کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4465296 1621850 2011 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Analyzing the effects of scale and land use pattern metrics on land use database generalization indices
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات کامپیوتر در علوم زمین
پیش نمایش صفحه اول مقاله
Analyzing the effects of scale and land use pattern metrics on land use database generalization indices
چکیده انگلیسی

The generalization index system is one of the critical issues for computer-aided land use database generalization. This paper studies the scale and land use pattern effects on land use database generalization indices and estimates the thresholds of these indices based on a typical land use database sample. The index system of land use database generalization is discussed and constructed from macro and micro perspectives. Six land use pattern metrics, namely, land use diversity index, land use dominance index, land use homogeneity index, land use fragmentation index, the index of land use type dominance, and the index of land use type fragmentation, are designed to characterize land use patterns and are introduced into the analysis of land use pattern effect on land use database indices. The analysis framework of the scale and land use pattern effects on the land use database indices are proposed by employing statistical techniques. Based on the land use database samples at multiple spatial scales collected in various land use regions across China, the study generates rules for both scale and land use pattern effects on the indices, including map area proportion of land use types, total map load, parcel map load, and minimum parcel area. The thresholds of these indices in land use database generalization are produced at the scales of 1:50,000, 1:100,000, 1:250,000, and 1:500,000. An experimental generalization at county level demonstrates how to determine the generalization index values considering scale and land use pattern, and how to evaluate the generalization results using our macro indices.

Research highlights
► The index system of land use database generalization was constructed from macro and micro perspectives.
► Six land use pattern metrics were designed to characterize land use patterns.
► Analyzed the scale effects on the indices based on sample maps.
► Analyzed the land use pattern effects on the indices based on sample maps.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Applied Earth Observation and Geoinformation - Volume 13, Issue 3, June 2011, Pages 346–356
نویسندگان
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