北京山区森林资源的价值具有附属和动态变化特性。
The value of forest resources in mountainous area of Beijing is affiliated and dynamic.
北京山区水土流失严重，山洪、泥石流灾害时有发生。
There are serious soil erosion problems in Beijing mountain area, where floods and debris floods happen frequently .
门头沟区是北京山区面积最大的区，同时也是离市区最近的山区。
Mentougou is biggest area mountain regions and closest distance to the center of Beijing.
通过摄影与数字图像处理相结合的方法分析了1999年北京山区典型植被覆盖度的季节动态变化规律。
How the typical vegetation coverage changed with time in the mountainous area of Beijing in 1999 is studied after processing the photos taken in field.
北京山区分布着众多的野生花卉种类，如何让这些宝贵的资源充分发挥其应有的经济效益和社会效益，是一项紧迫任务。
Many wild flower species are distributed in Beijing mountain area. How to make the most of their economic and social benefit is an urgent task lying ahead of us.
本研究中提取北京山区的森林景观分布，叠合植被覆盖图，结合NDVI图，将其分为阔叶林、针叶林、灌草和混交林。
The study extracted the image of the distribution of forest landscape and overlay with forest coverage map. Broadleaf forest, conifer forest , mixed forest and shurb are classified with NDVI.
本研究中提取北京山区的森林景观分布，叠合植被覆盖图，结合NDVI图，将其分为阔叶林、针叶林、灌草和混交林。
The study extracted the image of the distribution of forest landscape and overlay with forest coverage map. Broadleaf forest, conifer forest , mixed forest and shurb are classified with NDVI.
应用推荐