Results 11 to 20 of about 4,340 (165)
Effects of Grazing Intensity on Features of Vegetation, Soil and Its Erosion in a Steppe Desert [PDF]
, 2022 [Objective] The effects of different grazing intensity on vegetation features, soil physical properties, and soil erosion in a steppe desert were determined in order to provide a scientific basis for soil erosion control, degradation and ecosystem ...
Guo Jianying, Yang Yanan, Yang Zhenqi
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野生动物学报, 2022 利用红外相机监测西藏林芝通麦至色季拉山段猕猴西藏亚种(Macaca mulatta vestita),对红外相机布设点的海拔、坡度、距公路距离、距水源距离、植被类型、郁闭度、优势植物和周围植物丰富度8个生态因子进行相关性和主成分分析,判断藏猕猴的冬季生境选择偏好。结果显示:藏猕猴在冬季主要选择低海拔的区域活动,区域内植物丰富度与藏猕猴平均单张照片出现的只数显著相关(r=0.638); 水因子、地理和隐蔽性3个主成分累计贡献率达76.779%,表明藏猕猴在冬季偏好选择海拔低、坡度大、距公路及水源距离近 ...
丰大林, 于晶晶
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Integrative Conservation, EarlyView.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
StudyontheStructureandCompositionofForestof HuangshanScenicArea [PDF]
, 2016 为了全面了解黄山风景名胜区主要森林群落类型、植物物种多样性及其分布状况，本文选择了天海景区、北海景区、玉屏景区、西海景区、温泉景区、云谷景区、浮溪保护区、西大门等多个区域，通过样线法和典型样地法相结合，在4条样线、62个样地群落调查基础上，结合前人研究成果，分别从植物区系成分、植被类型分类、珍稀濒危植物、群落物种多样性特征、群落的海拔梯度变化等方面进行综合研究。主要研究结果如下： （1）黄山风景名胜区植物种类丰富，区系成分复杂。共有种子植物173科648属1483种（包括变种、亚种和变型），其中 ...
吕霖
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Integrative Conservation, EarlyView.This study examines the Mawphlang Sacred Forest in Meghalaya as a culturally embedded model of community‐led conservation. Drawing on qualitative fieldwork, it highlights how spiritual reverence, sacred taboos, and ancestral authority shape ecological stewardship, complementing formal governance systems.
Mrinal Saikia
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Ecological Studies on Mangrove Molluscs based on Typical Mangrove Communities [PDF]
, 2013 本文基于典型红树植物群落，对中国大陆红树林软体动物的种类和数量组成 进行较长时间、连续和同步的多尺度定量和定性研究。于2007年4月至2010 年1月，选取海南（东寨港、文昌清澜港、万宁石梅湾）、广东（湛江特呈岛、 廉江高桥）、广西（防城港）和福建（九龙江口）13个有代表性的红树植物群落， 开展软体动物季节性定量和定性调查，其中海南东寨港、广东湛江特呈岛和廉江 高桥3个地点（共7个红树植物群落）的调查时间持续3年，其余地点除万宁石 梅湾（持续5个季度）外，均持续9个季度。此外 ...
刘毅
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Rare Metals, EarlyView.ABSTRACT The growing concern over human health issues, driven by increasingly severe electromagnetic pollution from 5G communication, has made the urgent development of high‐performance electromagnetic wave (EMW) absorbing materials. Although carbide‐based materials are promising because of their conductive and polarization losses, existing single ...
Chenqiang Duan +9 more
wiley +1 more source
Distribution Pattern of Taxonomic Diversity of Fish Community in Four Typical Mangrove Areas, China [PDF]
, 2016 红树林区不仅能为许多海生和陆生生物提供栖息地和食物，还是许多鱼类的育幼场和产卵场，因此红树林区生物多样性成为当今生态学研究热点之一。过去对红树林区鱼类群落的研究多采用传统生物多样性指数，然而传统生物多样性指数在实际运用过程具有过多注重物种丰富度、未考虑物种在分类学上的差异等缺陷。分类多样性指数既考虑了群落中物种数量和均匀程度，也考虑了物种分类地位和生态学上的差异，更全面更有说服力。 为全面了解中国红树林区鱼类物种多样性分布格局，本研究选取福建漳江口、广西茅尾海、广西山口、海南东寨港四个典型的红树林区 ...
陈杰
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Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract The nested subset pattern (nestedness) has been widely used to explain species distributions in island and fragmented systems. Mountain sky islands serve as critical natural laboratories for understanding the evolutionary consequences of geographic isolation and climate
Caiwen Zhang +5 more
wiley +1 more source
, 2007 以香溪河干流上5个连续的小水电站为对象,于2005年10月20—22日分别对其浮游藻类和主要理化指标进行研究.结果表明:硅藻占绝对优势(95.54%),其中,线性曲壳藻(Achnanthes linearis)、披针曲壳藻椭圆变种(A.lanceolatavar.elliptica)、扁圆卵形藻(Cocconeisplacentula)为绝对优势种,其平均相对丰富度分别为23.96%、18.62%和12.48%;所有样点的平均藻类密度为6.29×105ind.L-1,最高为1 ...
傅小城 +5 more
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