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我国生态压力与承载力重心动态演变分析 预览 被引量:1

Analysis on dynamic evolution of ecological pressure and capacity gravity in China
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摘要 人类生态压力与生态承载力在空间分布上存在一定偏差.研究二者的相对变化特征有助于理解和解决当前日趋严峻的区域发展不均等问题.文章在测算我目1980~2005年生态压力和生态承载力的基础上,通过计算生惫压力重心和承载力重心坐标及重心问的空间重叠性与变动一致性指标考察二者的时空演变特征.研究发现:(1)25年来我国生态压力重心变动幅度较大,受到人口与经济变动的强烈牵引;(2)生态承载力重心多分布于内陆地区,与生态压力重心的空间偏离较大;(3)生态压力和承载力的空间偏离是生态服务跨区占用和区域发展不均等的基本成因. There is spatial deviation between human ecological pressure and capacity. It is helpful to understand and solve the increasing inter-regional contradiction to study their dynamic relationship. Based on estimating the ecological pressure and capacity each province in China, 1980-2005, this paper has analyzed their temporal-spatial evolution characteristics through calculating two gravity's coordinates, spatial overlapping and changing consistency index. The results show that: (1) the ecological pressure's gravity has fluctuated greatly during 25 years and is guided strongly by population and economic fluctuation; (2) the ecological capacity's gravity is distributed in the inland areas and far away from ecological pressure's gravity; (3) the spatial deviation between ecological pressure and capacity is an important factor which causes the inequality of the ecological services and regional development.
作者 杨振 梁小翠 YANG Zhen, LIANG Xiaocui (College of Urban and Environmental Science, Huazhong Normal University, Wuhan 430079)
出处 《华中师范大学学报:自然科学版》 CAS CSCD 北大核心 2011年第1期135-138,144共5页 Journal of Central China Normal University(Natural Sciences)
基金 中央高校基本科研业务费资助项目(CCNU09A01016).
关键词 生态压力 生态承载力 几何重心 时空差异 区域不均等 ecological pressure ecological capacity geometry gravity temporal-spatialdifference regional inequality
作者简介 E-mail:yangzhen0971@163.com.
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