Results 1 to 10 of about 9,343 (105)
Shuitu Baochi Xuebao, 2006 为了探讨我国北方土石山区小流域雨水资源潜力及其水资源供需态势，为高效开发利用流域雨水资源和大规模开展生态环境建设工程提供理论依据。以代表该地区典型区域的鲁中南山区小流域为研究区域，在确定了小流域雨水资源理论潜力和现实潜力计算方法的基础上，对典型小流域雨水资源潜力及水资源供需平衡进行了定量分析。结果表明：该地区小流域总需水量中生态需水的比重最大，占总需水量的68．11％，农业生产需水量其次，占31．37％，人畜生活需水量最少，仅为0．52％。以小流域降水资源作为水资源的评估基础，当降雨设计频率分别为50％，
高鹏, 刘刚, 柳京安, 刘作新
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Shuitu Baochi Xuebao, 2003 利用云贵高原区龙川江上游8条典型小流域水库泥沙淤积资料和小河口水文站输沙量资料,分析建立小流域输沙模数与流域面积的关系,依此求算出龙川江上游小流域(流域面积10.8～216.8km2)泥沙输移比变化于0.42～0.80之间,小河口水文站泥沙输移比计算值为0.26。
文安邦 张信宝 王玉宽 贺廷荣 王建文
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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
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Shuitu Baochi Xuebao, 2004 采用原状土冲刷法,对小江流域土壤抗冲性进行测试研究,结果表明:小江流域水稻土的抗冲性最大,棕壤其次,红壤、紫色土和褐红壤抗冲性最小;小江流域草地的抗冲性最大,耕地和灌丛地其次,裸坡最小;小江流域土壤的抗冲性大小与土壤中 ...
邹翔 崔鹏 陈杰 王道杰
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Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Nickel‐based materials are highly remarkable as promising transition metal catalysts for the electrochemical hydrogen evolution reaction (HER) in alkaline electrolytes. However, their electrochemical performance is limited by an unfavorable d‐band energy (Ed) level. Herein, we showcase an effective lattice‐strain strategy to modulate the Ed of
Shengjue Deng +10 more
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Engineering of the catalyst interface and modulation of transition–metal d–band play critical roles in the electrocatalytic hydrogen evolution reaction (HER). Herein, a synthetic strategy is developed to fabricate nitrogen‐doped carbon nanotubes (N–CNTs)–supported Ni3Se4–CeO2 heterojunction catalysts through a facile chemical vapor deposition (
Zhiqiang Sun +10 more
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应用USLE模型与地理信息系统IDRISI预测小流域土壤侵蚀量的研究
Shuitu Baochi Xuebao, 2000 依据实地调查资料，建立了典型小流域地理数据库，应用径流小区观测结果，确定了定量计算通用土壤流失方程因子指标方法，在地理信息系统ＩＤＲＩＳＩ支持下，根据ＵＳＬＥ土壤侵蚀预测模型对数据库实施运算操作，预测了小流域土壤侵蚀量。结果表明，占流域面积６７％的区域土壤侵蚀微弱或轻度，这一区域对流域土壤侵蚀量的贡献率仅为３％，而流域８０％的泥沙来自于占流域面积仅２０％的极强度和剧烈侵蚀区域。
蔡崇法 丁树文
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Atomically Thin Sn:GaN‐GaN Homojunction for High‐Sensitivity β‐Ray Detection
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Gallium nitride (GaN), a third‐generation wide‐bandgap semiconductor renowned for its superior radiation tolerance, holds promise for advanced β‐ray detection. Herein, a scalable liquid metal‐assisted in situ synthesis method is presented to fabricate Sn‐doped GaN homojunctions via gallium oxide printing followed by ammonolysis, enabling ...
Weiqing Liu +8 more
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Low‐temperature lithium‐metal batteries (LT‐LMBs) are increasingly pursued for higher energy density and extended cycle life, yet suffer from severely depressed interfacial Li+ desolvation/diffusion kinetics due to the enlarged solvation structures as well as organic electrolyte solidification, ultimately inducing much higher barriers to ...
Shikai Yin +14 more
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Biodiversity‐driven spatial conservation planning to delineate temporally stable regions
Conservation Biology, Volume 40, Issue 3, June 2026.Abstract The accelerating loss of biodiversity underscores the critical need for effective conservation strategies, particularly in the face of climate change and anthropogenic pressures. We devised a conservation planning framework that adopts a temporal stacking approach to species distribution models and landscape connectivity analyses. These models
Mattia Iannella +5 more
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