Land use data generalization indices considering scale and land use pattern effects

Land use data generalization indices considering scale and land use pattern effects
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考虑规模和土地利用格局影响的土地利用数据综合指数

DOI:
10.1007/s11430-010-4119-4
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发表时间:
2011-05
期刊:
Science in China Series-D
影响因子:
--
通讯作者:
刘耀林
刘耀林
中科院分区:
其他
文献类型:
--
作者:
刘耀林

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土地使用泛化指数对于生产规范性的多尺度土地使用数据库和地图至关重要,但是在中国,这些指数仍然没有国家标准。先前关于土地使用数据概括指数的研究经常忽略MA
Land use generalization indices are critical for producing normative multi-scale land use databases and maps, but there is still not a national criterion for these indices in China. Previous studies on land use data generalization indices often neglect macro-indices such as area proportion of land use types and map load, and also ignore landscape effects on land use generalization indices. Here we constructed an index system of land use data generalization from macro- and micro-perspectives, and examined scale and landscape effects on land use data generalization indices based on the countrywide multi-scale land use data samples. We formulated relationships between land use data generalization indices and both scale and land use pattern metrics. We defined thresholds of land use data generalization indices on scales of 1:50000, 1:100000, 1:250000, and 1:500000. We verified our methodology and index thresholds through generalizing a county land use database.
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