Assessing productivity and carbon sequestration capacity of subtropical coniferous plantations using the process model PnET-CN
文献类型：期刊论文
| 作者 | Yan Yuan(颜元) ; Wang Shaoqiang ; Wang Yidong ; Wu Weixing ; Wang Jingyuan ; Chen Bin ; Yang Fengting |
| 刊名 | JOURNAL OF GEOGRAPHICAL SCIENCES
 |
| 出版日期 | 2011 |
| 卷号 | 21期号:3页码:458-474 |
| 关键词 | FOREST ECOSYSTEM PROCESSES NET PRIMARY PRODUCTION CLIMATE-CHANGE SOUTH CHINA ATMOSPHERIC DEPOSITION REGIONAL APPLICATIONS LITTER DECOMPOSITION FOLIAR RESPIRATION DECIDUOUS FORESTS NUTRIENT DYNAMICS |
| 通讯作者 | Wang Shaoqiang |
| 英文摘要 | A generalized, lumped-parameter ecological model PnET-CN was calibrated and validated for a subtropical coniferous plantation in southern China. PnET-CN model describes the biogeochemical cycles of carbon (C) and nitrogen (N) and can assist in estimating carbon sequestration potential. For validation of PnET-CN, data from coniferous forest plantations in southern China was used. Simulated daily gross primary productivity (GPP) from 2005 to 2007 agreed well with observations (R-2=0.56, S.D.=0.009). Simulations of monthly soil respiration (R-s) from 2005-2007 agreed well with R-s observations (R-2=0.67, S.D. =0.03). Simulated annual net primary productivity (NPP) from 1998-2006 was 803 33 gCm(-2)a(-1), about 4% higher than NPP observation (752 +/- 51 gCm(-2)a(-1)). Simulations of annual NEP from 2005-2007 only overestimate 9 gCm(-2)a(-1) (4%), 4 gCm(-2)a(-1) (1%) and 34 gCm(-2)a(-1) (8%) compared to NEP observations, respectively. Simulated annual foliar N concentration (FoINCon) (1.09%) is 10% lower than observed monthly FoINCon (0.87%-1.58%). Simulated annual N leaching (0.26 gNm(-2)) is about 10% lower than leaching observation (0.29 gNm(-2)). PnET-CN model validation indicates that PnET-CN is capable to simulate daily GPP, annual NPP, annual NEP, monthly R-s, annual FoINCon and annual nitrate N leaching for subtropical coniferous plantations in southern China. The results obtained from the validation test revealed that PnET-CN model can be used to simulate carbon sequestration of planted coniferous forests in southern China to a high level of precision. Sensitivity analysis suggests that great care should be taken in developing generalizations as to how forests will respond to a changing climate. PnET-CN performed satisfactorily in comparison to other models that have already been calibrated and validated in coniferous planted subtropical forests in China. Based on PnET-CN validation and its comparison to other models, future improvement of PnET-CN should focus on seasonal foliar N dynamics and the effects of water stress on autotrophic respirations in subtropical coniferous plantations in southern China. |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China 31070438;CAS KZCX2-YW-305-3 KZCX2-YW-QN301;State Key Basic Research Development Project 2010CB833503 |
| 语种 | 英语 |
| 公开日期 | 2011-07-06 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/4824]  |
| 专题 | 地理科学与资源研究所_研究生部 |
| 推荐引用方式 GB/T 7714 | Yan Yuan,Wang Shaoqiang,Wang Yidong,et al. Assessing productivity and carbon sequestration capacity of subtropical coniferous plantations using the process model PnET-CN[J]. JOURNAL OF GEOGRAPHICAL SCIENCES,2011,21(3):458-474. |
| APA | Yan Yuan.,Wang Shaoqiang.,Wang Yidong.,Wu Weixing.,Wang Jingyuan.,...&Yang Fengting.(2011).Assessing productivity and carbon sequestration capacity of subtropical coniferous plantations using the process model PnET-CN.JOURNAL OF GEOGRAPHICAL SCIENCES,21(3),458-474. |
| MLA | Yan Yuan,et al."Assessing productivity and carbon sequestration capacity of subtropical coniferous plantations using the process model PnET-CN".JOURNAL OF GEOGRAPHICAL SCIENCES 21.3(2011):458-474. |
入库方式： OAI收割
来源：地理科学与资源研究所
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