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Research On The Health Management Theory Of Ecological Irrigation District And Its Practice

Posted on:2019-08-21Degree:MasterType:Thesis
Country:ChinaCandidate:X L LiFull Text:PDF
GTID:2393330548469197Subject:Agricultural Soil and Water Engineering
Abstract/Summary:PDF Full Text Request
The status of irrigation districts in the entire agricultural production is extremely important.Irrigation districts are the foundation for the development of modern agriculture,ensuring food supply,maintaining the stability of the national economy,and building traditional irrigation districts into ecological irrigation districts,which can better ensure social,economic and ecological coordination of irrigation districts.development of.Ecological irrigation area health theory evaluates the health problems in traditional irrigation areas and guides the construction of irrigation areas into ecological irrigation areas.Based on the impact of the construction and development model of traditional irrigation districts on the regional ecological environment,combined with the national rural development policy,the concept of ecological irrigation district was proposed,and the construction of ecological irrigation district construction standards and ecological irrigation district construction measures were initially constructed.Combining relevant research on ecological irrigation areas with the theory of ecosystem health,the concept of ecological irrigation area health was put forward,and the ecological irrigation area health evaluation model was used to evaluate the health status of the irrigation area,identify problems in the irrigation area,and provide practical work for the construction of irrigation areas to become ecological irrigation areas.According to the construction standards of ecological irrigation areas,this article starts with ecological measures such as natural purification,biological chain relations,and resource recycling,and designs ecologically efficient irrigation areas.According to the theory of ecological irrigation area health,using the emergy theory to construct ecological evaluation system of ecological irrigation area.This article uses the evaluation system as an example to discuss the development status of Irrigation District from the aspects of society,economy and nature,and evaluate the sustainable development of the irrigation district.The main contents are as follows:(1)The completeness of ecological irrigation area theory.This paper treats the irrigation area as a compound ecological system of "artificial-nature-society" and combines the research of ecological irrigation areas to propose the concept of an ecologically efficient irrigation area and construct a theoretical system of ecological irrigation area.The ecological irrigation area theory adheres to the principle of giving priority to ecology,maintains the original culture of the irrigation area,improves the agricultural productivity of the irrigation area,and improves the ecological environment of the irrigation area,which is in line with the general requirements for rural revitalization.(2)Research on ecological theory system of ecological irrigation area.Based on the theoretical basis of the ecological irrigation area,combined with the theory of ecosystem health,emergy analysis methods and other theories to build a healthy theory system of ecological irrigation areas.Based on the criteria of ecological irrigation area construction,the health evaluation of irrigation areas,the analysis of health etiology of irrigation areas and the suggestions for the development of irrigation areas are the contents of ecological irrigation area research.The ecological health theory of ecological irrigation areas on the one hand evaluates the current health problems of irrigation areas in the traditional irrigation districts under the construction of ecological irrigation districts.On the other hand,it provides a standard and direction for the construction of traditional irrigation districts into ecological irrigation districts.(3)Ecological Irrigation District Health Evaluation Theory Practice.The ecological evaluation model of ecological irrigation district constructed by using emergy theory is applied to an irrigation area in the lower reaches of the Yellow River.The evaluation result is: The study area is a consumer system,and the current development status is not sustainable.The higher productivity and economic output in the study area are the result of development under a huge ecological pressure.Higher input of industrial auxiliary emergy in the study area and less input of internal renewable resources and production of more wastes,Make the research area in an unsustainable state of development.Ecological irrigation district is a new concept of irrigation district construction.Research on it and the construction of irrigation district into ecological irrigation district are still in the research stage.This article combines the relevant research of ecological irrigation areas,and carries out an innovative exploration of the meaning ofecological irrigation areas,which has a certain significance for the improvement of ecological irrigation area theory and further practice.The theory of ecological irrigation area health evaluation of the health status of an irrigation district in the lower reaches of the Yellow River provides a direction for the construction of the research area into an ecological irrigation area,and provides a reference model for the construction of irrigation areas in China.
Keywords/Search Tags:Ecological irrigation area, Ecological carrying capacity, Ecological irrigation area health, Emergy theory
PDF Full Text Request
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