Study On The Changes Of Air Quality And Water Quality And Response Of Land Use Change

Construction of ecological civilization is an important part of the future of our national economy,the Poyang Lake Ecological Economic Zone is to protect the ecological,economic development is an important strategic concept of special economic zones,the paper selected Poyang Lake Ecological Economic Zone as a research area in Jiangxi province.Experience-based project "Poyang Lake Ecological Economic Zone land use on water pollution research" project,based on the accumulation of 30 years of hydrological,meteorological data,remote sensing of land use and environmental air quality measurement data for nearly 10 years,in order to remote sensing to maximize the development and use of these routine monitoring,hydrology,environmental monitoring data resources,this paper for the study of land use change an entry point for regional air quality,water quality and land "coupling"between changes in use,the original single study,conducted organic integration of the regional air quality change research focuses on the analysis of massive data collation from a variety of monitoring results and to identify the relevant laws,changes in water quality research focuses on the study area,the model building process analysis,regional Changes in land use comparative study focused on the application of object-oriented land use classification,although the focus of the three studies are different,but the results are to find their own characteristics and trends change,air pollution control through regional linkage,non-point source pollution.Through selected monitoring data in Nanchang City,analyzed three conventional air pollutant concentrations and API features every year,and change analysis conducted yearly precipitation pH value,through 1990-2012 visibility analysis found that visibility presented annually downward trend,visibility changed significantly from month to month,showed significant inverted v shape,through the concentration of urban ecology in the region between the four major comparative analysis of conventional pollutants,found that air pollution ecology in the region showed significant cumulative process synchronization,heavy pollution weather concentrated there,intra-regional interaction between urban agglomerations significant linkage to regional air pollution control in order to achieve the desired results.Selection for typical Changjiang basin change of water quality in the study area,SWAT model was used to simulate the water quality impacts of ammonia nitrogen,total phosphorus and high precision,the classification of Poyang Lake Lake Ecological Economic Zone in the image data,1983?2012 years of study area(Poyang Lake Changjiang River Basin,ecological economic zone,Nanchang City)land use pattern,draw vigorously returning farmland to forests and returning to the water method in Ecological Economic Zone in Poyang Lake was analyzed using the SWAT model and SPSS software,can reduce regional air pollution and non-point source pollution of water.