CN110036714B - Method for regulating and controlling soil recarburization and biodiversity microbial inoculum of inferior soil in forest erosion - Google Patents
Method for regulating and controlling soil recarburization and biodiversity microbial inoculum of inferior soil in forest erosion Download PDFInfo
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- CN110036714B CN110036714B CN201910275322.XA CN201910275322A CN110036714B CN 110036714 B CN110036714 B CN 110036714B CN 201910275322 A CN201910275322 A CN 201910275322A CN 110036714 B CN110036714 B CN 110036714B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
- A01B79/02—Methods for working soil combined with other agricultural processing, e.g. fertilising, planting
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G18/00—Cultivation of mushrooms
- A01G18/10—Mycorrhiza; Mycorrhizal associations
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
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Abstract
The invention provides a method for regulating and controlling a carburation and biodiversity microbial inoculum of soil of an under-forest erosion inferior land, which improves the soil structure and the biodiversity by adding mycorrhizal fungi to a plant root system; the method comprises the following specific steps: and (4) screening species with strong nutrient absorption capacity to obtain mycorrhizal fungi. Aiming at the carbon fixation of the eroded inferior soil and the improvement of the eroded inferior soil into biological activity, the mycorrhiza application can adopt two modes, namely seed dressing and root application in the seedling stage. The invention has the advantages that: through the regulation and control of the microbial inoculum, the area of soil nutrient absorption of the root system of the vegetation eroded in the inferior land under the forest is increased, and the nutrient utilization efficiency is improved. The organic carbon of the soil is increased, the aggregate of the small-particle soil is increased, and the soil structure is improved. The soil surface and soil biodiversity increases.
Description
Technical Field
The invention relates to the technical field of ecological restoration engineering, in particular to a method for carbonizing soil with red soil erosion degenerated poor land and increasing biological diversity, and particularly relates to a method for improving an erosion degenerated soil structure by applying mycorrhizal fungi to a vegetation root system, increasing the organic carbon content of the soil and improving the biological diversity.
Background
The red soil of China is mainly distributed in the region south of the Yangtze river, and the total area is 218 ten thousand km222.7 percent of the total land area of the whole country, wherein the soil area of the red soil series is about 128 km2[1]. The area of hills in the red soil region of subtropical zones in the south has a large proportion, and soil erosion is serious due to the characteristics of high temperature, raininess, rich hydrothermal resources, same humidity and heat season and the like. The soil has low organic matter content, simple structure, acidity, and low nutrient storage and supply capacity, and simultaneously, the red soil parent mineral is strongly weathered by the moist heat in the same season to form a loose and deep weathered layer, so that the corrosion resistance of the soil is very low. In addition, the red soil area is densely populated, the human mole is prominent, large-area sloping fields are reclaimed, soil loss is aggravated, and land degradation is finally caused.
The mycorrhizal union formed by mycorrhizal fungi and higher plant nutrition root system is a ubiquitous symbiotic phenomenon in nature[2]. The main function of the plant mycorrhiza is to enlarge the absorption surface of the root system and increase the absorption capacity of elements (especially phosphorus) outside the absorption range of the original root hair. Mycorrhizal fungi can affect soil structure through regulation of plant communities, and hyphae of the mycorrhizal fungi can also affect the formation and stability of soil aggregates through biochemical and physical processes. In tropical forest of south Asia, arbuscular mycorrhizal fungi can increase soil microorganism by secreting GRSPMeasures such as measuring the quantity of the soil and promoting the carbon fixation of the soil, and the like promote the formation and the stability of large aggregates and enhance the stability of the soil structure[3]. In addition, the mycorrhiza also has improvement effect on neutral purple soil structure to different degrees, reflecting the diversity of arbuscular mycorrhizal fungi functions[4]. The arbuscular mycorrhizal fungi can improve the N, P absorption of the pasture, promote the growth of the pasture, improve the quality of the pasture and enhance the rhizosphere microbial biomass carbon of the pasture[5]. The mycorrhizal fungi can also increase plant resistance and improve survival rate in contaminated soil[6]。
Therefore, the mycorrhiza is selected to regulate and control the soil in the under-forest eroded inferior land area, reduce water and soil loss, and particularly improve the soil structure, increase effective aggregates and improve the organic carbon content of the soil, which is an important technology in vegetation recovery measures in the southern subtropical red soil eroded area.
