国产成人午夜高潮毛片|国产午夜精品一区二区在线观看|久久zyz资源站无码中文动漫|在线观看国产成人av天堂|成人精品一区日本无码网

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: 国产成人精品三级在线影院| 久久人爽人人爽人人片av| 久久av色欲av久久蜜桃网| 亚洲精品一区二区三区不卡| 日韩v亚洲v欧美v精品综合| 蜜桃av 一区二区| 少妇人妻偷人精品无码视频| 亚洲人成网线在线播放| 亚洲av影院一区二区三区四区五区| 精品久久久久久久久久久国产字幕| 国产精品亲子乱子伦xxxx裸| 初音未来爆乳下裸羞羞无码 | 久久久久无码精品国产不卡| 亚洲国产成人av毛片大全| 国产又色又爽又黄刺激的视频| 国产一区二区野外| 亚洲二区一区 人妻激情丁香| 成年午夜性影院| 人妻系列无码一区二区三区| 无码午夜福利片在线观看| 丰满熟女人妻一区二区| 九九久久精品国产免费看小说| 午夜福利激情一区二区三区| 无码一区二区三区久久精品| 性一交一乱一伦在线播放| 国产成人久久精品77777综合| 国产精品亚洲аv久久| 精品无码成人片一区二区| 成人无码无遮挡很h在线播放| 国产麻豆一精品一av一免费软件| 手机看片福利一区二区三区| 亚洲女优一区二区在线观看| 粉嫩极品国产在线观看| 一区二区三区四区我不卡视频在线观看| 亚洲精品中文字幕无码av| 夜夜爽一区二区三区| 精品一区二区三区在线播放视频 | 日本亚洲欧美一区| 亚洲sss整片av在线播放| 成人免费ā片在线观看| 竹菊影视欧美日韩一区二区三区四区五区|