Intensive manual assistance eco technique and system for restoring degraded beach zone

An ecosystem and technical system technology, applied in the field of lake ecological restoration technology and lake eutrophication control, can solve problems such as water quality deterioration, subtle adjustment dysfunction, biodiversity decline, etc., to improve water quality, improve water transparency, and benefit Restoration effect

Inactive Publication Date: 2007-05-09
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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  • Claims
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Problems solved by technology

However, with the continuous increase of human interference activities, due to people's unreasonable use of the lakeshore belt, the lakeshore erosion, hydrological conditions have changed, water quality has deteriorated, the natural structure of the transition zone has been destroyed, biodiversity has declined, and the aesthetic value of the landscape has decreased. The regulation function is hindered, and the damage and serious degradation of the lakeside ecosystem have seriously threatened the health, life and property safety of the people in the lake area.

Method used

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  • Intensive manual assistance eco technique and system for restoring degraded beach zone

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Embodiment

[0017] Accompanying drawing is the technical system diagram of the present invention. 60000m 2 The heavily polluted lake bay, the lakeside belt is seriously degraded, there are upright masonry embankments, steep banks, rocky banks and gentle slope grassland belts, the shoreline is more than 900m long, the water level varies about 80cm, and most of the water depth exceeds 7m from the shore. 2m. Two months after the project was implemented, the transparency of the water body increased from 40cm to 90cm, and has remained stable at 70-110cm since then. After the terrestrial plant floating bed has been in operation for 3 plant growth seasons (two summers and one winter), the water quality index TN is reduced from an average of 4.5 mg / L to 2 mg / L, and TP is reduced from an average of 0.15 mg / L to 0.05 mg. / L. After two years of maintenance and operation of the project, the emergent plants are dominated by reeds and cattails, with an area ranging from 2m 2 raised to 930m 2 ; Fro...

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Abstract

This invention provides an improved technical system for restoring deteriorated lakeside zone. The technical system comprises: utilizing variable-amplitude water level zone as the core, setting a certain range of land radiation zone and water radiation zone as the protective zone, clearing artificial interferences, restoring the base, stabilizing the bank slope, controlling near-bank wind and wave, improving large-area water body quality by using land plant floating bed technology, and improving water body transparency. The technical system selects local plant species as the pioneer species, and utilizes a combination of transplanting and introducing soil seed banks to restore and maintain the ecological system functions of lakeside zone. The technical system is highly adaptable to the environmental conditions, and has high operability and high ecological safety. The technical system can achieve good scenic effect during and after the restoration of lakeside zone.

Description

Technical field: [0001] The invention relates to a technology and system for ecological restoration of severely degraded lakeshores caused by human activities in local heavily polluted or eutrophic water bodies under the condition of artificial assistance, and belongs to the technical field of lake ecological restoration technology and lake eutrophication control technology . technical background: [0002] Lakes are one of the most important water resources in the world. The lake basin is one of the areas with the most dense population, the richest biodiversity, and the most developed economy and culture in my country. The total water resources of lakes (reservoirs) reach 638 billion m 3 , is 2.2 times the amount of groundwater that can be exploited, accounting for more than 50% of my country's urban drinking water sources, and nearly 1 / 3 of the country's grain production comes from lake basins. The ecological health and safety of lakes is an important guarantee for the sus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32
CPCY02W10/10
Inventor 叶春宋祥甫金相灿邹国燕张晴波于海婵
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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