[Case Tutorial] Under the latest guidelines - based on remote sensing interpretation and GIS technology ecological environment impact assessment map production

"Technical Guidelines for Environmental Impact Assessment Ecological Impact" (HJ 19-2022) will be implemented soon, in which the ecological impact assessment map is a necessary component of the ecological impact assessment report, the main basis for the assessment and an important form of expression of the results, and it is a guide for ecological impact assessment. An important basis for the design of protection measures. Among the many maps, the production of thematic maps such as land use maps, vegetation type maps, vegetation coverage maps, and soil erosion maps requires a lot of remote sensing and GIS technology.

【原文链接】：基于遥感解译与GIS技术生态环境影响评价图件制https://mp.weixin.qq.com/s?__biz=MzU5NTkyMzcxNw==&mid=2247531896&idx=6&sn=ff6dbd1e91329fa6619cda72421a1b27&chksm=fe68bb12c91f32047ed30630d5645eb9c41e251cb3abe96ad1591d425661866194ea1a7e8beb&token=1245295760&lang= zh_CN#rd

[Method]: Video tutorial + permanent review + long-term assistance of Q&A group + full set of courseware materials

【Target】:

1. 1. Master remote sensing and GIS land use status interpretation and mapping techniques and methods
2. 2. Master remote sensing and GIS vegetation classification and mapping techniques
3. 3. Master remote sensing and GIS vegetation coverage calculation and mapping techniques
4. 4. Master remote sensing and GIS soil erosion analysis and mapping techniques  
5. 5. Integrate the requirements of the latest guidelines through actual case analysis, and have the ability to apply and solve mapping problems in practice.

【Introduction】:

Topic 1. "Analysis of Remote Sensing and GIS Technology":

1. Interpretation of Eco-environmental Impact Assessment Technology
2. work process
3. Remote Sensing and GIS Technology and Notes
4. Software (ArcGIS, ENVI, etc.) Introduction
5. Software Installation and Precautions

Topic 2, "ArcGIS and Data Management":

1. ArcGIS interface and data loading
2. Data types, data structures, and data formats
3. Introduction to common map projections and projection transformations
4. Ecological environment database construction based on Geodatabase
5. ArcGIS document preservation

Topic 3, "ENVI and ArcGIS Interaction and Mapping":

1. ENVI interface introduction and basic operation
2. ENVI remote sensing image loading and display
3. Introduction to common remote sensing images (LANDSAT, SPOT, Gaofen, Sentinel, Quickbird, etc.)
4. Commonly used remote sensing image download URL sharing
5. Interoperability between ENVI and ArcGIS  
6. Remote Sensing Mapping Based on ArcGIS

Topic 4, "Geographical Location and Mapping of the Project Area":

1. Study area extent vectorization   
2. Research area vector data editing
3. Data splicing and cropping  
4. Calculation of the area of ​​the study area
5. Buffer analysis of the study area  
6. Geographical mapping of the project area

Topic 5. Interpretation and Mapping of Land Use and Vegetation Types:

1. Introduction to remote sensing information extraction technology (supervised classification, unsupervised classification, etc.)
2. ENVI remote sensing image preprocessing (geometric correction, image mosaic, image cropping, image fusion, etc.)
3. Meet ENVI's Image Classification Workflow Tool
4. ENVI unsupervised classification and case explanation  
5. ENVI supervision classification and case explanation
6. Interpretation result processing and accuracy analysis
7. Land Use and Vegetation Type Mapping

Topic 6, "Vegetation Coverage Calculation and Mapping":

1. Remote Sensing Inversion Method    
2. ENVI radiometric calibration and atmospheric correction
3. Calculate the normalized difference vegetation index NDVI in ENVI
4. ENVI Band Operation and Vegetation Coverage Calculation
5. Vegetation Coverage Mapping  

Topic 7, "Soil Erosion Analysis and Mapping":

1. Interpretation of "Soil Erosion Grading and Classification Standard SL 190-2007"
2. Soil Erosion Analysis Calculation Process
3. ArcGIS raster calculation analysis
4. DEM data download and processing  
5. DEM slope analysis and reclassification
6. Soil Erosion Calculation and Mapping    
7.  Elevation and Slope Map Drawing Based on DEM  

Topic 8. "Extraction and Mapping of Surface Water System":

1. Introduction to hydrological analysis of DEM data
2. Fill, flow direction, flow analysis
3. Extraction of river network for hydrological analysis
4. Surface Water System Extraction and Mapping