Evaluation of Ecological Environment Quality in Qilian Mountain National Nature Reserve Based on GEE Cloud Computing
In order to objectively evaluate the ecological environment quality of Qilian Mountain National Nature Reserve,Google Earth Engine MODIS datasets from the year of 2000,2005,2010,2015 and 2020 were selected,it is dynamically monitored by constructing the remote sensing ecological index(RSEI).The results show that:Firstly of all,in terms of time,the ecological environment in the protected area has obviously deteriorated and then slightly improved later.Precisely,from 2000 to 2010,the average RSEI decreased from 0.56 to 0.43,which related to the ecological environment quality showed a deteriorating trend;Besides,from 2010 to 2020,the average RSEI climbed to 0.47 from 0.43,and the ecological environment quality showed a overall trend of improvement.Secondly,in terms of space,the ecological environment quality in the protection areas from northwest to southeast was gradually promoted,the number of and the poor ecological environment areas and the much poorer ecological environment areas showed a trend of increasing at the first place,and then decreasing eventually;However,the number of medium ecological environment areas showed a continuous increase trend.In conclusion,the above results reflect that the regulation movement of the Qilian Mountains has got obvious achievements,but it is suggested that different protection and treatment measures should be taken appropriately according to the environmental quality level of the Qilian Mountains.
NETL
NSTL
万方数据
