南方山地丘陵区资源环境承载能力监测预警技术方法探讨——以福建省为例

Early-warning Technical Methods of the Resources and Environment Carrying Capacity in Southern Mountainous Region: A Case Study of Fujian Province

以福建省为例,综合运用文献研究法、地理比较法、GIS空间分析和数理模型等研究方法,按照评价技术与区域特色相匹配、开发阈值与主体功能相协调、划分结果与自然分异相统一的设计思路,构建适宜山地丘陵区的资源环境承载能力监测预警改进方案。提出:①评价模型中引入山地丘陵区的特征要素,着重探讨土地资源评价中坡度、生态保护红线、行洪通道等影响因子分值的调整,水资源评价方法的替换,重点生态功能区集成方法的调整等。②在地形复杂多变、区域差异显著的情况下,宜尽可能采用具有全域覆盖特征的数据替代孤立点位数据。集中体现在农产品主产区采用的耕地质量等别评定数据,生态评价采用的以地灾点为中心的地质灾害综合影响指数中。

Regional early-warning technical methods of the resources and environment carrying capacity are important application for comprehensive and regional geography theories.Under the influence of the scale effects,there are obvious differences in the controlling factors of resources and environment.The promotion of national technical methods should be combined with regional characteristics to improve.Taking Fujian Province as an example,the article forms a perfect plan for early-warning technical methods of the resources and environment carrying capacity suitable for mountainous hilly areas.The research methods adopted include literature research method,geographic comparison method,GIS spatial analysis,and mathematical model.Summarized the spatial heterogeneity and regional specificity of Fujian Province,that is,there are few mountainous areas and prominent contradictions between man and land in China’s developed coastal areas.The research idea of program improvement is that the evaluation technology matches the provincial characteristics,the development threshold is coordinated with the main function,and the division result and the natural differentiation are unified.The conclusions are presented:1)The characteristic elements of the mountainous hilly area are introduced in the evaluation model.Emphasis is placed on the adjustment of the impact factor scores such as slope,ecological protection red line and flood passage in land resource evaluation,the replacement of water resources assessment methods,and the adjustment of key ecological function zone integration methods.2)In the case of complex and variable terrain and significant regional differences,it is advisable to replace the isolated point data with data with global coverage as much as possible.It is concentrated in the evaluation data of cultivated land quality used in the main producing areas of agricultural products,and the comprehensive impact index of geological disasters centered on the earthquake disasters.