干旱区生态环境知识资源中心(Arid): 中国草地生态系统服务功能价值遥感估算研究

Arid

	中国草地生态系统服务功能价值遥感估算研究
其他题名	Estimation of Grassland Ecosystem Services Value of China Using Remote Sensing Data
	姜立鹏 1; 覃志豪 1; 谢雯 2; 王瑞杰 1; 徐斌 3; 卢琦4
ISSN	1000-3037
出版年	2007
卷号	22 期号:2 页码:161-170
中文摘要	草地生态系统是我国陆地上面积最大的生态系统，不仅生产大量的产品，而且提供巨大的生态服务功能。利用遥感技术估算草地生态系统服务价值，具有廉价、动态、快速、范围广等优点，并可解决传统方法所不能解决的空间异质性问题。论文考虑有机物质生产、维持CO_2和O_2平衡、营养物质循环、对环境污染的净化作用、土壤侵蚀控制和涵养水源等主要服务功能，提出了一个基于净初级生产力（NPP）和植被覆盖率的草地生态系统服务价值估算方法，并介绍了从MODIS数据反演NPP和植被覆盖率的方法。对2003年我国草地生态系统服务价值的估算结果表明，我国草地生态系统总服务价值达17050．2510~8元，平均48．4410~4元／km~2，是草地生产收益的19倍；不同类型的草地生态系统单位面积服务价值空间差异悬殊，从5．6210~4元／km^2变化到99．010~4元／km~2以上。
英文摘要	Grassland ecosystem is a very important terrestrial ecosystem in China.It provides not only a large number of economic products but also many ecological services for mankind.Estimation of the grassland ecosystem services values is urgently required for administration of the precious natural resource.This paper intends to propose a practical method to estimate grassland ecosystem services value using remote sensing data.First of all,the relationship between the value of organic matter production,O_2 released and CO_2 fixed,nutrient recycle,and environmental pollution cleaning and the net primary productivity(NPP)was established using various methods such as market value,substitution,shadow price,opportunity cost.Consequently,the relationship between the value of soil erosion control and the quantity of soil conservation,which can be calculated from vegetation coverage fraction,was also constructed.The value of water conservation function was calculated by vegetation coverage fraction.Then,a net primary productivity(NPP)model of grassland based on photosynthesis efficiency model was proposed,in which all the parameters were retrieved from EOS/MODIS data.The method of determination of vegetation coverage fraction was also introduced.Finally,the value of grassland ecosystem services of China in 2003 was computed using the proposed method.Our results indicated that spatial variation of the ecosystem services value per unit area was consistent with the distribution of grassland types.The service value per unit area varied greatly with different grassland types.Shrub-meadow with sparse trees had the highest services value of 990259yuan/km~2(RMB).The service value of upland meadow is also high up to 968586yuan/km~2(RMB).Alpine desert steppe had the lowest services value of 56202yuan/km~2(RMB).Alpine desert also had a low services value of 89952yuan/km~2(RMB).Total service values of Chinese grassland ecosystem in 2003 was 1.7050310~(12)yuan(RMB).Different grassland types had different total services values depending on their areas.Alpine meadow had the largest amount of total value of 4.0599810~(11)yuan,accounting for 23.81% of the total services values of the entire Chinese grassland ecosystem.The services value was also varied with different ecosystem functions.The released O_2 and the fixed CO_2 contributed the highest percentage to the total service values being 54.06%.The contribution of organic matter production,soil erosion control,nutrient recycle,and water storage was 19.66%,14.28%,5.63% and 4.20%,respectively.
中文关键词	草地生态系统 ; 服务价值 ; 遥感
英文关键词	NPP MODIS grassland ecosystem services value remote sensing NPP MODIS
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ECONOMICS
WOS研究方向	Business & Economics
CSCD记录号	CSCD:2859452
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/221920
作者单位	1.南京大学国际地球系统科学研究所, 南京, 江苏 210093, 中国; 2.南京大学城市与资源学系, 南京, 江苏 210093, 中国; 3.中国农业科学院农业资源与农业区划研究所, 北京 100081, 中国; 4.中国林业科学院, 北京 100091, 中国
推荐引用方式 GB/T 7714	姜立鹏,覃志豪,谢雯,等. 中国草地生态系统服务功能价值遥感估算研究[J],2007,22(2):161-170.
APA	姜立鹏,覃志豪,谢雯,王瑞杰,徐斌,&卢琦.(2007).中国草地生态系统服务功能价值遥感估算研究.,22(2),161-170.
MLA	姜立鹏,et al."中国草地生态系统服务功能价值遥感估算研究".22.2(2007):161-170.