Results 11 to 20 of about 2,059 (166)

Rural household's willingness to pay for irrigation water use: An application of contingent valuation method, in the case of North Shewa zone, Ethiopia

open access: yesWorld Water Policy, Volume 9, Issue 4, Page 943-959, November 2023., 2023
Abstract This study aimed to evaluate household's willingness to pay (WTOP) for irrigation water use (IWU) per timad (0.25 ha) of the irrigable land per year and to analyze determinants of WTOP for IWU at individual households based on the contingent valuation method (CVM).
Biruk Kemaw Shenkute   +3 more
wiley   +1 more source

Threatened species are disproportionately important interactors in a seed dispersal network in Southeast Asia 东南亚地区濒危物种在种子散布网络中扮演着关键性角色

open access: yesIntegrative Conservation, Volume 1, Issue 1, Page 25-39, December 2022., 2022
The rainforests of Southeast Asia have a high diversity of animals, many of which eat fruit and disperse the seeds of forest plants. Several large‐bodied species occur in these forests; these animals are predicted to have especially important seed dispersal roles but are also among the species most threatened by defaunation.
Aurélie Albert‐Daviaud   +8 more
wiley   +1 more source

Tropical and subtropical Asia's valued tree species under threat

open access: yesConservation Biology, Volume 36, Issue 3, June 2022., 2022
Abstract Tree diversity in Asia's tropical and subtropical forests is central to nature‐based solutions. Species vulnerability to multiple threats, which affect provision of ecosystem services, is poorly understood. We conducted a region‐wide, spatially explicit assessment of the vulnerability of 63 socioeconomically important tree species to ...
Hannes Gaisberger   +72 more
wiley   +1 more source

The effectiveness of forecast‐based humanitarian assistance in anticipation of extreme winters: a case study of vulnerable herders in Mongolia

open access: yesDisasters, Volume 46, Issue 1, Page 95-118, January 2022., 2022
This paper presents evidence relating to a forecast‐based cash and non‐food item distribution among vulnerable herder households during the 2017–18 dzud (extreme winter) season in Mongolia, and analyses the results of a quasi‐experimental study evaluating its impacts. An innovative approach in disaster risk reduction, forecast‐based financing (FbF) can
Clemens Gros   +6 more
wiley   +1 more source

Natural enemies have inconsistent impacts on the coexistence of competing species

open access: yesJournal of Animal Ecology, Volume 90, Issue 10, Page 2277-2288, October 2021., 2021
Using a large competition experiment and a modern coexistence theory framework, the authors tested the impact of a generalist parasitoid wasp on competition between Drosophila hosts. They found the generalist natural enemy could alter the fitness differences between Drosophila species, but that the impact on pairwise coexistence was mixed. Abstract The
J. Christopher D. Terry   +2 more
wiley   +1 more source

Sun Bear Ecology and Conservation: Multiscale Habitat Associations in Southeast Asia 马来熊的生态与保护:东南亚地区的多尺度生境关联研究

open access: yesIntegrative Conservation, Volume 5, Issue 1, Page 125-136, March 2026.
We collated detections of the sun bear from new and previously published camera trap studies across its range. We then analysed these detections at two different spatial scales to assess the habitat associations and diel activity of this species. We found that the sun bear is tolerant to moderate habitat disturbances. ABSTRACT Degraded tropical forests,
Alexander Hendry   +5 more
wiley   +1 more source

Integrating Plant Tissue Culture and DNA Barcoding: Cutting‐Edge Technologies for Plant Conservation in Sri Lanka 整合植物组织培养与dna条形码技术:斯里兰卡植物保护的前沿技术

open access: yesIntegrative Conservation, Volume 4, Issue 4, Page 555-568, December 2025.
Sri Lanka's biodiversity is threatened by habitat loss, climate change, and ineffective traditional conservation methods. Integrating plant tissue culture and DNA barcoding offers scalable, precise tools for conserving rare and endemic species. This review emphasizes the potential of biotechnological approaches to enhance conservation accuracy and ...
Mylange Dona Kasundi Mekhala Gunasena   +2 more
wiley   +1 more source

降雨类型与坡度对棕壤垄沟系统产流产沙的影响

open access: yesShuitu Baochi Xuebao, 2020
为深入理解棕壤垄作坡耕地的土壤侵蚀机理,利用1.60 m×0.53 m的试验土槽,设计2个降雨类型,即增强型(70~70~100~100 mm/h)和减弱型(100~100~70~70 mm/h),以及2个坡度(9°和18°)的人工模拟降雨试验。每个雨型分2个阶段(阶段I、阶段Ⅱ),每个阶段进行相同雨强的2个场次降雨,每个场次降雨历时20 min。结果表明:(1)雨强对径流量呈显著影响(P70 mm/h时的径流量。在减弱型雨型下,坡度对径流量影响显著(P 18°增强型;总产沙量从大到小依次为:18 ...
徐相忠, 刘前进, 张含玉
doaj  

人工藻结皮形成过程中表土非降雨型水分吸收的变化情况 [PDF]

open access: yes, 2010
在干旱、半干旱地区,表土非降雨型水分吸收对于植物、生物结皮以及一些小型动物都起着非常重要的作用.本研究对库布齐沙漠中各种水分吸收类型进行了调查,并对人工结皮形成过程中水分吸收的变化进行了跟踪监测.结果发现,在实验区,从空气中吸收的水分占表土水分吸收量的25.07%~39.83%,其主要是通过水汽吸附机制进行.相比之下,表土从深层土壤吸收的水分更多,大约占到水分吸收量的60.17%~74.93%.人工结皮的形成促进了表土水分的吸收,但吸收水分的增加并非在接种后或结皮形成后立即表现出来,而是在结皮形成后 ...
兰书斌   +5 more
core  

The Propensity of Rural Youth to Take Rain‐Fed Smallholder Farming as Their Livelihood Strategy in KwaZulu‐Natal (South Africa): A Multinomial Logit Analysis

open access: yesPoverty &Public Policy, Volume 17, Issue 4, December 2025.
ABSTRACT With most unemployed youth residing in rural areas of South Africa, incentivising youth participation in smallholder farming can help address the increasing youth unemployment crisis. The study integrated the theory of planned behavior and the sustainable livelihood framework to investigate the factors influencing rural youth participation in ...
Humbulani Portia Rambuda   +2 more
wiley   +1 more source

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