摘要
以甘肃省玛曲县和安西县为例,从草地生态系统服务价值变化角度探讨了退牧还草工程生态效益。结果表明,玛曲县亚高山草甸类草地禁牧区和休牧区较非工程区食物生产价值分别增加44.24和266.84元/hm2,总价值分别增加了610.5和3682.4元/hm2;沼泽草甸类草地禁牧区和休牧区较非工程区食物生产价值分别增加了152.85和63.13元/hm2,总价值分别增加了2172.0和897.1元/hm2。安西县低地盐生草甸草地禁牧区较非工程区食物生产价值增加了16.25元/hm2,总价值增加了176.5元/hm2;温性荒漠类草地禁牧区较非工程区食物生产价值增加了7.75元/hm2,总价值增加了170.5元/hm2。如果在玛曲县草地全部采取禁牧措施,生态效益将达到5.4亿元,采取休牧措施,生态效益将达到31.4亿元;安西县草地全部采取禁牧措施,生态效益将达到0.49亿元。
The ecological benefits of grassland restoration project were discussed from the viewpoint of ecosystem service value changes, using Maqu and Anxi County in Gansu province as examples. In Maqu County, food production service values of forbidden and rest grazing project areas of subalpine meadows increased 44.24 yuan/hm2 and 266.84 yuan/hm2 , total value increased 610.5 yuan/hm2 and 3 682.4 yuan/hm2, respectively. In swamp meadow, food production service values of the two areas increased 152.85 yuan/hm2 and 63.13 yuan/hm2; total value increased 2 172.0 yuan/hm2 and 897.1 in lowland halophytic meadows and desert grassland increased 16.25 yuan/hm2 and 7.75 yuan/hm2 , and total values increased by 176.5 yuan/hm2 and 170.5 yuan/hm2 , respectively. Therefore, ecological benefits of overall grazing prohibition and rest grazing in Maqu County would he 0.54×10^9 yuan and 3.14×10^9 yuan, respectively; while in Anxi County it will reach 0.49×10^8 yuan.
出处
《草业科学》
CAS
CSCD
2008年第12期35-40,共6页
Pratacultural Science
基金
中国气象局新技术推广项目(CMATG2007Z09)
甘肃省畜牧厅项目(甘退牧200301)
甘肃省气象局项目(2007-13)
干旱气象科学研究基金项目(ZAM200715)
关键词
退牧还草
生态效益
评价
玛曲县
安西县
restoring grassland from grazing
ecological benefits
assessment
Maqu County
AnxiCounty
