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Accueil du site → Master → Chine → 2020 → Ecological Restoration Design of Fish Pond Constructed Wetland in Northwest Arid Area ——Take the Yellow River Nature Reserve in Qiachuan Town as an Example

Chinese Academy of Forestry (中国林业科学研究院) 2020

Ecological Restoration Design of Fish Pond Constructed Wetland in Northwest Arid Area ——Take the Yellow River Nature Reserve in Qiachuan Town as an Example

卢佳琳

Titre : Ecological Restoration Design of Fish Pond Constructed Wetland in Northwest Arid Area ——Take the Yellow River Nature Reserve in Qiachuan Town as an Example

Auteur : 卢佳琳

Grade : Master’s Theses 2020

Université : Chinese Academy of Forestry (中国林业科学研究院)

Résumé
Wetlands in arid areas of northwest China are of great significance to the regional ecology and landscape pattern,but the wetland system is fragile due to the influence of climate and human disturbance.On this basis,there are a series of problems such as wetland water pollution and landscape damage in the process of artificial cultivation,which seriously threaten the sensitive and fragile wetland environment in northwest arid region.Through literature research,project practice and species importance analysis,this paper discusses the design method of ecological restoration of fishpond wetland in arid area of northwest China.Traditional foundation pond system is usually regarded as a typical example of agricultural development,and its production benefit is studied.This paper focuses on the ecological benefits of the traditional pond system,and compares it with the modern pond wetland in terms of system structure and function,thus reaching the conclusion that the pond wetland should pay attention to strengthening the interaction between water and land,and enhancing the material circulation and energy flow in the system in the process of ecological restoration.And the characteristics and protection countermeasures of wetlands in northwest arid areas were explored,and finally the goals,principles and technologies of ecological restoration design of fishpond wetlands in northwest arid areas were established based on these basic theories.Relying on theoretical basis and case analysis,the existing ecological problems of fish pond wetland in Qiachuan Yellow River Nature Reserve were solved.Through the project.By combing the planning and positioning of the project area and the basic situation,and analyzing the landscape composition of wetland plants by means of species importance analysis,it is concluded that there are four problems in wetland,such as bank cutting,vigorous growth of xerophytes,lack of wetland landscape and water pollution.Therefore,suitable wetland ecological restoration technologies are selected and classified into three directions : water environment restoration design,wetland topography restoration design and wetland biology and habitat restoration design.Finally,it is concluded that the ecological restoration of fishpond constructed wetland in arid area of northwest China should be based on ecological water saving,pay attention to strengthening the interaction between water and land,and shape various habitats to promote biodiversity restoration.It is hoped that this paper can provide some inspiration for the ecological restoration design of fishpond constructed wetland in northwest arid area in the future.

Mots clés : Fish ponds ;Arid area ;Ecological restoration ;Wetland landscape ;

Présentation (CNKI)

Page publiée le 28 mars 2022