中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Impact of Farmland Change on Vegetation NPP in the One River and Two Streams Region of Tibet

文献类型:期刊论文

作者Liu, Yunxi1,2; Wang, Xue1,2; Xin, Liangjie1,2; Lu, Yahan1,2
刊名LAND
出版日期2022-12-01
卷号11期号:12页码:14
关键词land use changes vegetation NPP trend analysis Tibetan Plateau
DOI10.3390/land11122223
通讯作者Wang, Xue(wangxue@igsnrr.ac.cn) ; Lu, Yahan(luyh.20b@igsnrr.ac.cn)
英文摘要Studies on the impacts of a particular land use type change are relatively rare, especially in the Tibetan Plateau region (TP). This study focused on the impacts of farmland use change on grain supply and ecosystem stability in the Yarlung Zangbo river and its two tributaries (also known as One River and Two Streams, ORTS), using net primary productivity (NPP), known as the total amount of organic matter left after removal of carbon absorbed from the atmosphere by vegetation through photosynthesis, as a common proxy for farmland productivity and ecosystem stability. The trend analysis method was applied to measure the inter-annual change of NPP, and an ecological impact index was constructed to quantify the impact of farmland use change on the NPP change in the ORTS region. The results showed that: (1) The total area of farmland decreased by 6.09% from 2000 to 2018. Built-up land occupation and ecological restoration were the main reasons for the decrease of farmland area, while there was also new reclaimed farmland, transferred from ecological land. (2) The NPP in the ORTS region was roughly on an increasing trend, while the trends of NPP in different farmland change areas were not the same. Specifically, the NPP of ecological restoration, newly reclaimed farmland, and unchanged farmland areas all showed a significant increasing trend, while the NPP in the area of farmland occupied by built-up land showed a significant decreasing trend. (3) The impact of farmland changes from 2000 to 2018 contributed 1.22% to the increase of NPP in the ORTS region. This study not only provides a research paradigm in quantifying the production and ecological impacts of a particular land use type change that can be applied in related studies in other regions, but at the same time, the results of the empirical analysis in the ORTS region can also provide suggestions for the rational use and conservation of farmland and the stability and sustainable development of ecosystems for the region and even the TP.
WOS关键词NET PRIMARY PRODUCTIVITY ; LAND-USE
资助项目Second Tibetan Plateau Scientific Expedition and Research[2019QZKK0603] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA20040000] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA20090000]
WOS研究方向Environmental Sciences & Ecology
语种英语
出版者MDPI
WOS记录号WOS:000902512700001
资助机构Second Tibetan Plateau Scientific Expedition and Research ; Strategic Priority Research Program of Chinese Academy of Sciences
源URL[http://ir.igsnrr.ac.cn/handle/311030/188683]  
专题中国科学院地理科学与资源研究所
通讯作者Wang, Xue; Lu, Yahan
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Liu, Yunxi,Wang, Xue,Xin, Liangjie,et al. Impact of Farmland Change on Vegetation NPP in the One River and Two Streams Region of Tibet[J]. LAND,2022,11(12):14.
APA Liu, Yunxi,Wang, Xue,Xin, Liangjie,&Lu, Yahan.(2022).Impact of Farmland Change on Vegetation NPP in the One River and Two Streams Region of Tibet.LAND,11(12),14.
MLA Liu, Yunxi,et al."Impact of Farmland Change on Vegetation NPP in the One River and Two Streams Region of Tibet".LAND 11.12(2022):14.

入库方式: OAI收割

来源:地理科学与资源研究所

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