qingguo
- Source:
- Agricultural and forest meteorology 2015 v.214-215 pp. 306-318
- ISSN:
- 0168-1923
- Subject:
- evapotranspiration, etc ; Advanced Spaceborne Thermal Emission and Reflection Radiometer; algorithms; arid zones; biosphere; ecosystems; eddy covariance; energy balance; heat transfer; irrigated farming; irrigation management; microwave radiation; models; oases; polarimetry; remote sensing; rivers; semiarid zones; soil water; telemetry; water stress; watersheds; China; Show all 23 Subjects
- Abstract:
- ... Irrigated oases are the main water consumers in arid and semi-arid regions. As plant evapotranspiration (ET) in these regions mainly depends on irrigated water, accurate quantification of evapotranspiration (ET) on the irrigated oases is crucial for allocation and management of irrigation water resources. In this study, we integrated the soil moisture retrieved from Polarimetric L-band Multibeam R ...
- DOI:
- 10.1016/j.agrformet.2015.08.260
-
http://dx.doi.org/10.1016/j.agrformet.2015.08.260
- Author:
- Berg, Björn; Erhagen, Björn; Johansson, Maj-Britt; Nilsson, Mats; Stendahl, Johan; Trum, Florence; Vesterdal, Lars
- Source:
- Forest ecology and management 2015 v.358 pp. 248-260
- ISSN:
- 0378-1127
- Subject:
- evapotranspiration, etc ; manganese; carbon dioxide; manganese peroxidase; plant litter; mineral soils; nitrogen; mor; Picea abies; white-rot fungi; Pinus sylvestris; dissolved organic carbon; forest ecosystems; temperature; humus; lignin; Norway; Northern European region; Show all 18 Subjects
- Abstract:
- ... We have reviewed the literature on the role of manganese (Mn) in the litter fall-to-humus subsystem. Available data gives a focus on North European coniferous forests.Manganese concentrations in pine (Pinus spp.) foliar litter are highly variable both spatially and temporally within the same litter species and for the genus Pinus we found a range from 0.03 to 3.7mgg−1. Concentrations were related ...
- DOI:
- 10.1016/j.foreco.2015.09.021
-
https://dx.doi.org/10.1016/j.foreco.2015.09.021
- Author:
- Opluštil, Stanislav; Lojka, Richard; Rosenau, Nicholas A.; Strnad, Ladislav; Sýkorová, Ivana
- Source:
- Palaeogeography, palaeoclimatology, palaeoecology 2015 v.440 pp. 328-352
- ISSN:
- 0031-0182
- Subject:
- evapotranspiration, etc ; B horizons; Histosols; Vertisols; atmospheric precipitation; basins; climate; floodplains; geochemistry; landscapes; paleosolic soil types; peat; sediments; streams; vegetation cover; water table; Czech Republic; Show all 17 Subjects
- Abstract:
- ... Fluvial architecture in conjunction with the morphology, petrographical, mineralogical and geochemical composition of intercalated paleosols of the Middle Moscovian upper Radnice Member of the continental Kladno-Rakovník Basin, Czech Republic, were studied in order to decipher climatic signals in the eastern Pangea region during the Late Paleozoic Ice Age. Analysis of architectural elements reveal ...
- DOI:
- 10.1016/j.palaeo.2015.09.009
-
http://dx.doi.org/10.1016/j.palaeo.2015.09.009
- Author:
- Kane, Van R.; Cansler, C. Alina; Povak, Nicholas A.; Kane, Jonathan T.; McGaughey, Robert J.; Lutz, James A.; Churchill, Derek J.; North, Malcolm P.
- Source:
- Forest ecology and management 2015 v.358 pp. 62-79
- ISSN:
- 0378-1127
- Subject:
- evapotranspiration, etc ; topography; fire weather; canopy; managers; solar radiation; lidar; landscapes; fire severity; autocorrelation; models; drought; fuels; mountains; variance; burning; forest fires; climate; forests; California; Show all 20 Subjects
- Abstract:
- ... Recent and projected increases in the frequency and severity of large wildfires in the western U.S. makes understanding the factors that strongly affect landscape fire patterns a management priority for optimizing treatment location. We compared the influence of variations in the local environment on burn severity patterns on the large 2013 Rim fire that burned under extreme drought with those of ...
- DOI:
- 10.1016/j.foreco.2015.09.001
- Chorus Open Access:
- 10.1016/j.foreco.2015.09.001
-
https://dx.doi.org/10.1016/j.foreco.2015.09.001
- Author:
- Green, Mark B.; Laursen, Bethany K.; Campbell, John L.; McGuire, Kevin J.; Kelsey, Eric P.
- Source:
- Hydrological processes 2015 v.29 no.25 pp. 5193-5202
- ISSN:
- 0885-6087
- Subject:
- evapotranspiration, etc ; data collection; deuterium; evaporation; forested watersheds; forests; growing season; habitats; isotope fractionation; isotopes; soil water; water reuse; water vapor; New Hampshire; Show all 14 Subjects
- Abstract:
- ... Stable water isotopes provide a means of tracing many hydrologic processes, including poorly understood dynamics like soil water interactions with the atmosphere. We present a four‐year dataset of biweekly water isotope samples from eight fluxes and stores in a headwater catchment at the Hubbard Brook Experimental Forest, New Hampshire, USA. We use Dansgaard's deuterium excess (d) parameter to inf ...
- DOI:
- 10.1002/hyp.10706
-
http://dx.doi.org/10.1002/hyp.10706
- Author:
- Liaqat, Umar Waqas; Choi, Minha
- Source:
- Agricultural and forest meteorology 2015 v.214-215 pp. 60-79
- ISSN:
- 0168-1923
- Subject:
- evapotranspiration, etc ; eddy covariance; cropland; models; least squares; radiometry; soil; vegetation cover; energy balance; energy flow; surface temperature; remote sensing; Landsat; ecosystems; heat transfer; grasslands; cold; prediction; Asia; Show all 19 Subjects
- Abstract:
- ... The reliable assessment of turbulent heat fluxes and evapotranspiration (ET) from the field to regional scales is fundamental to comprehending land-atmosphere interactions and water balance dynamics. In this study, we evaluated two single-source operational methodologies, the Surface Energy Balance System (SEBS) and Mapping Evapotranspiration at high Resolution with Internalized Calibration (METRI ...
- DOI:
- 10.1016/j.agrformet.2015.08.245
-
http://dx.doi.org/10.1016/j.agrformet.2015.08.245