Large scale soil survey and mapping based on the spatial variation of soil horizons
This paper put forward a proposal of large-scale soil survey and mapping based on characterization of the spatial variation of soil horizons. The framework of the method can be divided into four steps: (i) positioning of observation points with Global Positioning System (GPS), observing soil profile...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Zhejiang University Press
2006-05-01
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| Series: | 浙江大学学报. 农业与生命科学版 |
| Subjects: | |
| Online Access: | https://www.academax.com/doi/10.3785/1008-9209.2006.03.0346 |
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| Summary: | This paper put forward a proposal of large-scale soil survey and mapping based on characterization of the spatial variation of soil horizons. The framework of the method can be divided into four steps: (i) positioning of observation points with Global Positioning System (GPS), observing soil profiles and classifying soil horizon; (ii) determining soil types in the studied area, and establishing a database of soil attributes and spatial parameters; (iii) analyzing the spatial variations of thickness of the selected soil horizons (diagnostic horizon) supported by the Geographical Information System (GIS), and defining standards for soil classification; (iv) overlay processing of soil horizon maps, and developing a soil map. The method was applied to soil survey of a 28.3 hm<sup>2</sup> low hill where soils were developed from shale. Three soil series were identified in the studied area. The results indicated that the method was applicable for large-scale soil survey with a high accuracy (94%). |
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| ISSN: | 1008-9209 2097-5155 |