An Operational Assessment Framework for Near Real-time Cropland Dynamics:Toward Sustainable Cropland Use in Mid-Spine Belt of Beautiful China
作者机构：Department of Earth System ScienceMinistry of Education Key Laboratory for Earth System ModelingInstitute for Global Change StudiesTsinghua UniversityBeijing 100084China Ministry of Education Ecological Field Station for East Asian Migratory BirdsBeijing 100084China Tsinghua University(Department of Earth System Science)-Xi’an Institute of Surveying and Mapping Joint Research Center for Next-Generation Smart MappingBeijing 100084China Key Laboratory of Digital Earth ScienceAerospace Information Research InstituteChinese Academy of SciencesBeijing 100094China International Research Center of Big Data for Sustainable Development GoalsBeijing 100094China University of Chinese Academy of SciencesBeijing 100049China Food and Agriculture Organization of the United NationsViale delle Terme di Caracalla00153 RomeItaly College of Land Science and TechnologyChina Agricultural UniversityBeijing 100193China Department of GeographyDepartment of Earth Sciences and Institute for Climate and Carbon NeutralityUniversity of Hong KongHong Kong 999077China
出 版 物：《Journal of Remote Sensing》 (国际遥感学报（英文）)
年 卷 期：2023年第3卷第1期
页 面：247-263页
核心收录：
学科分类：09[农学] 0903[农学-农业资源与环境] 090301[农学-土壤学]
基 金：supported by the National Key R&D Program of China(2019YFA0606601) the Tsinghua University Initiative Scientific Research Program(20223080017) the National Natural Science Foundation of China(42201367)
主 题：Sustainable southwest policy
摘 要：Cropland monitoring is a crucial component for a broad user community from Land Use and Land Cover Change study to food security policy *** with the rich natural ecological environment and variable agricultural production conditions of Mid-Spine Belt of Beautiful China(MSBBC),this study developed a novel operational assessment framework that combined the near real-time land cover mapping platform(i.e.,FROM-GLC Plus),the FAO Agricultural Stress Index System,and the land degradation monitoring method suggested by United Nations Convention to Combat Desertification for the timely monitoring of cropland extent change,cropland conditions,and cropland *** integrated monitoring system,this framework can provide convenient access to high-spatiotemporalresolution cropland maps(30 m,dekadal)and instant(near real time)cropland *** to the monitoring results,we found that the abnormally high temperatures of summer 2022 adversely affected crop health in the southwest of ***,our results suggested that China’s ecological restoration projects made remarkable achievement in *** productivity of more than 70% of cropland in MSBBC has improved,and only~6% cropland(~3.69×104 km^(2))has degraded since 2000,mainly distributed in cropland with steep slope,insufficient precipitation,and intensive ***-specific measures,such as conservation tillage,improved tillage systems,and cropland ecological projects,should be adopted for sustainable cropland use and further increase in land carrying capacity of MSBBC to achieve balanced east-west development in China.
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