Results 91 to 100 of about 2,856,160 (294)

Development of Dynamic Drought Monitoring Thresholds for Summer Maize in Huang-Huai-Hai Region Using SIF Index

应用气象学报
In order to achieve dynamic monitoring of drought conditions for summer maize across Huang-Huai-Hai Region, solar-induced chlorophyll fluorescence (SIF) data, the Self-calibrating Palmer Drought Severity Index (SCPDSI), and actual disaster records from ...
Zhang Qianqian, Wu Dongli, Liu Mengxuan, Liu Cong   +3 more
doaj   +1 more source

Seeds of change: The impact of Ethiopia's direct seed marketing approach on smallholders' seed purchases and productivity

American Journal of Agricultural Economics, EarlyView.
Abstract While multiple factors explain low adoption rates of improved varieties by small‐scale farmers in sub‐Saharan Africa, a key supply‐side constraint is the limited availability of seed embodying new traits in the volume, quality, price, and timeliness required by farmers. This constraint is partly attributable to classical failures in the market
Dawit Mekonnen, Gashaw T. Abate, Seid Yimam, Rui Benfica, David J. Spielman, Frank Place   +5 more
wiley   +1 more source

Effect of drought stress on yield, proline and chlorophyll contents in three chickpea cultivars [PDF]

, 2010
Drought stress is one of the major abiotic stresses in agriculture worldwide. This study was carried out to investigate the effect of drought stress on proline content, chlorophyll content, photosynthesis and transpiration, stomatal conductance and yield
Siosemardeh, A., Mafakheri, A., Struik, P.C., Bahramnejad, B., Sohrabi, Y.   +4 more
core  

The Vegetation Drought Response Index (VegDRI): A New Integrated Approach for Monitoring Drought Stress in Vegetation [PDF]

, 2008
The development of new tools that provide timely, detailed-spatial-resolution drought information is essential for improving drought preparedness and response.
Brown, Jesslyn F., Tsegaye Tadesse, Reed, Bradley C., Bradley C. Reed, Tadesse, Tsegaye, Jesslyn F. Brown, Brian D. Wardlow, Wardlow, Brian D., Hayes, Michael, Michael J. Hayes   +9 more
core   +1 more source

Crop insurance and irrigation behavior: The conditional role of pumping costs

American Journal of Agricultural Economics, EarlyView.
Abstract Excessive water use for irrigation can accelerate the depletion of water resources, undermining agriculture's resilience to weather‐related shocks. Understanding how farmers make water use decisions is essential for developing effective water management policies.
Sungmin Cheu, Molly Sears
wiley   +1 more source

Impact of the potential evapotranspiration models on drought monitoring

Journal of Hydrology: Regional Studies
Study region: China Study focus: Potential evapotranspiration (PET) refers to the atmosphere evaporative demand, is a main factor in drought monitoring and prediction.
Weiqi Liu, Shaoxiu Ma, Haiyang Xi, Linhao Liang, Kun Feng, Atsushi Tsunekawa   +5 more
doaj   +1 more source

Enhancing drought monitoring and early warning by linking indicators to impacts

, 2015
Monitoring and Early-Warning (M&EW) systems are crucial for reducing societal vulnerability to drought. While there are a range of extant M&EW systems globally, such systems are typically based on physical (hydro-climatic) indicators, and they have ...
Acreman, M., Stahl, K., Knutson, C., Colloff, M.J., Svoboda, M.D., Bachmair, S., Crossman, N.D., Hannaford, J., Overton, I.C., Stahl, Kerstin, Crossman, N. D., Colloff, M. J., Overton, I. C., Svoboda, M. D., Hannaford, Jamie   +14 more
core   +1 more source

Reverse auctions for drought‐responsive water buybacks: Evidence from co‐designed lab and field experiments

American Journal of Agricultural Economics, EarlyView.
Abstract Protecting endangered aquatic species while sustaining farming communities can require water buyback programs that are both cost‐effective and responsive to the variability and unpredictability of drought conditions. Working in close partnership with The Nature Conservancy and the Georgia Water Planning and Policy Center, we co‐design parallel
Lusi Xie, Kent D. Messer, Leah H. Palm‐Forster, Mark Masters, Holly A. Michael, Kristin Rowles   +5 more
wiley   +1 more source

A dataset for monitoring agricultural drought in Europe

Scientific Data
Abstract This paper introduces the Combined Drought Indicator dataset, a collection of raster maps generated by the Copernicus European Drought Observatory for monitoring agricultural drought in Europe. Computationally, the CDI involves three indicators: the Standardized Precipitation Index, the Soil Moisture Anomaly and the Fraction of the ...
Guido Fioravanti, Andrea Toreti, Carmelo Cammalleri, Carolina Arias Muñoz, Davide Bavera, Alfred De Jager, Arthur Hrast Essenfelder, Chiara Di Ciollo, Dario Masante, Diego Magni, Juan Acosta Navarro, Marco Mazzesch, Willem Maetens   +12 more
openaire   +3 more sources

Linking community structure and climate vulnerability in desert plant assemblages of southern California

American Journal of Botany, EarlyView.
Abstract Premise Desert plant assemblages in southern California provide an opportunity to link patterns of community structure with climate‐driven vulnerability in a rapidly changing environment. California sustains an exceptionally diverse flora of approximately 4300 plant species, with 31% identified as endemic.
Hector Zumbado‐Ulate, Luis E. Barrios, Danelle A. Baronia, G. Darrel Jenerette, Lynn C. Sweet   +4 more
wiley   +1 more source