水利水电技术（中英文）2026，Vol.57Issue(5)：68-81,14.DOI:10.13928/j.cnki.wrahe.2026.05.006
东北三省不同土地利用类型的气象干旱对农业干旱的影响及贡献
Influence and contribution of meteorological drought on agricultural drought across different land use types in three provinces of Northeast China
摘要
Abstract
[Objective]The extent and contribution of meteorological drought's influence on agricultural drought across different land use types in the three provinces of Northeast China remain unclear.Given that meteorological drought serves as a key driver of agricultural drought,it is necessary to quantify its influence and contribution.[Methods]The Standardized Precipitation Evapotranspiration Index(SPEI)and the Vegetation Condition Index(VCI)were used to represent meteorological drought and agricultural drought,respectively.Using trend analysis,correlation coefficients,and residual trend analysis,the spatiotemporal variation characteristics and response relationships between meteorological and agricultural drought across different land use types in the three provinces of Northeast China from 2000 to 2023 were investigated.Additionally,the contributions of climatic factors(SPEI and precipitation)and human activities to agricultural drought were evaluated.[Results]The result showed that:(1)across different regions and different land use types,both SPEI and VCI in the three provinces of Northeast China exhibited upward trends,indicating a gradual alleviation of meteorological and agricultural drought.(2)SPEI and VCI were positively correlated across different regions and different land use types,with forest land being the least sensitive.(3)The combined influence of climatic factors(SPEI and precipitation)and human activities drove changes in agricultural drought in the three provinces of Northeast China.Human activities were identified as the primary driver of agricultural drought changes in cropland,accounting for 70.5％of the total contribution.Moreover,the contribution of human activities significantly exceeded that of climatic factors,especially across the entire Liaoning Province,southeastern Jilin Province,and western Heilongjiang Province,where positive contributions from human activities exceeded 80％.[Conclusion]These findings reveal the variation patterns of meteorological and agricultural droughts in the three provinces of Northeast China and provide a theoretical basis for evaluating drought disaster relationships.关键词
标准化降水蒸发指数/植被状态指数/干旱响应/人类活动/东北三省/气象干旱/土地利用类型/影响因素Key words
standardized precipitation evapotranspiration index/vegetation condition index/drought response/human activities/three provinces of Northeast China/meteorological drought/land use types/influencing factors分类
信息技术与安全科学引用本文复制引用
阚雨萌,武晋雯,常峻菲,宋若宁,王晨,冯锐,陈妮娜,谭月..东北三省不同土地利用类型的气象干旱对农业干旱的影响及贡献[J].水利水电技术（中英文）,2026,57(5):68-81,14.基金项目
国家重点研发计划专项(2022YFF0801301) （2022YFF0801301）
辽宁省农业气象灾害重点实验室联合开放基金(2024SYIAEKFZD08) （2024SYIAEKFZD08）
中国气象局气象能力提升联合研究专项重点项目(23NLTSZ006) （23NLTSZ006）
辽宁省应用基础研究计划(2022JH2/101300193) （2022JH2/101300193）
辽宁省科技计划联合计划(技术攻关计划项目)(2024JH2/102600166) （技术攻关计划项目）
中国气象局气象能力提升联合研究专项(23NLTSQ012) （23NLTSQ012）
