Self-organization ecological restoration method for windward lakeside zone
An ecological restoration, lakeside belt technology, applied in the fields of botany equipment and methods, applications, marine engineering, etc., can solve the problems of self-organization ability difficult to achieve restoration, habitat deterioration, ecosystem degradation and other problems
Inactive Publication Date: 2012-05-09
ANHUI ACADEMY OF ENVRIONMENTAL SCIENCE RESEARCH +1
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[0003] The shoreline on the windward side is a relatively fragile lakeside ecosystem. Once the vegetation is damaged, wind and wave erosion will cause a series of habitat deterioration such as matrix instability and hydraulic shearing, and the ecosystem will immediately enter a vicious cycle of degradation. Capability is difficult to achieve repair
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[0018] The present invention will be further described below in conjunction with specific examples, but the protection scope of the present invention is not limited thereto.
[0019] Choose the 400m lakeside belt on the windward side of the large lake, where the ecological degradation is serious and the aquatic vegetation completely disappears. During the dry season in February, dredgers 1 were used to carry out excavation operations, and a number of earth dams 2 perpendicular to the shoreline 4, adjacent to each other at a distance of 6m, offshore in depth 100m, and 200-500mm above the water surface were constructed as emergent vegetation. Restore growth zone 3; collect local reed rhizomes in nearby ponds from March to April, keep the aboveground stems of 300-500 mm, and keep the underground stems intact and start to germinate; before the end of April, the 6 plants / m 2 Density, complete the planting of the collected reed rhizomes in the emergent vegetation recovery growth are...
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The invention discloses a self-organization ecological restoration method for a windward lakeside zone. The method comprises the following steps of: cutting a high slope or abrupt slope according to a gradient situation of a lakeside line so as to enlarge the longitudinal depth of a vegetation revetment as much as possible; selecting different types of vegetations for restoration for different high-elevation regions according to a fluctuation rule of water level of a lake reservoir; restoring vegetation consisting of different types of trees, shrubs and grasses or mixed vegetation for the beach line above the highest water level; restoring emerging vegetation below the highest water level, wherein the emerging plants with developed roots and strong fixation capacity are mainly selected; restoring the emerging plants below the highest water level; performing tunneling operation by using a dredger in the dry sea seasons after and before spring; building a plurality of earth dams leadingto the lake reservoir serving as an emerging plant restoration and growth region along the beach line at intervals; and restoring the emerging plants in a rootstock transplanting mode. The degradation direction of an ecological system is turned through a limited engineering guide measure, and the self-organization capacity is gradually restored by depending on the ecological system, so that the representation of an original structure and the function is finished.
Description
technical field [0001] The invention relates to eutrophication control and ecological restoration of lake reservoirs, in particular to ecological reconstruction after ecological degradation of the shoreline on the windward side. technical background [0002] The lakeside belt is an important storage and consumption place for surface sources entering the lake. It is also a special ecosystem with rich biodiversity and an important gene bank and seed bank for the lake. Therefore, the ecological restoration of the lakeside zone has always been an important part of the treatment of eutrophication in lake reservoirs. [0003] The shoreline on the windward side is a relatively fragile lakeside ecosystem. Once the vegetation is damaged, wind and wave erosion will cause a series of habitat deterioration such as matrix instability and hydraulic shearing, and the ecosystem will immediately enter a vicious cycle of degradation. Capabilities are difficult to implement and repair. There...
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IPC IPC(8): E02B3/00E02B3/04E02B3/06A01G1/00A01G23/00
Inventor 陈云峰张彦辉李祥阚乃喜
Owner ANHUI ACADEMY OF ENVRIONMENTAL SCIENCE RESEARCH