Carbon sequestration potential of the stands under the Grain for Green Program in Yunnan Province, China
Carbon sequestration potential of the stands under the Grain for Green Program in Yunnan Province, China
复制标题
DOI：
10.1016/j.foreco.2008.07.010
复制
发表时间：
2009-06-30
影响因子：
3.7
通讯作者：
Wan, Chengbin
中科院分区：
文献类型：
--
作者：
Chen, Xiangang;Zhang, Xiaoquan;Wan, Chengbin
采用经验曲线和因子分析方法，对退耕还林（绿色工程）重点目标省份之一的云南省生物量和土壤有机质的固碳潜力进行了估算。收集了2000-2007年的树种种植面积，并对2008 - 2010年的GGP林分年种植面积和收获方案进行了四种方案的规划。根据国家森林资源清查中云南省现有种植园的生长数据，建立了不同树种的经验生长曲线，并结合基本密度、生物量扩展因子和碳组分估算了树木生物量库中的碳储量。引入经验因子估算GGP下土壤有机碳储量的变化。结果表明，到2010年、2020年、2030年、2040年和2050年，云南省退耕还林林的碳储量将分别增加12.474-12.608 TgC、33.016-35.161 TgC、38.119-47.100 TgC、43.057-53.626 TgC和49.918-56.621 TgC。GGP林分的年碳储量变化将在2013年达到2.342-2.536 TgC的峰值，随后逐渐下降。20世纪90年代云南省森林生态系统潜在固碳量占森林生态系统碳储量的10.82-12.27%。(C)2008 Elsevier B. V.保留所有权利。
The carbon sequestration potential in living biomass and soil organic matter under the Grain for Green Program (GGP) in Yunnan Province, one of the most important target provinces of the GGP in China, was estimated in this paper using empirical curves and factors. The area of tree species planted during 2000-2007 was collected, and four scenarios for the annual area of GGP-stands to be planted during 20082010 and harvest options were schemed. Empirical growth curves for different tree species were developed based on data about the growth of existing plantation in Yunnan Province from National Forestry Inventory, and were used for the estimation of the carbon stocks in the tree biomass pools by incorporating with basic wood density, biomass expansion factors and carbon fraction. Empirical factors were introduced to estimate the stock change in soil organic carbon (SOC) under the GGP. The results show that the carbon stock in the GGP-stands in Yunnan Province will increase by 12.474-12.608 TgC, 33.016-35.161 TgC, 38.119-47.100 TgC, 43.057-53.626 TgC and 49.918-56.621 by the year 2010,2020,2030,2040 and 2050, respectively. The annual carbon stock change in the GGP-stands will peak at 2.342-2.536 TgC per year in 2013, followed by a gradual decrease. The estimated potential carbon sequestration by GGP-stands amounts to 10.82-12.27% of the carbon stocks of forest ecosystems in Yunnan province in the 1990s. (C) 2008 Elsevier B.V. All rights reserved.