Results 31 to 40 of about 7,964 (114)
Shuitu Baochi Xuebao, 2017 以黑龙江省东部山地天然次生林为研究对象，采用野外染色示踪法、统计分析相结合的方法，应用Photoshop Cs5，Image pro Plus6.0图像处理软件，分析天然次生林下优先流区和基质流区土壤特性差异。结果表明：黑龙江省东部山地天然次生林土壤优先流现象极为明显，主要以大孔隙流、指流以及管流为主。表层土壤孔隙间的连通性好，水分运动过程变得相对均匀，不易于发生优先流。10—45 cm土层范围内，染色路径不再整体均匀扩散，表现出明显的优先运移特征，产生优先流，并表现出了一定的环绕特性。从土壤表层到底层，
王赵男, 辛 颖, 赵雨森
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Shuitu Baochi Xuebao, 2020 随着覆膜农作的发展，农膜残留日益严峻，严重影响土壤水流运动。为了探索农膜残留对水流运动的影响机制，在河套灌区九庄节水综合试验站，设计3种残膜量，分别为0，300，600 kg/hm2，于成熟期在各试验小区选择典型区域进行20，80 mm水量的染色示踪试验，共6个处理，研究不同残膜量对土壤物理特性的影响，基于染色示踪技术分析不同入渗量和不同残膜量对土壤水流运动的影响，并评价各处理土壤剖面的优先流特征。结果表明：随着残膜量增加，土壤容重、饱和导水率和土壤初始含水率呈下降趋势，而土壤孔隙度呈增大趋势 ...
胡琦 +5 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
wiley +1 more source
Shuitu Baochi Xuebao, 2019 以浑河源头4种类型水源涵养林为研究对象，采用野外染色示踪和室内理化分析等研究方法，研究不同水源涵养林土壤优先流的形态特征与变化规律，揭示浑河源头水源涵养林保护和治理过程中优先流的形成机理及影响因素。结果表明：4个样地土壤优先流的入渗深度范围为30~38 cm，且其深浅与根系的根长密度关系密切；0—10 cm土层的土壤优先流染色面积比依次为82.41%，75.44%，91.03%，79.82%，土壤优先流染色面积比随土层深度的增加而减小，4个样地上层土壤显著大于下层土壤染色面积比 ...
吕刚 +8 more
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Defining and identifying relevant stakeholders to advance effective conservation
Conservation Biology, Volume 40, Issue 3, June 2026.The challenge of defining stakeholders in environmental science and an approach for refining existing definitions. Abstract Stakeholder is a contested term that has spawned a multitude of ad hoc definitions. The ambiguity of these definitions has oftentimes impeded transdisciplinary research in environmental governance and conservation science because ...
Milan Büscher +5 more
wiley +1 more source
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Piezocatalysis has garnered unprecedented research enthusiasm for applications in energy and environmental fields, as it can harvest the tiny vibration energy from the natural environment and convert it into electrical energy to drive catalytic reactions.
Feixue Gao +9 more
wiley +1 more source
Shuitu Baochi Xuebao, 2023 在贡嘎山原始森林不同土壤质地的样地采集制备原状土柱,监测并分析2020年夏季2场暴雨期间入渗出流过程及出流水稳定同位素(δ18O)变化特征。结果表明:(1)海拔2 649 m的富含砾石的粉壤土样地A在8月6日和8月11日次降雨后平均总出流量(分别为4.14,14.61 L)比海拔3 000 m的粉壤土样地B(1.45,11.99 L)大。样地A的出流过程对降雨的响应也更敏感。(2)出流水的同位素变化幅度小于降雨同位素变化幅度,入渗过程中新旧水混合强烈。(3 ...
叶鑫 +5 more
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Social protection in fragile and conflict affected settings: The case of Sudan
International Social Security Review, Volume 79, Issue 2, Page 17-42, April/June 2026.Abstract This article examines Sudan’s state‐led social protection system by conducting a mapping of the country’s main social protection schemes, drawing on legislative documents and secondary reports as well as the 2022 Sudan Labor Market Panel Survey.
Dáire Brady, Zina Nimeh
wiley +1 more source
Shuitu Baochi Xuebao, 2018 以西南岩溶区的典型农地甘蔗地为研究对象，采用野外染色示踪技术，利用形态学解析手段，并结合土壤水分分层评价方法，对粉垄耕作和免耕方式下甘蔗地土壤优先流特征进行研究。结果表明：在相同外部供水条件下，粉垄耕作甘蔗地水分下渗湿润锋迹线较免耕甘蔗地平缓，呈均匀整体形式下渗，平均下渗深度是免耕甘蔗地的0.95倍，其优先流染色形态相对于免耕甘蔗地的枝状分化状态，多以零散团块状分化形式为主；在相同外部条件下，免耕甘蔗地最先发生优先流现象，优先流的发生速度是粉垄耕作甘蔗地的1.45倍，平均优先流比达88.61 ...
陈晓冰 +5 more
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Shuitu Baochi Xuebao, 2020 优先流作为一种土壤水分的快速入渗形式，广泛发生于水稻田内。通过进行野外土壤染色示踪试验，结合形态学图像解析技术，开展秸秆覆盖与非覆盖条件下的广西岩溶区水稻田土壤优先流特征研究。结果表明：在相同的外部供水条件下，秸秆覆盖水稻田土壤染色形态以整体均匀分布形式为主，而非秸秆覆盖水稻田呈明显枝状染色形态分化现象并贯穿整个土壤空间，其平均染色斑块形状系数为13.96，染色形态表现为显著不规则分化状况，且土壤空间中染色水流平均分布密度达0.117，相比秸秆覆盖水稻田更大，呈现染色水流集中分布状态 ...
陈晓冰 +4 more
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