| 河北沽源草地生态系统服务功能价值分析 |
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| 引用本文： | 刘同海,吴新宏.河北沽源草地生态系统服务功能价值分析[J].河南科技大学学报(自然科学版),2012,33(2):52-56,7,8. |
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| 作者姓名： | 刘同海 吴新宏 |
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| 作者单位： | 1. 天津农学院计算机科学与信息工程系,天津,300384
2. 中国农业科学院草原研究所,内蒙古呼和浩特,010010 |
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| 基金项目： | 国家自然科学基金项目(70933004,30471226);国家级野外台站基金项目(NGEFS-09-04) |
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| 摘 要： | 利用遥感技术,采用改进的光能利用率模型反演植被净第一性生产力,并结合草地生态系统服务功能量化指标,利用碳税法、替代费用法等对河北省沽源县的草地生态服务功能具体指标价值进行测算。结果发现:研究区域草地生态系统服务功能总价值为63 500.57万元,其中,涵养水源价值较高,为36 304.84万元,占总价值的57.17%;其次为生产有机物,占21.75%;O2释放量为10.79%;CO2固定量为9.54%;营养物循环为0.75%。就各草地类型服务功能而言,温性草甸草原类生态系统服务价值在各项服务价值中均较高,合计达29 008.44万元,占总价值的45.68%。
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| 关 键 词： | 遥感 草地生态系统 服务功能价值 测算 |
Value Analysis of Grassland Ecosystem Services Function in Guvuan Countv of Hebei Province |
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| LIU Tong-Hai,WU Xin-Hong.Value Analysis of Grassland Ecosystem Services Function in Guvuan Countv of Hebei Province[J].Journal of Henan University of Science & Technology:Natural Science,2012,33(2):52-56,7,8. |
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| Authors: | LIU Tong-Hai WU Xin-Hong |
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| Institution: | 1.Department of Computer Science & Information Engineering,Tianjin Agricultural University,Tianjin 300384,China;2.Grassland Research Institute,Chinese Academy of Agricultural Sciences,Hohhot 010010,China) |
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| Abstract: | The quantification index estimation of grassland ecosystem services function in Guyuan county of Hebei province was carried out with data obtained from remote sensing.The plants net primary productivity （NPP） was backward inference with improved Carnegie-Ames-Stanford approach（CASA ）.Carbon tax, substituted expenses,and the grassland ecosystem services function quantification index are used in data processing.The total value of grassland ecosystem services function is 635 005 700 RMB.The value of water conservations is 363 048 380 RMB,and the proportion is 57.17%.Organic matter is 21.75%.Release of O2 is 10.79%,fixed amount of CO2 is 9.54%and nutrient cycle is 0.75%.The results show that the service value of temperate meadow steppe type is relatively higher,whose total value is 290 084 400 RMB and its proportion is 45.68%. |
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| Keywords: | Remote sensing Grassland ecosystems Service value Estimation |
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