Abstract:

Using Chuzhou's land utilization changing data from 1996 to 2005 as the basic material for the research,the quantitative analysis of land utilization structure differentiation in the research area was carried out by means of relevant structural quantitative analysis of diversity index,dominance index and evenness index of landscape ecology.Research results showed that: (1) This method can better unveil the changing rule of recent years' land utilization structure characteristics in Chuzhou;(2) The changing trend of Chuzhou's land utilization structure tends to be diversified and averaged;(3) From 1996 to 2005,the changing intensity of Chuzhou's various land utilization types is: grass land＞transportation land＞garden plot＞virgin land＞forest land＞residential area and industry and mining land＞farmland＞other agricultural land＞irrigation works land;the increase of forest land,residential area and industry and mining land,and other agricultural land is balanced mainly by developing virgin land,farmland,garden plot and grass land;(4) There is a remarkable difference between the relative changing,structural changing of various lands of the main urban areas of Chuzhou and that of every county (city) under Chuzhou municipality;the land utilization changing intensity of the main urban areas is residential area and industry and mining land＞farmland＞grass land＞forest land＞virgin land＞transportation land＞other agricultural land＞irrigation works land＞garden plot,while the land utilization changing intensity of every county (city) under Chuzhou municipality is grass land＞virgin land＞farmland＞forest land＞irrigation works land＞other agricultural land＞residential area and industry and mining land＞garden plot＞transportation land.Finally,suggestions on corresponding countermeasures and measures were proposed according to the research results.

Key words: land use structure, landscape ecology, Chuzhou City