[Soil macropore and its studying methodology].
This paper discusses the definition, size, types, formation of soil macropores. Soil macropore (> 0.03 mm) 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.
Liu
W
W
Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016. liuwei@iae.syb.ac.cn
Ou
Z
Z
Ying
P
P
D018517:Plant Roots / Q000502:physiology; D016062:Porosity; D012106:Research; D012987:Soil
D012987:Soil