Boundary treatment of Eco-redline of Qin River headwater region based on land cover and land use data

doi:10.13474/j.cnki.11-2246.2019.0313

Abstract

Abstract: Boundary treatment is to change ecological protection redline (eco-redline) from ecological assessment result of a grid form to specific land with a clear boundary by means of GIS software, which also can be called "mapping". It is not only an important process in the eco-redline delineation but also a condition for precise boundary settlement and effective control of the eco-redline. Taking Qin River headwater region as an example, this paper uses land cover classification data and land use classification data to treat eco-redline boundary of the assessed ecologically important areas respectively. It was showed that either kind of data is suitable for this work, and the mapping result is better when the two types of data were used together. The grid area of the study area with extremely important eco-function is 877.87 km², and the area of corresponding eco-redlines after boundary treatment based on two data is 877.73 km², accounting for 64.51% of the total area of the study area. The study results can be referred in the optimization and adjustment of eco-redline boundary in areas where ecological function are important.

Key words: areas with extremely important eco-function, boundary determination, ecological land, land cover, land use

CLC Number:

P237

NING Ting, DU Shixun, RONG Yuejing, WANG Wei, LI Chao. Boundary treatment of Eco-redline of Qin River headwater region based on land cover and land use data[J]. 测绘通报, 2019, 0(10): 30-34.

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