| 陕西省耕地利用碳源/汇时空差异分析 |
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| 引用本文： | 王桂波,南灵.陕西省耕地利用碳源/汇时空差异分析[J].中国农学通报,2012,28(2):245-249. |
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| 作者姓名： | 王桂波 南灵 |
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| 作者单位： | 西北农林科技大学经济管理学院,陕西杨凌,712100 |
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| 摘 要： | 为了定量测度陕西省耕地利用的碳源/汇情况,为陕西省土地利用碳减排工作提供参考,分别从时间和空间上对陕西省2000—2007年耕地利用碳吸收量、碳排放量进行测算,并利用耕地碳汇基尼系数进行分析。结果表明:(1)2000—2007年陕西省耕地利用整体上表现为碳汇,年均碳汇量为815.83万t;(2)研究期内陕西全省耕地碳汇量呈关中最大,陕南次之,陕北最小的分布格局;(3)对耕地碳汇基尼系数按区域分解表明,陕西省不仅整体上表现为耕地碳汇能力的增强,且3大区域内部也表现为碳汇能力的增强,耕地利用存在一定的碳汇优势,但与沿海地区相比还存在较大差距。
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| 关 键 词： | 耕地 碳源/汇 基尼系数 陕西省 |
| 收稿时间： | 2011/5/12 0:00:00 |
| 修稿时间： | 2011/6/17 0:00:00 |
Research on the Spatio-temporal Difference of Carbon Source/Sink of Arable Land Resource Use in Shaanxi Province |
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| Wang Guibo
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Nan Ling.Research on the Spatio-temporal Difference of Carbon Source/Sink of Arable Land Resource Use in Shaanxi Province[J].Chinese Agricultural Science Bulletin,2012,28(2):245-249. |
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| Authors: | Wang Guibo Nan Ling |
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| Institution: | (College of Economics and Management, Northwest A＆F University, Yangling Shaanxi 712100) |
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| Abstract: | In order to quantitatively measure the carbon source/sink ability of arable land resource use in Shaanxi Province, so as to provide references for the work to reduce carbon emissions in land utilization, the authors utilized data of Shaanxi Province from 2000 to 2007 to calculate the quantity of carbon absorption and emission of arable land resource use from temporal and spatial perspectives, the authors also calculated the Gini coefficient of carbon sink of arable land. The results showed that： （1）overall from 2000 to 2007 the arable land resource in Shaanxi Province acts as carbon sink and the average annual carbon sink amount was 8.16 million tons; （2）during the study period, the carbon sink of arable land showed the highest level in Guanzhong region, and a relatively high level in Shannan region, Shanbei region showed the lowest level; （3）the components of the Gini coefficient of carbon sink of arable land in different regions showed that the carbon absorbing ability of the arable land increases in both Shaanxi Province and its three regions, with the carbon sink of arable land resource use there was some advantage in Shaanxi Province, but compared with coastal areas, it still had a large gap. |
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| Keywords: | arable land carbon source/sink Gini coefficient Shaanxi Province |
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