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Tongjiang lake aquatic vegetation restoring cultivation method

A technology of aquatic vegetation and cultivation methods, applied in the field of ecological restoration of aquatic vegetation in shallow lakes, can solve the problems of no model and immature aquatic vegetation restoration technology, and achieve the effects of reducing waste, reducing the workload of artificial cultivation, and increasing biodiversity

Inactive Publication Date: 2018-08-10
ANHUI UNIVERSITY
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Problems solved by technology

However, at present, the technology of aquatic vegetation restoration in shallow lakes is not mature, and there is no fixed model

Method used

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  • Tongjiang lake aquatic vegetation restoring cultivation method
  • Tongjiang lake aquatic vegetation restoring cultivation method

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specific Embodiment

[0057] Reasonably screen the dominant species of aquatic plants in Tongjiang lakes. With the support of the restoration experiment project of Shengjin Lake National Nature Reserve, three experimental areas of Jinbaowei, Yannest and Zhacidunwei in Shengjin Lake National Nature Reserve Carried out research on aquatic plant planting technology, explored the most suitable planting methods for various aquatic plants suitable for the hydrological conditions of Tongjiang lakes, and successfully restored aquatic vegetation.

[0058] The specific implementation steps and requirements include:

[0059] 1), species selection:

[0060] Through field surveys and literature review, the dominant species of aquatic vegetation in the middle and lower reaches of the Yangtze River and the severely degraded species of submerged plants in Shengjin Lake were found, and the reasons for their degradation were analyzed. It was found that overfishing and water transparency are the factors that determin...

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Abstract

The invention discloses a Tongjiang lake aquatic vegetation restoring cultivation method. The method is characterized in that any one or more of Potamogeton wrightii Morong, Myriophyllum spicatum L.,nelumbo nucifera, Nuphar pumilum (Hoffm.) DC., zizania latifolia, Vallisneria spinulosa S.Z.Yan and hydrilla verticillata are selected as cultivated aquatic plant tool species; the best time for aquatic plant cultivation is selected to be from early April to mid-April; the controlled best cultivation water level is 10cm-50cm; seedlings of the Potamogeton wrightii Morong, Myriophyllum spicatum L.,Nuphar pumilum (Hoffm.) DC., zizania latifolia, Vallisneria spinulosa S.Z.Yan and hydrilla verticillata are used, and underground rhizomes and seeds of the nelumbo nucifera are used; in order to facilitate seed germination and seed seedling growth diffusion, tractor-ploughing is performed on a lakeshore-type recovery area in dry season; and hypophthalmichthys molitrix and aristichthys nobilis areput to improved water quality, and herbivorous fishes such as grass carps and fishes fed on benthic animals are prohibited from being stocked. According to the method, not only is waste of seed seedlings reduced, but also artificial cultivation work amount is reduced, and a restoring method achieving a required covering degree is provided to increase biodiversity of lakes, thereby making the ecosystem more stable and not easily destroyed.

Description

technical field [0001] The invention relates to an ecological restoration technology for aquatic vegetation in shallow lakes, in particular to a method for restoring and cultivating aquatic vegetation in lakes through rivers. Background technique [0002] In recent years, with the increase of population, the aquaculture industry has developed rapidly, and the "overgrazing" of the lake fishery, especially the seine culture has caused serious damage to the aquatic vegetation of the lakes connected to the river, the submerged plants have almost disappeared, and the degradation of ecosystem productivity has become prominent. . It is of great ecological significance to maintain the structural integrity, functional stability and rich biodiversity of Tongjiang lake wetland in Anhui, and to effectively realize biodiversity protection. Aquatic vegetation cultivation method is a relatively important aquatic ecosystem restoration technology currently applied, which is conducive to mai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/00A01G33/00A01K61/10
CPCA01G22/00A01G33/00A01K61/10Y02A40/81
Inventor 袁素强周忠泽林志周立志张金羽商乃萱孟诗
Owner ANHUI UNIVERSITY
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