Forest coverage in the largest Water cut-off Forest area at the Source of the Yangtze River has increased by nearly 20% in 20 years
Xinhua News Agency, Xining, 14 Nov (Reporter Li Yaguang and Zhang Dachuan) the reporter learned from the Markehe Forestry Bureau of Qinghai Province that since the implementation of the National Natural Forest Resources Protection Project in 1998, the forest coverage rate in the Markehe Forest region has increased by 18.5%. The number of rare animals and plants in the region has increased steadily, and the water conservation capacity of the river basin has been significantly improved.
Makohe Forest region, located in the south of Qinghai Province, is the largest and most concentrated natural primeval forest area in the source area of the Yangtze River, with a total area of 101800 hectares. The main dominant tree species such as spruce and yew in the forest area are mostly distributed in the limit growth zone between 3200 m and 4200 m.
Since 1998, Marco River Forestry Bureau has comprehensively strengthened anti-illegal logging, anti-poaching and other work, at the same time actively carried out large-scale artificial afforestation project, the implementation has achieved remarkable results.
Bao Yingzhen, deputy director of the Marco River Forestry Bureau, told reporters that from April to May every year, all cadres and workers of the bureau and herdsmen in the forest area jointly went up the mountain to plant trees, planting an average of 200 to 400 saplings a day. Because of the low temperature and high altitude, the saplings grow very slowly, the annual rings are extremely dense, and it is not easy to form a forest.
In a recent interview in the Marco River Forest region, the reporter learned that the diameter of the local trunk reached the size of the bowl mouth and needed to grow for nearly 60 years. The saplings planted in 1998 are now only 10 centimeters in diameter.
Through the protection and afforestation work in the past 20 years, the forest coverage in the Marco River forest region has increased from 51% to 69.5%, an increase of 18.5 percentage points. Forest volume increased from 4.2 million cubic meters to 4.83 million cubic meters, an average annual increase of 33000 cubic meters.
With the improvement of the overall ecological environment, the local rare animal and plant resources recovered rapidly. Up to now, a total of 67 families, 297 genera and 888 species of forest plants have been found in Marco River forest area, among which Artemisia annua, Acanthopanax, Taoer 7 and so on have been included in the national wild plant protection list.
In addition, 12 kinds of national first-class wild conservation animals, such as white-lipped deer, golden leopard, snow leopard and forest musk deer, as well as 32 species of national second-class wild protection animals, such as brown bear, rhesus monkey and red deer, were also monitored in Marco River forest area.
"the overall restoration of wildlife and forest resources in the Marco River forest region has created a balanced, diverse and increasingly authentic ecological environment for the source area of the Yangtze River, and plays an important role in protecting the ecological security of the entire Yangtze River Basin." Li Xiaonan, director of the Qinghai Provincial Forestry and Grass Bureau, said.
According to the latest monitoring results, the water quality of the eight monitoring sections of the main stream of the Yangtze River reaches more than the second class standard, and the condition is excellent, and can be used for drinking after flocculation, sedimentation, filtration and other conventional purification treatment. Compared with the water transportation situation between 2005 and 2012, the whole three rivers source area, including the source of the Yangtze River, has transported nearly 6 billion cubic meters of clean water to the lower reaches of the Yangtze River in recent years.
At the same time, the monitoring results show that due to the steady improvement of vegetation coverage in the source region of the Yangtze River, the local soil and water loss has been greatly reduced. As a huge "sponge" in the Yangtze River Basin, its water conservation capacity is gradually improving.