Method for restoring and improving Lithocarpus dealbatus degraded shrubs

Abstract

The invention discloses a method suitable for restoring and improving Lithocarpus dealbatus degraded shrubs in central Yunnan. Lithocarpus dealbatus degraded shrubs are divided into four degenerate state types according to habitat conditions, community structures and development regularity, and different restoring and reproving measures are adopted according to different types of environment characteristics and succession rules: for a Lithocarpus dealbatus dispersed shrub type near bare land, the regeneration and the restoration of shrubs are promoted through Lithocarpus dealbatus afforestation seeding so that conditions are created for introducing pinus yunnanensis; for a Lithocarpus dealbatus sparse shrub type, the succession and the regeneration of Lithocarpus dealbatus shrubs are promoted through digging, soil preparation and anual afforestation of pinus yunnanensis; for a Lithocarpus dealbatus consociation type, the regeneration and the succession of the pinus yunnanensis are promoted through thinning resprouting shrubs and complementally planting young seedlings of the pinus yunnanensis; and for a Lithocarpus dealbatus and pinus yunnanensis monodominant community type, the growth and the development of the pinus yunnanensis are promoted through nurturing adjacent Lithocarpus dealbatus resprouting shrubs. The method for restoring and improving in the invention has strong pertinence and a good effect and is suitable for being applied in the central Yunnan of China.

Description

technical field [0001] The invention relates to an artificial restoration and transformation technology of degraded vegetation, in particular to a restoration and transformation method of degraded shrubs of Lithocarpus yunnanensis. Background technique [0002] Lithocarpus yunnanensis shrub is a severely degraded vegetation type formed after long-term human disturbance of zonal vegetation in central Yunnan, and it is widely distributed in central Yunnan. Due to serious soil erosion, bare surface rocks, and lack of soil nutrients and water, the growth and development of Lithocarpus yunnanensis and other plants on the forest land and the renewal and succession of vegetation are restricted. Therefore, the restoration of Lithocarpus yunnanensis shrub Lithocarpus yunnanensis shrubs in severe degradation are extremely sparse, and their natural recovery is extremely slow. It takes more than 20 years of enclosure to gradually form dense shrubs of Lithocarpus yunnanensis with higher ...

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Problems solved by technology

[0003] The purpose of this invention is to provide a kind of rapid recovery and transformation method of Lithocarpus yunnanensis degraded shrubs, which divides Lithocarpus yunnanensis shrubs into Depending on the type of degradation state, different restoration and transformation measures are taken according to the type of degradation state, which accelerates the rapid recovery of Lithocarpus yunnanensis shrubs and the transformation process to Yunnan pine forests, and solves the problem of restoration and transformation of Lithocarpus yunnanensis shrubs in the past. The method is single, and corresponding measures cannot be taken according to the type of degradation to solve the key problems affecting vegetation restoration and transformation under different degradation states, and improve the effect of restoration and transformation

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