Results 21 to 30 of about 2,325 (159)
Zhejiang Daxue xuebao. Lixue ban, 2017 利用1981~2010年共30 a的美国国家环境预报中心(NCEP)再分析格点资料，对青藏高原及其周边温度的季节变化及可能机理进行了研究.发现：地表24 ℃等温线2~3月和11月的南北跳动可能是太阳辐射和季风环流共同作用的结果；200 hPa温度的季节变化早于地面和500 hPa，其原因可能与平流层爆发性增温造成的能量下传有关；青藏高原的低温与低的大气逆辐射密切相关.该结果可为进一步研究青藏高原气候变化及其规律提供参考.
TIANRongxiang(田荣湘) +4 more
doaj +1 more source
Integrative Conservation, Volume 4, Issue 3, Page 287-301, September 2025.Qilianshan National Park covers approximately 40% of core snow leopard habitat patches and 50% of movement corridors between patches. Including more of these important areas within the park boundaries should be considered, as the Qilianshan National Park sits at a pivotal juncture between critical snow leopard habitat in China and Mongolia, and may ...
Aliana Norris +6 more
wiley +1 more source
Shuitu Baochi Xuebao, 2004 青藏高原的自然地理环境十分独特却也非常脆弱，水土流失的潜在危害性大。在全球变化和西部大开发的背景下，研究青藏高原水土流失规律具有重要意义。从自然地理条件出发，总结了青藏高原水土流失具有侵蚀类型多样，区域分异明显，人为作用较弱但潜在危害性大等特点。通过分析青藏高原河流泥沙资料，对土壤侵蚀强度的区域分异和水土流失的年内变化进行了初步研究。可以看出区内输沙模数的区域差异较大，输沙模数的大小主要决定于降雨条件和地表覆盖(包括地表物质组成和植被覆盖)。输沙模数的分布也一定程度上反映了土壤侵蚀强度的区域差异 ...
罗利芳 张科利 孔亚平 陈济丁
doaj +2 more sources
, 2007 采用多种测试方法分析了长江主要支流和干流的悬浮物和细粒河漫滩沉积物的Sr-Nd 同位素组成, 进而讨论其对河流沉积物物源的示踪意义. 悬浮物从上游到下游「Epsilon」Nd(0)逐渐减小, 上游平均为−10.8, 中下游为−12.3; 87Sr/86Sr 逐渐增大, 上游和中下游分别为0.721899 和0.725826. 这一变化规律反映了长江水系不同流域的源岩类型、化学组成特征和风化作用强弱等多因素的制 约.
Jiang, S +5 more
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Integrative Conservation, Volume 4, Issue 3, Page 277-286, September 2025.This study provides an innovation to address the challenge in accessibility to samples and genetic markers in Snow leopard conservation genetic studies. We performed next‐generation sequencing (NGS) on 19 fecal samples obtained from the eastern Qinghai‐Tibet Plateau, and successfully assembled 17 complete mitogenome sequences (~16,720 bp) and ...
Chen Cheng +7 more
wiley +1 more source
Dizhen xuebao, 2018 青藏高原作为中国大陆强震活动的主体区，不但构造变形历史复杂，而且高原内部与周边块体之间的重力异常差异也十分显著。本文基于EGM2008重力模型，计算得到了青藏高原及周边地区的区域布格重力异常和艾里均衡重力异常；并依据复合均衡模型原理，以Crust1.0地壳模型中莫霍面的深度为参考，反演得到了地壳剩余密度的分布，该结果适用于研究地壳横向密度的差异；最后，将反演结果与弹性板均衡理论模型反演得到的岩石层有效弹性厚度进行对比，结果表明，青藏高原与周边地块之间的地壳力学特性和平均密度存在显著差异 ...
Shaobo Sun +3 more
doaj +1 more source
Integrative Conservation, Volume 4, Issue 3, Page 362-380, September 2025.Occurrences of dust storms and long‐distance movement of dust across landscapes is constantly increasing in south Asia. This dust is expected to have profound impact on vegetation health and sustainability as dust may contribute to nutrient budgets of the forest ecosystems, while it could impart various stresses to the plants.
Shree P. Pandey +2 more
wiley +1 more source
, 2007 郝景盛在西北考查团中的植物考察和采集,是中国学者在新中国成立之前在青海地区有限的几次之一.当时西方人在青藏高原的考察已经很多.郝景盛后来在德国完成的博士论文《青海植物地理》,以他自己的这次考察为基础,充分利用了西方已有的研究成果,对青海东北部作了植物地理学研究 ...
徐凤先
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Integrative Conservation, Volume 4, Issue 3, Page 302-309, September 2025.We discussed the key assumptions of Distance sampling that were considered hard to meet in mountainous terrains and potential solutions for them. Our survey yielded comparable estimates from distance sampling and double‐observer survey, although the confidence interval from distance sampling was broader.
Lingyun Xiao +4 more
wiley +1 more source
Ecological Function and Environmental Adaptation Mechanisms of Pelagic Archaea in Typical Areas of China Seas [PDF]
, 2010 浮游古菌是海洋微型生物的重要组成之一。在真光层以下的深海大洋，海洋泉古菌MarineGroupI（MGI）类群的生物量可占总原核生物量的20%。最近，环境基因组学研究的突破性进展和海洋泉古菌MGI类群纯培养株系的获得揭示出大部分MGI类群都是氨氧化古菌（Ammonia-OxidizingArchaea,AOA）。由于MGI类群是海洋中数量最为丰富的微型生物之一，其必然在海洋碳、氮循环中起着重要作用，目前AOA已成为环境微生物生态学的研究热点之一 ...
胡安谊
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