The vegetation recovery method for red soil erosion degraded land in the prior art comprises the following steps: (1) screening plant varieties: by comprehensively analyzing species and planting modes for recovering the vegetation in the red soil of different erosion sites in southern China, red soil recovery varieties of granite red soil of different erosion sites are screened out; (2) construction of a planting pattern: 1. a arbor-shrub-grass mixed mode of the extreme strength red soil erosion site and a water-planting and grass-retaining mode; 2. a near-natural transformation mode of old head pine of a strong red soil erosion site; 3. the light red soil erosion site economic forest adopts a grass mulching mode. (3) Monitoring and evaluating the growth condition and water and soil conservation of the constructed vegetation community. However, the prior art has the following defects: (1) the time for screening the vegetation varieties is long, and the application range is small; (2) the planting mode is complex, the implementation consumes a large amount of manpower and financial resources, and the cost is high.
Reference to the literature
[1] Zhao, Huang Guo Du, Ma Yan Qin, problems and countermeasures faced by the red soil ecosystem in southern China [ J ] ecology bulletin, 2013(24): 7615-7622;
[2] the diversity of mycorrhiza and its significance to plant growth [ J ] applied ecology bulletin, 2003(09): 1565-;
[3] relation between arbuscular mycorrhizal fungi of forest arbuscular mycorrhizal fungi of subtropical forests in south asia [ J ] ecological science, 2018,37(05): 16-24;
[4] influence of arbuscular mycorrhizal fungi on the characteristics of neutral purple soil aggregates [ J ] ecology bulletin, 2011,31(02): 498-505;
[5] influence of Shiweiqi, Dingxiadong, Zhang Shirong, arbuscular mycorrhizal fungi on the biomass, nitrogen and phosphorus absorption of leymus chinensis and soil carbon [ J ]. North-west plant academic newspaper 2011,31(02): 357-362.
[6]Pennisi E.The secret life of fungi[J].Science,2004,304(5677):1620-1622.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a method for regulating and controlling the soil recarburization and biodiversity microbial inoculum of the inferior soil eroded in the forest, which can effectively solve the problems in the prior art.
In order to realize the purpose, the technical scheme adopted by the invention is as follows:
a method for regulating and controlling a microbial inoculum for carbonizing soil in an under-forest erosion inferior land, which improves the soil structure and the biodiversity by adding mycorrhizal fungi to a plant root system.
Further, a method for regulating and controlling soil recarburization and biodiversity microbial inoculum of the inferior soil caused by forest erosion comprises the following specific steps:
mycorrhizal fungi (AMF and ECM) were obtained. Investigating main vegetation types in the red soil area, and screening species with strong nutrient absorption capacity to obtain mycorrhizal fungi.
The mycorrhizal fungi are administered. Aiming at carbon fixation of soil in the eroded inferior land and improvement of microbial activity, mycorrhiza application can adopt two modes, namely seed dressing and root application in seedling stage.
The seed dressing is mainly suitable for arbor and shrub grass. And selecting proper arbor and shrub grass seeds according to local climatic conditions, stirring and mixing the seeds and the corresponding mycorrhizal fungi, and applying the mixture to soil.
The root is applied in the seedling stage, and the method is suitable for all vegetations. Firstly, culturing plants, dipping and applying slurry rich in mycorrhizal fungi to roots before transplanting after seedling emergence, and then transplanting the plants to a forest to erode a poor land.
Further, mycorrhiza is obtained in two ways:
1. directly purchasing mycorrhizal fungi strains corresponding to plants, culturing in a laboratory, and applying in the field.
2. Determining the areas with rich biodiversity around the areas needing to be repaired, and collecting a large number of vegetation rhizosphere soil samples to obtain the soil rich in mycorrhizal fungi.
