首页|Impacts of ground cover on laws of temporal and spatial variation of soil moisture
Impacts of ground cover on laws of temporal and spatial variation of soil moisture
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In order to describe and compare intuitively the impact of different kinds of ground cover on temporal and spatial variation of soil moisture, an experiment was carried out by continuous observations to obtain soil potential data of different treatments. Based on the data, isogram maps were drawn by a regression isogram method. The results indicate that the isogram of treatment A (Paspalum notatum Flugge-covered) is the most complicated among the three treatments with its significant transverse levels, while the isograms of treatment B (mulching of P. notatum Flugge) and C (bare slope) are relatively simple but have clear vertical levels. The variation of soil moisture 30 cm deep in the A treatment is the largest, while that at 60 cm is the second largest and that of 90 cm is the smallest. The variation of soil moisture at all levels of B is fairly small, while that at 30 and 60 cm of C is greater than that 90 cm deep.
regression isogram methodsoil moisturetemporal and spatial variationPaspalum notatum Flugge
Shiyu LIU、Wenbo CHEN
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Research Center of Environment and Landscape Ecology, Jiangxi Agricultural University, Nanchang 330045, China
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NSTL
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