[1]WEN Lu,LIU Jing-lan,XI Yan,et al.Analysis on Soil Physical Properties of the Old Trees in Beijing[J].Research of Soil and Water Conservation,2011,18(05):175-178.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
18
Number of periods:
2011 05
Page number:
175-178
Column:
Public date:
2011-10-20
- Title:
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Analysis on Soil Physical Properties of the Old Trees in Beijing
- Author(s):
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WEN Lu1, LIU Jing-lan1, XI Yan1, ZHANG Zhen-ming1, WANG Xiao-ping2, CHEN Jun-qi2, WANG Chun-neng2
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1. College of Nature Conservation, Beijing Forestry University, Beijing 100083, China;
2. Bejing Forestry and Parks Department of International Cooperation, Bejing 100029, China
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- Keywords:
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old tree; soil water content; bulk density; soil porosity; soil compaction
- CLC:
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S714.2
- DOI:
-
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- Abstract:
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As the representative of old trees, Pinus bungeanaas, Pinus tabulaeformis, Platycladus orientalis and Sophora Japonica were selected as the examples. Adopting cutting ring method and drying method, their soil physical properties were determined and analyzed in order to provide an effective basis for evaluating health of old trees and direct the rejuvenation of old trees etc. The results show that: (1)average soil water content (SWC) was 10.6%, but the SWC of different tree species are not same, and it presented as Pinus bungeanaas>Pinus tabulaeformis>Sophora japonica>Platycladus orientalis; (2)the mean bulk density of soil samples was 1.20 g/cm3, and their differences were not significant; (3)the average total porosity, mean capillary porosity and medial non-capillary porosity of soil samples were 20.7%, 11.8%, 9.0%, respectively, and there were not obvious differences among these soils supporing these species, the soil permeability is not good; (4) mean soil compaction is 2.19 kg/m2, and the regional differences are significant. In this study, we could initially determine that the soil physical conditions for the 4 tree species were not the suitable ones for plant growth.