The assessment of urban green space system in resource-type city Jiaozuo, Henan Province, China, base on GIS (Geographic Information System)

摘要

The eco-environment pressure changes of urban greenspace system in Jiaozuo city, Henan province, China, during the yearsof 2000 and 2007, are analyzed. Taking the statistical data ofeconomy, society, and population as environment pressure factors, byusing landscape ecology theory combing with SPOT image andgeographical information system (GIS), the response of urban greenspace system to the environment pressure is discussed. The resultshows that the total green space area and the coverage rate increasedlargely from years of 2000 to 2007, while the eco-environmentpressure on urban green space system also increased year after year.The ecological environment pressure index increased from 0.470 inyear of 2000 to 0.603 in 2007,as the result of the degradation of thewhole green space pattern. The index of landscape diversitydecreased from 1.77 to 1.37, evenness index decreased from 0.88 to052, green corridor density and dimension index decreased from 0.64 and 132 to 0.43 and 1.18, while predominance index andfragmentation index were increased from 0.45 and 0.033 to 0.67 and0.074. The whole green space system of Jiaozuo is in an unstable,unreasonable and unhealthy condition under the environmentpressure.