摘要
“三生”空间的科学划分是国土空间规划与治理体系的基础,而划分的关键在于定量识别与测度土地利用功能。该研究基于土地利用多功能价值评估方法体系,提出“三生”空间表达模式,并以张家口市为例进行“三生”空间识别与分区调控。结果表明:1)张家口市“三生”空间共涵盖9种功能组合模式,其中生态-生产-生活均衡空间比例最大,且超过80%的空间存在三重功能;2)张家口市不同功能组合模式在空间分布上呈现“局部集聚,全局分散”特征。生产功能主导空间与生活功能主导空间主要分布在洋河、桑干河和壶流河谷地,而生态功能主导空间则主要分布于东部的燕山余脉和南部太行山脉附近;3)张家口市“三生”空间优化分区可划为5种类型,生产和生活功能为主的空间分区要在强化主导功能的基础上,实现“三生”功能的协调发展,而生态功能为主的空间分区则以生态保育为首要目标。
Territorial spaces are generally multifunctional,including production,living and ecological functions.Delimiting scientifically Production-Living-Ecological space(PLE)has become essential to identify and estimate the functions of land use,particularly for the planning and administration system in the sustainable development strategy of modern agriculture.In this study,taking the city of Zhangjiakou as a research object,an evaluation system was established for the value of land use functions,with emphasis on an integrated perspective of production suitability,living suitability,and ecological importance.A 1 km×1 km grid cell can be used to integrate the multi-source data from the land use,remote sensing,soil,hydrology,and socio-economic statistics.The evaluation methods were mostly associated with the environmental and ecological economics.Three classifications were divided according to the value of production,living and ecological function.25 types of function composite patterns in the PLE space were achieved,using the natural breakpoint method,the spatial overlay analysis,and the arrayed rule in combinatorics.The results indicated that:1)The PLE space in Zhangjiakou city covered 9 functional composite patterns,in addition to the uniform space of production-living-ecological,where the proportion of the space dominated by ecological function was the maximum,42.50%,the space dominated by living function was the second,5.6%,and the space dominated by production function was the minimum,2.81%.It indicated that maintaining ecological stability was the main mission of the land use function in the current stage of social and economic development in Zhangjiakou.More than 80%of the space showed all three PLE functions,indicating that there was very significant versatility in this case.2)There was obvious spatial consistency between the space dominated by production function and that by living function,while,there was obvious spatial complementarity between the spaces dominated by ecological function.Specifically,the spatial consistency was mainly distributed in the Yanghe river valley basin,Sanggan river basin and Huliu river basin,whereas,the spatial complementarity was mainly distributed in the mountain of Yanshan and Taihang in the east of the study area.The function of composite patterns was found with the prominent diversity in spatial distribution,showing a“local agglomeration,global dispersion”spatial features.In the same function combination,the spatial aggregation was higher,but lower in the different function combination.It infers that there was a relatively strong ability for the integration and complementarity between the same functional combination modes,whereas,there can be fierce conflicts and contradictions in regional land use,particularly on the different functional combination modes.3)Five types can be divided during the optimization of partition of PLE,including the comprehensive improvement zone,ecological conservation zone,main production-living and ecological improvement zone,main living-production ecological improvement zone,and balanced production and life-ecological improvement zone.The coordinated development of functions in PLE can be realized for the space dominated by production function,and by living function,whereas,the ecological conservation as the primary goal can be served as the main mission in the space dominated by ecological function for the sustainable development strategy.
作者
冀正欣
刘超
许月卿
黄安
卢龙辉
段亚明
Ji Zhengxin;Liu Chao;Xu Yueqing;Huang An;Lu Longhui;Duan Yaming(College of Land Science and Technology,China Agricultural University,Beijing 100193,China;Key Laboratory for Agricultural Land Quality,Monitoring and Control,The Ministry of Natural Resources,Beijing 100193,China;College of Public Administration,Central China Normal University,Wuhan 430079,China)
出处
《农业工程学报》
EI
CAS
CSCD
北大核心
2020年第18期222-231,F0003,共11页
Transactions of the Chinese Society of Agricultural Engineering
基金
国家自然科学基金项目(41971238)。
关键词
土地利用
功能
三生空间
价值评估
功能识别
张家口市
land use
functions
production-living-ecological space
value assessment
function identifying
Zhangjiakou City
