Results 51 to 60 of about 1,943,084 (299)

Exploring coupled coordination and synergistic evolution in a multi-dimensional water system of the Yellow River Basin

Ecological Indicators
The Yellow River Basin (YRB) in China is a complex, multi-dimensional water system where water resources, water environment, water ecology, and water disaster—collectively referred to as the “Four-Water System (FWS)”—are intricately interconnected.
Huanghao Yu, Binquan Li, Huiming Zhang, Zeling Ren, Maihuan Zhao, Xindai An   +5 more
doaj   +1 more source

The joint probability distribution of runoff and sediment and its change characteristics with multi-time scales

Journal of Hydrology and Hydromechanics, 2014
River runoff and sediment transport are two related random hydrologic variables. The traditional statistical analysis method usually requires those two variables to be linearly correlated, and also have an identical marginal distribution.
Zhang Jinping, Ding Zhihong, You Jinjun
doaj   +1 more source

Hydrologic behaviour of residual soil slopes in Singapore

, 2003
Monitoring hydrologic responses of slopes is critical for advancing hillslope hydrologic studies. Storm- and time-based continuous hydrologic responses from three instrumented hillslopes in Singapore were monitored for a period of 420 days to observe the
Lee, T. T., Rezaur, R. B., Rahardjo, Harianto, Leong, Eng Choon   +3 more
core   +1 more source

Farm labor scarcity and its uneven impacts on crop producers in the United States

American Journal of Agricultural Economics, EarlyView.
Abstract This study is the first to evaluate the impacts of farm labor scarcity on producers in the United States across different crop production systems. Between 2002 and 2017, we disentangle the effects of labor scarcity from the impacts of rising commodity demand, technological change, and supply of other inputs on labor market outcomes.
Srabashi Ray, Alexandra E. Hill, Iman Haqiqi, J. Edward Taylor, Thomas W. Hertel   +4 more
wiley   +1 more source

Improving access to new technologies: An experiment with Kenyan input sellers

American Journal of Agricultural Economics, EarlyView.
Abstract Agrodealers play a critical role in rural economies, selling essential inputs for agricultural production, stocking new products, and providing farmers with technical advice. However, uncertainty can discourage them from stocking newer, less familiar products, limiting the availability of innovative technologies and leading to market failures ...
Sarah W. Kariuki, Francisca N. Muteti, Annemie Maertens, Michael Ndegwa, Hope Michelson, Mercy Mbugua, Jason Donovan   +6 more
wiley   +1 more source

Hydrologic Response of Sierra Nevada Mixed-Conifer Headwater Catchments to Vegetation Treatments and Wildfire in a Warming Climate

Frontiers in Forests and Global Change, 2020
We used a hydro-ecologic model (RHESSys) constrained by measurements of stream discharge, and spatially distributed snow and soil moisture, to simulate the impacts of operational forest treatments, historical wildfire and climate warming on productive ...
Phil C. Saksa, Phil C. Saksa, Martha H. Conklin, Christina L. Tague, Roger C. Bales   +4 more
doaj   +1 more source

Firm turnover under asymmetric information: Tanzania's agro‐dealer sector

American Journal of Agricultural Economics, EarlyView.
Abstract We study firm turnover (i.e., entry and exit) and its consumer implications in a market characterized by asymmetric information. Using a three‐round census of agro‐dealers in Tanzania's Morogoro Region, we document annual firm entry and exit rates of 33% and 17%, respectively.
Alix Naugler, Hope Michelson, Sarah Janzen, Christopher Magomba   +3 more
wiley   +1 more source

Research on the hydrologic cycle characteristics using stable isotopes of oxygen and hydrogen in the Jinxiuchuan Basin

Tecnología y ciencias del agua, 2017
Wang, T., Xu, Z., Zhang, S., Zhang, L., & Zhao, Z. (MarchApril, 2017). Research on the hydrologic cycle characteristics using stable isotopes of oxygen and hydrogen in the Jinxiuchuan Basin.
Wang Tong, Xu Zhenghe, Zhang Shengdong, Zhang Lizhi, Zhao Zhiqiang   +4 more
doaj   +1 more source

The causal effect of agricultural landscape simplification on Germany's grasslands during a compound drought and heatwave in 2018

American Journal of Agricultural Economics, EarlyView.
Abstract Preserving ecosystem services, along with economic and environmental benefits, will require future landscape policies to identify and incorporate relevant landscape features. In this paper, we investigate the causal effect of agricultural landscape simplification on drought‐related grassland damages.
Marco Ferro, Jan Börner, Silke Hüttel, Katja Kowalski, Patrick Hostert, Krisztina Kis‐Katos   +5 more
wiley   +1 more source

Actual Evapotranspiration (Water Use) Assessment of the Colorado River Basin at the Landsat Resolution Using the Operational Simplified Surface Energy Balance Model

Remote Sensing, 2013
Accurately estimating consumptive water use in the Colorado River Basin (CRB) is important for assessing and managing limited water resources in the basin.
Ramesh K. Singh, Gabriel B. Senay, Naga M. Velpuri, Stefanie Bohms, Russell L. Scott, James P. Verdin   +5 more
doaj   +1 more source