基于质量和生态互馈的下辽河平原耕地退化的影响机理及治理对策  

Influence mechanism and governance strategies of cultivated land degradation in Lower Liaohe Plain from the mutual feedback perspective of quality and ecology

作　　者：宋戈[1,2,3] 蔡钊阳 隋虹均 苏锐清 SONG Ge;CAI Zhaoyang;SUI Hongjun;SU Ruiqing(Department of Land Resources Management,School of Humanities and Law,Northeastern University,Shenyang 110169,China;Research Base of Land Use and Protection of Liaoning Province,Shenyang 110169,China;Key Laboratory of Land Protection and Use,Department of Natural Resources of Liaoning Province,Shenyang 110169,China)

机构地区：[1]东北大学文法学院土地资源管理系,沈阳110169 [2]辽宁省土地利用与保护研究基地,沈阳110169 [3]辽宁省自然资源厅土地保护与利用重点实验室,沈阳110169

出　　处：《农业工程学报》2024年第17期273-282,共10页Transactions of the Chinese Society of Agricultural Engineering

基　　金：辽宁省社会科学规划基金重点建设学科项目(L23ZD027);国家自然科学基金项目(41971247)。

摘　　要：耕地退化主要表现为耕地质量退化和耕地生态退化,二者之间相互反馈对耕地退化影响显著。该研究以下辽河平原典型区域沈阳市为研究区,运用主客观赋权法、多种回归方法和模糊数据集比较法等,从质量和生态互馈视角,构建耕地退化测度体系,探究耕地退化的时空特征及影响机理,提出缓解耕地退化的治理对策。结果表明:1)研究区发生耕地质量退化的比例为35.31%,呈现出“东强西弱”的时空格局。耕地生态退化的比例为79.10%,表现出“北强南弱”的时空格局。基于质量和生态互馈的耕地退化比例为37.80%,显现出“南北强中间弱”的时空格局。2)受自然和社会经济因素影响,耕地退化呈现区域空间的异质性和时间的非平稳性,在组态中生成不同的组成结构且协同作用于耕地退化,进而形成了耕地退化的区域性、阶段性和结构性影响机理。3)实施分级、分区的耕地保护利用与管控体系和综合多要素协同治理保障策略,有利于缓解耕地退化态势。该研究基于质量和生态互馈视角深化了耕地退化的影响机理,为耕地退化的精准、高效、协同治理提供政策参考,在一定程度上能够实现耕地质量、生态环境和抵御外界不利因素能力的同步提升。Cultivated land degradation has seriously threatened to the national food security and sustainable land use.Among them,the sustainability of cultivated land can decrease or even completely lose,when it is subjected to the external disturbance.This temporal and spatial evolution can represent the cultivated land quality and ecological degradation.Significant mutual feedback between them can also impact the cultivated land degradation.It is crucial to clarify the mechanisms of cultivated land degradation and governance strategies,in order to ensure the national food security and sustainable utilization of cultivated land.Most existing studies have been focused on the evaluation and monitoring of cultivated land degradation.However,it is still lacking to consider the"comprehensive"interaction between the quality and ecological degradation of cultivated land.Furthermore,it is a high demand to clarify the influencing factors and mechanism of cultivated land degradation for the effective countermeasures.In this study,a novel system was constructed to measure the cultivated land degradation from the mutual feedback perspective of quality and ecology.Shenyang City in the typical Liaoning Plain area was also selected as the research area.The spatiotemporal characteristics,influence mechanisms and governance strategies of cultivated land degradation were explored using principal component analysis,objective weighting,exploratory regression,geographical weighted regression,quantile regression,and fuzzy data set comparison.The results show:1)The proportion of cultivated land quality degradation was 35.31%in the study area,indicating a"strong east,weak west"spatiotemporal pattern;The proportion of cultivated land ecological degradation was 79.10%,with the spatiotemporal pattern of"strong north,weak south";According to the quality and ecological mutual feedback,the proportion of cultivated land degradation was 37.80%,indicating a“strong north and south,weak middle”spatiotemporal pattern.2)The temperature,vegetation coverag

关 键 词：耕地退化 生态退化 耕地质量 影响机理 下辽河平原 

分 类 号：F301.21[经济管理—产业经济]