| 城市绿量测算模式及信息系统 |
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| 引用本文： | 周坚华.城市绿量测算模式及信息系统[J].地理学报,2001,11(1):14-23. |
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| 作者姓名： | 周坚华 |
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| 作者单位： | 华东师范大学城市与环境动态过程重点研究实验室，上海 200062 |
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| 基金项目： | 上海市科技发展基金资助项目!( 972 31 2 0 1 8)&& |
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| 摘 要： | 作者提出了以彩红外航片判读和计算机模拟技术测算绿量、建立绿量数据库、及对该数据库的GIS化开发形成绿量信息管理系统的一整套理论技术与方法。
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| 关 键 词： | 绿化三维量 遥感测算模式 空间定位 信息管理系统 城市 绿量数据库 绿化结构 |
| 文章编号： | 0375-5444(2001)01-0014-10 |
| 收稿时间： | 2000-08-26 |
| 修稿时间： | 2000年2月18日 |
Estimation of net primary productivity in China using remote sensing data |
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| SUN Rui,ZHU Qi-jiang.Estimation of net primary productivity in China using remote sensing data[J].Acta Geographica Sinica,2001,11(1):14-23. |
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| Authors: | SUN Rui ZHU Qi-jiang |
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| Institution: | Dept. of Resources and Environment Sciences, Beijing Normal University, Beijing 100875,China |
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| Abstract: | It is significant to estimate terrestrial net primary productivity (NPP) accurately not only for global change research, but also for natural resources management to achieve sustainable development. Remote sensing data can describe spatial distribution of plant resources better. So, in this paper an NPP model based on remote sensing data and climate data is developed. And 1km resolution AVHRR NDVI data are used to estimate the spatial distribution and seasonal change of NPP in China. The results show that NPP estimated using remote sensing data are more close to truth. Total annual NPP in China is 2.645×109 tC. The spatial distribution of NPP in China is mainly affected by precipitation and has the trend of decreasing from southeast to northwest. |
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| Keywords: | three dimentional vegetation quantity database management system spatial location window appearing |
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