江苏省耕地多功能时空动态分析及对耕地数量变化响应研究  

Spatial and Temporal Dynamic Analysis of Cultivated Land Multifunction in Jiangsu Province and Its Response to Cultivated Land Change

作　　者：许多艺 濮励杰[1,2] 黄思华 聂名萱 郄璐 朱明 XU Duo-yi;PU Li-jie;HUANG Si-hua;NIE Ming-xuan;QIE Lu;ZHU Ming(School of Geographic and Oceanographic Sciences,Nanjing University,Nanjing 210023,China;The Key Laboratory of the Coastal Zone Exploitation and Protection,Ministry of Natural Resources,Nanjing 210023,China)

机构地区：[1]南京大学地理与海洋科学学院,江苏南京210023 [2]自然资源部海岸带开发与保护重点实验室,江苏南京210023

出　　处：《长江流域资源与环境》2022年第3期575-587,共13页Resources and Environment in the Yangtze Basin

基　　金：国家自然科学基金项目(41871083)。

摘　　要：耕地资源的日益紧缺推动着耕地功能的深刻变化。以江苏省63个县域为研究单元,从生产、生态、景观、社会4个维度构建耕地多功能评价指标体系,利用耕地指数及敏感度分析模型,研究2000~2018年耕地各项功能的时空演变规律及其对耕地数量变化的敏感程度。结果表明:(1)江苏省耕地生产功能上升,空间上北高南低且苏北高值区不断向南扩散。生态功能下降,苏中地区功能高,且苏中、苏北局部地区因农用技术改良,功能由下降逐渐转为上升。景观功能上升,空间上东高西低,东部海岸带功能高,局部地区如苏锡常因耕地非农化现象严重,功能由上升转为下降。社会功能下降,空间上北高南低但苏北高值区不断萎缩。(2)江苏省耕地面积总体下降,自北往南耕地下降程度逐渐加剧。耕地相对稀疏区主要分布在苏南,集聚区主要分布在苏中、苏北,东部沿海地带最为集聚。(3)对比2000~2010和2010~2018年两个时期,生产功能敏感性下降,敏感区缩至东部沿海三县;生态功能敏感性下降,敏感区缩至苏南地区,均与农业技术推进及耕地集约利用相关。景观功能敏感性上升,敏感区扩散至苏南及东部沿海地区;社会功能敏感性上升,敏感区逐渐遍布全省,均对耕地数量变化愈加敏感。The increasing shortage of cultivated land resources drives profound changes in cultivated land multifunction.63 counties in Jiangsu Province were selected as study units.This paper constructed the multi-functional evaluation index system of cultivated land from four dimensions of production,ecology,landscape and society.Sensitivity analysis model and cultivated land index were used to analyze the spatial and temporal evolution of cultivated land functions and its sensitivity to cultivated land change from 2000 to 2018.The results showed:(1) Production function of cultivated land in Jiangsu Province increased.Spatially higher in the north and lower in the south,and the high-value areas in Northern Jiangsu continued to spread.Ecological functions declined.The function of Central Jiangsu was high.Due to the improvement of agricultural technology,some areas of Central Jiangsu and Northern Jiangsu had gradually changed from decline to increase.Landscape function increased,spatially higher in the east and lower in the west.The function of Eastern Coastal area was high.In some areas,such as Suzhou,Wuxi and Changzhou,due to the serious decline of cultivated land,the function has changed from rising to falling.The social function declined,spatially higher in the north and lower in the south.But the high-value areas in northern Jiangsu continued to shrink.(2) The overall cultivated land area of Jiangsu Province declined,gradually intensified from north to south.The relatively sparse area of cultivated land was mainly distributed in Southern Jiangsu while the agglomerate area was mainly distributed in Central and Northern Jiangsu.Cultivated land of Eastern Coastal area was the most concentrated.(3) Compared with 2000-2010,sensitivity of production function decreased during 2010-2018,whereas the sensitive area shrank to three counties in Eastern Coastal area.Sensitivity of ecological function decreased,whereas the sensitive area shrank to southern Jiangsu.The decline of production function and ecological function were relat

关 键 词：耕地多功能 耕地数量变化 敏感度分析 时空演变 江苏省 

分 类 号：F323.[经济管理—产业经济]