| Abstrakt: |
Ecological geology is an emerging interdisciplinary field. Many scholars have explored its research content, work ideas, technical means, and service objectives. Taking the "One Line and Four Mines" area in western Beijing as the research object, this paper elaborates on the overall idea and working methods of ecological geological survey with the goal of serving ecological protection and restoration, and establishes an ecological geological zoning evaluation index system. The research results show that the evaluation of ecological geological zoning can directly reflect the background characteristics of ecological geology and is a direct manifestation of the advantages and disadvantages of ecological geological conditions. This paper proposes an ecological geological zoning evaluation model using the "geography+geology+ecology" method, and establishes an evaluation index system consisting of 1 target layer, 3 criteria layers, and 10 indicator layers. The weight of the geographical environment is 0.122 6, the weight of the geological environment is 0.6011, and the weight of the ecological environment is 0.276 3. Taking geological formation as the classification unit, the supporting force of surface matrix layer from strong to weak is neutral intrusive rock formation, terrigenous clastic rock formation, neutral volcanic rock formation, basic volcanic rock formation and carbonate rock formation. The area with good ecological and geological conditions in the "One Line and Four Mines" area of western Beijing (287 km²) is 105.9 km², accounting for 36.9%. The general area is 78.7 km², accounting for 27.4%. The area of the poor area is 102.4 km², accounting for 35.7%. In the overall planning scope of the concept plan for coordinated development of the "One Line and Four Mines" and surrounding areas in western Beijing (99 km²), the suitable area for tree growth is delineated as 58.6 km², and the suitable area for shrub growth is 40.4 km². [ABSTRACT FROM AUTHOR] |
