Results 31 to 40 of about 2,083 (101)
Applying Bergmann's Rule to Species Conservation Planning 贝格曼法则在物种保护规划中的应用
Integrative Conservation, Volume 4, Issue 2, Page 120-125, June 2025.Although Bergman's rule has extensively been studied, its implications in species conservation have not been clear, especially in the context of climate change (global warming). Here, we discuss the potential applications of the “rule” based on IUCN's (2022) Red List and suggest species' body size to be an important ecological indicator in future long ...
Qinfeng Guo +4 more
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Integrative Conservation, Volume 3, Issue 4, Page 294-311, December 2024.Freshwater biodiversity in China is threatened by multiple anthropogenic factors, and while there are some reasons to suppose it may be possible to bend the curve of biodiversity loss, the variety of threats and their likely interactions with ongoing climate change provide little basis for optimism. For example, the historic overexploitation of Yangtze
David Dudgeon
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Guanotrophy: Waterbirds Pay for Using Resources at Their Wintering Habitats 鸟粪营养学 ：水鸟在越冬栖息地使用资源后留下回报
Integrative Conservation, Volume 3, Issue 4, Page 382-397, December 2024.Significant waterbird colonisation was recorded in the wintering period (October through March in 2018–2019 and 2019–2020) in wetlands on Central Asian and East Australasian Flyways. Different limnochemical conditions influenced nitrate and phosphate concentrations.
Arkajyoti Mukherjee +3 more
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Multiple‐stressor effects on leaf litter decomposition in freshwater ecosystems: A meta‐analysis
Functional Ecology, Volume 38, Issue 7, Page 1523-1536, July 2024.Read the free Plain Language Summary for this article on the Journal blog. Abstract Recent years have witnessed a surge in research on the effects of multiple stressors in freshwater ecosystems. While studies have increased, the synthesis of their findings into a broader understanding of ecosystem‐level effects remains an ongoing endeavour. Leaf litter
Graciela Medina Madariaga +6 more
wiley +1 more source
Global status, impacts, and management of rocky temperate mesophotic ecosystems
Conservation Biology, Volume 38, Issue 1, February 2024.Abstract The ecology and function of rocky temperate mesophotic ecosystems (TMEs) remain poorly understood globally despite their widespread distribution. They typically occur at 20–150 m (the limit of photosynthesis), and on rocky substratum they support rich benthic communities and mobile fauna.
James J. Bell +5 more
wiley +1 more source
Shuitu Baochi Xuebao, 2021 以同在滇中地区磷素差异较大的富磷区与贫磷区的云南松林群落及其土壤为研究对象，采用Sui修正后的Hedley磷素分级，研究了土壤磷素的有效磷特征和土壤其他养分因子，分析了2类云南松群落的结构及其差异。结果表明，富磷区土壤全磷含量显著高于贫磷区，虽然两地活性磷（H2O—Pi、NaHCO3—Pi和NaHCO3—Po）含量都低于10%，但富磷区活性磷含量显著高于贫磷区，贫磷区有机磷含量高于无机磷含量，富磷区却相反；富磷区其他土壤养分如全氮、有机碳含量也显著高于贫磷区。富磷区云南松群落林木密度、Shannon ...
成祥 +7 more
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Shuitu Baochi Xuebao, 2007 采用室内培养技术研究了向日葵幼苗对Cu、Pb的富集能力与耐受性。结果表明:向日葵幼苗对Pb、Cu具有很强的富集能力,根是主要的富集器官,Cu由根向茎叶运输能力大于Pb。低浓度Pb、Cu刺激了幼苗营养生长;在高浓度条件下,除Pb组外,其它处理均抑制向日葵幼苗的营养生长。Pb、Cu抑制了幼苗根系活力,刺激了幼苗茎叶脯氨酸的生成,改变幼苗茎叶、根蛋白质含量分配水平。Pb与Cu交互作用对幼苗营养生长和生理生化反应具有协同作用。向日葵属于重金属富集植物,对Pb具有很强的耐受性,可以用于修复被Pb污染的土壤。
郭平 +4 more
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Shuitu Baochi Xuebao, 2003 选择洞庭湖退耕还湖区汉寿县青山湖垸不同生境条件区及周边地区对照点,3年水质监测表明,围垦区在退耕还湖后的前1～2年,水体中氮、磷营养元素,化学耗氧量,生化耗氧量,大肠菌群等项水质指标比本区河流、湖泊天然水体含量高,水体有轻度富营养化现象,但较目前堤垸区地面水水质要好,且其富营养化程度依老宅基区、老堤垸区、老稻田区、老林地草滩区和老渔塘区而依次减弱。随着退耕还湖后多次淹水、退水的进行,退耕还湖区各项水质指标正逐步接近天然水体,这标志着洞庭湖退耕还湖区湿地生态系统的恢复、重建正在缓慢进行。
吴甫成 邓学建 等
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Shuitu Baochi Xuebao, 2007 为了探讨不同肥力土壤团聚体中主要营养元素含量的变化情况,以我国东部3种地带性土壤(黑土、棕壤和红壤)为研究对象,分别测定了其全量营养元素的含量,并进行了比较分析.结果发现,各营养元素在不同类型土壤中呈地带性分布.由北向南,有机碳、全氮、全磷、全钾、全钙、全镁的含量呈逐渐降低的趋势,全铁、全铝的变化趋势则相反;施用有机肥能明显增加土壤中各种营养元素的含量.无论哪个粒级的微团聚体,有机碳、全氮含量呈北高南低的趋势;钾素的变化呈北高南低分布.除了硅素外,其余营养元素在＜2 μm粒级内富集 ...
汪景宽, 于树, 李丛, 王国风
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Shuitu Baochi Xuebao, 2019 为揭示不同垄沟坡度对径流中溶解态氮、磷流失的影响，采用人工模拟降雨试验，设置4个垄沟坡度处理（0°，9°，18°和27°），研究了不同垄沟坡度对径流中速效磷（PO43--P）、硝态氮（NO3--N）和铵态氮（NH4+-N）浓度和流失量的影响；并利用Inorganic-N/PO43--P、NO3--N/PO43--P和NH4+-N/PO43--P 3种氮磷比，评价不同处理的富营养化风险。结果表明：（1）在降雨过程中，4个垄沟坡度处理径流中PO43--P、NO3--N和NH4+-N浓度随时间均呈锯齿状变化 ...
扈晓碟 +5 more
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