Remote sensing approach to estimating net primary productivity of temperate deciduous forest in northeast China
文献类型：会议论文
| 作者 | Xia C. Z. ; Xiong L. Y. ; Ieee |
| 出版日期 | 2004 |
| 关键词 | temperate deciduous forest PAR RUE MODIS NPP canopy photosynthesis woody biomass efficiency model ndvi |
| 页码 | 4601-4604 |
| 英文摘要 | The application of remote sensing in the study of terrestrial ecosystem opens up an effective way for simulating-terrestrial productivity. In the paper, a RUE model is established by parameterized plant photosynthesis and respiration. Photosynthetically active radiation absorbed by all surface materials (APAR(SFC)), obtained by correcting photosynthetically-active radiation observed by MODIS for the effects of surface albedo, atmospheric total transmittance, and periodical change of solar incident angle and solar hour angle during daytime, together with the ratio of PAR absorbed by the canopy to APAR(SFC) (RPAR) and radiation use efficiency (RUE) based on a relationship between RUE and maximum rate of leaf photosynthesis (A(max)) governed by its dependence on seasonal dynamics of foliage nitrogen content, are used to estimate gross photosynthesis. Plant respiration is divided into growing respiration as constant fraction of GPP, and maintenance respiration from leaf, stem, and root. The model is adapted to calculate net primary productivity (NPP) of temperate deciduous forest in northeast China, supported by auxiliary data composed of daily MODIS data, atmosphere profile, ice-snow cover and landform of the study area in June 2003. In June 2003, daily mean APAR(SFC) of temperate deciduous forest in the study area reaches 8.1 MJ m(-2) day(-1), RUE varies from 0.4-5 to 1.09 gC MJ(-1), and monthly NPP is 0.53 MgC ha(-1), 0.56 MgC ha(-1) for temperate deciduous coniferous forest, 0.51 M-C ha(-1) for temperate deciduous broadleaved forest. Compared with process-based model, both of them are in agreement with simulated NPP. |
| 收录类别 | CPCI |
| 会议录出版者 | Ieee |
| 语种 | 英语 |
| ISBN号 | 0-7803-8742-2 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/25324]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Xia C. Z.,Xiong L. Y.,Ieee. Remote sensing approach to estimating net primary productivity of temperate deciduous forest in northeast China[C]. 见:. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。