Ecosystem services value of wetland in Suzhou Taihu Lake

Based on a comprehensive analysis on various classifications of natural resource values,this paper summarizes an ecological services system of constructed wetland(CW) ecosystems for the accounting of ecological economic value.With the research,the wetland ecosystem services can be classified into six categories,that is waste treatment,food and material production,water supply,gas regulations,disturbance and water regulations,habitat and refuge provision.For decision making in terms of environmental economics for wetland construction,ecosystem services value for the wetland in Suzhou Taihu Lake National Tourist and Holiday Resort is accounted for 7,088,769 USD/yr through Environmental Economics Analysis.Ecosystem services value of waste treatment is 825,000 USD/yr,that of food and material production is 1,430 USD/yr,that of water supply is 4,752,000 USD/yr,that of gas regulation is 2,251USD/yr,that of disturbance and water regulations is 1,3721 USD/yr,and that of habitat and refuge provision value is 1,494,367 USD/yr.The ecosystem services values of a pilot constructed wetland in Suzhou are compared with those of other wetlands as a mean and of a typical human-interfered wetland in Wenzhou of China.Results show that in both finite and infinite time horizons considered,the wetland in Suzhou Taihu Lake National Tourist and Holiday Resort has the largest services value.This paper analyzes all the probability that may weaken the value of the Suzhou Taihu Wetland in order to provide some advices for the wetland protection.

苏州太湖滨湿地公园生态建设

文章在分析度假区生态环境基础上,指出了苏州太湖湖滨湿地公园建设目标与原则;在加强湿地生态保育区、物种繁育区、生态展示与游览区、生态控制区和管理服务区建设的同时,应建立湿地生态定位监测站、制定环境污染防治措施和强化湿地生态管理,以期充分发挥湿地的生态、社会和经济效益。

苏州太湖湖滨土壤中营养盐的垂直分布特征

为了考察湿地建设对太湖湖滨环境的生态修复效应,作者在苏州太湖湖滨选取了4个经过湿地修复的土壤和2个未修复的湖滨土壤进行对照研究。对不同深度(0~10 cm,10~20 cm,20~40 cm,40~60 cm)土壤中的土壤有机质(SOM)、总氮(TN)和总磷(TP)等理化性质进行分析。苏州太湖湖滨湿地土壤的pH值主要为中性;湿地土壤中TN、TP和SOM含量随土壤深度增加而降低;已修复湿地土壤中TN、TP、SOM的含量低于未修复土壤;某水产养殖场附近土壤中TN、TP、SOM含量均明显高于其它采样点。太湖湖滨湿地的建设有效地净化了湖滨土壤,也显著美化了苏州太湖湖滨带的生态环境。

苏州太湖三山岛国家湿地公园种子植物资源调查

[目的]详细了解苏州太湖三山岛国家湿地公园植物种类多样性。[方法]采用野外全面踏查、拍照、现场采样与实验室鉴定相结合的方法,调查了苏州太湖三山岛国家湿地公园种子植物资源。[结果]该地区主要有种子植物351种,分属107科259属。[结论]该地区是苏州乡土植物种子资源的一个脆弱的保存基地。有关部门必须强化对湿地旅游活动的监管以及对外来引入物种的监管和繁育研究,以更好地保护该地区的生物多样性。