Method of restoring deteriorated vegetation ecological system of karst mountain area

An ecosystem and vegetation technology, applied in application, cultivation, agriculture, etc., can solve problems such as slow speed and ecological problems, and achieve the effect of fast speed, simple operation and easy promotion.

Inactive Publication Date: 2005-03-23
XISHUANGBANNA TROPICAL BOTANICAL GARDEN CHINESE ACAD OF SCI
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  • Summary
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, since the soil seed bank of most arbor species in degraded mountainous areas has been destroyed, after the closure of the mountain, when the destroyed seed bank is supplemented, such as through the transport of seeds by animals and birds, the forest may recover. Restoration is based on natural forces such as animals and birds to carry the seeds, the speed is very slow
For a long time, forest restoration in karst mountains has basically been based on this method. Even if some trees are planted, some exotic, economic or timber species are planted with the help of the outside world, but these exotic tree species are hardly suitable for the local karst mountains. environment with little soil and water
Moreover, the cultivation of exotic species may raise other unanticipated ecological problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] During the seed ripening season, mobilize rural idle labor to collect seeds of the main tree species in the Shenshan Forest in Xiban Village, Jiumo Township, Guangnan County, Wenshan Zhuang and Miao Autonomous Prefecture, Yunnan Province. When collecting seeds, adopt the mature seeds scattered under the strong mother tree to be collected one after another, or knock down and collect from the tree. The tree species collected are Quercus japonica, Qinggang, Qingxiang wood, Baiqianggan, round-leaved black mortar, and purple bullet tree. Then remove the shell, peel off the skin, put it in a cool and ventilated place, and remove the unfulfilled seeds after drying. Ten groups of 10 cm × 10 cm × 10 cm soil samples were collected on the degraded karst land of this village, and only 0.6% of the two species of arbor seeds were found in the soil. Dig a 5 cm deep and 5 cm diameter soil pit on these degraded lands, sow 2 to 3 seeds, which can be of the same or different species, and...

Embodiment 2

[0027] Repeat embodiment 1, have the following differences: experiment on the mountainous land of Gumu Town, Gumu Town, Wenshan County, Wenshan County, Yunnan Province. The collected seeds are Dianxin camphor, Quercus japonica, Fenxiangmu, Baiqianggan, Pittosporum yunnanensis, Yingshu, Yuanguohuaxiang, Tiaomu, and Osmanthus yunnanensis. No seeds of arbor species were found in the 10 groups of 10 cm × 10 cm × 10 cm soil samples collected on the degraded ground. On the degraded ground, dig a soil pit 4 cm deep and 6 cm in diameter, and sow 2 to 3 seeds Seeds, the emergence rate is 70%.

Embodiment 3

[0029] Repeat embodiment 1, have the following differences: test on the land of Shangbawei Natural Village, Xisa Town, Xichou County, Wenshan Zhuang and Miao Autonomous Prefecture, Yunnan Province. The collected seeds are: Daye Xinmu Jiangzi, Xichou Runnan, Quercus japonica, Fenxiangmu, Baiqianggan, Pittosporum yunnanensis, Wujiu round leaf, Xiaoyepu, Huaxiang round fruit, and maple green squeeze. No seeds of arbor species were found in the 10 groups of 10 cm × 10 cm × 10 cm soil samples collected from the degraded ground. On the degraded ground, dig a 6 cm deep pit with a diameter of 5 cm, sow 2 to 3 seeds, and the emergence rate is 75%.

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Abstract

A method for restoring the deterorated ecological vegetation system of karst mountain area features that the mature seeds of health trees in the forest in karst mountain area are collected, and after their shells or peels are removed and the seeds are dried in air, they are buried in the holes (4-6 cm for depth and 5-7 cm for diameter) in the degenerative karst region by 2-3 seeds for each hole.

Description

technical field [0001] The invention relates to the protection of the ecological environment, more specifically, the invention relates to a method for recovering the destroyed karst mountainous vegetation ecosystem. Background technique [0002] my country is the country with the largest karst area and the widest distribution in the world, especially in Yunnan, Guizhou, and Guangxi provinces in the southwest. The karst area where carbonate rocks are exposed and developed accounts for about 40% of the total land area of ​​the three provinces. These karst areas are inhabited by a large number of people of different nationalities in the form of villages, forming numerous karst mountain villages. [0003] At present, due to various reasons, the vegetation ecosystems in many karst mountains have suffered unprecedented damage, and some areas have become rocky desertification after long-term damage. Closing mountains and planting exotic tree species has al...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G17/00
Inventor 沈有信
Owner XISHUANGBANNA TROPICAL BOTANICAL GARDEN CHINESE ACAD OF SCI
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