若尔盖高原湿地生态系统服务价值动态  

Dynamic changes of Ruoergai Plateau wetland ecosystem service value

作　　者：张晓云[1,2,3] 吕宪国[1] 沈松平 

机构地区：[1]中国科学院东北地理与农业生态研究所湿地生态与环境重点实验室,长春130012 [2]国家林业局调查规划设计院,北京100714 [3]中国科学院研究生院,北京100049 [4]四川省遥感中心,成都610081

出　　处：《应用生态学报》2009年第5期1147-1152,共6页Chinese Journal of Applied Ecology

基　　金：国家重点基础研究计划项目(2005CB422005);全球环境基金项目(CPR/98/G32)资助.

摘　　要：基于1975、2006年若尔盖高原湿地的卫星遥感资料,应用生态系统服务价值评价方法,对1975—2006年间若尔盖高原湿地生态系统的物质产品生产价值、气体调节价值和蓄水价值动态进行了研究.结果表明:研究期间,若尔盖高原湿地生态系统三项服务价值总和由195.90亿元降至123.85亿元,其中,物质产品价值增加了3.02亿元,而气体调节和蓄水价值共减少了75.07亿元.研究区由物质产品增加带来的收益远小于由生态退化造成的损失;过度的放牧行为致使若尔盖高原湿地生物量减少、土壤结构变化,造成生态系统总服务价值和服务水平下降.Based on the satellite remote sensing data acquired in 1975 and 2006, and by using the assessment method of ecosystem service value, the dynamic changes of physical production value, gas regulation value, and water storage value of Ruoergai Plateau wetland ecosystem in 1975-2006 were studied. During study period, the total value of the three services decreased from 19.59 billion RMB Yuan to 12.38 billion Yuan RMB, among which, physical production value increased by 0. 302 billion RMB Yuan, while the gas regulation and water storage value decreased by 7. 507 billion RMB Yuan. The benefit from the increase of physical production was much less than the loss of ecosystem degradation. Overgrazing induced the biomass reduction in the decline of Ruoergai Plateau wetland ecosystem service value and soil deterioration, and service capacity.

关 键 词：若尔盖高原 湿地生态系统 生态系统服务价值 

分 类 号：X171.1[环境科学与工程—环境科学]