A kind of bio-based covering material for increasing precipitation infiltration and reducing surface evaporation in tidal flat soil and its preparation method

A technology of covering material and biomass material, applied in the field of bio-based covering material and its preparation, can solve the problem of not finding literature reports, etc., and achieve the effects of improving sustainable development, increasing soil precipitation infiltration, and increasing precipitation infiltration amount

Active Publication Date: 2020-10-16
HOHAI UNIV
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Problems solved by technology

[0006] So far, no literature reports related to the subject of the present invention have been found

Method used

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  • A kind of bio-based covering material for increasing precipitation infiltration and reducing surface evaporation in tidal flat soil and its preparation method
  • A kind of bio-based covering material for increasing precipitation infiltration and reducing surface evaporation in tidal flat soil and its preparation method
  • A kind of bio-based covering material for increasing precipitation infiltration and reducing surface evaporation in tidal flat soil and its preparation method

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Embodiment Construction

[0032] The present invention will be described in detail below in conjunction with specific embodiments and drawings, but the scope of the present invention is not limited to specific embodiments.

[0033] Isolation and identification of strains

[0034] The soil around the rhizosphere of plants growing sporadically in the bare tidal flats of Jiangsu tidal flats was collected, stored at low temperature, and the functional strains were isolated by using hyperosmotic PDA medium. The medium was prepared according to the amount of 1L. Put the pieces in water and boil, boil for 30 minutes after boiling, filter with gauze, add 20g of ordinary sucrose and 50g of sodium chloride to the filtrate, set the volume to 1000ml, keep the pH value natural, and sterilize at 115°C for 30 minutes.

[0035] A strain with abundant hyphae and a consolidation effect on fibrous substances was isolated, and the identification showed that the main biological characteristics of the strain were: the flora...

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Abstract

The invention relates to a bio-based covering material for increasing precipitation infiltration and reducing surface evaporation of tidal flat soil and a preparation method thereof, belonging to the technical field of soil biological improvement. The present invention consolidates the biomass material with the mycelia formed during the growth process of the microbial strain Mucor macula isolated from the saline-alkali soil of the Jiangsu tidal flat, forming a felt-like covering with good airtightness, which can increase the water conduction of the surface layer , effectively increase the infiltration of precipitation in tidal flat saline-alkali land, reduce soil evaporation, and reduce the speed of soil return to salt. Its precipitation infiltration has increased by 2 times, soil water evaporation has decreased by 63%, soil organic matter has increased by 5 times, and the survival rate of planting salt-tolerant plant quince has increased by 12 times.

Description

technical field [0001] The invention relates to a bio-based covering material for increasing precipitation infiltration and reducing surface evaporation in tidal flat soil and a preparation method thereof, belonging to the field of saline-alkali soil improvement biotechnology. Background technique [0002] my country's mainland coastline starts from the mouth of the Yalu River on the border between China and North Korea in the north, passes through provinces, cities, and autonomous regions such as Liaoning, Hebei, Tianjin, Shandong, Jiangsu, Shanghai, Zhejiang, Fujian, Guangdong, and Guangxi, and ends at the mouth of the Beilun River on the border between China and Vietnam. 000 kilometers, with a large area of ​​tidal flats. For example, the tidal flat area in Jiangsu is more than 10.31 million mu, and the coastline is 954 km long, accounting for more than 1 / 4 of the country, and it continues to silt up at a rate of 30,000-50,000 mu every year. Shandong tidal flat covers an ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N1/14C12R1/785C09K101/00
CPCA01B79/02C09K17/16C09K2101/00C12N1/14C12N1/145C12R2001/785Y02A40/22
Inventor 陈立华郑金海程瑶徐向红金秋张欢韩瑞
Owner HOHAI UNIV
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