摘要
按照草地综合顺序分类方法,利用天祝县及周边地区117个气象台站的资料和DEM分区修正,将天祝县草地分为寒温微干山地草原、寒温微润山地草甸草原、寒温湿润山地草甸、微温微干温带典型草原、微温微润草甸草原和微温湿润森林草原6类。同时考虑土地利用方式和草地退化程度,结合天祝县实际的草地资源分布图和草地的不同等级,利用地理信息系统软件(ArcGIS)工具,对天祝县草地生态系统服务价值进行估算,结果表明:天祝县草地的生态系统服务总价值为5.685亿元/年,其中微温微润草甸草原贡献率最高,达31.52%,寒温微干山地草原草地生态系统服务价值最低,贡献率为8.45%。
Based on integrated orderly classification system of grassland, and by using data from 117 meteorological stations, the grassland in Tianzhu County could be classified into 6 classes, including cold temperate-semiarid mountainous steppe, cold temperate-suhhumid mountainous meadow steppe, cold temperate-humid mountainous meadow, cool temperate-semiarid temperate typical steppe, cool temperate-subhumid meadow steppe and cool temperate-humid forest steppe. At the same time, the ecosystem service value of grassland was evaluated according to land-use type, degradation level and production grade of grassland. The results showed that the total ecosystem service value of grassland in Tianzhu was 568.5 millions RMB Yuan per year, in which, the contribution proportion of temperate-subhumid meadow steppe was the highest （31. 52%）, and that of cold temperate-semiarid mountainous steppe was the lowest （8.45%）.
出处
《中国草地学报》
CSCD
北大核心
2009年第5期23-29,共7页
Chinese Journal of Grassland
基金
甘肃省科技支撑计划--农业计划(0804NKCA071)项目
草业生态系统教育部省部共建重点实验室资助项目
关键词
天祝县
草地综合顺序分类
生态系统服务价值
Tianzhu county
Integrated orderly classification system of grassland
Ecosystem service value
