Title: Restoring Effects of Grass Litter on the Soil Polarization of Pinus tabulaeformis and Platycladus orientalis Pure Forests in the Loess Gullied Area
Abstract: The selective utilization and special effects of pure forest on soil nutrient and litter are considered as fundamental reasons leading to soil polarization.The most rapid and effective measures to prevent and restore this problem are the fertilizing of forest soil using grass litter and the establishment of tree-grass complex vegetation.In order to select the appropriate grass species for preventing the soil polarization of the pure planted forest in the loess gullied area,the grass litters of seven legume species and the humus soils of Pinus tabulaeformis and Platycladus orientalis pure forests were sampled for mixed incubation experiment in laboratory and the restoring effects of the grass litter on the polarized soil were analyzed.Results showed that Medicago sativa and Onobrychis viciaefolia had better comprehensive remediation effects on the soil properties of Pinus tabulae formis pure forest and were able to be used as the optimization herbages of compound planting,whereas Leapedeza bicolor,Vicia villosa and Astragalus adsurgens had comprehensive deterioration effects.O.viciaefoli,M.sativa and Melilotus officinalis had better comprehensive remediation effects on the soil properties of Platycladus orientalis pure forest and were able to be used as the optimization herbages of compound planting,while V.villosa and Coronilla varia had comprehensive deterioration effects.
Publication Year: 2014
Publication Date: 2014-01-01
Language: en
Type: article
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Cited By Count: 1
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