Rule Of Temporal-spatial Changes Of Ecosystem Service In Longitudinal Range-Gorge Region, Southwest Of China

Not only is LRGR(Longitudinal Range-Gorge Region) the sole corridor for floraexchanging from China, even southeast of Eurasia to the Equator, but also is the flourishingregion where China carry out the development strategy for GMS and Sino-ASEAN economycooperation. The topography and geomorphy is very sophisticated in LRGR. The temperatureand precipitation conditions are feasible to vegetation's growth and the density of populationis mild. The original ecosystem is well saved and the vegetation coverage is very high whichcauses the large vegetation productivity. The ecosystem fragility is very high and the status ofecological security is very important.Based on the formerly results, we fix on the research methods of ecosystem servicewhich is suited the character of LRGR. The regulative coefficient is confirmed on the basis oflanduse type, net primary productivity and vegetation coverage by means of remote sensing.The ecosystem service values in 1981 and 2001 for this region are educed with it. The spatialrule and change character of ecosystem service is analyzed on regional and county scale. Thethesis compares the characters of ecosystem service in different district, main drainage basinand different segment in it, confirms the rules that the ecosystem service value is higher insouthern area than northern area and different characters along river and ridge. The ecosystemservice value is decreased regularly with the increasing of population density and elevationby compared analysis. The results of the ecosystem service values in 1981 and 2001 shows arule that ecosystem service value is steady for whole researched region and fluctuate in localarea in LRGR. In the last section, we generalize the whole thesis, discuss the significanceaspects and put forward the problem of the thesis.