Method for promoting in situ decomposition of casuarina leaf litter

An in-situ decomposition and litter technology, applied in the field of plant science, can solve the problems of high consumption of manpower and material resources, unfriendly ecological environment, etc., and achieve the effect of reducing stock, reducing risk of occurrence, and simple operation

Active Publication Date: 2021-12-17
SOUTH CHINA BOTANICAL GARDEN CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Some of the above methods have defects such as high consumption of manpower and material resources, and being unfriendly to the ecological environment.

Method used

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  • Method for promoting in situ decomposition of casuarina leaf litter
  • Method for promoting in situ decomposition of casuarina leaf litter
  • Method for promoting in situ decomposition of casuarina leaf litter

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Embodiment 1 promotes the method for in-situ decomposition of casuarina leaf litter

[0032] A kind of method of this embodiment promotes casuarina leaf litter to decompose in situ, comprises the following steps:

[0033] 1. Collect casuarina leaf litter and soil from the field, bring them back to the laboratory, and place them in an indoor artificial climate box for indoor simulation decomposition;

[0034] 2. Laboratory microcosm design was used in the indoor simulated decomposition experiment, referring to (Vargas et al., 2006) and (Li et al., 2009) methods.

[0035] The setting of the micro-ecological system is as follows: air-dried soil equivalent to 30g of dry mass is evenly added to a beaker with a capacity of 1000mL, and the soil humidity in each beaker is adjusted to 60% of the field water holding capacity, and covered with a layer of pinholes A thin film to prevent water loss but at the same time keep the gas unobstructed. A circular litter bag was placed on...

Embodiment 2

[0039] Embodiment 2 promotes the method for in-situ decomposition of casuarina leaf litter

[0040] The method for promoting the in-situ decomposition of casuarina leaf litter in this embodiment, except adding 2 mg of Mn element according to the N / Mn ratio of 20:1 in step 4, other steps are the same as in Example 1. After 6 months, the weight loss rate of litter was calculated, and the results are shown in Table 1.

Embodiment 3

[0041] Embodiment 3 promotes the method for in-situ decomposition of casuarina leaf litter

[0042] The method for promoting the in-situ decomposition of casuarina leaf litter in this embodiment, except that 1.25 mg of Mn element is added according to the N / Mn ratio of 50:1 in step 4, other steps are the same as in Example 1. After 6 months, the weight loss rate of litter was calculated, and the results are shown in Table 1.

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Abstract

The invention discloses a method for promoting in-situ decomposition of casuarina leaf litter. The method comprises adding N element to the casuarina leaf litter for 2 to 4 months, and then adding Mn element for 3 to 6 months of decomposition. The method of the present invention fundamentally reduces the litter stock and reduces the risk of forest fires; and the method of the present invention is added under the forest without moving the litter under the forest, and can also promote the return of litter nutrients after accelerated decomposition. Maintaining soil fertility has the advantages of simple operation, ecological environment protection and long-term effect.

Description

technical field [0001] The invention belongs to the field of plant science and technology, in particular to a method for promoting the in-situ decomposition of casuarina leaf litter. Background technique [0002] Forest fire ranks first in the world's three major natural disasters that destroy forests. Litter is an important part of forest combustibles, and its large accumulation tends to increase the risk of forest fires. Especially the hard-to-decompose litter produced by tree species such as casuarinas, which cover the understory surface for a long time, and its flammable characteristics, are likely to cause forest fires, causing damage and loss to people's production and life. Reducing the stock of forest fuel is an important measure to reduce the risk of fire. [0003] For a long time, the control technology of forest combustibles mainly has the following forms: 1. Mechanical treatment: mainly refers to mechanical crushing and cleaning, mainly for areas where the deco...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01C21/00
CPCA01C21/005
Inventor 饶鑫简曙光申卫军童升洪王雅雅谭向平
Owner SOUTH CHINA BOTANICAL GARDEN CHINESE ACADEMY OF SCI
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