Results 41 to 50 of about 1,298,578 (151)
Shuitu Baochi Xuebao, 2023 探究草地植被格局与土壤水源涵养功能的关系,对于评价和有效利用土壤及草地植被资源起着重要的作用。以黄河源区的高寒草地生态系统为研究对象,运用MODIS数据构建土壤水源涵养功能模型并探究其时空变化特征,明确草地植被的时空变化规律,以耦合协调度理论为基础探讨二者耦合关系的季节性变化和空间分布特征。结果表明:(1)2000-2021年土壤水源涵养功能指数和综合植被指数在各个季节上均呈增加趋势,22年的季平均值表现为夏季和秋季高于春季和冬季;(2)2000-2021年各个季节土壤水源涵养功能-植被(SWCF ...
张晓宁 +5 more
doaj
Integrative Conservation, Volume 5, Issue 1, Page 86-103, March 2026.Urbanization may alter bird foraging. Austral Parakeets (Enicognathus ferrugineus) in Patagonia rely on introduced plants in urban areas, especially in winter, despite preferring natives in the wild. This seasonal reliance on introduced species highlights urbanization trade‐offs and underscores the need to manage green areas with native plants to ...
Rocío Bahía +2 more
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Integrative Conservation, Volume 5, Issue 1, Page 74-85, March 2026.This study investigates distribution patterns of Galliforms in the Indian Himalayas, focusing on factors influencing their occurrence, regions of high diversity and endemism, and their overlap with protected areas. Our study highlights the need for assemblage‐level conservation strategies in high Himalaya which primarily relies on snow leopard‐focused ...
Manvi Sharma +5 more
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Ecology and Evolution, Volume 15, Issue 10, October 2025.This paper proposes a ‘relaxed’ point‐count survey method to enhance accessibility and expand geographic coverage by easing these constraints. Surveys can be conducted in diverse locations, including urban areas and travel routes, within flexible timeframes (e.g., 6 h after sunrise or during the evening) and with adaptable spacing between survey points,
Masumi Hisano
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Assessing the Corn Belt as an anthropogenic barrier to migrating landbirds in the United States
Conservation Biology, Volume 39, Issue 5, October 2025.Abstract Migrating landbirds adjust their flight and stopover behaviors to efficiently cross inhospitable geographies, such as the Gulf of Mexico and the Sahara Desert. In addition to these natural barriers, birds may increasingly encounter anthropogenic barriers created by large‐scale changes in land use. One such barrier could be the Corn Belt in the
Fengyi Guo +7 more
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四川大学学报. 自然科学版, 1985 成都市郊鸟类的季节变动曲线近似(?)形。曲线表示的自然现象规律性地分别出现在峨媚山及我国东部的一定季节。比较分析有关区系资料,推测我国东部亚热带和暖温带的鸟类季节变动曲线分别为(?)和(?)形或稍有改变,更南和更北的变化是曲线两峯逐渐消失。
张俊范, 吴大均
doaj
On the normative roles of biodiversity and naturalness in conservation
Conservation Biology, Volume 39, Issue 5, October 2025.Abstract Nature is an opaque concept. Consequently, the term biodiversity conservation has replaced nature conservation in most conservation contexts. We review the conceptual indeterminacies that plague the terms nature and natural but then show that comparable difficulties plague biodiversity.
David Saltz, Shlomo Cohen
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, 2013 2009年4～11月,选择位于黄河口滨岸中潮滩和低潮滩上的翅碱蓬湿地为研究对象,对比研究了湿地土壤氮的季节变化特征。结果表明:两种湿地不同土层的NO3--N、NH4+-N和TN含量均具有明显的季节变化特征,但不同类型湿地之间差异较大。二者NO3--N、NH4+-N含量的季节差异主要与其所受潮汐影响程度及其引起的无机氮物理运移和对NH4+-N吸附能力的差异有关。二者在7月较低的NO3--N含量主要与植物对土壤中有效氮的大量吸收与利用有关,而8月较高的NO3--N、NH4 ...
牟晓杰, 孙志高, 刘兴土
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Shuitu Baochi Xuebao, 2011 为探讨科尔沁沙地小叶锦鸡儿固沙群落土壤微生物生物量和酶活性的季节动态规律,选取6,11,24年生人工群落和天然群落为对象,研究了不同土层深度微生物生物量(C、N、P)和脲酶、蛋白酶、蔗糖酶、磷酸单酯酶、脱氢酶和多酚氧化酶的活性随季节的变化特征。土壤按5层取样:0-10cm,10-20cm,20-30cm,30-40cm,40-50cm。结果表明,6～24年生小叶锦鸡人工固沙群落及天然群落土壤微生物生物量表现出明显的季节性变化,微生物生物量C和N为夏季>秋季>春季;微生物生物量P为夏季>秋季 ...
曹成有 +3 more
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Integrative Conservation, Volume 4, Issue 3, Page 430-441, September 2025.Our study identifies southern China, including mountainous regions and islands, as key areas rich in phylogenetic diversity, and phylogenetic endemism of lizards that are currently under‐protected. Current protected areas however do not adequately cover regions that are critical for preserving the evolutionary history of lizards.
Tao Liang (梁涛) +8 more
wiley +1 more source