Method for protecting and restoring wetland

Abstract

The invention discloses a method for protecting and recovering wetland. The method comprises the following steps that (a) field investigation is conducted in a to-be-restored wetland area to comprehensively obtain natural condition information of the ecological wetland, wherein the natural condition information comprises hydrological characteristics, soil characteristics and plant characteristics;(b) according to the obtained natural condition information, fences are established in the to-be-restored wetland area and around the to-be-restored wetland area for closed breeding and livestock reduction; (c) different source soil plant seed libraries are mixed, wherein species comprise trees, shrubs, emergent plants, submerged plants and floating plants; (d) river water, well water or reclaimed water from a sewage treatment plant is utilized for irrigating the wetland multiple times until the water level of a surface layer is kept at 6-11 cm; (e) planting pits are dug in wetland soil, seedpellets are applied into the planting pits, and the planting pits are filled with soil with the depth of 7-10 cm for burying storage. By means of the method, various arbors, shrubs and aquatic plantsare adopted for mixed growth to construct a wetland plant community, the plant diversity of the wetland is improved, and meanwhile the pollutant purification capability of the wetland is improved.

Description

technical field [0001] The invention relates to the technical field of wetland protection, and more specifically relates to a wetland protection and restoration method. Background technique [0002] With the development of human society, economy and technology, coupled with the change of global climate, wetlands around the world are in the doom of continuous degradation or about to be degraded, and the severity is increasing; in the case of a large number of loss of natural wetlands, the degraded wetlands Restoration and reconstruction have become the focus of people's attention; most wetland restoration work starts from the aspects of wetland substrate, hydrological process, wetland habitat restoration, etc. Among them, the first step of wetland restoration is vegetation restoration. Only when vegetation is restored can it attract Animals inhabit here and gradually form a stable community and ecosystem. However, there are many difficulties in vegetation restoration, which a...

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Problems solved by technology

[0002] With the development of human society, economy and technology, coupled with the change of global climate, wetlands around the world are in the doom of continuous degradation or about to be degraded, and the severity is increasing; in the case of a large number of loss of natural wetlands, the degraded wetlands Restoration and reconstruction have become the focus of people's attention; most wetland restoration work starts from the aspects of wetland substrate, hydrological process, wetland habitat restoration, etc. Among them, the first step of wetland restoration is vegetation restoration. Only when vegetation is restored can it attract Animals inhabit here and gradually form a stable community and ecosystem. However, there are many difficulties in vegetation restoration, which are affected by geological conditions, environmental influences, vegetation selection, and vegetation cultivation. Currently, the vegetation restoration of wetlands generally adopts artificial transplanting. This technology usually only selects one or a few species for transplanting, so it is still difficult to achieve the purpose of wetland biodiversity restoration, and the selected plants are often difficult to balance the survival rate and wetland economic benefits, such as water purification, consolidation and Soil improvement, etc.; therefore, natural wetland ecological restoration, selection of plant species and plant planting techniques are particularly important

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