Hydro-fluctuation belt wetland vegetation restoration proper species screening method

A technology for wetland vegetation and vegetation restoration, applied in botanical equipment and methods, horticultural methods, invasive species monitoring, etc., can solve the problems of lack of suitable species, single community structure, low survival rate, etc., and achieve the effect of preventing genetic drift

Inactive Publication Date: 2017-03-08
HAINAN UNIVERSITY
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for screening suitable species for wetland vegetation restoration in a hydro-fluctuation area, aiming to solve the above problems. There are problems such as lack of suitable species, species not suitable for hydrological environment, low survival rate, single community structure, difficulty in vegetation restoration, and poor ecological effect

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  • Hydro-fluctuation belt wetland vegetation restoration proper species screening method

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Embodiment 1

[0059] The embodiments of the present invention make full use of the principle of biodiversity to carry out the investigation of the original vegetation in the water-fluctuating area of ​​the reservoir, which is one of the effective ways to select suitable species for vegetation restoration in the water-fluctuating area of ​​the reservoir. Vegetation surveys are not only conducive to understanding the composition and distribution of species in these areas, but also their life forms, growth forms, community dominance, and community succession changes. According to the survey results, the suitable species suitable for these areas can be preliminarily deduced. For example, the survey of the vegetation in the drawdown area of ​​the Three Gorges Reservoir found that there are 61 families, 169 genera and 231 species of vascular plants in the drawdown area of ​​the Three Gorges Reservoir, most of which are herbaceous plants, including 105 species of annual herbs, 75 species of perenni...

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Abstract

The invention discloses a hydro-fluctuation belt wetland vegetation restoration proper species screening method. The method includes: investigating region vegetation, and preliminarily selecting species suitable for region vegetation restoration from the aspects of life form and growth form of species; adopting a soil seed bank germination experiment to screen to obtain omissive proper plants; inferring proper plants for vegetation restoration of a hydro-fluctuation belt according to vegetation investigation on the hydro-fluctuation belt and the soil seed bank germination experiment of the same; performing a waterlogging tolerance experiment on the proper plants, and screening proper species for region vegetation restoration; according to waterlogging tolerance and region hydrologic changing characteristics, arranging the proper species obtained by screening, and conducting practice demonstration of vegetation restoration. The method is conducive to preventing genetic drift caused by gene flow and maintaining a gene bank of local species stable, less prone to causing intrusion of foreign species and provides technical support and scientific guidance for large-area demonstration and popularization of vegetation restoration in regions like reservoir hydro-fluctuation belts, riparian zones and tidal flat wetland.

Description

technical field [0001] The invention belongs to the technical field of restoration of damaged ecosystems in ecology, and in particular relates to a method for screening suitable species for restoration of wetland vegetation in a drawdown area. Background technique [0002] The soil water content in areas such as reservoir drawdown areas, riparian zones, and tidal wetlands is often in a supersaturated state. Severe loss will aggravate sediment deposition in these water bodies. How to maintain the stability of reservoir banks, control soil erosion, and improve the quality of ecological environment and landscape effects in these special areas has become a research hotspot for ecologists at home and abroad. At present, the treatment measures for degraded ecosystems such as reservoir drawdown areas, riparian zones, and tidal wetlands mainly include engineering measures (concrete engineering) and biological measures. Engineering measures are not only costly, but also do not have...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G7/00A01G7/06A01C1/02
CPCA01C1/02A01G7/00A01G7/06Y02A40/22Y02A90/40
Inventor 杨帆苗灵凤丁扬蒲玉瑾张丽佳
Owner HAINAN UNIVERSITY
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