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| Study on function and conservation of wetlands ecosystem in Sanjiangyuan region |
| LIU Min-chao1,3, LI Di-qiang1, WEN Yan-mao2 |
| 1. Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing 100091; 2. Department of Environmental Science, Sun Yat-sen Universitv, GuanqZhou 5l0275; 3. Guangdong Ocean University, Zhanjiang 524088, China |
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Abstract The structure and function of wetland ecosystem in Sanjiangyuan region are analyzed based on investigation data.The results indicate that the value of wetlands ecosystem is 2.10×1011 YuanRMB·a-1 and is 62.07% of the total value of ecosystem of Sanjiangyuan region.The value of waste treatment,water conservation and climate regulation is 6.40×1010 YuanRMB·a-1、5.79×1010 YuanRMB·a-1 and 4.90×1010 YuanRMB·a-1,respectively and accounts for 30.55%、27.61% and 23.39% of the total value of wetlands ecosystem,respectively.There are some other services such as biological diversity,soil formation and erosion control,gas regulation,food and raw materials,recreation and culture.In addition,Measures on reasonable utilization and conservation are put forward on the basis of degradation mechanism and problem of wetlands ecosystem in Sanjiangyuan region.
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Received: 25 February 2006
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