Delineation of lakeside ecological buffer zone of plain river network——Taking Yuan Lake as an example
As the core of the Yangtze River Delta Green Integration Demonstration Zone and the junction lake between Suzhou and Shanghai,Yuan Lake has important geographical strategic significance.Through the current situation investigation and data collection,we measured the cross-section of the Badang River bridge,the inlet and outlet fluxes of Yuan Lake and the water quality of Yuan Lake,ArcGIS was used to interpret the remote sensing images and analyze the spatial statistics,and referred to the"Jiangsu Province River and Lake Ecological Buffer Zone Delimitation and Comprehensive Management and Control Technical Guide",we determine the ecological buffer zone delineation method based on the protection objectives of the water body,delineate the ecological buffer zones of Yuan Lake,and put forward the suggestions of restoration.The results show that the total length of the lakeshore zone in Yuan Lake is 15 315 m,of which 30%is ecological protection type(well-vegetated type);70%is ecological restoration type(farmland type,town type,village type and estuary type);The width of the ecological buffer zone in Yuan Lake ranges from 7～993 m,with an area of 1.22 km2.On the basis of delineating the ecological buffer zone in Yuan Lake,we identify the main areas for restoration,and put forward the following recommendations in five aspects based on the delineation of the Yuan Lake ecological buffer zone,the main restoration areas were identified,and targeted ecological restoration measures were proposed from five aspects,which can provide technical support for ecological restoration in this area.
NETL
NSTL
万方数据