Compared with the prior art, the invention has the advantages that: through the regulation and control of the microbial inoculum, the area of soil nutrient absorption of the root system of the vegetation eroded in the inferior land under the forest is increased, and the nutrient utilization efficiency is improved. The organic carbon of the soil is increased, the aggregate of the small-particle soil is increased, and the soil structure is improved. The soil surface and soil biodiversity increases.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail by the following embodiments.
A method for regulating and controlling the carburation of soil in poor forest erosion and the biodiversity microbial inoculum is characterized in that mycorrhizal fungi are added to the root system of a plant to improve the soil structure and improve the biodiversity.
The specific technical scheme is as follows
Obtaining mycorrhizal fungi. And (4) investigating main vegetation types in the red soil area, and screening species with strong nutrient absorption capacity. For these species, mycorrhiza can be obtained in two ways:
directly purchasing mycorrhizal fungi corresponding to plants, culturing in a laboratory, and applying in the field.
Determining the areas with rich biodiversity around the areas needing to be repaired, and collecting a large number of vegetation rhizosphere soil samples to obtain the soil rich in mycorrhizal fungi.
The mycorrhizal fungi are administered. Aiming at carbon fixation of soil in the eroded inferior land and improvement of microbial activity, mycorrhizal fungi can be applied in two modes, namely seed dressing and root application in seedling stage.
The seed dressing is mainly suitable for arbor and shrub grass. And selecting proper arbor and shrub grass seeds according to local climatic conditions, stirring and mixing the seeds and the corresponding mycorrhizal fungi, and applying the mixture to soil.
The root is applied in the seedling stage, and the method is suitable for all vegetations. Firstly, culturing plants, dipping and applying slurry rich in mycorrhizal fungi to roots before transplanting after seedling emergence, and then transplanting the plants to a forest to erode a poor land.
It will be appreciated by those of ordinary skill in the art that the examples described herein are intended to assist the reader in understanding the manner in which the invention is practiced, and it is to be understood that the scope of the invention is not limited to such specifically recited statements and examples. Those skilled in the art can make various other specific changes and combinations based on the teachings of the present invention without departing from the spirit of the invention, and these changes and combinations are within the scope of the invention.
Claims (2)
1. A method for regulating and controlling soil recarburization and biodiversity microbial inoculum of inferior soil caused by forest erosion is characterized by comprising the following steps: the mycorrhizal fungi are added to the root system of the plant to improve the soil structure and improve the biodiversity;
the method for regulating and controlling the soil recarburization and biodiversity microbial inoculum of the under-forest eroded inferior land comprises the following specific steps:
obtaining mycorrhizal fungi AMF and ECM; investigating main vegetation types in the red soil area, and screening species with strong nutrient absorption capacity to obtain mycorrhizal fungi;
administering a mycorrhizal fungus; aiming at carbon fixation of soil in eroded inferior land and improvement of microbial activity, mycorrhizal fungi can be applied in two modes, namely seed dressing and root application in seedling stage;
seed dressing, which is mainly suitable for arbor and shrub; selecting proper arbor and shrub grass seeds according to local climatic conditions, stirring and mixing the seeds and corresponding mycorrhizal fungi, and applying the mixture to soil;
applying roots in the seedling stage, and is suitable for all vegetation; firstly, culturing plants, dipping and applying slurry rich in mycorrhizal fungi to roots before transplanting after seedling emergence, and then transplanting the plants to a forest to erode a poor land.
2. The method of claim 1, wherein: mycorrhiza is obtained by adopting the following two ways:
(1) directly purchasing mycorrhizal fungi strains corresponding to plants, culturing in a laboratory, and applying in the field;
(2) determining the areas with rich biodiversity around the areas needing to be repaired, and collecting a large number of vegetation rhizosphere soil samples to obtain the soil rich in mycorrhizal fungi.
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| CN103392459B (en) * | 2013-06-18 | 2015-10-28 | 中国矿业大学(北京) | A kind of method for planting improving sand ground Survival rate of nursery stock |
| CN108271601A (en) * | 2018-01-09 | 2018-07-13 | 广西壮族自治区林业科学研究院 | A kind of method that Moringa cuts root mycorrhizal seedling raising |
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