过去千年黄河中下游地区耕地覆被变化定量重建  

A 1000-year history of cropland cover change along the middle and lower reaches of the Yellow River in China

作　　者：杨帆 张航 何凡能 王亚非 周胜男 董冠鹏 YANG Fan;ZHANG Hang;HE Fanneng;WANG Yafei;ZHOU Shengnan;DONG Guanpeng(Key Research Institute of Yellow River Civilization and Sustainable Development,Henan University,Kaifeng 475001,Henan,China;Key Laboratory of Land Surface Pattern and Simulation,Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,China)

机构地区：[1]Key Research Institute of Yellow River Civilization and Sustainable Development,Henan University,Kaifeng 475001,Henan,China [2]Key Laboratory of Land Surface Pattern and Simulation,Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,China

出　　处：《Journal of Geographical Sciences》2024年第5期921-941,共21页地理学报（英文版）

基　　金：National Natural Science Foundation of China,No.42201263;National Key Research and Development Program of China on Global Change,No.2017YFA0603304。

摘　　要：Landscape in the middle and lower reaches of the Yellow River in China has un-dergone significant changes for thousands of years due to agricultural expansion.Lack of reliable long-term and high-resolution historical cropland data has limited our ability in un-derstanding and quantifying human impacts on regional climate change,carbon and water cycles.In this study,we used a data-driven modeling framework that combined multiple sources of data(historical provincial cropland area,historical coastlines,and satellite da-ta-based maximum cropland extent)with a new gridding allocation model for croplands dis-tribution to reconstruct a historical cropland dataset for the middle and lower reaches of the Yellow River at a 10-km resolution for 58 time points ranging from the period 1000 to 1999.The cropland area in the study area increased by 2.3 times from 21.87 million ha in 1000 to 50.64 million ha in 1999.Before 1393,the area of cropland increased slowly and was pri-marily concentrated in the Weihe and Fenhe plains.From 1393-1820,the area of cropland increased rapidly,particularly on the North China Plain.Since 1820,cropland cover has tended to become saturated.Our newly reconstructed results agreed well with remotely sensed data as well as historical document-based facts regarding cropland distribution.

关 键 词：land use/cover change gridding allocation cropland cover last millennium 

分 类 号：S127[农业科学—农业基础科学]