Method for recovering vegetation on burned area of Pinus densata forest

Abstract

The invention belongs to the technical field of ecology, and particularly relates to a method for recovering vegetation of a burned area of a Pinus densata forest. The method comprises the following steps: (1) clipping sprouts of Quercus aquifolioides in the burned area by stages, and mixing loam, humus and a water-retaining agent in planted soil in planting holes; (2) sowing selected shrub seedsin the first stage, and spraying a liquid mulching film which is diluted according to the ratio of 1: 50 after sowing; (3) sowing Pinus densata seeds; and (4) in July and August every year, spraying amixed solution of 0.05 mg- 0.1 mg / L of brassin and 0.6 mg-1 mg / L of cytokinin. The method aims to make full use of the natural regeneration ability of local species, improve the survival rate and preservation rate of Pinus densata and promote sprouting of tillers, and thus, a multi-layer mixed forest can be formed as soon as possible.

Description

technical field [0001] The invention belongs to the technical field of ecology, and in particular relates to a method for restoring vegetation in burned areas of alpine pine forests. Background technique [0002] Alpine pine has strong adaptability and a wide distribution range. It is widely distributed in western Sichuan, southeastern Tibet and northwestern Yunnan. It is a positive tree species, mostly distributed on sunny and semi-sunny slopes. Alpine pine is a deep-rooted light-loving tree species that grows rapidly. It is obviously light-loving at the young tree (seedling) stage, and it is not tolerant to shade after about 4 years. It has no strict requirements on soil and is suitable for deep acidic soil, but it can also grow on alkaline soil and barren Lithocarpus soil. It has the characteristics of drought resistance, drought resistance, and barren resistance. [0003] Alpine pine generally produces a large number of seedlings in the next year after the fire. If the...

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Problems solved by technology

On the one hand, Quercus sichuanyunnanensis can provide a good microenvironment for subsequent germination of various tree species seedlings, avoiding them from harsh climatic conditions; In addition, it is evergreen and does not shed leaves, and the seedlings under the forest lack sufficient light to grow, and the leaves of Quercus sichuan-yunnan are seriously leathery, and decompose slowly after withering, and the seeds that fall on it cannot touch water and soil. It is very unfavorable to the renewal succession of forest land

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