| 土地覆被变化对陆地碳循环的影响—以黄河三角洲河口地区为例 |
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| 引用本文： | 王绍强,许珺,周成虎.土地覆被变化对陆地碳循环的影响—以黄河三角洲河口地区为例[J].遥感学报,2001,5(2):142-148. |
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| 作者姓名： | 王绍强 许珺 周成虎 |
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| 作者单位： | 中国科学院地理科学与资源研究所 |
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| 基金项目： | 中国科学院“九五”重大A类项目(KZ95T-03-02-04)及国家重点科技攻关专题(96-911-01-01)。 |
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| 摘 要： | 土地利用/土地覆被变化是全球变化研究的重点，是影响陆地碳循环的一个重要因子。该文对黄河三角洲河口地区1992年和1996年9月份的TM影像进行非监督分类，做出该地区土地覆被类型分布图，以及估算土地覆被类型的变化面积，计算结果显示1992年该研究地区植被碳库和土壤碳库分别为11.43×10
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| 关 键 词： | 黄河三角洲 土地覆被变化 碳循环 土地遥感 遥感影像 土地利用 |
| 文章编号： | 1007-4619(2001)02-0142-07 |
| 收稿时间： | 8/4/1999 12:00:00 AM |
| 修稿时间： | 1999年8月4日 |
The Effect of Land Cover Change on Carbon Cycle: A case Study in the Estuary of Yellow River Delta |
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| WANG Shao-qiang,XU Jun and ZHOU Cheng-hu.The Effect of Land Cover Change on Carbon Cycle: A case Study in the Estuary of Yellow River Delta[J].Journal of Remote Sensing,2001,5(2):142-148. |
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| Authors: | WANG Shao-qiang XU Jun and ZHOU Cheng-hu |
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| Institution: | LREIS Institute of Geography,CAS,Beijing 100101,China;LREIS Institute of Geography,CAS,Beijing 100101,China;LREIS Institute of Geography,CAS,Beijing 100101,China |
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| Abstract: | Land cover change is a important effect on carbon cycle. In order to estimate changes in carbon pools and
fluxes to the atmosphere, we used LandsatTMdata of 1992 and 1996 to calculate the extent of different land cover types
and their change to each other in the estuary area ofYellowRiver delta. Image processing and unsupervised classification
allowed the production of accurate land covermaps of 1992 and 1996, and then the changeswere detected. Estimation of
carbon pools and fluxes to the atmosphere was carried out using the results of Landsat image analysis and published data
about carbon stocks in vegetation and soil. The results showed that the vegetation carbon reserveswas 11.43×105t, the
soil carbon reserves was 7.24×106t in 1992, while the area of forest increased 146.76×102hm2, and the vegetation
carbon reserves increased 7.43×105t during the four years from 1992 to 1996. So the land cover change lead to an in-
creasing in carbon reserves in this area. It is a carbon pools in the global change progress. |
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| Keywords: | Yellow River delta land cover change carbon cycle |
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