Method for accelerating decomposition of mountainous artificial Chinese pine forestland litters

Abstract

The invention relates to a method for accelerating decomposition of mountainous artificial Chinese pine forestland litters, and belongs to the technical field of litter decomposition. The rainy season from June to August is selected, Chinese pine understory shrubs and herbs are mowed, the mowed shrubs or herbs cover the forestland surface, then a compound microorganism bacterium agent is applied to the Chinese pine forestland litters after a rain with the rainfall capacity being greater than 5 mm, the applying amount is 36-60 kg / ha, and the compound microorganism bacterium agent comprises, by weight, 1-2 parts of a straw-decomposing inoculant, 5-8 parts of a water absorbent, 3-5 parts of an adhesive agent, 2-3 parts of urea, 1-2 parts of saccharose and 30-40 parts of sandy soil. The method is easy to operate, only two times of manual operation, namely mowing and applying of the compound microorganism bacterium agent needs to be conducted, through the combination of the two aspects of shrub cutting and herb removing during the growing period and microorganism activity factor adjustment, the decomposition speed is increased, microorganisms are in a natural state, the decomposition rate of the Chinese pine forest litters can be increased by 90% or above, and the litter decomposition rate can be increased by 69% or above compared with that achieved by the mode that only a straw-decomposing inoculant is applied.

Description

technical field [0001] The invention belongs to the technical field of litter degradation, and in particular relates to a method for accelerating the decomposition of litter in mountain pine plantations. Background technique [0002] The mountainous area of ​​northern Hebei has an important ecological location and rich forest resources. Pinus tabulaeformis is the main forest type. Forest litter is an important carrier of matter and energy in the forest ecosystem. The content of lignin and cellulose in the litter of Pinus tabulaeformis is high, and Surrounded by cellulose, it is very stable and difficult to degrade. Therefore, the degradation of lignin is the rate-limiting process of the nutrient cycle of the forest ecosystem on the earth. If the litter degradation is slow, most of the nutrients stored in the litter cannot participate in the circulation in a timely and effective manner. This leads to a decrease in the rate of nutrient cycling and the productivity of the fores...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of slow natural decomposition of litter in pine artificial forest land in northern Hebei, the present invention provides a method for accelerating the decomposition of litter in pine artificial forest in mountainous area. The method increases the types and quantities of microorganisms by adjusting factors affecting microbial activities , the operation method is simple, effective, time-saving and labor-saving, and can accelerate the decomposition speed of Chinese pine litter

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