Results 131 to 140 of about 342,599 (308)

Study on the disaster mechanism and prevention technology of embankment slip-collapse after extreme rainfall in the loess area

open access: yesScientific Reports
This study investigates railway embankment slip-collapse disasters triggered by July 2021 extreme rainfall in Zhengzhou, China, through field investigations, in-situ tests, laboratory tests, field monitoring, and numerical simulations.
Jiawei Fan   +7 more
doaj   +1 more source

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

open access: yesAmerican 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   +5 more
wiley   +1 more source

Climatic and human influences on water resources in low atolls [PDF]

open access: yes, 2005
Low, small islands have water supply problems amongst the most critical in the world. Fresh groundwater, the major source of water in many atolls, is vulnerable to natural and human-induced changes.
Dray, Anne   +6 more
core  

Climate change and perennial crop production: Evidence of yield impact and adaptation in California

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Perennial crops are economically important. They contribute to food security, providing essential nutrients that are often lacking in annual crops, and provide additional environmental benefits compared with annual crops. Despite their importance, empirical research on the impacts of climate change and adaptation on perennial crops remains ...
Yuanyuan Wen   +2 more
wiley   +1 more source

Slope reliability assessment using an innovative critical failure path approach

open access: yesFrontiers in Earth Science
Slope instability, driven by factors such as rainfall, seismic activity, and human influence, presents a pervasive hazard worldwide. Timely assessment of slope stability and accurate identification of its most critical slip surface are important for ...
Xiyang Tang   +4 more
doaj   +1 more source

Drivers of insect herbivory resistance and tolerance to plant damage in the Brachypodium distachyon species complex

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Insect herbivory is a major biotic factor shaping plant populations and driving the evolution of defensive traits. Polyploidy (whole‐genome duplication) often induces substantial phenotypic and genotypic changes that may affect species interactions, including herbivory.
Antonio J. Manzaneda   +4 more
wiley   +1 more source

Implementing an Indigenous Research Methodology to Develop a Culturally Appropriate Survey and Yarning Protocol: Challenges With Retention of the Aboriginal Health, Ageing and Disability Workforce

open access: yesAustralian Journal of Social Issues, EarlyView.
ABSTRACT Aboriginal staff play a vital part in improving culturally safe and effective services and supports for Aboriginal people. Research on the Aboriginal workforce helps advance a culturally safe environment for workers and Aboriginal people accessing health and community services. This study aims to identify the barriers and enablers to workforce
F. Talbot   +10 more
wiley   +1 more source

Spatiotemporal variation characteristics and water flow path of soil moisture of the critical zones fissures in karst area

open access: yesCarsologica Sinica
The dynamics of soil moisture in the critical karst zone fissures and their controlling factors form the foundation for studying ecological hydrological processes in this region.
Jixiang YANG   +6 more
doaj   +1 more source

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