2001•Yingyong Shengtai XuebaoRequires access
Soil macropore and its studying methodology.
OU Ziqing
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Abstract
This paper discusses the definition, size, types, formation of soil macropores.Soil macropore (0.03mm) is the pore space that provides preferential paths of flow. The shape of macropore varies from crack or fissure, through to cylindrical pipe. Macropore is formed in main ways: by plant roots and soil fauna; wet dry and freeze thaw cycles; chemical weathering. The studying method of macropore divided into direct measurement and indirect description, which suitability and limitation are also reviewed.