| 湿地生态系统的服务功能与价值(摘要) |
| |
| 引用本文： | 崔丽鹃.湿地生态系统的服务功能与价值(摘要)[J].四川林业科技,2005,26(1):42-42. |
| |
| 作者姓名： | 崔丽鹃 |
| |
| 作者单位： | 中国林业科学研究院,北京,100091 |
| |
| 摘 要： | 湿地是一种非常重要的自然生态系统，湿地生态系统的服务功能多样、服务价值巨大，对湿地生态系统服务功能与价值的研究已经成为湿地科学研究中的一项重要内容。湿地生态系统在界面、景观、生物类群和生物地球化学循环等几个方面具有不同于其他生态系统的特征。在众多的生态功能中，湿地生态系统的维持生物多样性、固定CO2和调节区域气候、降解污染和净化水质、减缓径流和蓄洪防旱、水资源功能、产品资源、社会功能等7个方面的功能尤其突出。生态系统服务价值评价的方法主要有3种，即能值分析法、物质量评价法和价值量评价法，这3种评价方法各适合于开展的不同的生态系统评价。其中价值的货币化评价最为直观，也更容易被大众理解和接受，同时这种评价结果可以进行不同价值为33．3万亿美元，约等于全球GNP的1．8倍，其中湿地生态系统的年价值为4、9万亿关元，约占全部生态系统的14．7％。中国的学者陈仲新、张新时的研究结果，中国生态系统的年总价值7．8万亿元，其中陆地生态系统5．6万亿元，所计算的生态系统中湿地生态系统的年价值2.7万亿元，居各种生态系统价值的首位。根据逐项生态功能的评估，最后得到扎龙湿地的生态系统的年价值为156亿元人民币。目前湿地生态系统服务价值评价在评价方法和湿地生态过程两个方面需要更深入的研究。
|
| 关 键 词： | 评价方法 生态过程 效益 |
| 文章编号： | 1003-5508(2005)01-0042-01 |
Service Function and Value of Wetland Eco-system |
| |
| CUI Li-juan.Service Function and Value of Wetland Eco-system[J].Journal of Sichuan Forestry Science and Technology,2005,26(1):42-42. |
| |
| Authors: | CUI Li-juan |
| |
| Abstract: | Wetland is a very important natural ecosystem with various service functions and values.It has become an important content of wetland science research to study these functions and values.Wetland ecosystem has its own particular characteristics in the interface,landscape,bio-population and biogeochemical cycle.Among the ecological functions,biodiversity maintaining,CO_2 fixation and region climate comfort,pollution degradation and water decontamination,runoff slowdown,flood and drought control,water resource,biological production resource and social benefits are superior to other functions.There are three main methods to evaluate the value of wetland ecosystem services such as energy value analysis method,physical assessment method and value assessment method.They are respectively applied to evaluating different ecosystems' service.Of the three methods,the value assessment method is the most directly and easily understood and accepted by the public.At the same time,the outputs from this method can be compared with the different types of values.According to the research of Robert Costanza who is an economic ecologist in U.S.A.,the annual value of the world ecosystem services is 33.3 trillion dollars.It is about 1.8 times of the global GNP.The annual value of the wetland ecosystem is 4.9 trillion dollars which is 14.7% of the whole (ecosystem's) value.According to the researches of Chen Zhongxin and Zhang Xinshi,the annual service values of ecosystem,land ecosystem and wetland ecosystem in China are respectively 7.8,5.6 and 2.7 trillion yuan.The service value of wetland is premier in the all ecosystems.By evaluating each function of Zhalong wetland ecosystem,the total monetary value is 156 hundred million yuan.Further researches should be made on assessment method and wetland ecological process in the evaluation of wetland ecosystem services. |
| |
| Keywords: | Assessment method ecological process benefit |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
