Soil moisture infiltration dynamics in plantation of Caragana microphylla in Heerqin sandy land

Abstract

Abstract: Soil water seeping at different aged plantation of Caragana microphylla had been studied in Heerqin sandy land after rainfall. This work presented the influence of plantation on soil water content of sandy land. The result indicated that during 120 hours after rainfall, quantity 43.4 mm and intension3.9 mm穐^-1, the depth of water seeping of shifting sand dune and 5 years old plantation of Caragana microphylla was 180 cm and 150 cm,respectively. The depth of water seeping of 15 years old plantation was over 100 cm. The soil water content of shifting sand dune changed radicaly. Soil water content of sand dune covered with vegetation increased slowly, process of losing soil water content was longer, and the depth of water seeping was shallow. Along with age increase of vegetation, ability of water retention in shallow layer soil increased, and an anti-water layer was formed. Soil water content of shifting sand dune were high in a short time in shallow layer of soil after rainfall. Soil water content of vegetation were high in later period at deep layer of soil after rainfall.

Key words: Copper tailings, Heavy metal, Chemical forms, Zoysia japonica, Trifolium pratense

CLC Number:

S727.23

Alamusa, JIANG Deming, PEI Tiefan . Soil moisture infiltration dynamics in plantation of Caragana microphylla in Heerqin sandy land[J]. cje, 2004, (1): 56-59.

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