Results 31 to 40 of about 10,611 (114)
Functional Ecology, Volume 39, Issue 10, Page 2772-2789, October 2025.Read the free Plain Language Summary for this article on the Journal blog. Abstract The soil microbial community plays an important role in maintaining the functional balance of grassland ecosystems. However, it is unclear how soil microbial diversity and complexity change in the desert steppe under different grazing times and what ecosystem factors ...
Zhuo Liu +7 more
wiley +1 more source
Dianci bileiqi, 2019 为了解决配电网中性点接地方式具有的人身安全、接地选线及供电可靠性问题,开发了基于故障相智能接地处理方式的配电网多功能安全接地处理装置,该装置采用了铁磁谐振动态预警判断技术、分区式故障相选相技术、故障性质的智能判断与处理技术和自适应接地选线技术解决了配电网铁磁谐振动态预警、判断与处理,解决了过渡电阻接地时的精准选相,解决了故障性质的智能判断与处理,能使瞬时性故障快速恢复,使永久性故障选线精确率提高到百分百,能处理0-2 000 A的故障电流。装置经在电网的试验及运行效果证明 ...
李政洋 +4 more
doaj
Shuitu Baochi Xuebao, 2006 乌兰布和沙漠东北部的不同地类导致该地区天然植被生境差异，进而形成了有不同顶级植物组成的天然植物群落。本文在不同时期卫星影像解译的土地利用类型基础上，分析了乌兰布和沙漠东北部天然植被生境动态变化。结果表明，该地区固定半固定沙地面积均有所减少，流动沙地扩大，同时盐碱地大大萎缩。在此基础上，用间接推求方法估算了该地区天然植被的生态用水量，其中柠条群落的生态用水量占整个研究区域生态用水总量的50．01％，油蒿＋白刺＋沙冬青群落占41．03％，梭梭群落占7．38％，盐碱地柽柳群落占1．58％。
李清河 +3 more
doaj +2 more sources
Improvements for better scaling of locally managed marine areas
Conservation Biology, Volume 39, Issue 5, October 2025.Abstract To protect and restore ecosystems at the speed and scale required to meet current environmental challenges, a greater understanding of how conservation initiatives spread from existing to new adopters is required. According to the diffusion of innovation theory, positive adopter‐to‐peer communication is a powerful driver of innovation spread ...
Emily Lewis‐Brown +6 more
wiley +1 more source
Integrative Conservation, Volume 4, Issue 3, Page 476-490, September 2025.The leaf functional traits of angiosperms and gymnosperms in mountain ecosystems significantly influence phyllosphere fungal diversity. These traits are critical for understanding fungal stress resistance and elevational adaptation, which aids in predicting plant responses to climate change.
Xiaocheng Yu +7 more
wiley +1 more source
野生动物学报, 2021 动物园有限的面积与园中野生动物对环境条件的需求之间往往存在巨大的差距。应用分配通道提高动物园场地利用率可以缓解这一矛盾，并最终有利于提高动物福利。分配通道的应用可以划分为4个阶段，其发展趋势是将动物园中的所有展区联结成网络，从而使每种动物的生活和展示空间逐步接近动物生态领地模型，使动物园中有限的场地条件能够满足圈养野生动物的环境需求。
张恩权
doaj
Integrative Conservation, Volume 4, Issue 3, Page 393-404, September 2025.We studied the challenges in human‐wildlife coexistence in Abohar wildlife sanctuary and the surrounding landscape in Punjab, India. We found that the local people's unique intrinsic motivation for conservation and the traditional approaches to conservation are no longer sufficient.
Geethanjali Mariaselvam +5 more
wiley +1 more source
Gaoya dianqi, 2018 通过分析现有经消弧线圈接地、经小电阻接地及消弧线圈与小电阻合一的配电网接地方式存在的弊端,提出以弧光过电压为判据,采用形态滤波器提取零序电压标幺值,以零序电压为基准适时投入消弧线圈和可控小电阻的自适应接地系统。同时对该接地系统下的保护配置进行完善,配置零序过流保护,可有效避免现有接地系统存在的问题。该自适应接地系统经过试验验证,可实现配电线路瞬时性单相接地故障自动熄弧消除故障,永久性接地故障保护动作跳闸隔离故障,提高了供电可靠性,保证了设备安全。
任明辉, 胡建利, 陈建军
doaj
Integrative Conservation, Volume 4, Issue 3, Page 381-392, September 2025.Grazing bans improved vegetation but increased predator activity, reducing pheasant nesting success in Giant Panda National Park—highlighting trade‐offs in conservation policy. ABSTRACT Grazing has a profound impact on forest ecosystems and biodiversity.
Yifei Zhang +7 more
wiley +1 more source
Gaoya dianqi, 2019 因接地系统缺陷引发的高压电缆故障时有发生,接地电流在线监测技术是进行接地系统缺陷检测的一种有效手段,但该技术在工程应用中仍面临许多问题,其有效性及精度尚需通过仿真模型进行试验校验。文中利用高压电缆状态仿真试验平台,构建了110 kV电缆模拟试验回路,通过升压和升流系统模拟实际运行工况,对高压电缆接地电流在线监测装置进行了功能校验分析。在不同电缆运行工况下,对在线监测装置传感器的发热、振动和噪声状态进行了实测和分析。当电缆本体和接地缆流经异常电流时,校验了在线监测装置的运行情况。实验结果表明 ...
曹俊平 +5 more
doaj