Results 31 to 40 of about 2,325 (159)
Functional Ecology, Volume 39, Issue 9, Page 2327-2341, September 2025.Read the free Plain Language Summary for this article on the Journal blog. Abstract While elevational patterns of soil bacterial and fungal communities in mountain ecosystems have been well documented, the assembly processes of soil archaeal and protistan communities, and their linkage with ecosystem multifunctionality (EMF), remain poorly understood ...
Bao‐Min Yao +14 more
wiley +1 more source
Dizhen xuebao从1996年丽江MS7.0地震发生后至2023年8月，云南地区M≥6.7和M≥7.0地震出现了长达27.55 a的超长时间平静现象。本文从更大时空尺度上对该平静异常现象及其与青藏高原和川滇地块的强震活动之间的关系进行了分析和总结，并讨论了云南地区未来地震趋势。结果表明，1887年以来，云南地区5次M≥7.0地震平静期内其周边地震活动环境有很大差异性：第 Ⅰ ，第 Ⅱ 和第 Ⅴ平静期出现在青藏高原M≥7.0地震活跃背景下（即云南地区平静，但青藏高原活跃），第 Ⅲ和第Ⅳ平静期出现在青藏高原M≥7 ...
Youjin Su +4 more
doaj +1 more source
Structure Genetic Mechanism and Provenance Analysis of Badain Jaran Desert, Northwest China [PDF]
, 2015 由于长期构造地质作用，我国西北部地区变得气候持续干旱，生态极为脆弱。生态系统的不断恶化，加上人为因素的影响，塔克拉玛干、腾格里、毛乌素、巴丹吉林沙漠等沙漠化形势越来越严峻，尤其每年冬春季节将频发沙尘暴活动，严重影响了人民群众的正常生活。而巴丹吉林沙漠正好地处我国东、西部沙区之间的过渡敏感地带，以发育有复杂高大沙山，分布着星罗棋布的湖泊而闻名于世，具有较高的学术研究价值，一直以来倍受中外学者的高度重视和关注。 迄今为止，学术研究主要关注点在沙漠物源、成因机理、侵蚀过程和治理方法等方面 ...
韩超
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Multiple global change factors alter the scaling of nitrogen to phosphorus in alpine plants
Functional Ecology, Volume 39, Issue 8, Page 2044-2055, August 2025.Read the free Plain Language Summary for this article on the Journal blog. Abstract The stoichiometry and allometry of nitrogen (N) and phosphorus (P) reflect nutrient absorption and dynamic allocation by plants, and can be regulated by global change factors (e.g. nitrogen enrichment, climate warming and altered precipitation). Yet, how multiple global
Jiapu Li +10 more
wiley +1 more source
People and Nature, Volume 6, Issue 4, Page 1655-1667, August 2024.Abstract Ecosystem restoration practices are gaining prominence in coping with the crisis of ecosystem degradation. To improve the long‐term effectiveness of restoration activities, community engagement in restoration projects needs to be strengthened.
Huxuan Dai +6 more
wiley +1 more source
Two granitic plutions in middle Western Kunlun Belt: their ages and possible sources [PDF]
, 1999 对西昆仑中带２个重要岩体进行了年代学和同位素示踪方面的研究。单颗粒锆石U-Pb 测年结果表明，库地北岩体（４０４Ｍａ）形成于加里东末期的一次岩浆活动；而阿卡阿孜山岩体中二长花岗岩２１５ Ｍａ的年龄则表明原被整个划入海西期的岩体实际上至少包括一部分印支期的岩浆活动。Sｍ／Ｎｄ同位素数据表明这２个花岗岩的源区并不均一，有地壳物质的加入且不排除壳幔混合成因的可能性 ...
Li, JL, Sun, M, Yuan, C
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People and Nature, Volume 6, Issue 2, Page 573-585, April 2024.Abstract Tibetan Buddhist monasteries are widely distributed throughout the Qinghai–Tibet Plateau and are significant locations for human–wildlife coexistence. Given the significance of their historical and contemporary social influence, it is crucial to ascertain whether there exists a non‐negligible correlation between these monasteries and their ...
Gesang Wangjie +6 more
wiley +1 more source
贝叶斯联合模型与中国洞穴鱼类分化时间的估算(鲤科:金线鲃属) [PDF]
, 2008 金线鲃属分布于中国云贵高原及周边地区,包括10多种适应于洞穴生活、具有不同程度眼睛和色素退化的典型洞穴鱼类.迄今为止,金线鲃属的系统发育关系还存在很大争议.我们获得了34种金线鲃属鱼类及外类群的细胞色素b和ND4基因序列,用贝叶斯联合模型分析数据,重建了金线鲃属的系统发育关系;并用松散分子钟估算了本属及内部分支的起源时间.金线鲃属的单系性得到强烈的支持,本属可分为6个分支.此外,本研究结果还支持洞穴物种的多系起源假说以及季氏金线鲃(Sinocyclocheilus jii)的基部位置 ...
何舜平 +4 more
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野生动物学报, 2004 藏羚羊是青藏高原的特有物种,栖息于海拔4000-5500米间的高寒草甸、高寒荒漠草原及高寒荒漠等环境中。藏羚羊的绒毛轻柔无比,用藏羚羊绒制成的披肩叫做“沙图什”（Shahtoosh ...
孙忻, 王丽
doaj
萨拉乌苏河流域末次间冰阶气候 - 以米浪沟湾剖面为例 [PDF]
, 2007 米浪沟湾剖面末次间冰阶层序粒度和化学元素波动韵律与由古流动砂丘砂和上覆河湖相或古土壤构成的沉积旋回颇为一致。古流动砂丘砂犹如现代流动砂丘砂, 是东亚冬季风主导下干冷气候的产物; 河湖相和古土壤颗粒细化, 化学、生物等地球风化程度增强, 含较多喜暖的软体动物化石, 指示其偏南夏季风主导下的温暖湿润气候。据此, 末次间冰阶萨拉乌苏河流域至少经历了10次温湿(W事件)和9次冷干(C事件)气候波动, 且可划分为MIS3e(58.85~48.98 ka BP)、MIS3d(48.98~39.55 ka BP ...
Chen, D +7 more
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