Soil Physical and Chemical Properties under Four Densities of Hybrid Larch Plantations

Abstract:

The soil physical and chemical properties of four densities (A:2500/hm²，B:3300/hm²，C:4400/hm²，D:6600/hm2) of hybrid Larch plantations, Larix olgensis plantation(E) and Quercus mandsurica forest(F) were studied in Jiangshanjiao forest farm of Heilongjiang province of China. Soil bulk density, soil porosity, total N, total P, available N and available P were affected significantly by plantation density in hybrid Larch plantations. The lowest surface soil bulk density was in density 2500/hm². Soil porosity of density 2500/hm² and 3300/hm² was bigger than that of density 4400/hm² and density 6600/hm². Total N, total P and available N of density 4400/hm² and 3300/hm² were higher than that of density 6600/hm² and density 2500/hm². Total N, total P, available N and available P of hybrid Larch plantations were not lower than that of Larix olgensis plantation. The results of the soil physical and chemical properties under different densities of hybrid Larch plantations and different types of forest seems to confirm that hybrid Larch plantation did not decreased the soil fertility, and the hybrid Larch plantation with densities of 3300/hm² and 4400/hm² could be conductive to improving the soil quality. The results would provide the theories basis for manage the hybrid Larch plantations.

• Periodical: Advanced Materials Research (Volumes 524-527)
• Pages: 2139-2142
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.524-527.2139
• Online since: May 2012
• Authors: Shu Li Wang, Chao Ma, Wei Bin Yuan
• Keywords: Hybrid, Larch, Plantation, Soil Chemical Property, Soil Physical Property

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