干旱区生态环境知识资源中心(Arid): 基于生态系统固碳的陕北大气CO

Arid

	基于生态系统固碳的陕北大气CO_2治理成本核算
其他题名	Dynamic estimation of the cost of atmospheric CO_2 treatment based on carbon fixation of ecosystem in northern Shaanxi
	张翀 1; 任志远 2
来源期刊	干旱区地理
ISSN	1000-6060
出版年	2016
卷号	39 期号:1 页码:122-129
中文摘要	基于2000-2012年的遥感数据和气象台站实测数据,利用光能利用模型对陕北地区植被净第一性生产力进行了测评,从而计算得到植被固碳价值量,进而估算出陕北各个县区CO_2治理成本,并采用Theil-Sen趋势分析其变化特征。结果表明:(1)2000-2012年陕北大气中超出35010~(-6)的CO_2、生态固碳与需要治理的CO_2的多年月均值分别为12.58、0.76和11.81 t·hm~(-2),月变化率分别为0.066 0、0.002 7和0.063 2 t·hm~(-2)·mon~(-1)。(2)在CO_2治理单位面积的平均成本核算中,森林、灌丛与草丛属于生态型植被,产生一定的经济效益,其他植被类型均属消耗型,其中投资成本由大到小依次为荒漠植被>草原>栽培植被>草甸。(3)空间上,由于不同地表覆盖固碳的差异性,陕北单位面积CO_2治理平均成本由南向北逐渐增大。陕北南部属于生态型,各县区产生一定的经济效益,陕北中北部地区属消耗型,分县区单位面积CO_2治理平均成本居高不下。(4)2000、2006和2012年陕北CO_2治理合计成本分别为3.4010~8、9.4210~8与18.1610~8元·a~(-1)。CO_2治理合计成本变化率由东向西、由东南向西北逐渐递增,陕北南部县区CO_2治理合计成本变化相对较慢,而陕北中北部的CO_2治理成本在极显著升高。
英文摘要	The photosynthesis of green plants can absorb carbon dioxide and release oxygen, which helps keep the atmosphere balance of CO_2 and O_2. Measuring the value of carbon fixation and oxygen release is very important for understanding the ecological system as well as its change. The cost of atmospheric CO_2 treatment and their dynamic changes were analyzed based on remote sensing and meteorological data in northern Shaanxi. Light energy utilization model was used to estimate Net Primary Productivity (NPP) with MODIS/NDVI data, and then NPP was converted to the amount of CO_2 fixation through photosynthesis equations. Finally, the values of CO_2 fixation and the least cost of atmospheric CO_2 treatment in northern Shaanxi ecosystem were computed by using forestation cost method. Results show as follows: (1) The cost of CO_2 treatment from high to low was: desert >steppe >cultivated vegetation >meadow >forest. Therein, forest, bushwood and grass belonged to ecological vegetation which could produce a certain economic benefit;while other vegetation belonged to consumptive vegetation. (2) Due to the otherness of different land cover, the mean cost of CO_2 treatment increased gradually from south to north part of northern Shaanxi, which is because that the vegetation in south part of northern Shaanxi belongs to the ecological type,while vegetation in north and central part of northern Shaanxi belongs to the consumptive type. (3) The change rate of total cost increased from east to west and from southeast to northwest. And the growth rate of southern part of northern Shaanxi is slower than that in north and central part of northern Shaanxi. The cost of atmospheric CO_2 treatment presents a significant difference between south and north region in northern Shaanxi, which is mainly due to the otherness of different land cover. South part of northern Shaanxi which belongs to semi-humid region has relatively high vegetation, therefore, the vegetation can not only fix more CO_2 but also can produce a certain economic benefit. However, the concentration of CO_2 showed a significant increase in north part of northern Shaanxi due to the development of energy industry and its processing industry in the ecologically vulnerable area.
中文关键词	固碳 ; 碳捕捉与封存 ; 成本核算 ; 陕北
英文关键词	NPP NPP carbon fixation carbon capture and storage cost accounting northern Shaanxi
语种	中文
国家	中国
收录类别	CSCD
WOS类目	REMOTE SENSING
WOS研究方向	Remote Sensing
CSCD记录号	CSCD:5630734
来源机构	陕西师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234223
作者单位	1.宝鸡文理学院, 陕西省灾害监测与机理模拟重点实验室, 宝鸡, 陕西 721013, 中国; 2.陕西师范大学旅游与环境学院, 西安, 陕西 710119, 中国
推荐引用方式 GB/T 7714	张翀,任志远. 基于生态系统固碳的陕北大气CO_2治理成本核算[J]. 陕西师范大学,2016,39(1):122-129.
APA	张翀,&任志远.(2016).基于生态系统固碳的陕北大气CO_2治理成本核算.干旱区地理,39(1),122-129.
MLA	张翀,et al."基于生态系统固碳的陕北大气CO_2治理成本核算".干旱区地理 39.1(2016):122-129.