日本无限资源_福禄影院午夜伦_美国av毛片_亚洲自拍在线观看_激情亚洲一区国产精品_999久久久久

Beijing strengthens efforts on old tree protection

Source: Xinhua| 2019-07-22 18:30:21|Editor: Yurou
Video PlayerClose

Photo taken on Sept. 28, 2007 shows that people are doing exercises beside the ancient trees in the Temple of Heaven in Beijing. The park held an ancient cypress culture exhibition to raise the public awareness of protecting ancient trees.(Xinhua/Lu Xin)

BEIJING, July 22 (Xinhua) -- At the foot of Beijing's Western Hills, Lingguang Temple (Temple of Divine Light) always draws crowds with its sacred Buddha's tooth relic. But the 1,200-year-old cultural heritage site also boasts a few "living treasures" -- trees.

This year, Beijing has for the first time launched a government fund to protect trees that have grown in the capital city for over 100 years.

Two ginkgoes and two pagoda trees at the temple became the first beneficiaries of the project, which was organized by the Beijing Afforestation Fund under the municipal forestry and parks bureau.

Yang Shutian, director of the fund, said that old trees can be seen as "living relics," and keeping them healthy was also "part of the work to protect and carry forward the city's history."

In April, a group of tree experts carried out a comprehensive examination of the four old trees, which were found to be very weak, on the verge of death. They soon undertook a series of rescue efforts such as filling holes, controlling pests, watering and fertilizing over the next two months. The trees are now stronger and well monitored.

According to Yang, more old trees in the city will be safeguarded through the project. It will call on more enterprises, organizations and individuals at home and abroad to donate money and materials to make up the shortage of governmental investment.

"The old trees have witnessed the city's development and played a key role in improving the city's environment. To make them healthy is our collective duty," Yang said.

Beijing has a large number of old trees. A survey by the Beijing forestry department in 2017 showed that the city had about 40,000 trees aged more than one century, of which more than 6,100 were aged over 300 years with the longest-living 3,000 years old, almost as old as the city itself. Nearly half of these trees are distributed in historical blocks and ancient gardens.

However, about 9,000 old trees have become endangered, due to environmental changes, natural disasters, attacks from pests and human destruction.

Some trees showed decreased abilities to absorb nutrients and to regenerate, while others were grown in poorer soil conditions. In addition, air pollution and declining populations of natural predators against pests have also weakened them.

"Compared with ordinary trees, the protection of old trees requires more money, procedures and technologies," said a tree expert of the project.

According to the local forestry department, the annual protection cost for an old tree is between 900 yuan and 1,800 yuan. But extra efforts to rescue trees in severe conditions may cost more than 20,000 yuan a year.

In recent years, the Beijing forestry department has strengthened efforts on scientific research and popularization of old tree protection.

It has used advanced facilities including GPS and laser locators to provide accurate positions of the city's old trees. Local research institutes have bred more than 4,000 seedlings from old trees with good genes.

In addition, an adoption list of the city's 697 old trees was published earlier this year, encouraging the public to adopt and take care of old trees. Most of them are cypresses, pines and pagoda trees distributed in downtown Beijing.

KEY WORDS:
EXPLORE XINHUANET
010020070750000000000000011100001382480661
主站蜘蛛池模板: 顶级黄色片 | 男人女人真曰批的视频8 | AV永久天堂一区二区三区香港 | 精品视频一二三 | 91亚洲精品在线观看 | 亞洲中文字幕第一 | 91嫩操 | 51cao在线观看 | 69久久久久 | 美女高潮网站 | 久久国产人妻无码一区 | 日韩毛片在线看 | 久久久久久久尹人综合网亚洲 | 亚洲性插 | 91久久精品综合 | 国产精品一级特婬AV片在线看 | 久草网在线视频 | 精品无码人妻一区二区三区 | 婷婷综合久久一区二区三 | 国产亚洲精品久久久久久国模美 | 中文字幕第二页精品一区 | 夜夜骑综合 | 老司机久久一区二区三区 | 一区二区三区四区不卡在线 | 日韩黄色 | 欧美另类一区 | 99精品免费视频 | 一级片无遮挡 | 精品人妻无码一区二区三区竹菊影视 | 性一级片 | 国产一区二区三区四区精华 | 欧美一级黄色免费看 | 免费国产一级av片 | 永久免费av在线观看 | 亚洲成熟人网站 | 91·com| 国产亚洲人成网站在线观看 | ZPS无套内射视频免费播放 | 天天艹av | 国产精自产拍久久久久久蜜 | 亚洲国产日韩欧美视频二区 |