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Subtropical zone karst region degenerated site vegetation recovery soil restoration material, and production method thereof

A technology for soil remediation and vegetation restoration, applied in the field of soil remediation, to achieve the effect of increasing porosity, reducing pH value, and improving physical and chemical properties

Inactive Publication Date: 2018-09-28
INST OF FOREST ECOLOGY ENVIRONMENT & PROTECTION CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there are many technical difficulties in carrying out vegetation restoration in karst areas

Method used

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Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: The present invention is a kind of subtropical karst area degraded site vegetation recovery soil restoration material, and this soil restoration material is a kind of organic-inorganic composite material attached to acid-producing microorganisms, and this material is composed of acid-producing microorganisms and has the functions of water retention and fertilizer retention. The functional organic-inorganic hybrid material is produced after a certain period of mixed fermentation. The acid-producing microorganisms are a class of Flavobacterium, Pseudobacterium, and Pseudomonas that can produce acid substances isolated from the soil where some leguminous plants Dalbergia, Rendou, Apicalcarpa, Leucaena or Amorpha plants grow in the karst area. Composed of bacteria belonging to the genus Monas; the organic-inorganic mixed material with the functions of water retention and fertilizer retention is composed of 50-100% of peat, 0-30% of crushed agricultural and fore...

Embodiment 2

[0017] Embodiment 2: a kind of production method of subtropical karst area degradation site vegetation restoration soil restoration material, produces and obtains according to the following steps: (1) peat, pulverized agricultural and forestry plant waste, clay mineral are stirred and mixed according to the above-mentioned ratio, add water moistening Wet until the water content is 60-65% to obtain an organic-inorganic hybrid material, and use urea to adjust the C / N ratio, so that the C / N ratio of the mixed material is between 40-80; (2) add the separated Bacterial liquid, stirred and mixed evenly to obtain a mixed material, and the mixed material was built and fermented. The fermentation time was: 7-10 days in summer and autumn, and 15-20 days in spring and winter; finally obtained energy with a moisture content of 20-40%. Soil remediation materials for restoration of degraded site vegetation in subtropical karst areas.

[0018] The above-mentioned soil remediation materials c...

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Abstract

The invention provides a subtropical zone karst region degenerated site vegetation recovery soil restoration material, and a production method thereof. The subtropical zone karst region degenerated site vegetation recovery soil restoration material is produced through mixing fermenting of acid producing microorganism with an organic-inorganic mixed material with certain fertilizer and water retention functions for a certain period of time. Loading of the acid producing bacteria is adopted, so that organic acid substances produced by the acid producing bacteria possess a plurality of active groups including carboxyl group, hydroxyl group, alcoholic hydroxyl group, sulfonic group, and amino acid group; and weak acidity, colloid adsorption performance, ion exchange performance, complexing performance, chelating performance, and surface activity are achieved; the subtropical zone karst region degenerated site vegetation recovery soil restoration material is capable of reacting with carbonates, degrading carbonates and releasing nutrients immobilized in the carbonates for using by plants and microorganisms; according to applications of the subtropical zone karst region degenerated sitevegetation recovery soil restoration material, organic acids generated in adhered microorganisms in growth process are capable of reducing soil pH value, increasing soil porosity, and improving soil physical and chemical performance; the subtropical zone karst region degenerated site vegetation recovery soil restoration material also possesses relatively excellent water retention and fertilizer conservation functions, and is capable of promoting vegetation recovery effectively.

Description

technical field [0001] The invention belongs to the field of soil remediation, and in particular relates to a soil remediation material for restoration of vegetation on degraded sites in subtropical karst areas and a production method thereof. Background technique [0002] Abundant carbonate rocks in karst areas are characterized by easy leaching and slow soil formation, and the vegetation ecosystem has low ability to resist external influences, and is prone to rocky desertification. China's karst areas are mainly concentrated in the southwest region, accounting for more than one-third of the area in the southwest region. Due to the high mountains and steep slopes, warm climate, and abundant and concentrated rainfall in this region, erosion power and dissolution conditions are provided for the formation of rocky desertification. Therefore, there are many technical difficulties in carrying out vegetation restoration in karst areas. [0003] According to the characteristics o...

Claims

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Application Information

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IPC IPC(8): C09K17/40C09K101/00C09K109/00
CPCC09K17/40C09K2101/00C09K2109/00
Inventor 刘世荣张小平王晖卢立华
Owner INST OF FOREST ECOLOGY ENVIRONMENT & PROTECTION CHINESE ACAD OF FORESTRY
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