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A method for soil carbon increase and biodiversity bacterial agent regulation in eroded and bad land under forest

A biodiversity and soil technology, applied in the field of ecological restoration engineering, can solve the problems of manpower and financial resources, complex planting methods, and small scope of application, and achieve the effects of increasing soil organic carbon, improving soil structure, and increasing soil aggregates

Active Publication Date: 2021-07-27
INST OF ENVIRONMENT & SUSTAINABLE DEV IN AGRI CHINESE ACADEMY OF AGRI SCI
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Problems solved by technology

However, this prior art has the following defects: (1) It takes a long time to screen vegetation varieties, and the scope of application is small; (2) The planting method is complicated, and the implementation consumes a lot of manpower and financial resources, and the cost is high

Method used

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the following examples are given to further describe the present invention in detail.

[0026] The invention discloses a method for soil carbon increase and biodiversity bacterial agent regulation in eroded underforest land, which is to improve soil structure and increase biodiversity by adding mycorrhizal fungi to plant roots.

[0027] The specific technical scheme is as follows

[0028] Obtain mycorrhizal fungi. Investigate the main vegetation types in the red soil area, and screen species with strong nutrient absorption capacity. For these species, mycorrhizae can be obtained in two ways:

[0029] The mycorrhizal fungus corresponding to the plant is directly purchased, cultivated in the laboratory, and then applied in the field.

[0030] Identify areas rich in biodiversity around areas that need to be restored, collect a large number of vegetation rhizosphere soil samp...

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Abstract

The invention provides a method for increasing soil carbon and biological diversity bacterial agents in eroded underforest land, improving soil structure and increasing biological diversity by adding mycorrhizal fungi to plant roots; the specific steps are as follows: screening for strong nutrient absorption capacity species of acquired mycorrhizal fungi. For soil carbon sequestration and enhancement of biological activity in eroded soil, two methods can be used for mycorrhizal application, namely seed dressing and root application at seedling stage. The invention has the advantages that: through the regulation and control of the bacterial agent, the area of ​​soil nutrient absorption by the root system of the understory eroded land is increased, and the nutrient utilization efficiency is improved. Soil organic carbon increased, small particle soil aggregates increased, and soil structure improved. Increased surface and soil biodiversity.

Description

technical field [0001] The invention relates to the technical field of ecological restoration engineering, in particular to a method for increasing soil carbon and increasing biodiversity in red soil erosion and degraded land, in particular, using mycorrhizal fungi to improve the soil structure of erosion and degradation by using vegetation roots to increase soil organic carbon content and increase biodiversity. Background technique [0002] my country's red soil is mainly distributed in the area south of the Yangtze River, with a total area of ​​2.18 million km 2 , accounting for 22.7% of the total land area of ​​the country, of which the soil area of ​​the red soil series is about 1.28 million km 2[1] . Among them, the area of ​​mountains and hills in the subtropical red soil region in the south accounts for a large proportion. Due to the characteristics of high temperature and rain, abundant water and heat resources, and the same season of humidity and heat, soil erosio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01B79/02A01G22/00A01G18/10
CPCA01B79/02A01G18/10A01G22/00Y02P60/20
Inventor 于寒青刘文祥陈晓光
Owner INST OF ENVIRONMENT & SUSTAINABLE DEV IN AGRI CHINESE ACADEMY OF AGRI SCI
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