摘要
为满足国土空间规划的需求,从自然条件、管理制度构建了建设用地、耕地适宜性评价的禁止性指标和限制性指标。评价中,首先定性分析区域内具体指标对农业、建设等不同功能的限制性,对生态极重要或极敏感区、水域等禁止性指标"一票否决",然后设定不同的指标等级分值、权重,进行综合打分,限制性指标以分值(0~100,分数越高,表示限制性越低,适宜性越高)和权重对国土空间开发适宜性进行限制。结合生态重要性和敏感性评价,以GIS技术为基础,比较同一地块生态、农业、建设适宜性等级,按三者中等级最高的确定空间类型,如果适宜性等级相同,则根据地块的具体资源环境属性、土地利用现状确定空间类型,结合生态系统完整性、农业现代化需求等调整优化生态、农业、建设三类空间。以湖南省为例进行了实证研究,划分建设开发空间20.22%,农业开发空间30.3%,生态保护空间49.48%。
In order to satisfy the requirement of space planning,the authors have constructed the prohibitive and restrictive factors of suitability evaluation of construction land and cultivated land with natural geographical condition and institutional policy.In the evaluation,firstly,the restriction of specific indicators on dierent functions such as agriculture and construction in the region is qualitatively analyzed,and the prohibitive indicators such as ecologically important or extremely sensitive areas and waters are"vetoed by one vote".Then,different index grades and weights ae set for comprehensive scoring.The prohibitive factors mens"no"for construction land and cultivated land,and the restrictive factors are limited by value(0~100,the higher the better)and the weight on the suitability.Combined with the evaluation of ecological importance and sensitivity,based on GIS technology,and comparing the suitability grades of ecology,agriculture and construction in the same plot,the authors determine the space types according to the highest level of the three.If the suitability grades ae the same,the space types are determined according to the specific resource and environment attributes of the plot and the current situation of land use,and the ecological,agricultural and construction spaces are adjusted and optimized according to the integrity of the ecosystem and the needs of agricultural modernization.Taking Hu'nan Province as an example,the authors divided the whole space into the construction with development space(20.22%),the agricultural development space(30.3%),the ecological protection space(49.48%).
作者
曾毅
项广鑫
蒋星祥
李慎鹏
张建新
ZENG Yi;XIANG Guangxin;JIANG Xingxiang;LI Shenpeng;ZHANG Jianxin(Hu'nan Key Lab of Land&Resource Evaluation&Utilization,Changsha 410007,Hu'nan,China;Hu'nan Land and Resources Planning Institute,Changsha 410007,Hu'nan,China;Hu'nan Vocational College of Engineering,Changsha 410151,Hu'nan,China)
出处
《地质通报》
CAS
CSCD
北大核心
2020年第1期138-145,共8页
Geological Bulletin of China
基金
湖南创新型省份建设专项(编号:2019SK2101)
关键词
国土空间
自然适宜性
三类空间
方法
湖南
land space
natural suitability
three kinds of space
method
Hu'nan Province
作者简介
曾毅(1972-),男,硕士,高级工程师,从事土地资源管理研究。E-mail:1105039146@qq.com.
