中国人地关系评价的理论模型与实证（英文）

论文摘要

China’s coupled human-environment system（CHES） is assessed here via a systems schema that emphasizes the complex interactions of components and their attributes. In addition to the human and environment components, we identified two other components to evaluate the relationship. The four components are human activity intensity, resource carrying capacity, ecological constraints and system’s openness. Based on their interactions, we derived a cognitive schema for classifying the level of strain or stress of an area. The analysis draws on 11 indicators and 29 sub-indicators including remote sensing data and statistical data that are used to estimate the four components. The findings indicate that human activities are highly intense in a few geographical areas, particularly large urban systems and trade and investment zones on the eastern coastal areas. Nonetheless, these areas are also well-endowed in water resources and fertile soils although urban systems are increasingly stressed from negative pollution externalities. They are also open systems which allow them to bear a higher level of pressure and adjust accordingly. Desertification and soil erosion point to relatively fragile biophysical systems in the west and southwest, but human activities are still relatively less intense compared to their coastal counterparts. As a whole, only 14% of areas may be said to be relatively or highly strained. This however belies another one-third of areas that are currently unstable, and likely to become strained and thereby vulnerable in the near future.

论文目录

文章来源

类型: 期刊论文

作者: 杨宇,李小云,董雯,POON PH Jessie,洪辉,何则,刘毅

来源: Journal of Geographical Sciences 2019年08期

年度: 2019

分类: 基础科学,工程科技Ⅰ辑

专业: 环境科学与资源利用

单位: Key Laboratory of Regional Sustainable Development Modeling, Institute of Geographic Sciences and Natural Resources Research, CAS,College of Resources and Environment, University of Chinese Academy of Sciences,Academic Divisions of the Chinese Academy of Sciences,Department of Geography, University at Buffalo-SUNY,China International Engineering Consulting Corporation

基金: National Natural Science Foundation of China,No.41430636,No.41571159

分类号: X24

页码: 1261-1283

总页数: 23

文件大小: 1448K

下载量: 259

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