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Devouring the Invaders: The Racial‐Ecological Politics of the Chinese Crayfish Trade in Kenya

open access: yesAmerican Anthropologist, Volume 128, Issue 1, Page 183-194, March 2026.
ABSTRACT This article examines entanglements of ecology, race, and foodways at Lake Naivasha in Kenya. Nonnative Louisiana red swamp crayfish (Procambarus clarkii), first introduced to Kenya in the 1960s, were once viewed as invasive but are now sought after as a delicacy among Kenya's Chinese community.
Amanda Kaminsky
wiley   +1 more source

绿洲-荒漠交错带不同沙丘土壤水分时空动态变化规律

open access: yesShuitu Baochi Xuebao, 2007
绿洲-漠交错带是植被恢复的一个重要区域,而植被恢复的关键又是了解沙丘土壤水分的变化规律。从2003年10月到2004年10月,对甘肃省张掖绿洲-荒漠交错带沙丘土壤水分进行了连续观测,并研究了生态垫在沙漠治理中的应用。结果表明:土壤水分时空动态变化主要受降雨、植被以及地表覆盖等因素的影响,沙丘土壤水分月变化滞后于降水变化。沙丘剖面土壤水分变异系数随土层深度的增加而减小,铺设生态垫减小了沙丘土壤水分的空间变异(CV=4.43%),流动沙丘0~40cm的含水量(0.19%~1.27%)低于固定沙丘(1.61%~
李禄军   +4 more
doaj   +2 more sources

复合侵蚀作用下砒砂岩坡面侵蚀泥沙颗粒特征

open access: yesShuitu Baochi Xuebao, 2021
明晰砒砂岩坡面侵蚀泥沙颗粒输移特征是研究黄河泥沙淤积问题的关键。采用水力、风力、冻融复合侵蚀实体模拟技术,研究在35°坡度和110 mm/h雨强条件下单一水蚀、冻融+水蚀、冻融+风蚀+水蚀3组不同侵蚀动力复合作用下,砒砂岩坡面侵蚀泥沙颗粒变化特征。结果表明:砒砂岩坡面在单一水蚀作用下以整体侵蚀为主,侵蚀泥沙颗粒变化稳定;冻融+水蚀作用下粗颗粒产出明显,冻融作用对粗颗粒的影响凸显;冻融+风蚀+水蚀作用下坡面稳定性最差,侵蚀泥沙颗粒变化最剧烈。复合侵蚀作用下坡面侵蚀过程以搬运粒径较大的泥沙颗粒为主 ...
高玄娜   +4 more
doaj  

Effects of Vegetation Restoration on Soil Infiltration and Runoff in the Gully Regions on the Loess Plateau [PDF]

open access: yes
[Objective] To study the effects of vegetation restoration on rainfall infiltration and runoff is of great theoretical and practical value for rational utilization of watershed water resources and ecological construction.
BAI Yungang   +4 more
core   +1 more source

The Limits of Depoliticized Water–Energy Diplomacy: Insights From the UAE–Israel–Jordan Water‐for‐Energy Deal

open access: yesWorld Water Policy, Volume 12, Issue 1, February 2026.
ABSTRACT This paper examines the rise and collapse of the 2021 United Arab Emirates (UAE)–Israel–Jordan Water‐for‐Energy Deal, a landmark initiative that sought to exchange Jordanian solar energy for Israeli desalinated water. Presented as a breakthrough in regional cooperation and environmental peacebuilding, the agreement was brokered under the ...
Majed Abu‐Zreig, Hussam Hussein
wiley   +1 more source

黄河中游昕水河流域水沙变化及归因研究

open access: yesShuitu Baochi Xuebao, 2021
为了探讨人类活动和气候变化对黄河流域水沙情势的影响,选取黄河中游典型流域——昕水河流域为研究区域,分析流域1958—2015年水文气象年际变化规律,采用Mann-Kendall检验法和Pettitt检验法对流域径流量、输沙量及含沙量进行趋势分析和突变检验,并分别利用双累积曲线法、回归分析法和弹性系数法对水沙变化的归因进行了对比评价。结果表明:(1)流域多年平均径流量、输沙量和含沙量分别为32.0 mm,1 289.1 t/km2和33.7 kg/m3,年径流量、输沙量和含沙量均呈现显著下降趋势 ...
夏露   +5 more
doaj  

Assessing the Corn Belt as an anthropogenic barrier to migrating landbirds in the United States

open access: yesConservation Biology, Volume 39, Issue 5, October 2025.
Abstract Migrating landbirds adjust their flight and stopover behaviors to efficiently cross inhospitable geographies, such as the Gulf of Mexico and the Sahara Desert. In addition to these natural barriers, birds may increasingly encounter anthropogenic barriers created by large‐scale changes in land use. One such barrier could be the Corn Belt in the
Fengyi Guo   +7 more
wiley   +1 more source

Long-Term Trends of Macrobenthos in Southern Bohai Sea, China, in Relation toEnvironmental Changes [PDF]

open access: yes, 2016
根据50多年来渤海南部海域大型底栖动物群落的历史资料,以及2011~2013年的现场调查数据,从渤海南部包括黄河口邻近海域及莱州湾大型底栖动物群落结构变化特征出发,分析了其长期演变的过程和规律,旨在阐明底栖动物群落的演变趋势,识别其重要的演变时段.并结合50年来渤海南部海域相关底栖环境因子的变化特征,探讨底栖动物群落的演变原因.过去50余年来,渤海南部海域大型底栖动物群落在物种数、生物量、丰度以及群落结构组成等方面都发生了较大的变动,具体表现为寿命长、体积大、具有高竞争力的K对策种的优势地位正逐渐丧失 ...
周政权   +5 more
core  

On the normative roles of biodiversity and naturalness in conservation

open access: yesConservation Biology, Volume 39, Issue 5, October 2025.
Abstract Nature is an opaque concept. Consequently, the term biodiversity conservation has replaced nature conservation in most conservation contexts. We review the conceptual indeterminacies that plague the terms nature and natural but then show that comparable difficulties plague biodiversity.
David Saltz, Shlomo Cohen
wiley   +1 more source

Reoccurrence of Dust Storms in South Asia and Their Implications for Vegetation Health 南亚沙尘暴的再次出现及其对植被健康的影响

open access: yesIntegrative Conservation, Volume 4, Issue 3, Page 362-380, September 2025.
Occurrences of dust storms and long‐distance movement of dust across landscapes is constantly increasing in south Asia. This dust is expected to have profound impact on vegetation health and sustainability as dust may contribute to nutrient budgets of the forest ecosystems, while it could impart various stresses to the plants.
Shree P. Pandey   +2 more
wiley   +1 more source

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