Results 31 to 40 of about 2,328 (164)

Impacts of regreening on soil microbial community and its assembly process in open-pit mining area of the Loess Plateau [PDF]

open access: yes, 2023
Vegetation restoration is an important indicator of ecosystem health in a mining area. Understanding the impact of vegetation restoration on the characteristics and assembly process of soil microbial community is very important to explore the resilience ...
Dong XIAO   +5 more
core   +1 more source

Contribution of microcosm experiments to conservation science

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
Abstract Microcosms, or miniature experimental systems, have been used to develop models and theories in ecology. However, their contribution to conservation science is unclear. We explored the application, design, and impact of microcosms in conservation science from 469 systematically identified articles published from 1986 to 2023.
Eleanor R. Stern   +3 more
wiley   +1 more source

西南喀斯特退化天坑负地形倒石坡的土壤微生物分布特征 [PDF]

open access: yes, 2019
喀斯特退化天坑倒石坡作为一种负地形坡面,在退化天坑植物避难所的物种多样性保护中发挥着重要作用。研究坡面土壤微生物群落功能多样性,有助于阐明土壤微生物群落生态特征和空间分布规律,探索土壤微生物与植物多样性关联,挖掘退化天坑负地形倒石坡的生物多样性宝库价值。研究以云南沾益天坑群中的退化天坑-巴家陷塘为研究对象,运用Biolog微平板技术,分析坡面环境梯度(坑口﹑上坡位﹑中坡位﹑下坡位以及坑底)的土壤微生物群落功能多样性差异。结果显示,坑底土壤微生物群落的功能多样性指数(Shannon指数﹑Simpson指数﹑
江聪   +4 more
core  

铜和镉复合污染对红树林区微生物群落结构和沉积物酶活性的影响 [PDF]

open access: yes, 2018
采用野外样地研究与室内根箱栽培相结合的方法,对漳江口红树林保护区铜、镉污染生境沉积物微生物结构与土壤酶活性进行研究,旨在探讨其对重金属的响应.微生物磷脂脂肪酸数据表明漳江口红树林湿地3种红树植物秋茄(Kandelia obovata)、白骨壤(Avicennia marina)、桐花树(Aegiceras corniculatum)根际土壤微生物群落的多样性与林外光滩区域比较差异有统计学意义 ...
严重玲   +6 more
core   +1 more source

Land tenure contributions to protected area growth under alternative conservation targets in the Australian monsoon tropics

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
Abstract As the global protected area (PA) network expands to meet international targets, it is important to assess whether traditional reliance on public land will suffice for projected PA growth or whether other tenures, such as Indigenous or pastoral lands, may increasingly contribute.
Emmeline Norris   +2 more
wiley   +1 more source

内蒙古胡列也吐湿地春季水鸟群落多样性变化及分析

open access: yes野生动物学报, 2008
作者分别于1998年、2005年和2007年春季采用样线法调查了胡列也吐湿地水鸟的种数和数量,得出这3 a水鸟群落多样性指数分别为3.66、3.85和3.33。研究了其变化并探讨原因,分析认为,因适当的补水机制导致2005年群落多样性和均匀度最高,湿地鸟类群落变丰富。2007年补水水位过深导致该生境内鸟类群落多样性下降。
陈亮, 刘松涛
doaj  

Community feature and species diversity of Acacia mearnsii communities in Wenzhou(外来种黑荆树的群落特征及其对物种多样性的影响)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2010
以温州地区黑荆树(Acacia mearnsii)入侵群落为对象,采用样方法对10个样地进行了群落学调查,研究其群落的种类组成、区系特点、数量特征和物种多样性,探讨了黑荆树对群落物种多样性的影响.结果表明:①群落中共出现了225种维管束植物,分属于77科162属;②在种子植物属的分布区类型上,属于热带类型的有74属,占总属数的51.10%;温带类型50属,占总属数的34.48%;③群落可分为3种类型,其成层现象不明显,上木层中以黑荆树的优势度最大;下木层的物种丰富,各样地黑荆树的重要值有较大差异 ...
KEQian-qian(柯倩倩)   +5 more
doaj   +1 more source

Study on Change Law of Species Richness under Different Scales in Subtropical Evergreen Broad-leaved Forest [PDF]

open access: yes, 2008
植物群落多样性主要指植物群落在组成、结构、功能和动态方面的多样化程度。从物种组成方面研究群落的组织水平或多样化程度是群落多样性最基础、最重要的研究内容。本文通过对不同面积的取样调查,详细、系统的研究了福建南靖南亚热带雨林与宁化牙梳山中亚热带常绿阔叶林群落物种多样性及其多样性在不同尺度下的变化规律。主要结论如下:(1)南靖南亚热带雨林样地中有维管束植物65科,109属,180种。其中蕨类植物14科,17属,23种;裸子植物2科,2属,2种;被子植物49科,90属,155种;双子叶植物39科,76属 ...
关少华
core  

Importance and spatial patterns of invisible fisheries in Amazonian clear‐water rivers as revealed by fisher knowledge and collaboration

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
The graphical abstract highlights the research collaboration with fishers through interviews to record fishers' knowledge and participatory monitoring, to provide data on small‐scale fisheries in three clear water rivers (Trombetas, Tapajos and Tocantins).
Renato A. M. Silvano   +10 more
wiley   +1 more source

哈尔滨市城市化建设对鸟类群落的影响

open access: yes野生动物学报, 2015
近年来,城市化对鸟类的影响受到生态学家的广泛关注。于2014年3~5月对哈尔滨市区7块城市绿地中鸟类的分布和数量进行了调查,同时选取4个城市化指标以确定影响哈尔滨市区鸟类群落的主要城市化因子,并进一步分析哈尔滨城市化与鸟类群落的关系。调查共记录到鸟类121种隶属于14目38科。在7个样地中,鸟类群落多样性指数显示为:H群力湿地公园>H植物园>H太阳岛>H东北林业大学林场>H兆麟公园>H四季上东小区>H儿童公园; 均匀性指数E群力湿地公园>E植物园>E东北林业大学林场>E太阳岛>E四季上东小区>E兆麟公园>
王 舒 童玉平 王志洁 姚依晨 刘力榕 李 枫
doaj  

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