Current Status
1 Current Situation and Existing Problems of the Ecological Envi-ronment in the Yangtze River Economic Belt
1.1 Current Situation of the Ecological Environment in the Yangtze River Economic Belt
1.1.1 Water Ecological Environment
1.1.2 Terrestrial Ecological Environment
1.1.3 Wetland Ecological Environment
1.1.4 Atmospheric Ecological Environment
1.2 Problems Existing in the Ecological Environment of the Yangtze River Economic Belt
1.2.1 Degradation of Ecological Functions
1.2.2 Decline in Biodiversity Maintenance Function
1.2.3 Severe Environmental Pollution
1.2.4 Potential Dangers of Drinking Water
1.2.5 Difficulty in Ecological Restoration
2 Practice and Achievements of Ecological Environmental Protec-tion in the Yangtze River Basin
2.1 The Practice of Ecological Environment Protection in the Yangtze River Basin
2.1.1 Protection of Aquatic Organisms—Biological Defense Battle
2.1.2 Territorial Space Control—To Keep Our Lands Pollution-Free
2.1.3 Sewage Outlet Treatment and Industrial Pollution Control—To Keep Our Waters Clear
2.1.4 Prevention and Control of Agricultural Non-point Source Pollution—To Keep Our Waters Clear
2.1.5 Prevention and Control of Air Pollution—To Keep Our Skies Blue
2.1.6 Ecological System Management and Protection—Supervision of Ecologi-cal Environment Protection
2.2 Achievements of Ecological Environment Protection in the Yangtze River Basin
2.2.1 Achievements of Ecosystem Restoration
2.2.2 Achievements of Environmental Quality Improvement
2.2.3 Achievements of Improving Resource Utilization Efficiency
2.2.4 Overall Achievement
Evaluation
3 Index System and Methods of Ecological Health Assessment for the Yangtze River Basin
3.1 Principles for the Construction of Ecological Health Assessment Indicators for the Yangtze River Basin
3.1.1 Principle of Scientificity and Objectivity
3.1.2 Principle of Systematicness and Integrity
3.1.3 Principle of Dynamic Comparability
3.1.4 Principle of Operability
3.2 Influencing Factors and Evaluation Dimensions of Ecological Health of the Yangtze River Basin
3.2.1 Socio-Economic Factor
3.2.2 Resource Carrying Factor
3.2.3 Environmental Capacity Factor
3.2.4 Pollution Load Factor
3.2.5 Ecological Restoration Capability
3.2.6 Investment in Resource and Environment Management
3.3 Ecological Health Assessment Index System for the Yangtze River Basin
3.3.1 Preliminary Selection of Ecological Health Assessment Indexes for the Yangtze River Basin
3.3.2 Selection of Ecological Health Assessment Index System for the Yangtze River Basin
3.3.3 Construction of Ecological Health Assessment Index System for the Yangtze River Basin
3.4 Ecological Health Assessment Methods for the Yangtze River Basin
3.4.1 Common Methods of Ecological Health Assessment
3.4.2 Comparison and Selection of Ecological Health Assessment Methods for the Yangtze River Basin
3.4.3 Construction of Ecological Health Assessment Model for the Yangtze River Basin
3.4.4 Construction of Ecological Health Indexes of the Yangtze River Basin
4 Measurement and Analysis of the Yangtze River Basin Ecological Health Indexes
4.1 Data Source of Ecological Health Indexes Measurement for the Yangtze River Basin
4.1.1 Scope of Assessment Area
4.1.2 Data Source and Description
4.1.3 Data Processing
4.2 Ecological Health Indexes for the Upper Reaches of the Yangtze River
4.2.1 Evaluation Ideas and Methods
4.2.2 Evaluation Process
4.2.3 Index Analysis
4.3 Ecological Health Indexes for the Middle Reaches of the Yangtze River
4.3.1 Evaluation Ideas and Methods
4.3.2 Evaluation Process
4.3.3 Index Analysis
4.4 Ecological Health Indexes for the Lower Reaches of the Yangtze Ri
