中文摘要：

竹林在我国南方分布广、生长快、再生能力强，具有很高的固碳潜力。但是对于区域尺度竹林生态系统碳储量的估算方面仍然存在精度差、缺乏机理模型的不足。本研究针对福建、湖南、江西和浙江4省的毛竹林生态系统，通过野外调查，基于植被生长与温度、水分等因子的相关性原理分析毛竹林生态系统单位面积碳储量与纬度和海拔的关系，构建二元线性回归模型；采用数字高程模型（digital elevation model，简称DEM）和省级毛竹统计面积数据，基于纬度和高程梯度划分统计单元，估算我国南方4省毛竹林生态系统的碳储量。结果表明，36个采样点毛竹林生态系统单位面积碳储量为c78．7～252．6t／hm2，其中土壤层（O～60cm）的碳储量是主体，占66．9％～87．0％；由模型估算，2009年我国南方区域毛竹林生态系统碳储量的总和为C409．0Tg，福建、湖南、江西和浙江的碳储量分别为C109．1、102．1、88．6和109．2Tg；这4省毛竹林生态系统平均单位面积碳储量分别为C122．0、122-3、109．5和136．5t／hm2。

英文摘要：

Bamboo has a high potential of carbon sequestration, which is fast growing, renewable and widespread in the southern China. In order to precisely estimate the carbon storage of bamboo ecosystems, it is necessary to establish an accurate estimation model. In this study, a field investigation was conducted in Fujian, Hunan, Jiangxi and Zhejiang provinces, the relationship between carbon density and latitude and altitude was analyzed, and a binary linear regression model was constructed. Using DEM （Digital Elevation Model） and provincial moso bamboo statistical data of research area, the statistical units were divided based on altitude and latitude gradient, and the carbon storage in the bamboo forest ecosystem in the four provinces was estimated. Finally, according to China＇s forest resource inventory data, carbon stocks in the Chinese bamboo forest ecosystem were calculated. The results showed that, the carbon densities of moso bamboo forest ecosystem for the 36 sampled locations ranged from C 78.7 to 252.6 t/hm2. Carbon storage in the soil layer （0-60 cm） accounted for the majority of the total carbon as 66.9%-87.0%. The carbon storage of moso bamboo ecosystem in Fujian, Hunan, Jiangxi and Zhejiang were C 109.1, 102.1, 88.6 and 109.2 Tg, respectively, a total as 409.0 Tg C in Southern China. The carbon densities of moso bamboo forest ecosystem in the four provinces were C 122.0, 122.3, 109.5 and 136.5 t/hm2, respectively.