Research On Action Mechanism And Quantitative Method Of Human-water Relationship

Water is the source of life, which is one of the motive force of the human economic development and social progress and the material base of realizing the sustainable development. Human-water relationship occupies the very important position in the process of social development. And the quantitative research of the interaction in human-water relationship is the frontier problem of crossover study of international subjects, such as hydrology and water resources, environmental disciplines, the humanities nowadays. It is also one a challenge to the great theories and practices of regional sustainable development, and even in the world. So, learning about the human-water relationship and researching its interaction is the basis of establishing regulation and control measures and the needs to realize the reasonable development and utilization of water resources, economic and social sustainable development, ecological environment protection and integrated water resources management.The domestic and foreign research present situation and existing problems are summarized in this paper, then study is began with the analysis of the connotation and concept of human-water relationship, the human-water system structure. The research content mainly includes the following aspects:(1) Human-water system structure and the mechanism of action have been studied. System structure is analyzed from three aspects of human system, water system and human-water system basing on the concept and connotation of human-water relationship. Then, the mechanism of action of human-water relationship is discussed by defining its function type and stating its interaction process. These can set the seal on the factors which can represent status of human system and water system.(2) Quantitative index system of human-water relationship has been built. It has been built to effectively reflect the features of human system and water system as the goal, with the principles such as typical, scientific, systematic, dynamic and operability, etc. It has the target level, subsystem level, classification level and index layer that are related to industrial development, agricultural development, living standards, science and technology level, water quantity, water quality condition and the condition of ecological environment, etc.(3) Recognition model of human-water relationship has been established. The characteristic indexes of the human system and water system are selected according to the human-water quantitative index system.Then the grey correlation analysis, principal component analysis and game force calculation method are used to quantitatively analyse the main factors which can influence the stability of human system and water system and their dominant position.(4) Evaluation model of human-water relationship has been established. According to the quantitative index system, a set of evaluation method and evaluation standard is put forward for human-water interaction status. Objective functions are established by using human-water harmonious quantitative theory method, and constraints are constructed based on guaranting the coordinated development of human-water system. On the basis of establishing its evaluation criteria, we can seek the balance status to compare with the actual development state of human-water relationship and evaluate its role level.(5) Taking Henan Province as the study area, the factor influence and system influence is calculated by using DPS software and the SPSS software to identify the main factors of the systems and their dominant position. Human-water relationship in Henan Province is evaluated by using evaluation model of human-water relationship to calculate the datas from2000to2009.