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Digital terron mapping
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DOI：10.1016/j.geoderma.2005.04.012.png)
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Abstract
En 中文
The aim of this study is to propose a new concept, the terron, with an associated model, for helping environmental managers make decisions. Terron is a whole entity integrating soil properties (pedon) with topographic soil-forming factors (represented here by landform attributes)-which can be assimilated to terroir. For terron mapping, landform is not only an interpolation support as it is in existing models, but also a taxonomic variable. Data from French databases are used to illustrate this concept. Terron mapping consists of four stages. First is the classification of n area-representative soil types with landform attributes by fuzzy k-means with extragrades into n terron classes. Second is the establishment of terron-landform rules using a multi-linear regression. Third is the interpolation of the terron-landform rules using regression-kriging. Fourth is validation with a second sample dataset. The results are compared with a soil map created with a regression-kriging model. (c) 2005 Elsevier B.V. All rights reserved.
Keywords:
decision-making support
soil-landform
FuzMe
terron
fuzzy k-means
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6.6
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9.4K
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4.5W
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