Landscape Diversity Analysis of Jinjing River in Changsha County

CHEN Xin;CHEN Yue-Hua;PAN Deng;College of Landscape Architecture, Central South University of Forestry and Technology;

Jinjing river;;landscape diversity;;landscape index;;Shannon index;;degree of agglomeration;;Changsha county

Based on the landscape ecology principles,using the data statistic function of ArcGIS and the data processing functions of Fragstats 3.3 we obtained the landscape diversity description index of 5 sections in Jinjing river.The research results showed that,the total landscape area of Jinjing river was 28.43 km2with 60.3% of field and woodland as the main substrate.There were 300 plaques to cover all river basin.The patch density wss the highest of 21.09 ones / km2in the V section,but the patch density was the least of 8.03 ones / km2in the II section.The different sections of the patch density was uneven.Landscape diversity showed some variation along the river which suffered serious artificial interference in the areas close to the city.At the same time,the landscape type information increased,and landscape fragmentation was aggravated,and distribution of the landscape types was more uniform.The degree of agglomeration was more than 81% in every sections.The agglomeration had a high level between the plaque.There were obvious advantage plaque and the low fragmentation in every section.