CAI Guang-peng,HAN Hui-qing,ZHANG Feng-tai,et al.Impacts of Land Use Change on the Vegetation Carbon Storage in Suiyang, Guizhou Province in the Karst area[J].Research of Soil and Water Conservation,2012,19(04):122-124,130.
喀斯特地区贵州省绥阳县土地利用/覆被变化对陆地植被碳储量的影响
- Title:
- Impacts of Land Use Change on the Vegetation Carbon Storage in Suiyang, Guizhou Province in the Karst area
- Keywords:
- RS&; GIS; karst area; land use; vegetation carbon storage
- 分类号:
- S714.2;P931.5
- 摘要:
- 土地利用/覆被变化是影响陆地生态系统碳储量变化的重要驱动因素。利用绥阳县2000年、2005年、2010年3期ETM/SPOT影像解译获得的2000—2010年土地利用变化数据，估算了该县土地利用变化对生态系统中植被碳储量的影响。结果表明：2000—2005年研究区耕地面积增加了22.87 hm2，林地、牧草地分别减少了15.78，8.28 hm2，植被碳储量2005年比2000年减少了2945.11 t；2005—2010年研究区耕地、牧草地分别减少26.28，4.09 hm2，林地增加29.07 hm2，植被碳储量2010年比2005年增加了1786.17 t。综上，该县植被碳储量总体呈减少趋势，且退耕还林还草、天然林保护工程和城镇建设用地增加等是影响该地区植被碳储量变化的重要因素。
- Abstract:
- Land use/cover change is the main driving factor for the change of ecosystem carbon storage. In this paper, impacts of land use change on the vegetation carbon storage in Suiyang County from 2000 to 2005 and from 2005 to 2010 was stuided based on land use maps of 2000, 2005, 2010, which were interpreted from the ETM/SPOT images. The conclusions were drawn as follows: The area of forestland and grassland decreased by 15.78 hm2 and 8.28 hm2, respectively, during 2000-2005. The area of cropland increased by 22.87 hm2 during 2000-2005, the vegetation carbon storage decreased by 2945.11 t during 2000-2005. The area of cropland and grassland decreased by 26.28 hm2 and 4.09 hm2, respectively, during 2005-2010. The area of forestland increased by 29.07 hm2 during 2005-2010. The vegetation carbon storage increased by 1786.17 t during 2005-2010. The results showed that the total vegetation carbon storage was a decline trend. Returning farmland to forestland, natural forest protection and urban construction were important factors conntribution to the vegetation carbon storage in this region.
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备注/Memo
收稿日期:2012-3-23;修回日期:2012-4-23
基金项目:国家社科基金（10XJY044）；贵州省科学技术基金（黔科合J字[2009]2030号）；贵州省教育厅青年基金（黔教2008060）
作者简介:蔡广鹏（1963- ），男，贵州贵阳人，讲师，硕士研究生，主要从事土地利用与规划方面的研究。E-mail：cgp0123@sina.com。