中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
The Forest Change Footprint of the Upper Indus Valley, from 1990 to 2020

文献类型:期刊论文

作者Yan, Xinrong1,4; Wang, Juanle1,2,3,4
刊名REMOTE SENSING
出版日期2022-02-01
卷号14期号:3页码:19
关键词forest disturbance forest recovery footprint information LandTrendr spectral-temporal segmentation algorithm upper Indus Valley
DOI10.3390/rs14030744
通讯作者Wang, Juanle(wangjl@igsnrr.ac.cn)
英文摘要The upper Indus Valley is the most important and vulnerable water tower in the South Asian subcontinent, which provides a vital water supply for 230 million people in the basin. Forests play an important role in water conservation in this region, and the security of upstream forests forms the foundation downstream water and food security. However, a big challenge is to effectively monitor the dynamics of the forest in this region. Thus, we used the LandTrendr spectral-temporal segmentation algorithm combined with 8203 scenes of multi-source remote sensing data to study the forest change footprint in the upper Indus Valley. The overall accuracy of LandTrendr extraction for forest disturbance and recovery was 86.01%, and the Kappa coefficient was 0.73. The results showed the following: (1) From 1990 to 2020, the area of forest recovery was 1.01% more than that of disturbance, 70% of disturbance occurred between 1990 and 2001, and 60% of recovery occurred between 1999 and 2012. (2) Although the overall trend of forest disturbance and recovery was balanced, there were significant differences in forest management status among the different regions. Nepal has the highest forest stability, India has the largest area of forest disturbance, and Pakistan and China have the largest areas of forest recovery. (3) India's Himachal Pradesh and Jammu and Kashmir are the two provinces with the largest disturbed areas, primarily due to grazing, fires, and commercial tree planting. Pakistan's North-West Frontier, Azad Kashmir, and China's Tibet Ali region were major contributors to the recovery, which was driven by afforestation policies in both countries. This study provides an important data base and monitoring method for planning land and forest use in Indus Valley countries, protecting fragile environments, and promoting policies for the Sustainable Development Goals.
WOS关键词DISTURBANCE ; TRANSFORMATION ; VULNERABILITY ; LANDTRENDR ; DERIVATION ; LANDSAT-7 ; ENSEMBLE ; CLIMATE ; BIOMASS
资助项目China-Pakistan Joint Research Center on Earth Sciences ; Construction Project of the China Knowledge Center for Engineering Sciences and Technology[CKCEST-2020-2-4]
WOS研究方向Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
语种英语
WOS记录号WOS:000759435600001
出版者MDPI
资助机构China-Pakistan Joint Research Center on Earth Sciences ; Construction Project of the China Knowledge Center for Engineering Sciences and Technology
源URL[http://ir.igsnrr.ac.cn/handle/311030/171775]  
专题中国科学院地理科学与资源研究所
通讯作者Wang, Juanle
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China
2.China Pakistan Earth Sci Res Ctr, Islamabad 45320, Pakistan
3.Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Nanjing 210023, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Yan, Xinrong,Wang, Juanle. The Forest Change Footprint of the Upper Indus Valley, from 1990 to 2020[J]. REMOTE SENSING,2022,14(3):19.
APA Yan, Xinrong,&Wang, Juanle.(2022).The Forest Change Footprint of the Upper Indus Valley, from 1990 to 2020.REMOTE SENSING,14(3),19.
MLA Yan, Xinrong,et al."The Forest Change Footprint of the Upper Indus Valley, from 1990 to 2020".REMOTE SENSING 14.3(2022):19.

入库方式: OAI收割

来源:地理科学与资源研究所

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