论文部分内容阅读
通州区位于首都东南部,总面积907平方公里。截止2009年,全区林地总面积为18624.7公顷,森林覆盖率为19.17%,林木绿化率为23.35%。近年来,通过实施“三北防护林”、京津风沙源治理、第二道隔离地区建设等林业生态工程和京津城际铁路、京津高速第二通道、机场南线和机场二通道等奥运绿化重大工程,全区的森林资源总量有了明显递增,但仍存在森林结构和布局不尽合理,森林质量有待提高的问题。近来,随着通州
Tongzhou District is located in the southeast of the capital, with a total area of 907 square kilometers. As of 2009, the total area of forest land in the region was 18624.7 hectares with a forest coverage rate of 19.17% and a forest afforestation rate of 23.35%. In recent years, through the implementation of the “Three North Shelterbelt”, Beijing and Tianjin sand source management, the second isolation area construction and other forestry ecological engineering and Beijing-Tianjin intercity railway, the second channel of Beijing-Tianjin high-speed, airport south line and Airport two channel Such as the Olympic Green major projects, the total area of forest resources has increased significantly, but there are still some problems in the forest structure and layout is not reasonable, the quality of the forest needs to be improved. Recently, with Tongzhou