资源型城市绿地系统环境压力分析——以焦作市为例

Environmental Pressure Analysis of Urban Green Space System in Resource Type City:A Case Study of Jiaozuo,Henan Province

选取焦作市城区2000—2004年经济、社会、人口等统计数据作为环境压力因子,分析了焦作市绿地系统在2000—2004年之间的压力变化,并探讨焦作市绿地系统在该环境压力之下的反应。结果表明:在2000—2004年间绿地总面积和覆盖率有所增加,但绿地系统承受的生态环境压力也是逐年增加的,生态环境压力指数由2000年的0.470增加到2004年的0.635,致使绿地格局整体上呈现下降的趋势。在环境压力下,焦作市绿地系统整体处于一个不稳定、不合理和不健康的状态。

The pressure changes of urban green space system in Jiaozuo City during 2000 and 2004 were analysed taking the statistical data of economy, society, population as environment pressure factors, and the response of urban green space system to the environment pressure was also discussed. Result indicated that the total green space area and the coverage fraction increased largely from 2000 to 2004, but the eeo-environment pressure on urban green space system also enhanced year after year. The ecological environment pressure index increased from 0.470 in 2000 to 0.635 in 2004, which resulted in the degradation of the whole green space pattern. The whole green space system of Jiaozuo is in an unstable, unreasonable and unhealthy condition under the environment pressure.