摘要
为探索中小尺度荒漠的生态系统服务,基于千年生态系统评估(MA)的评价体系和土地用地类型资料,并结合国内外现有的研究方法,对有明确边界的宁夏中卫沙坡头国家级自然保护区荒漠生态系统服务进行评估.结果表明,该区域2010年生态系统服务总价值为1.94亿元,其中直接价值即提供食物服务的价值约为12.9×106元;间接价值包括防风固沙、侵蚀控制、固碳释氧和阻滞尘埃,价值约为181.4×106元;各类服务价值由大到小的排序为:固碳释氧、侵蚀控制、提供食物、阻滞尘埃、防风固沙;荒漠生态系统服务价值的重要程度与一般认知存在差异,间接服务价值比直接服务价值高出很多.可为荒漠生态系统管理和生态恢复研究提供参考.
In order to investigate the desert ecosystem service of meso-and micro scale,this article evaluates the desert ecosystem service of Ningxia Shapoto National Nature Reserve of Zhongwei City which has distinct boundary combining with current domestic and overseas computing method,basing on the evaluation system of millennium ecosystem assessment（MA）and data of land types.The result shows that the total value of ecosystem service in 2010 is RMB 194 million in this area,of which the direct value-the service value of providing food is RMB 12.9×10^6;the indirect value,including wind prevention and sand fixation,erosion control,carbon fixation and oxygen release,and dust blocking,is 181.4×10^6;the service values in descending order are：carbon fixation and oxygen release,erosion control,food providing,environment purifying,wind prevention and sand fixation;There is difference between the importance of desert ecosystem service value and common acknowledge.The value of indirect service is higher than that of direct service.It can provide reference for the management of desert ecosystem and its restoration.
出处
《宁夏大学学报（自然科学版）》
CAS
2016年第1期106-111,共6页
Journal of Ningxia University(Natural Science Edition)
基金
环保公益性行业科研专项基金资助项目(201209034)
