Construction technique for beach saline land landscape water aquatic plant system

A technology of aquatic plants and saline-alkali land, applied in the field of ecological restoration of landscape river water environment, can solve the problems of difficult cultivation of halophytes, less consideration of environmental conditions, and difficulties in the settlement of aquatic plants, and achieve considerable economic benefits, reduce content, and invest little effect

Inactive Publication Date: 2008-04-16
TIANJIN ACADEMY OF ENVIRONMENTAL SCI
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Problems solved by technology

In recent years, scientists at home and abroad have conducted a lot of research on the restoration of river courses and lake water ecosystems and the ecological restoration of saline-alkali soils, and have made some progress, but they have also encountered many difficulties. The reason is that on the one hand, salt The cultivation of raw plants is difficult and takes a long time. Even if the aquatic plants

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  • Construction technique for beach saline land landscape water aquatic plant system
  • Construction technique for beach saline land landscape water aquatic plant system

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Embodiment

[0027] 1. A comprehensive survey of the status quo of soil and vegetation systems in reclaimed water landscape rivers in Tianjin Economic-Technological Development Zone. The results show that the river soils have high viscosity, poor air permeability, high salinity, and serious secondary salinization of the soil. The vegetation consists of sporadic Suaeda salsa, Suaeda salsa plus reeds are the main communities, which provide reliable data and background support for subsequent ecological restoration.

[0028] 2. Screen salt-tolerant emergent, submerged and terrestrial pioneer plants

[0029] Screening of salt-tolerant and emergent pioneer plants: In the laboratory, aqueous solutions with salt concentrations of 6000mg / L, 9000mg / L, 10000mg / L, 12000mg / L, 14000mg / L, 15000mg / L and 18000mg / L were prepared respectively as Water for plant cultivation. Trim the emergent plants water onion, cattail, canna and plantain grass and plant them in plastic buckets with a volume of about 50L an...

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Abstract

The invention discloses a construction technique for water plant system of scenic water in coastal saline-alkali area. The method aims at the characteristics such as high salt content in the soil and the water in scenic riverways in coastal saline-alkali area and utilizes highly saline reuse water washing salinity technique and salt-proof techniques such as raw soil mixed with sand and salt discharge subdrain, etc. to reduce the salt content of the soil and water of the riverway. Meanwhile, in respects of increasing the ornamental performance and strengthening the purificatory function, water pioneer plants and land pioneer plants suitable for the ecological restoration of the scenic riverways in coastal saline-alkali area are selected preferably, and are subject to domestication and optimal distribution, thus the water plant system of scenic water in coastal saline-alkali area is successfully constructed, thereby improving the environmental scenery effectively and restoring the quality of the water gradually.

Description

technical field [0001] The invention relates to the construction of an aquatic plant system for a coastal saline-alkali land landscape water body, and belongs to the technical field of landscape river water environment ecological restoration. Background technique [0002] At home and abroad, municipal landscape rivers and lakes play a very important role in maintaining the overall ecological environment of the city. In order to prevent the water quality from deteriorating, on the one hand, the indicators of nutrients such as nitrogen and phosphorus discharged into the landscape water are strictly limited; For the polluted landscape water body, effective water purification measures should be taken to improve the water quality and ecological environment of the landscape water body. For this, the environmental restoration techniques usually used include: chemical methods, physical methods and ecological methods. Judging from the development trends of the above three technologie...

Claims

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Application Information

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IPC IPC(8): E02B3/00E02B3/04A01G31/00C02F3/32
CPCY02A20/402Y02W10/10
Inventor 唐运平张志扬郑先强曾猛
Owner TIANJIN ACADEMY OF ENVIRONMENTAL SCI
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