Ecological Environment Quality Conditions Preliminary Research Of Chengdu Urban Based On RS, GIS&GPS Technology

With the progress of science and technology and the development of the society,the ecological environment resources by excessive development that cause that theenvironment is polluting,the ecological environment is worsening, the environmentalissues is worsning, and people survival and development face a major threat. Howto reasonably development resources for human and the nature harmonious get alongin the development and at the same time protecting natural environment, so thatregularly carry out the ecological environment quality survey and comment on theresearch appears especially important.It can maintain the sustainable development ofecological environment, but also for urban economic development and ecologicalenvironment protection to provide theory support and decision-making basis.At present ecological environmental quality assessment is in the primary stage,the international on environment evaluation has not been a complete evaluationsystem. To determine the weight values is the focus of the evaluation methods, butnow the evaluation method of most of the weight of by human interference factors isbigger. By using the "3S" technology and environment and related theory andtechnology, collecting the data and investigation to TM remote sensing image as datasources, it establish interpreting marks.Through the chengdu2010years of remotesensing image processing, we can get in chengdu city land type situation andestablish the research area ecological environment geographic database.Andmastering the area ecological and environmental conditions and other basic situation,combining previous research results, with reference to the2006nationalenvironmental protection bureau issued in the ecological environment assessment technical specifications (try out)", we research and evaluation quantitatively of theecololgical environment quality in Chengdu in analytical hierarchy process.Weaccording to the evaluation results driving force analysis,and raised the urbanecological environment protection measures.This paper made the following main research results and innovation know:(1) By using the "3S" technology and environment and related theory andtechnology,collecting the data and survey in the research area topography andgeomorphology, we establish interpreting marks and the research area ecologicalenvironment geographic database.We study area of land use content analysis forresearch area provides the data and material.(2) We can get chengdu city ecological environmental quality assessmentresults from index weight that can be got from the analytical hierarchy process.Thescore of concludes that the ecological environment quality index of Chengdu is44.63.The ecological environment quality status is “general” level.(3) according to the evaluation results, from several aspects the driving forceresearch,finally we comprehensive driving force factor in the study area that theecological environment factors.According to these factors we raised the urbanecological environment protection measures.