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Restoration method for small river sand excavation slash
The invention relates to the technical field of ecological restoration engineering, in particular to a restoration method for a small river sand excavation slash. A retaining dam is constructed in the low-water period of a small river; a sand pit of the sand excavation slash and a river bottom are flattened through a large machine; biodegradable straw matting is laid and fixed; the river is longitudinally segmented; submerged plants which have roots with soil are planted on the straw matting; water is guided back in a segmented manner; and after one side is restored, the other side of the sand excavation slash is restored with the same method, and therefore ecological restoration of the sand excavation slash is achieved. A segmented governance manner is adopted for the small river sand excavation slash in the low-water period, and therefore governance difficulty is effectively reduced. The biodegradable straw matting is laid in a combined manner. An excellent habitat is provided for the submerged plants, other animals, plants and microorganisms, and biological diversity is improved. Pioneer species and successional species are combined, and therefore succession and evolution of the submerged plants are facilitated, and the method is an economical and effective ecological restoration method for the river sand excavation slash.
Restoration method for small river sand excavation slash
The invention relates to the technical field of ecological restoration engineering, in particular to a restoration method for a small river sand excavation slash. A retaining dam is constructed in the low-water period of a small river; a sand pit of the sand excavation slash and a river bottom are flattened through a large machine; biodegradable straw matting is laid and fixed; the river is longitudinally segmented; submerged plants which have roots with soil are planted on the straw matting; water is guided back in a segmented manner; and after one side is restored, the other side of the sand excavation slash is restored with the same method, and therefore ecological restoration of the sand excavation slash is achieved. A segmented governance manner is adopted for the small river sand excavation slash in the low-water period, and therefore governance difficulty is effectively reduced. The biodegradable straw matting is laid in a combined manner. An excellent habitat is provided for the submerged plants, other animals, plants and microorganisms, and biological diversity is improved. Pioneer species and successional species are combined, and therefore succession and evolution of the submerged plants are facilitated, and the method is an economical and effective ecological restoration method for the river sand excavation slash.
Restoration method for small river sand excavation slash
ZHAO SHANLIN (author) / CUI SHUANG (author) / LI PING (author) / SHANG LIYAN (author)
2015-12-09
Patent
Electronic Resource
English
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
Ecological restoration and soil matrix improvement method for sand excavation waste side slope
| European Patent Office | 2021
Engineering Index Backfile | 1889