[1]SONG Hongli,ZHANG Xiaonan.Exploratory Analysis of Category Accuracy for Multi-Sources Land Cover Products[J].Research of Soil and Water Conservation,2015,22(06):36-41.
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Exploratory Analysis of Category Accuracy for Multi-Sources Land Cover Products
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
22
Number of periods:
2015 06
Page number:
36-41
Column:
Public date:
2015-12-28
- Title:
- Exploratory Analysis of Category Accuracy for Multi-Sources Land Cover Products
- CLC:
- S127
- DOI:
- -
- Abstract:
- We evaluated the category accuracy and confusion characteristic of four kinds of land cover products on national scales, then constructed the spatial agreement and spatial homogeneity map and their quantitative relationships with category accuracy. The results showed that validated products and reference data had some categorical confusion which mainly occurred in forest, grass, shrub and cropland, especially between shrub and other categories, so shrub had the worst category precision; the large homogenous regions of the forest, cropland, grass and bare land showed almost complete agreement, and this areas almost took up 39.03 percent of the whole study area, Areas of high agreement were often adjacent to areas of full agreement and they occupied about 40.67 percent, grassland, bare land and cropland were the dominant land cover categories there; areas of low agreement showed the banded distribution characteristics, which was mainly located in the center of southeast, northwest of Tibet alpine zone and the district of northwest and northeast boundaries, areas of no agreement was mainly located around the Hu Huanyong geographical boundaries, occupied about 1.74 percent of the whole study area; spatial homogeneous maps of four land cover products showed the overall consistency, these regions were mainly located in North China Plain, northwest desert area and southeast area. The map demonstrated that the homogeneous of all categories almost vanished in China’s southwest region because of the complexity of these regions and the strong landscape heterogeneity.
- References:
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