Ecological construction method of stable vegetation for hilly reservoir estuary wetland

Abstract

The invention relates to a stable vegetation ecological establishing method for a hill type reservoir entry estuarine wetland. The method includes the steps of reservoir hydrological rhythm surveying, reservoir entry estuarine wetland zoning, reservoir entry estuarine habitat zoning surveying, determination of suitable plant species according to the survey result, and guaranteeing of localization and diversification of reservoir entry estuarine wetland plants; vegetational communities are established according to the result and the selected plant species. Herbaceous plants which can quickly revive after water subsiding and are resistant to flood are planted in a low zone. Shrubs and herbaceous plants which are resistant to flood and resistant to drought in a short period of time are planted in a middle zone. Arbors, shrubs and herbaceous plants which are resistant to flood and drought for a short period of time are planted in a high zone. Hygrophyte is planted in a riverway shoreland zone. Arbors, shrubs and herbaceous plants which are resistant to moisture and drought are planted in a zone within the elevation range of 2m above the common storage water level. The establishing method is simple, feasible and easy and convenient to operate, optimal disposition of the plants in different elevation zones of the reservoir entry estuarine wetland can be achieved, stable vegetation ecology can be quickly restored in an omni-bearing mode, and the high purification effect is achieved on pollutants of upland water.

Description

technical field [0001] The invention belongs to the technical field of ecological restoration engineering, and in particular relates to a method for ecologically constructing stable vegetation for hilly reservoir estuary wetlands. Background technique [0002] Hilly reservoirs have small topographic height difference, shallow water depth, large water surface area, and a large number of reservoir bays and gully forks in the reservoir. The vertical height difference of the water-fluctuation zone formed by the operation of the hilly reservoir is small, but the horizontal width is large, and the area of ​​the water-fluctuation zone is large. There are many rivers entering the hilly reservoir, forming a large area of ​​estuary wetland. During the operation of the reservoir, affected by the submersion of the water level, most of the original plants in the water-fluctuation zone died, the growth of the vegetation community was poor, and the ecological environment was relatively fr...

AI Technical Summary

Problems solved by technology

The estuary wetlands in the water-fluctuation zone are affected by the scour and erosion of the upstream water, and most of the existing achievements on vegetation restoration in the water-fluctuation zone do not take this factor into account

At the same time, the growth of vegetation communities is restricted by climate and meteorological conditions, and it is difficult to directly apply the research results of vegetation restoration in water-fluctuation zones of other regions

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