左其亭，河南固始人，1967年12月16日生。2000年6月毕业于武汉水利电力大学（现武汉大学），获水文学及水资源专业博士学位，2004年11月破格晋升为教授，2006年6月遴选为博士研究生导师，2009年获得宝钢优秀教师奖，2012年荣获全国优秀科技工作者称号，2013年被聘为河南省特聘教授，2015年被评为河南省教学名师。现为郑州大学水科学研究中心主任，水利与环境学院教授、博士研究生导师，河南省学术技术带头人、河南省优秀青年科技专家。
主要从事人水关系和谐调控与水资源综合管理的教学和研究工作。主持国家社科基金重大项目1项、国家自然科学基金3项、国家社会科学基金1项、高等学校博士学科点专项科研基金等各类研究项目共52项。获省部级科技进步一等奖2项、二等奖4项、三等奖1项。出版学术专著12部，发表学术论文316篇。代表论著有：《和谐论：理论·方法·应用》《人水和谐量化研究方法及应用》《资源节约型社会评价：指标·方法·应用》《面向可持续发展的水资源规划与管理》《城市水资源承载能力》《水资源规划与管理》《现代水文学》等。

This book introduces the main contents of the human-water relationship discipline from basic concepts, theoretical basis, research methods to application practice. It is the first monograph on “Human-Water Relationship Discipline” globally. The book consists of 9 chapters. Chapter 1 introduces the relevant concepts and subject system of human-water relationship discipline; Chapters 2 and 3 respectively introduce the theoretical system and research methods of human-water relationship discipline; Chapter 4 introduces the main research contents of human-water relationship discipline; Chapters 5 and 6 respectively introduce the links between human-water relationship discipline and water control idea, as well as water engineering construction; Chapters 7 and 8 respectively introduce two application examples of human-water relationship analysis and regulation in the Yellow River Basin and Henan Province; Chapter 9 is the development prospect of human-water relationship discipline.
This book can be used as a reference for scientific researchers, managers, graduate students, and related staff in fields such as water conservancy engineering, environmental engineering, ecological engineering, civil engineering, resource science, water science, geo-graphic science, sociology, economics, management, and systems science.

Contents
Preface
Chapter 1 Introduction to Human-Water Relationship Discipline
1.1 Background and significance
1.1.1 Background of the proposal
1.1.2 Development history
1.1.3 Research significance
1.2 Related concepts of human-water relationship discipline
1.2.1 Concept of human-water system
1.2.2 Concept of human-water relationship
1.2.3 Concept of human-water relationship discipline
1.2.4 Concept of human-water relationship science
1.3 Discipline system and characteristics of human-water relationship discipline
1.3.1 Research object and scope of human-water relationship discipline
1.3.2 Subject system of human-water relationship discipline
1.3.3 Characteristics of human-water relationship discipline
1.4 Connection of human-water relationship discipline and water science
1.4.1 Introduction to water science
1.4.2 Research on human-water relationship is the core and nexus of water science
1.4.3 Water science is the important foundation of human-water relationship discipline
1.5 Advantages of human-water relationship discipline
Chapter 2 Theoretical System of Human-Water Relationship Discipline
2.1 Basic principles of human-water relationship discipline
2.1.1 Basic principles framework
2.1.2 Human-water relationship interaction principle
2.1.3 Human-water system adaptive principle
2.1.4 Human-water system balance transfer principle
2.1.5 Human-water relationship harmonious evolution principle
2.2 Introduction and application analysis of main theories
2.2.1 Human-water system theory
2.2.2 Human-water cybernetics
2.2.3 Human-water harmony theory
2.2.4 Human-water game theory
2.2.5 Human-water synergy theory
2.2.6 Water crisis and conflict theory
2.2.7 Human-water relationship dialectic theory
2.2.8 Human-water system sustainable development theory
2.3 Theoretical essentials of human-water relationship discipline
2.3.1 Main arguments of human-water relationship discipline
2.3.2 Time and space view of human-water relationship discipline
2.3.3 System view of human-water relationship discipline
2.3.4 Harmony view of human-water relationship discipline
2.3.5 Ecological view of human-water relationship discipline
2.3.6 Discriminant criteria of human-water relationship discipline
Chapter 3 Research Methods of Human-Water Relationship Discipline
3.1 Overview of research methods of human-water relationship discipline
3.2 Calculation methods of human-water relationship research
3.2.1 Identification method
3.2.2 Evaluation method
3.2.3 Simulation method
3.2.4 Regulation method
3.2.5 Optimization method
3.3 Technical methods of human-water relationship research
3.3.1 Water disaster prevention technology
3.3.2 Water resources saving technology
3.3.3 Water pollution treatment technology
3.3.4 Water ecological restoration technology
3.3.5 Water information technology
Chapter 4 Research Contents of Human-Water Relationship Discipline
4.1 Overview
4.1.1 Main research contents and classification
4.1.2 Correlation between different research contents
4.2 Research on the mechanism of human-water relationship
4.2.1 Review on the mechanism of human-water relationship
4.2.2 Research on the relationship between farmland irrigation, crop yield and groundwater change
4.2.3 Change in hydrological process caused by urbanization
4.2.4 Effect of gate dam on water quality and quantity of polluted river
4.2.5 Effect of water environment on human health
4.2.6 Effect of climate change on grain yield
4.3 Research on the change process of human-water relationship
4.3.1 Review on the change process of human-water relationship
4.3.2 River evolution and human activities
4.3.3 Change process of ru