Results 11 to 20 of about 1,623 (116)
Shuitu 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
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Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Drylands are mainly structured by both vascular plants and biological soil crusts (biocrusts), the latter often regarded as a self‐organizing component of these ecosystems.
Haoran Luo +13 more
wiley +1 more source
International Journal of Applied Linguistics, EarlyView.ABSTRACT This qualitative multiple case study explores multilingual postgraduate students’ academic identities through writing at an EMI university in Hong Kong, with a focus on how they gain legitimacy in knowledge‑making with their multilingual repertoires. Grounded in a poststructuralist understanding of identities as fluid and negotiated, the study
Siqi Song, Ken Lau
wiley +1 more source
Shuitu Baochi Xuebao, 2023 为探究桂西北喀斯特区石灰土与红壤坡地幼龄橘园的降雨侵蚀特征,通过室内人工模拟降雨试验,研究3种降雨强度(30,60,90 mm/h)下,石灰土与红壤坡地幼龄橘园的产流产沙特征。结果表明:(1)降雨强度为30,60 mm/h时,红壤橘园的产流总量分别为石灰土橘园的2.46,1.83倍,且红壤橘园主要以地表产流为主,石灰土橘园主要以壤中流产流为主;当降雨强度为90 mm/h时,二者产流总量无显著性差异(p>0.05),均以地表产流为主。(2)石灰土橘园与红壤橘园地表径流强度随降雨强度增大而增大 ...
郑金德 +5 more
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World Water Policy, Volume 12, Issue 3, August 2026.ABSTRACT Groundwater depletion is a major challenge in semiarid, hard‐rock regions where irrigation demands often exceed natural recharge. This study evaluates the effectiveness of farm‐scale recharge pits as a local, supplementary, and community‐managed groundwater recharge solution in the Dharta catchment of Rajasthan, India. Alongside check dams and
Prahlad Soni +4 more
wiley +1 more source
World Water Policy, Volume 12, Issue 3, August 2026.ABSTRACT Bengaluru, a primary metropolitan centre in India, is currently grappling with the dual crises of urban flooding and severe groundwater depletion. These challenges are driven by rapid urbanization, which has seen built‐up areas increase from 42% to 86% over two decades, resulting in a dramatic loss of vegetation and wetlands.
S. Biswas, S. V. B. Patel, B. Maheshwari
wiley +1 more source
Integrative Conservation, Volume 5, Issue 1, Page 59-73, March 2026.This research reveals the functional stability of mixed species foraging flocks (MSF) and their foraging height change with different taxonomic differences along the elevational gradient at Knuckles Montane Reserve, Sri Lanka. This offers new insights into how MSFs sustain with the elevational gradients supporting the altitudinal shifting species ...
Vimukthi. R. Gunasekeara +3 more
wiley +1 more source
Shuitu Baochi Xuebao, 2011 通过室内模拟降雨研究降雨强度对含砾石土壤产沙及入渗的影响。结果表明:整个降雨过程中,60mm/h的降雨强度下,产沙率变化相对平稳,90mm/h和120mm/h的降雨强度下,土壤产沙率的变化均因为有细沟而产生波动,120mm/h的降雨强度下,细沟出现的时间较90mm/h的降雨强度提前了5～20min;降雨强度的增加导致土壤总产沙量也显著增加,当降雨强度从90mm/h增加到120mm/h时,总产沙量的增加量是降雨强度从60mm/h增加到90mm/h时总产沙量增加量的0.83～2.82倍;随着降雨强度的增加 ...
吴冰, 朱元骏, 邵明安
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Integrative 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
Shuitu Baochi Xuebao, 2017 为了研究人工红壤坡面对超大雨强降雨的响应过程，利用人工模拟降雨系统和变坡土槽，分别采用140，160，190 mm/h的雨强和10°，15°，20°，25°的坡度，对经过简单人工处理的红壤坡面在超大雨强降雨条件下的产流产沙响应过程进行了试验。结果表明：经过简单人工处理的红壤坡面在140~190 mm/h超大雨强下的土壤侵蚀模数明显低于50~120 mm/h雨强下未进行相应处理的坡面，细沟发育较为缓慢，对坡面土壤的处理方式能够有效提高坡面的抗侵蚀能力。在同雨强下，随着坡度的增加，产流时间先延长后缩短 ...
金, 谢斯琴, 宋, 汪
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