新巴尔虎右旗草地生态系统的服务功能  

Evaluation on grassland ecosystem service of Xin Barag Youqi

作　　者：何晓蕾[1] 赵萌莉[1] 刘通[1] 王静[1] 希吉勒[1] 

机构地区：[1]内蒙古农业大学生态环境学院,内蒙古呼和浩特010018

出　　处：《草业科学》2013年第10期1656-1663,共8页Pratacultural Science

基　　金：国家自然基金(31070414;31170446)

摘　　要：草地生态系统为人类提供了生态功能和各种服务,但由于人为和自然的影响,草地退化导致的生态问题越来越突出,评价草地生态系统服务功能的价值,准确认识草地的生态价值,对于草地保护和经济决策具有重要意义。本研究通过野外测定和经济分析对新巴尔虎右旗草地生态系统服务功能价值进行了评估,结果表明,草地生态系统每年提供的服务总价值为200.69亿元·a-1,其中草产品生产价值7.89亿元·a-1,调节大气价值42.07亿元·a-1,涵养水源价值17.8亿元·a-1,土壤保持价值128.79亿元·a-1,营养物质循环价值2.51亿元·a-1,废弃物降解价值0.09亿元·a-1,休闲旅游价值1.54亿元·a-1。新巴尔虎右旗草地生态系统各项服务功能价值中,土壤保持价值>调节大气价值>涵养水源价值>草产品生产价值>营养物质循环价值>休闲旅游价值>废弃物降解价值。Grassland ecosystems provide human with ecological functions and services. However, due todual impact from human activities and natural factors, the ecological and economic problems triggered bygrassland degradation are becoming increasingly prominent. Evaluating the grassland ecosystem services issignificantly meaningful for grassland protection and decisionmaking in economics. The ecosystem servicesof Xin Barag Youqi grassland were firstly evaluated using multiple ecoeconomics methods. The resultshowed that the total value of the ecosystem services of Xin Barag Youqi grassland was about 200. 69×10^8 CNY · a^-1,among which, the value of hay production equaled 7. 89 ×10^8 CNY · a^-1,atmosphere regula-tion 4. 207×10^9 CNY · a^-1,water source conservation 1. 78 ×10^9 CNY · a^-1,soil conservation 1.287 9 ×10^10 CNY · a^-1,nutrient cycling 2. 51 ×10^8 CNY · a^-1,waste degradation 9 ×10^6 CNY · a^-11,recreation and culture 1. 54×10^8 CNY · a^—1. Functional value of ecosystem services is soil conservation〉atmosphere regulation〉water source conservation〉hay production〉nutrient cycling〉recreation and cultured waste degradation.

关 键 词：草地 生态系统服务功能 评估 

分 类 号：S812[农业科学—草业科学]