this study aims to quantify the impacts of land use changes on ecosystem service value during large scale land development, and to provide key information for both economic development and policy makers for eco-environmental protection. the study area locates in manas river watershed which is a typical land development region in northwest china. landsat mss/tm/etm+ images in 1976, 1989, 1999 a...

this study aims to quantify the impacts of land use changes on ecosystem service value during large scale land development, and to provide key information for both economic development and policy makers for eco-environmental protection. the study area locates in manas river watershed which is a typical land development region in northwest china. landsat mss/tm/etm+ images in 1976, 1989, 1999 an...

Expressway is known as a bridge for country to modernize and the only way develop modern transportation industry. Traditional expressway service area difficult meet needs of current users, thus in order improve level high-level demand society area, set highway intelligent integrated management system based on cloud computing big data technology proposed this paper, which can fully reasonably sc...

With the rapid development of economy and society, in face an increasingly large expressway consumer group, expansion upgrading service area to marketization industrialization is only way for sustainable area. The should be adapted local conditions when expanding functions, expanded a targeted manner according characteristics each