Abstract
At present, the route selection of railway construction projects from the perspective of environmental protection fails to objectively and comprehensively reflecting environmental protection requirements. Therefore, incorporating ecological asset assessment into the route selection of railway construction projects is conducive to promoting environmental protection to participate in railway route selection and improve railway route selection. This article summarizes the current status of railway route selection, identifies the existing problems in railway environmental route selection, and combines the research progress of ecological asset assessment, and proposes the assessment content and evaluation index system of ecological asset assessment in railway environmental route selection, and points out the future research prospects.
Highlights
With the gradual promotion of concepts such as green transportation and ecological railways in the field of transportation, the environmental protection work of railway construction projects has received more and more attention
Ecological assets are the value of various service benefits that human beings obtain from the natural environment[14], including the value of natural resources, the functional value of ecosystem services and the value of eco-economic products
The ecosystem has a variety of ecosystem service functions such as water conservation, soil and water conservation, wind and sand protection, and biodiversity maintenance
Summary
With the gradual promotion of concepts such as green transportation and ecological railways in the field of transportation, the environmental protection work of railway construction projects has received more and more attention. The environmental protection route selection of railway construction projects is mainly divided into two steps, one is to identify ecologically sensitive areas, and the other is to put forward line bypass requirements. It only pays attention to the compliance of relevant environmental laws and regulations, and puts forward circumvention requirements for areas prohibited by laws It can meet basic ecological environmental protection requirements, it does not from the perspective of the value of ecological assets and the protection of ecosystems. It lack the consideration of the natural resources loss, and pays no attention to the ecosystem's service functions and service values.
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