The Study Of Ecosystem Services Value In Duolun County Of Inner Mongolia

Used of TM image data as basic data sources in1987,1995,2000,2005and2010of Duolun County, Inner Mongolia. According to localconditions and paper needs， land use is divided into six classes thatinclude cultivated land、grassland、woodland, water area、urban land useand unused land，got land use of Duolun County in each year by usingGIS technology. Find out, woodland area increased a great lot and unusedland area decreased a great lot during1987to2010in Duolun County;Annual change rate of woodland area is the relatively largest, secondly itis water area and unused land, cultivated land is the least.Estimated ecosystem services value of Duolun County in each year,used the method of Costanza while according to land use, shown that areaof grain of Duolun County, single scale of the evaluation method ofChina terrestrial ecosystem services value by Xie Gaodi. The resultsshowed that the ecosystem services value of Duolun County had firstdecreased and then increased tendency. Among, the ecosystem servicesvalue is the lowest in1995; in23years increase by2.513billion. At theend of the study of the ecosystem service value nearly twice for the earlystage of research. By calculating the ecosystem services value coefficientof sensitive of the Duolun County, each year ecosystem services value ofland use type is less than1. The results Indicates the ecosystem servicesvalue of Duolun County lacks flexibility on its service value index.By analyzed variation of the ecosystem service value of DuolunCounty in different environment and space. By divided the slope into≤2°、2°-6°、6°-15°、15°-25°and>25°, and analyzed the average ecosystemservice value of each slope. The results show that average ecosystemservice value of Duolun County was first increased and then decreasedwith increasing slope during1987to2010and the average ecosystemservice value is the highest in15°-25°. It was first decreased then increased with increasing slope on2010and the lowest in15°-25°.Terrain of Duolun County is divided into five aspects, which are plains,the northern slope, eastern slope, southern slope and western slope, learnthat smaller differences in the average ecosystem services value betweenthe various aspect, but the northern slope of the ecosystem service valueis relatively high. By laboring the changes of the Duolun ecosystemservice value in various soil types that the ecosystem service valuechanges can be divided into two phases that are1995-2000and2005-2010with the soil. The average ecosystem service value ofchernozem and marsh soil is highest and wind sand is lower during1995to2000; the lower average ecosystem service value on chernozem andhighest on gray brown soil and saline soil during2005to2010. Eachvillage committee ecosystem service value changes tended to increase inDuolun County. Comparison administrative region clear that the lowestvalue of the average ecosystem service value is Da Beigou Town and thehighest is Da Hekou Town. The seat of government of Duolun County forthe center outward to draw concentric circles, while between adjacentconcentric circles of radius difference of10km. The results indicate thatthe average ecosystem service value has first increased and thendecreased trend from the center outward. The highest average ecosystemservice value region is30-40km.By using Grey GM (1,1) prediction model forecasted the ecosystemservice value of the next30years in Duolun County. Used three modelsto examine the feasibility of the prediction model, and this model ispracticable. Forecast results are the ecosystem service value of DuolunCounty continues growth trend and the ecosystem service value is14.73billion in2030.