Tieling Lotus Lake National Wetland Park Value Assessment Of Ecosystem Services Functions

Human activities in cities are highly frequent,and the weakening of ecological services of natural resources will lead to the drastic deterioration of various environmental indicators.Wetland ecosystem plays an important role in ecological regulation.In order to ensure the sustainable development of society,this paper combines ecological theory,economics,statistics and other analytical techniques to make the economic valuation of the service value of the Lotus Lake wetland ecosystem,so that people are more intuitively aware of the importance of the ecological function of Lotus Lake Wetland Park.There are many evaluation methods of ecosystem service value,this paper summarizes the existing evaluation methods,combined with the existing research situation at home and abroad,makes an appropriate choice of the wetland ecosystem function evaluation method,according to the type of ecological benefit and expression of the ecosystem service function of the Lotus Lake wetland,determines the type of ecological service function of lotus lake wetland,and determines the value evaluation system of the ecosystem service value for different service function types,and determines the value evaluation system of the wetland service function of Tieling Lotus Lake.Based on the practical sampling survey,literature review,and the monitoring data of Lotus Lake Wetlands,the value estimation of the total value of various service functions of The Lotus Lake Wetlands in 2018 was estimated by studying and screening out the appropriate evaluation methods for the functional value of ecosystem services,such as market value method,shadow engineering method,carbon tax law,tourism value method,ecological value method and results reference method.The main findings are as follows:(1)Based on the field observation data of lotus lake national wetland park and the reconciliation of landsat OLI image(spatial resolution 15m)data information for the August 2018 study area,the study area is divided into seven land-use types,including permanent rivers,flood plain wetlands,herb marshes,forest marshes,reservoir ponds,rice fields,and woodlands.Among them 208.97 hm~2 permanent rivers,116.37hm~2 flood plain wetlands,23.7 hm~2 herb marshes,0.26 hm~2 forest marshes,88.21 hm~2 ponds,94.54 hm~2rice fields,169.1 hm~2 woodland.(2)The total value of the ecosystem service function of Tieling Lotus Lake Wetland is1167.60 x 10~6yuan in 2018 is 150.32 x 10~4 yuan/hm~2·a,of which the ecological service function value of four service types is:the adjustment service function(715.37 x 10~6 yuan),mainly includes the main Climate regulation(612.96 x 10~6 yuan),water conservation(78.29 x 10~6 yuan),water purification(22.52 x 10~6 yuan),carbon sequestration oxygen(17.93 x 10~6 yuan);cultural services functions,mainly including entertainment and education(54 x 10~6 yuan).(3)The percentage of total value of ecological service functions ranged from large to small:climate regulation(52.5%),water conservation(6.71%),water purification(1.93%),carbon-sequestration(1.54%);(4)The ecological service function value of different land types in the area of Lotus Lake Wetlands varies from large to small:woodland marshes(212.81 x 10~4 yuan/hm~2.a),herb marshes(212.29 x 10~4 yuan/hm~2·a),artificial wetlands(211.50 x 10~4 yuan/hm~2·a),permanent rivers(203.71 x 10~4 yuan/hm~2·a),flood plain wetlands(113.58 x 10~4 yuan/hm~2·a),woodland(98.98 x 10~4 yuan/hm~2·a).Finally,the value assessment of the ecosystem service function of Tieling Lotus Lake National Wetland Park in 2018 and the suggestions of strengthening ecological monitoring and comprehensive management of water pollution for the sustainable development and rational development and utilization of the ecosystem of Tieling Lotus Lake National Wetland Park,and the awareness of the protection and participation of urban wetlands in the city.