Assessment Of The Climate Regulation Service In Qinghai Lakebasin Based On 3S Technology

On the basis of most current research progressin the climate regulation service value by both domestic and oversea researchers, and by means of field investigation, sample collection, laboratory analysis, questionnaire, remote sensingimage interpretation and other ways to get a lot of first-hand research needed reliable data. With the "3S" technology(geographic information systems, remote sensing and global positioning system) and statistical methods, the use of alternative energy method, the cost of a variety of ecological economics substitution method, the carbon tax and industrial oxygen method and boundary damage cost method, construction climate regulation service evaluation system of the alpine ecological environment in QinghaiLakeBasin.The evaluation methods and models were established and assessed to study the climate regulation service of this area, reveal the dynamic variation.(1) The value of the climate regulation service in Qinghai Lake basin showed a decrease trend from southeast to northwest, high-value area are mainly distributed in the eastern and southeastern regions of Qinghai Lake, Tianjun County and vast areas of the north west is the low-value area.(2) The total values of climate regulation in QinghaiLake basin varied from 269.28×109 RMB/a to 381.29×109 RMB/a, with a mean of 318.52×109 RMB/a. Among them, humidity regulation value was the highest with a mean of 30.81×1010 RMB/a, then releasing oxygen value was 64.41×108 RMB/a, carbon sequestration was 28.87×108 RMB/a, the soil carbon accumulation value was 8.29×108 RMB/a, temperature regulation value was the lowest by 2.64×108 RMB/a. Humidity regulation value quantitative highlighting its importance of the climate regulation service in the region and around. Plants releasing oxygen value highlighting the role of ecosystems in the region of QinghaiLake basin plants in oxygen supply. Among different ecosystems, alpine meadow had the maximumof climate regulation value from 126.2×109 RMB/a to 175.43×109 RMB/a, with an average of 146.51×109 RMB/a; followed by thelake, ranging from 38.55×109 RMB/a to 55.80×109 RMB/a, with the average of 47.29×109 RMB/a.(3) Total values of climate regulation in Qinghai Lake basin ecosystems showed firstly reducing and then increasing trend, showing an increasing trend after 2000, the overall rate of 25.48×109 RMB/a, with a total increase of 25.48×109 RMB by 2010. However, plants carbon sequestration and releasing oxygen values increased gradually, the value ofsoil carbonaccumulationshowed decrease trend after thefirst increase. Among different ecosystems, the increase in the total value of climate regulation in alpine meadow was the largest, with an increase of 11.91×109 RMB,followed bysparsevegetation,alpineswamp andwarm steppe, with an increase of5.81×109 RMB, 4.18 ×109 RMB and2.51×109 RMB, respectively.