Estimate of productivity in ecosystem of the broad-leaved Korean pine mixed forest in Changbai Mountain
文献类型：期刊论文
| 作者 | Wang, M; Guan, DX; Wang, YS; Hao, ZQ; Liu, YQ; Wang, M, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China |
| 刊名 | SCIENCE IN CHINA SERIES D-EARTH SCIENCES
 |
| 出版日期 | 2006 |
| 卷号 | 49页码:74-88 |
| 关键词 | Carbon Balance Eddy Covariance Technique Primary Productivity Net Ecosystem Exchange Of Co2 Flux The Broad-leaved Korean Pine Forest |
| ISSN号 | 1006-9313 |
| 英文摘要 | We measured soil, stem and branch respiration of trees and shrubs, foliage photosynthesis and respiration in ecosystem of the needle and broad-leaved Korean pine forest in Changbai Mountain by LI-6400 CO2 analysis system. Measurement of forest microclimate was conducted simultaneously and a model was found for the relationship of soil, stem, leaf and climate factors. CO2 flux of different components in ecosystem of the broad-leaved Korean pine forest was estimated based on vegetation characteristics. The net ecosystem exchange was measured by eddy covariance technique. And we studied the effect of temperature and photosynthetic active radiation on ecosystem CO2 flux. Through analysis we found that the net ecosystem exchange was affected mainly by soil respiration and leaf photosynthesis. Annual net ecosystem exchange ranged from a minimum of about -4.671 mu mol(.)m(-2.)s(-1) to a maximum of 13.80 mu mol(.)m-(2-)s(-1), mean net ecosystem exchange of CO2 flux was -2.0 mu mol(.)m(-2)-s(-1) and 3.9 mu mol(.)m(-2.)s(-1) in winter and summer respectively (mean value during 24 h). Primary productivity of tree, shrub and herbage contributed about 89.7%, 3.5% and 6.8% to the gross primary productivity of the broad-leaved Korean pine forest respectively. Soil respiration contributed about 69.7% CO2 to the broad-leaved Korean pine forest ecosystem, comprising about 15.2% from tree leaves and 15.1 % from branches. The net ecosystem exchange in growing season and non-growing season contributed 56.8% and 43.2% to the annual CO2 efflux respectively. The ratio of autotrophic respiration to gross primary productivity (R-a:GPP) was 0.52 (NPP:GPP=0.48). Annual carbon accumulation underground accounted for 52% of the gross primary productivity, and soil respiration contributed 60% to gross primary productivity. The NPP of the needle and broad-leaved Korean pine forest was 769.3 gC(.)m(-2)-a(-1). The net ecosystem exchange of this forest ecosystem (NEE) was 229.51 gC(.)m(-2.)a(-1). The NEE of this forest ecosystem acquired by eddy covariance technique was lower than chamber estimates by 19.8%. |
| 学科主题 | Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000242721500006 |
| 公开日期 | 2011-09-23 |
| 源URL | [http://210.72.129.5/handle/321005/54799]  |
| 专题 | 沈阳应用生态研究所_沈阳应用生态研究所 |
| 通讯作者 | Wang, M, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, M,Guan, DX,Wang, YS,et al. Estimate of productivity in ecosystem of the broad-leaved Korean pine mixed forest in Changbai Mountain[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2006,49:74-88. |
| APA | Wang, M,Guan, DX,Wang, YS,Hao, ZQ,Liu, YQ,&Wang, M, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China.(2006).Estimate of productivity in ecosystem of the broad-leaved Korean pine mixed forest in Changbai Mountain.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,49,74-88. |
| MLA | Wang, M,et al."Estimate of productivity in ecosystem of the broad-leaved Korean pine mixed forest in Changbai Mountain".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 49(2006):74-88. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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