Ecologic land protection and development of new urban district in karst mountain:A case study in the Jinyang new district

FENG Yuan-song; YANG Qing-yuan

Abstract：It is of great significance to study the protection and planning of ecologic land in the process of town construction in karst mountain.The Jinyang new district is located to the northwest of the old city of Guiyang City.It has irreplaceable advantage in promoting regional economic development in the north of Guiyang City.This article chooses the Jinyang new district as the site of the case study,to explore the ways and means of protection for ecologic land and provide a reference for the urban ecologic planning and con-struction in karst mountain.In the Jinyang new district,ecologic ideas and measures as the ecologic space controllability,the green space system planning and layout,the water spatial planning and the ecologic land use style are used to effectively protect the ecologic land.The forest land increased from 10.22 % in 2001 to 22.1 9 % in 2010,the water remained at 2.09 % in 2010.Changes in the number and spatial distribution of ecologic land for the recent 10 years after the building of the Jinyang new district also reflect the effectiveness of the measures adopted in the building.The greatest effort has done for the protection of woodlands and wa-ter bodies.There remains a considerable amount of green areas and water bodies plot,becoming corridor of green lands and rivers.The case study in the Jinyang new district shows that,in city construction in karst mountain,it is necessary to give full consideration to planning,protection and development of the ecologic land use.