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[1]CHENG Wen-hao,CHEN Lin.Analysis on Spatial Distribution of the Pinus Tabulaeformis Carr. Root in Helan Mountain[J].Research of Soil and Water Conservation,2013,20(01):89-93.

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Analysis on Spatial Distribution of the Pinus Tabulaeformis Carr. Root in Helan Mountain

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 20 Number of periods: 2013 01 Page number: 89-93 Column: Public date: 2013-02-28

Title:: Analysis on Spatial Distribution of the Pinus Tabulaeformis Carr. Root in Helan Mountain

Author(s):: CHENG Wen-hao^1,2, CHEN Lin²; 1. Deparament of Human Resourses, Ningxia University, Yinchuan 750021, China;
2. Key Laboratory for Restoration and Reconstruction of Northwest Degraded Ecosythem, Ministry of Education, Ningxia University, Yinchuan 750021, China

Keywords:: Pinus Tabulaeformis Carr.; root; spatial distribution; Helan Mountain

CLC:: S791.254

DOI:: -

Abstract:: The spatial distribution of the Pinus Tabulaeformis Carr. root was studied. The results showed that all kinds of roots were distributied largely in the soil above 40 cm, but the size of roots gradually reduced to the minimum of 2 mm below 40 cm. So, the thin roots concentrated in the range of the 0—60 cm of the soil layers, accounting for 92.9% of the total thin roots, especially in the range of 0—10 cm topsoil, thin roots accounted for 30.8%. Ptabulaeformis roots have deep-rooted characteristics, and the coarse roots concentrated in more than 40 cm soil layer, accounting for 88.6% of the total coarse root. There were a large number of thin Ptabulaeformis roots in the depth of 40 cm and the most concentrated in the topsoil. Furthermore, the number of thin Ptabulaeformis roots reduced with the increase of the distance from the sample tree. Generally, the total roots, length, surface area, volume and root tip number reduced to the minimum away from the sample tree about 2.0 m away from the sample plant.

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