半城市化地区土地利用变化及其环境效应 --以成都新津县为例

近年成都新津县在民营经济快速发展、外来资本集中投资的推动下。经济蓬勃发展、人口快速积聚，进入半城市化发展阶段。研究表明：新津县半城市化地区土地利用变化迅速，在数量上建设用地急剧增加，耕地相应减少；在空间上建设用地大体由核心向外圈沿交通干道圈层状向外扩张；同时物种减少、地表水质变差、土地功能退化、工业三废增加、岛状气候显现等环境效应也同步发生。对半城市化地区土地利用变化的环境效应研究。有利于区域经济与生态环境协调发展。为其它半城市化地区健康发展提供借鉴。

Change of Land-use and Environmental Effect in Peri-urbanization Region: A case study of Xinjin County in Chengdu

In the past several years, drivend by the fast development of the indigenous economy and the investment from the outside, Xinjin County in Chengdu developed into the peri-urbanization phase with the development of economy and the rapid increase of population. It is concluded that, in the peri-urbanization region of Xinjin County, the utilization of land changed very fast, which shows that the construction land increased while the agricultural land decreased, and the construction land expanded from the center to the peripheral region along the main line of commumcation, and meanwhile it made urban geomorphological disasters effects on the environment,such as the decrease of the species, the worsening of water quality, the degeneration of land function and the increase of industrial wastes. The study of the environmental effects on the utilization of land in the peri-urbanization region not only does good to the harmonyious development of regional economy and environment, but also suppies a reference to the other peri-urbanization regions.