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Biomass felt, preparation method thereof and application in grassland recovery

A technology of biomass and fiber, applied in botany equipment and methods, applications, lawn growth, etc., can solve the problems of low survival rate of supplementary species, pollute the environment, and unsatisfactory comprehensive treatment effects, so as to save capital investment and promote Plant growth, money saving effect

Active Publication Date: 2020-08-07
HEBEI UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of biomass felt and its preparation method and its application in grassland restoration, so as to solve the problems of existing methods polluting the environment, low survival rate of supplementary species, and unsatisfactory comprehensive treatment effect

Method used

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  • Biomass felt, preparation method thereof and application in grassland recovery
  • Biomass felt, preparation method thereof and application in grassland recovery
  • Biomass felt, preparation method thereof and application in grassland recovery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The preparation of embodiment 1 biomass felt

[0038] (a) 70 parts by weight of wool fiber, 20 parts by weight of flax fiber, and 10 parts by weight of polylactic acid fiber are placed in water, and the fiber raw material is opened into a single fiber state in water, and the stirring is started to fully mix the fiber raw material Evenly, get the fiber suspension slurry, then send the fiber suspension slurry to the non-woven machine;

[0039] (b) Adjust the needling speed of the non-woven machine to 800 times / min, and the needling depth to 5 mm, and use the needling forming non-woven technology to pierce the fiber bundles into the fiber web, so that the fibers in the fiber web are entangled with each other, thereby obtaining a shape Biomass felt material;

[0040] (c) Send the biomass felt material in step (b) into a roller dryer for drying, and finally obtain a finished biomass felt product with a thickness of 3mm, a tensile force of 10N / 5cm, a light transmittance of 6...

Embodiment 2

[0054] Test location: severely degraded saline-alkali grassland in Chabei management area (vegetation coverage is less than 10%);

[0055] Biomass felt selection: thick felt with a width of 1 meter prepared in Example 1;

[0056] Supplementary pasture: choose drought-tolerant and saline-alkali-tolerant Elymus and wild barley;

[0057] The experiment adopts randomized block design, each treatment is repeated 4 times, the control group is not covered, other conditions and operations are the same as the test group, the results are shown in Table 4 and figure 2 shown.

[0058] Table 4:

[0059] deal with Grass emergence rate (%) Vegetation height (cm) Coverage(%) control 4.6±0.55b 8.6±1.06b 5.6±0.65b Biomass felt 65.8±2.72a 25.6±1.26a 25.6±1.20ba

[0060] It can be seen from Table 4 that the coverage of biomass felt significantly improved the forage emergence rate, height and vegetation coverage of the experimental plot. The forage emergenc...

Embodiment 3

[0062] Test site: Deserted grassland in the background of Yuanshan sub-project area, Yudaokou Township, Weichang County, Chengde City, Hebei Province (vegetation coverage <5%);

[0063] Supplementary sowing grass: choose suitable and drought-resistant Elymus and wheatgrass among the surrounding vegetation;

[0064] Biomass felt selection: thick felt with a width of 1 meter prepared in Example 1;

[0065] 60 test plots covered with biomass felt and supplementary seeding were arranged, each plot was 16 square meters. The difference between the method and the prior art is that the combination of covering the fenced desertified grassland with biomass felt and supplementing grass seeds. The control group was not covered, and other conditions and operations were the same as those of the test group. The results are shown in Table 5 and image 3 shown.

[0066] Table 5: First Year

[0067] deal with Germination rate Survival number (strain / m2) Number of tillers (pl...

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Abstract

The invention provides biomass felt, a preparation method thereof and application in grassland recovery. The biomass felt is prepared from raw materials including, by weight, 65-75 parts of wool fiber, 15-25 parts of linen fiber, 5-15 parts of maize straw or polylactic acid fiber. The biomass felt is prepared through a needling molding non-woven technology. The application of the biomass felt in recovery of grassland in serious degeneration, salinization and desertification comprises the following steps that a, ploughing treatment is carried out on the grassland in serious degeneration and salinization to form ridges and furrows; b, selected gramineous forage grasses or legumes are reseeded; and c, after reseeding, the land is covered with the biomass felt, and then, the biomass felt is covered with a thin layer of soil and covered tightly. The biomass felt can retain soil moisture, reduce the temperature difference of desertified soil, the harm to plant seedlings from the high temperature is avoided, and the rate of emergence is high; and the biomass felt can be naturally degraded, environment pollution is avoided, and the soil nutrient can also be increased after degradation.

Description

technical field [0001] The invention relates to the technical field of degraded grassland restoration and management, in particular to a biomass felt, a preparation method thereof and an application in grassland restoration. Background technique [0002] Grassland accounts for 41% of my country's land area and plays an important role in grassland animal husbandry production and maintaining ecological functions. However, due to factors such as natural factors and artificial overgrazing, grasslands have been seriously degraded. Grassland salinization and desertification have led to the degradation of species communities, the reduction of biodiversity, the decline of grassland production capacity, and the decline of ecological functions. Moreover, bare sandy land and saline-alkali land will accelerate the evaporation of rainwater, reduce water storage, move up the salt in the soil, and accelerate grassland degradation. At present, there are engineering measures, material meas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/46D04H1/32D04H1/12D04H1/4382A01G13/02A01G20/00
CPCD04H1/46D04H1/32D04H1/12D04H1/4382A01G13/0268A01G20/00D10B2211/02D10B2201/04D10B2331/04
Inventor 刘桂霞吴儒琳王丰毅张晓宇魏少翀刘振
Owner HEBEI UNIVERSITY
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