According to many previous scientific studies, species Limestone elm (stone pine) is only found in certain regions in China and Ha Lang (Cao Bang), Kim Hy (Bac Kan). However, recent surveys show that there are only a few mature trees left in Kim Hy in Vietnam.Limestone elm species is facing a very high risk of extinction even though it has been put into experimental cultivation. Unsuccessful conservation is placing an urgent need on scientific research to preserve this rare genetic resource.Grows only on jagged cat-eared rocky peaks; wind, cold, harsh fog created intense vitality for limestone elms. The tree has few leaves, the trunk is downwind, but the leaf layer always reaches up to the sun. The vitality is so strong, but it is also because of the preciousness that hundreds of stone pine trees have collapsed before the loggers.The number of mature trees left in Vietnam, mainly in the Kim Hy Nature Reserve, can only be counted on one finger. These are all trees that grow on craggy cliffs, even if the loggers want them, they can’t get them, so they have a chance to survive until now.Elm wood was previously classified as group IA, in the group threatened with extinction. In Decree 06/2019/ND-CP, elm wood belongs to group IIA in the List of rare and precious forest plants, restricted from exploitation for commercial purposes.Most elm trees have a lifespan of 50 to 100 years with an average diameter of 50 – 70 cm. Many elm trees have a “huge” diameter of 1.8 to 2.1 m, equivalent to 4-6 adults to hug the entire circumference of the trunk.Faced with the danger of extinction of this rare plant, a few years ago, scientists and Kim Hy Nature Reserve implemented a solution to collect seeds and nurse them to plant in the habitat of the species.The rangers and researchers have successfully nursed regarding 1,000 seedlings and planted them on many rocky peaks in the core zone. However, to date, all these plants have not survived.According to the Management Board of Kim Hy Nature Reserve, during the protection and inspection process, there are times when seedlings are found growing naturally. However, when they grow to a certain extent, most of them die for unknown reasons. The Management Board of the Reserve is really confused because there is no other possible conservation measure.As for other localities such as Da Lat, Lac Duong, Lam Ha, Duc Trong and Dam Rong, elm trees account for a very small proportion, scattered and divided, so the populations are difficult to relate to each other. The uneven distribution also causes the population of elm to be increasingly genetically degraded.According to the connoisseurs of woodworking, elm wood has beautiful veins, light aroma, so the price is high, specialized for making luxury furniture. Because of that, the amount of elm wood has always been at high risk of being watched by loggers and sawed down to make a profit.Unfortunately, in the province, there is currently no specific protection measure for elm wood, only implementing the measure of contracting for management and protection with other rare and precious forest species from the state budget or from other sources. payment for forest environmental services.>>>Watch more videos: Stunned by the appearance of the Huacrapona palm tree. Source: Kienthucnet.
According to many previous scientific studies, species Limestone elm (pine stone) is only found in certain areas in China and Ha Lang (Cao Bang), Kim Hy (Bac Kan). However, recent surveys show that there are only a few mature trees left in Kim Hy in Vietnam.
Limestone elm species is facing a very high risk of extinction even though it has been put into experimental cultivation. Unsuccessful conservation is placing an urgent need on scientific research to preserve this rare genetic resource.
Grows only on jagged cat-eared rocky peaks; wind, cold, harsh fog created intense vitality for limestone elms. The tree has few leaves, the trunk is downwind, but the leaf layer always reaches up to the sun. The vitality is so strong, but it is also because of the preciousness that hundreds of stone pine trees have collapsed before the loggers.
The number of mature trees left in Vietnam, mainly in the Kim Hy Nature Reserve, can only be counted on one finger. These are all trees that grow on craggy cliffs, even if the loggers want them, they can’t get them, so they have a chance to survive until now.
Elm wood was previously classified as group IA, in the group threatened with extinction. In Decree 06/2019/ND-CP, elm wood belongs to group IIA in the List of rare and precious forest plants, restricted from exploitation for commercial purposes.
Most elm trees have a lifespan of 50 to 100 years with an average diameter of 50 – 70 cm. Many elm trees have a “huge” diameter of 1.8 to 2.1 m, equivalent to 4-6 adults to hug the entire circumference of the trunk.
In the face of the danger of extinction of this rare plant, a few years ago, scientists and Kim Hy Nature Reserve implemented a solution to collect seeds and nurse them to plant on the habitat of the species.
The rangers and researchers have successfully nursed regarding 1,000 seedlings and planted them on many rocky peaks in the core zone. However, to date, all these plants have not survived.
According to the Management Board of Kim Hy Nature Reserve, in the process of protection and inspection, there are times when seedlings are found growing naturally. However, when they grow to a certain extent, most of them die for unknown reasons. The Management Board of the Reserve is really confused because there is no other possible conservation measure.
As for other localities such as Da Lat, Lac Duong, Lam Ha, Duc Trong and Dam Rong, the elm tree accounts for a very small proportion, scattered and divided, so the populations are difficult to relate to each other. The uneven distribution also causes the population of elm to be increasingly genetically degraded.
According to the connoisseurs of woodworking, elm wood has beautiful veins, light aroma, so the price is high, specialized for making luxury furniture. Because of that, the amount of elm wood has always been at high risk of being watched by loggers and sawed down to make a profit.
Unfortunately, in the province, there is currently no specific protection measure for elm wood, only implementing the measure of contracting for management and protection with other rare and precious forest species from the state budget or from other sources. payment for forest environmental services.
>>>Watch more videos: Stunned by the appearance of the Huacrapona palm tree. Source: Kienthucnet.
