Results 31 to 40 of about 7,099 (162)
云南沾益中度退化天坑草地植物群落水平空间分布特征 [PDF]
, 2018 规模最为宏大的地表负地形——喀斯特天坑不仅是世界罕见的地质奇观,圈闭化地形而形成的独特生境更是探索植物物种多样性及其空间分布特征最为理想的地域。以云南沾益天坑群中的中度退化天坑——\"巴家陷塘\"坑底草地植物群落为研究对象,通过α多样性指数与β相似性系数的应用,对\"巴家陷塘\"中度退化天坑坑底草地植物群落物种多样性的水平空间分布特征展开探讨,并对其近邻退化漏斗和\"大毛寺\"原生天坑坑外草地植物群落的相似性进行对比分析,研究结果发现:(1 ...
江聪 +6 more
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Relationship between riparian plant diversity and soil factors in the middle and lower reaches of the Yellow River [PDF]
[Objective] The relationship between species diversity and soil factors in riparian zone is important to maintain the stability of riparian ecosystems. The purpose of the study is to reveal the relationship between species diversity and soil factors in
LI Ya +3 more
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Geographic risks to functional groups of mammals and birds from habitat loss in Mexico
Conservation Biology, EarlyView.Abstract There is a need to quantify the impact of habitat loss due to anthropogenic factors on different aspects of biodiversity, such as functional trait diversity represented by functional groups (FGs). We developed a metric to assess the weighted risk of loss of habitat for 33 FGs of mammals and 36 FGs of birds in Mexico based on potential ...
Fernando Mayani‐Parás +4 more
wiley +1 more source
Shuitu Baochi Xuebao, 2004 通过分析克拉玛依农业开发区水土性状、荒漠植被演替规律和群落多样性,了解到区内植物的生长更新主要靠大气降水来维系,而土壤理化指标中的有机质、全N和全K含量增加是植物群落发展多样性的胁迫因素。与之相反,一定限度下的较高pH和粒度值,则可促进植物多样性水平的提高。分析结果还表明,土壤的全盐、全P和水分是影响植物多样性的潜在因素。
钱亦兵 周华荣 徐曼 蒋进 王雪芹 李东梅 赵从举
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野生动物学报, 2021 2019年4—10月，利用访问调查法和样方调查法对海南长臂猿（Nomascus hainanus）食源植物展开调查，确定了海南长臂猿食源植物组成及其季节性变化。研究表明，海南长臂猿采食的食源植物有166种，隶属于52科99属。在雨季（5—10月），海南长臂猿食源植物有47科88属148种。在旱季（11月至翌年4月），海南长臂猿食源植物有39科61属90种。在雨季，海南长臂猿可采食成熟果实的植物种类较多，相对更容易获得食物。而在旱季能够取食果实的植物种类减少，结果量较低、且分布不集中 ...
唐玮璐 1, 2, 3 毕玉 1, 2 金崑 1
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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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Underrepresentation of bats in Africa's protected areas
Conservation Biology, Volume 40, Issue 1, February 2026.Abstract Biodiversity is severely threatened globally, with habitat loss and other human pressures accelerating species extinctions. Protected areas (PAs) are a critical conservation tool; however, their effectiveness in safeguarding many taxa, such as bats, remains unclear.
Cecilia Montauban +9 more
wiley +1 more source
Relationship Between Community Characteristics and Species Diversity of Carex Duriuscula and Soil Physiochemical Properties in Hulunbuir Steppe [PDF]
, 2023 [Objective] The relationships between community characteristics, species diversity, and soil physical and chemical properties of Carex duriuscula in Hulunbeier steppe were analyzed in order to provide a scientific reference for the protection and ...
Cui Shengchao +5 more
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New Phytologist, Volume 249, Issue 2, Page 764-776, January 2026.Summary Fine roots are critical for soil resource uptake, yet how declining plant diversity alters fine root biomass (RB) and traits remains unclear. We tested how plant functional trait dissimilarity in shade tolerance, drought tolerance, growth rate, and nitrogen‐fixation ability drives variation in root attributes.
Sai Peng, Yakun Zhang, Han Y. H. Chen
wiley +1 more source
Shuitu Baochi Xuebao, 2001 用数量分析的方法研究了关帝山庞泉沟主要森林群落华北落叶松林和云杉林及其交错区的植物多样性.结果表明,随海拔高度的变化,群落的植物多样性指数呈降低趋势;Pielou均匀度指数乔木层呈降低趋势,而灌木层和草本层的变化不太明显.群落交错区的植物多样性明显增加.不同的生长型其多样性的变化表现出不同的特征.群落的β多样性表现出比较复杂的变化趋势.随海拔高度的变化其基本可以分为3个区段,在每个区段表现出的不同特征显示了群落及其交错区物种多样性的变化特征.
李毳
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