Estimation of net primary productivity in north tibet plateau by integrating casa model with modis data
文献类型：会议论文
| 作者 | Lu, Yuan1,2; Wu, Lianglin1,3; Hua, Cui1 |
| 出版日期 | 2008 |
| 会议日期 | June 28, 2008 - June 29, 2008 |
| 会议地点 | Guangzhou |
| 卷号 | 7145 |
| DOI | 10.1117/12.812996 |
| 页码 | 71450J |
| 国家 | China |
| 英文摘要 | This paper reports on the development and testing of a procedure for assessing large-scale patterns of vegetation Net Primary Productivity (NPP) in North Tibet Plateau. This work was based on Carnegie-Ames-Stanford Approach (CASA) model, multi-temporal MODIS data and ground meteorological data. The research shows that: (1) for NPP, an estimated result of North Tibet Plateauapproaches an actually tested value. A fast diagnosis and an accurate evaluation to temporal and spatial distribution of NPP can be fulfilled by CASA model; (2) spatial distribution of NPP appears a progressive decrease from SE to NW and this distribution is identical to hydrothermal conditions and vegetations zonal differentiation. A total NPP in study area is 46.434MtC/a, the largest occurring in high-cold meadow, making up 48.4 percent; the second in high-cold steppe, 39.24 percent, respectively; (3) NPP is featured byan obvious seasonal variation: extremely low in middle winter (from November to March), its cumulative value making up 3.2 percent of annual NPP; highest in summer (from June to September), its cumulative value covering 84 percent, respectively. This temporal variation of NPP is related to the seasonal variationof both temperature and moisture content in North Tibet Plateau. |
| 源文献作者 | SPIE |
| 产权排序 | 2 |
| 会议录 | Proceedings of SPIE - The International Society for Optical Engineering
 |
| 学科主题 | Net Primary Productivity ; Casa ; Modis ; North Tibet Plateau |
| 语种 | 英语 |
| ISSN号 | 0277786X |
| 源URL | [http://ir.imde.ac.cn/handle/131551/25945]  |
| 专题 | 成都山地灾害与环境研究所_成都山地所知识仓储（2009年以前） |
| 作者单位 | 1.School of Resources and Environmental Science, Guangxi Teachers Education University, Nanning 530001, Guangxi, China; 2.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, Sichuan, China; 3.Research Center for Earth Environment and Resources, Sun Yat-sen University, Guangzhou 510275, Guangdong, China |
| 推荐引用方式 GB/T 7714 | Lu, Yuan,Wu, Lianglin,Hua, Cui. Estimation of net primary productivity in north tibet plateau by integrating casa model with modis data[C]. 见:. Guangzhou. June 28, 2008 - June 29, 2008. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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