Results 61 to 70 of about 25,084 (264)

Simulation of hydrological balance on experimental catchments Všeminka and Dřevnice in the extreme periods 1992 and 1997

Plant, Soil and Environment, 2004
Hydrological research on the Všeminka and Dřevnice experimental catchments has been carried out for almost ten years. Earlier analyses on these catchments have provided many partial results in the assessment of land use on water regime and also some ...
P. Kovář, P. Cudlín, J. Šafář
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

Performance Assessment of Five Water Balance Models for Runoff Simulation in the Gorganrood Watershed

علوم آب و خاک, 2022
Surface runoff is one of the most significant components of the water cycle, which increases soil erosion and sediment transportation in rivers and decreases the water quality of rivers.
F. Daechini, M. Vafakhah, V. Moosavi, M. Zabihi Silabi   +3 more
doaj  

Accounting for animal health in efficiency analysis: An application to Swedish dairy farms

American Journal of Agricultural Economics, EarlyView.
Abstract Poor animal health is a central concern in modern livestock production. Despite the necessity to incorporate animal health in efficiency analysis, the theoretical and empirical developments are limited on this subject. This article appropriately characterizes the axiomatic properties of animal health within a production framework.
Frederic Ang, Enoch Owusu‐Sekyere, Karin Alvåsen, Helena Hansson   +3 more
wiley   +1 more source

Food inflation pass‐through from agricultural imports in a small open economy

American Journal of Agricultural Economics, EarlyView.
Abstract This paper develops a new framework for quantifying cost pass‐through in a small open economy by estimating firm‐level markup responses to agricultural import price shocks. We show theoretically that markup adjustments depend on firms' reliance on imported inputs and demand curvature, generating heterogeneous inflationary effects across firm ...
Minseong Kang, Seungki Lee
wiley   +1 more source

Global patterns in vegetation accessible subsurface water storage emerge from spatially varying importance of individual drivers

Environmental Research Letters
Vegetation roots play an essential role in regulating the hydrological cycle by removing water from the subsurface and releasing it to the atmosphere. However, the present understanding of the drivers of ecosystem-scale root development and their spatial
Fransje van Oorschot, Markus Hrachowitz, Tom Viering, Andrea Alessandri, Ruud J van der Ent   +4 more
doaj   +1 more source

Redistributive land reforms, agricultural productivity, and structural change: New cross‐national evidence

American Journal of Agricultural Economics, EarlyView.
Abstract Large‐scale land reforms constitute a substantial redistribution of wealth and reallocation of agricultural land, which is a major form of asset and production input in developing countries. While land redistribution (from the rich to the poor) remains a highly controversial issue, extensive evidence on its effect is limited.
Devashish Mitra, Abdulaziz B. Shifa, Lan Anh Tong, Mehmet A. Ulubasoglu   +3 more
wiley   +1 more source

Human Interference Quantification and Representation in Hydrological Models—Introduction to the Special Collection on Quantifying Human Interferences in Hydrology

Water Resources Research
This article introduces papers published in the special collection of Water Resources Research on quantifying human interferences (or interventions in general) in hydrology and embedding them within large‐scale hydrological models.
Ximing Cai
doaj   +1 more source

Key Technologies and Prospects for Synergistic Application of Large Language Models and Hydrological Models [PDF]

长江科学院院报
[Objective] Traditional hydrological models are mostly designed for specific scenarios, representing simplifications of complex physical processes or fitting of historical data.
LIN Zi-yuan, ZHAO Qiang, ZHANG Chi, WU Tong, LI Chong
doaj   +1 more source

How does the Kids SIPsmartER program impact the sugar‐sweetened beverage intake of students: An investigation beyond total treatment effect in randomized controlled trial

American Journal of Agricultural Economics, EarlyView.
Abstract This study develops and empirically estimates a structural framework to decompose the causal pathways of multilevel behavioral interventions targeting adolescent health behaviors. We apply this framework to the Kids SIPsmartER (KSS) program, a 6‐month, school‐based intervention evaluated through a clustered randomized controlled trial in rural
Naveen Abedin, Wen You, Annie Reid, Kathleen Porter, Brittany Kirkpatrick, Jamie Zoellner   +5 more
wiley   +1 more source