Low-cost rapid forest establishment restoration technology for subalpine degraded forest

Abstract

The invention belongs to the field of ecological forest restoration, particularly relates to a low-cost rapid forest establishment restoration technology for a subalpine degraded forest and aims to propose a low-cost rapid forest establishment restoration technology, relying on a local secondary shrub microenvironment, for the specific degraded ecosystem of the typical secondary shrub stage formedby degradation of an alpine coniferous forest in southwest Asia. The technology is very simple, strong in operability and low in cost, makes the survival rate of trees high, maintenances such as artificial watering and fertilization are not needed after saplings are planted, the survival rate of the saplings can be remarkably improved only by depending on the natural environment, and rapid succession and recovery of the degraded ecosystem are promoted.

Description

technical field [0001] The invention belongs to the field of forest ecological restoration, and in particular relates to a low-cost ecological restoration technology for rapid forestation of degraded subalpine forests. Background technique [0002] The high mountains and sub-alpine mountains in the southwest are important areas of the two ecological barriers of the Qinghai-Tibet Plateau and the Loess Plateau-Sichuan-Yunnan in the "National Main Functional Area Planning". barrier area. Although the country has implemented the natural forest protection project and the project of returning farmland to forest and grassland in this region, the overall ecological degradation trend has not been fundamentally reversed due to the special local ecological environment, human disturbance and global climate change. Therefore, it is urgent to strengthen the technical research on restoration of degraded forest ecosystem in this area. [0003] At present, the technologies and ideas on eco...

AI Technical Summary

Problems solved by technology

The main defect of this technology is: (1) more manpower is invested to promote growth before the planting of forest tree seedlings, such as improving the survival rate of seedlings by chemical methods (as abscisic acid or transplanting surviving agent before planting root soaking), and then for example carrying out fine Large-scale land preparation, etc., require a large amount of work and high costs in the early stage, which is not conducive to large-scale restoration and construction

(2) Due to the poor soil, high water evaporation, and harsh climate in alpine and subalpine areas, and the mountains are high and steep, and inaccessible, it is not only dangerous but also very difficult to reach by manpower, so it is necessary to implement effective management and protection for a long time after artificial planting The cost is higher and the difficulty is greater, and it is even difficult to guarantee the fixed root water when planting the saplings, resulting in a low survival rate of the saplings and difficulty in forming forests

(3) Even after artificial afforestation becomes forest, artificial coniferous forests still generally suffer from degradation of ecological functions, such as difficulty in regeneration, single community structure, low biodiversity, and poor habitat suitability.

However, due to the special fragile ecological environment in the alpine region, under the influence of factors such as human disturbance and global climate change, there are problems such as slow natural growth and difficult regeneration of tree species in the late recovery period, resulting in slow natural succession and recovery of secondary shrubs and difficult to recover. Return to the zonal forest stage

However, for the typical secondary shrub stage of alpine coniferous forest degradation in Southwest Asia, previous forest degradation restoration techniques have never taken any effective measures

Images