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浏览/检索结果: 共8条，第1-8条 帮助

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Understanding the spatial heterogeneity of grazing pressure in the Three-River-Source Region on the Tibetan Plateau 期刊论文  OAI收割
JOURNAL OF GEOGRAPHICAL SCIENCES, 2023, 卷号: 33, 期号: 8, 页码: 1660-1680
作者:  Gu, Changjun;  Liu, Linshan;  Zhang, Yili;  Wei, Bo;  Cui, Bohao
  |  收藏  |  浏览/下载：30/0  |  提交时间：2023/09/07
Spatiotemporal characteristics of discontinuous soil failures on debris flow source slopes 期刊论文  OAI收割
ENGINEERING GEOLOGY, 2021, 卷号: 295, 页码: 13
作者:  Guo, Xiaojun;  Li, Yong;  Cui, Peng;  Yan, Yan;  Wang, Baoliang
  |  收藏  |  浏览/下载：76/0  |  提交时间：2022/01/04
黄海桑沟湾水体及沉积物中微塑料污染特征研究 期刊论文  OAI收割
海洋环境科学, 2019, 卷号: 38, 期号: 2, 页码: 198-204
作者:  熊宽旭;  赵新月;  周倩;  付传城;  涂晨
  |  收藏  |  浏览/下载：40/0  |  提交时间：2020/06/17
桑沟湾  微塑料  潮滩  丰度  空间分布  Sanggou bay  microplastics  tidal flats  abundance  spatial distribution  In recent years,research on microplastics pollution in the marine environment has been increasing,but studies on microplastics in water bodies and sediments of the bay under the influence of high-intensity human activities are still rarely reported. In this study,the pollution characteristics of microplastics in the wayer and sediments of Sanggou bay were investigated in December 2017,after the harvest of large-scale aquaculture,with the aim to study the effects of aquaculture activities and hydrodynamics on pollution characteristics and spatial distribution of microplastics in the bay. The results showed that the types of microplastics in the water and sediments of Sanggou bay were mainly fibers,fragments,films,foams and particles. The microplastic abundances in the water and sediments were 1.8 ~ 31.2 N/L,31.2 ~ 1246.8 N/kg,respectively. The average particle sizes of microplastics in water and sediments were 0.51 0.20 mm and 1.54 1.02 mm,respectively. The results of spatial distribution of microplastics in Sanggou bay showed that the high abundance area mainly appears in the inshore waters,and the abundance of microplastics tends to decrease from the inner areas of estuary to the outshore areas. The heterogeneity of microplastic abundance and spatial distribution in Sanggou bay is mainly affected by human activities such as aquaculture,living and shipping,as well as hydrodynamics. In the future,fine sampling and analysis are needed to fully understand the temporal and spatial distribution of microplastics pollution in the bay areas.  
Ecological consequences of shrub encroachment in the grasslands of northern China 期刊论文  OAI收割
LANDSCAPE ECOLOGY, 2019, 卷号: 34, 期号: 1, 页码: 119-130
作者:  Zhou, Luhong;  Shen, Haihua;  Chen, Leiyi;  Li, He;  Zhang, Pujin
  |  收藏  |  浏览/下载：98/0  |  提交时间：2022/01/06
A general framework of piecewise-polynomial Mumford-Shah model for image segmentation 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF COMPUTER MATHEMATICS, 2017, 卷号: 94, 期号: 10, 页码: 1981-1997
作者:  Chen, Chong;  Leng, Juelin;  Xu, Guoliang
  |  收藏  |  浏览/下载：31/0  |  提交时间：2018/07/30
Selective grazing and seasonal precipitation play key roles in shaping plant community structure of semi-arid grasslands 期刊论文  OAI收割
LANDSCAPE ECOLOGY, 2015, 卷号: 30, 期号: 9, 页码: 1767-1782
作者:  Wan, Hongwei;  Bai, Yongfei;  Hooper, David U.;  Schoenbach, Philipp;  Gierus, Martin
  |  收藏  |  浏览/下载：33/0  |  提交时间：2022/09/13
Confronting international research topics with stakeholders on multifunctional land use: the case of Inner Mongolia, China SCI/SSCI论文  OAI收割
2014
作者:  Zhen L.
收藏  |  浏览/下载：50/0  |  提交时间：2014/12/24
Do clonal growth form and habitat origin affect resource-induced plasticity in Tibetan alpine herbs? SCI/SSCI论文  OAI收割
2007
He Z. S.; He W. M.; Yu F. H.; Shi P. L.; Zhang X. Z.; He Y. T.; Zhong Z. M.; Dong M.
收藏  |  浏览/下载：27/0  |  提交时间：2012/06/08