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Spatiotemporal Analysis of Drought Variation from 2001 to 2023 in the China-Mongolia-Russia Transboundary Heilongjiang River Basin Based on ITVDI

文献类型：期刊论文

作者Zou, Weihao2,3; Wang, Juanle1,2,4; Li, Congrong2; Yang, Keming3; Fetisov, Denis6; Jiang, Jiawei2,3; Liu, Meng2,5; Liu, Yaping2,3
刊名REMOTE SENSING
出版日期2025-07-09
卷号17期号:14页码:2366
关键词drought Heilongjiang River Basin TVDI constrained line fitting method ITVDI China-Mongolia-Russia transboundary region
DOI10.3390/rs17142366
产权排序2
文献子类Article
英文摘要Drought impacts agricultural production and regional sustainable development. Accordingly, timely and accurate drought monitoring is essential for ensuring food security in rain-fed agricultural regions. Alternating drought and flood events frequently occur in the Heilongjiang River Basin, the largest grain-producing area in Far East Asia. However, spatiotemporal variability in drought is not well understood, in part owing to the limitations of the traditional Temperature Vegetation Dryness Index (TVDI). In this study, an Improved Temperature Vegetation Dryness Index (ITVDI) was developed by incorporating Digital Elevation Model data to correct land surface temperatures and introducing a constraint line method to replace the traditional linear regression for fitting dry-wet boundaries. Based on MODIS (Moderate-resolution Imaging Spectroradiometer) normalized vegetation index and land surface temperature products, the Heilongjiang River Basin, a cross-border basin between China, Mongolia, and Russia, exhibited pronounced spatiotemporal variability in drought conditions of the growing season from 2001 to 2023. Drought severity demonstrated clear geographical zonation, with a higher intensity in the western region and lower intensity in the eastern region. The Mongolian Plateau and grasslands were identified as drought hotspots. The Far East Asia forest belt was relatively humid, with an overall lower drought risk. The central region exhibited variation in drought characteristics. From the perspective of cross-national differences, the drought severity distribution in Northeast China and Inner Mongolia exhibits marked spatial heterogeneity. In Mongolia, regional drought levels exhibited a notable trend toward homogenization, with a higher proportion of extreme drought than in other areas. The overall drought risk in the Russian part of the basin was relatively low. A trend analysis indicated a general pattern of drought alleviation in western regions and intensification in eastern areas. Most regions showed relatively stable patterns, with few areas exhibiting significant changes, mainly surrounding cities such as Qiqihar, Daqing, Harbin, Changchun, and Amur Oblast. Regions with aggravation accounted for 52.29% of the total study area, while regions showing slight alleviation account for 35.58%. This study provides a scientific basis and data infrastructure for drought monitoring in transboundary watersheds and for ensuring agricultural production security.
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WOS关键词ENHANCED VEGETATION INDEX ; METEOROLOGICAL DROUGHT ; PDSI ; NDVI ; SPACE ; LINE
WOS研究方向Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
语种英语
WOS记录号WOS:001535614700001
出版者MDPI
源URL[http://ir.igsnrr.ac.cn/handle/311030/215392]  
专题资源与环境信息系统国家重点实验室_外文论文
通讯作者Wang, Juanle
作者单位1.Jiangsu Ctr Collaborat Innovat Geog Informat Resou, Nanjing 210023, Peoples R China;
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China;
3.China Univ Min & Technol Beijing, Coll Geosci & Surveying Engn, Beijing 100083, Peoples R China;
4.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China;
5.Jiangsu Ocean Univ, Sch Marine Technol & Geomat, Lianyungang 222005, Peoples R China
6.Russian Acad Sci, Inst Complex Anal Reg Problems, Far Eastern Branch, Birobidzhan 679016, Russia;
推荐引用方式
GB/T 7714		 Zou, Weihao,Wang, Juanle,Li, Congrong,et al. Spatiotemporal Analysis of Drought Variation from 2001 to 2023 in the China-Mongolia-Russia Transboundary Heilongjiang River Basin Based on ITVDI[J]. REMOTE SENSING,2025,17(14):2366.
APA Zou, Weihao.,Wang, Juanle.,Li, Congrong.,Yang, Keming.,Fetisov, Denis.,...&Liu, Yaping.(2025).Spatiotemporal Analysis of Drought Variation from 2001 to 2023 in the China-Mongolia-Russia Transboundary Heilongjiang River Basin Based on ITVDI.REMOTE SENSING,17(14),2366.
MLA Zou, Weihao,et al."Spatiotemporal Analysis of Drought Variation from 2001 to 2023 in the China-Mongolia-Russia Transboundary Heilongjiang River Basin Based on ITVDI".REMOTE SENSING 17.14(2025):2366.

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来源：地理科学与资源研究所

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