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[1]LUO Chun-yan,WU Chu,LU Guang-xin,et al.Tensile Resistance Characteristics of Root-Soil Composite System and Influence Factor Analysis in Sanjiangyuan Regions of Qinghai-Tibet Plateau[J].Research of Soil and Water Conservation,2014,21(05):260-266,271.

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Tensile Resistance Characteristics of Root-Soil Composite System and Influence Factor Analysis in Sanjiangyuan Regions of Qinghai-Tibet Plateau

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 21 Number of periods: 2014 05 Page number: 260-266,271 Column: Public date: 2014-10-28

Title:: Tensile Resistance Characteristics of Root-Soil Composite System and Influence Factor Analysis in Sanjiangyuan Regions of Qinghai-Tibet Plateau

Author(s):: LUO Chun-yan¹, WU Chu², LU Guang-xin³, DE Ke-jia⁴, ZHANG Ming⁴, WANG Jun-bang⁵; 1. College of Civil Engineering, Qinghai University, Xi’ning 810016, China;
2. College of Horticulture and Gardening, Yangtze University, Jingzhou, Hubei, 434025, China;
3. College of Agriculture and Animal Husbandry, Qinghai University, Xi’ning 810016, China;
4. Qinghai Academy of Animal Science and Veterinary Medicine, Xi’ning 810016, China

Keywords:: Sanjiangyuan Regions of Qinghai-Tibet Plateau; root-soil complex; root tensile resistance; biological characteristics; Oats

CLC:: TU411.7

DOI:: -

Abstract:: To study the stability mechanism of the root-soil complex in restored alpine meadow, the tests for the tensile resistance of plant roots were carried out in Sanjiangyuan Regions of Qinghai—Tibet Plateau. The performance characteristics of the root tensile resistance and factors affecting root-soil complex were analyzed. All the results showed that: (1) the root-soil complex showed different characteristics under the conditions of different terrain and different planting way, the root tensile resistance in the area with high density of oats is smaller than that in the area with low density of oats, sowing ways affected the root tensile resistance, the root tensile resistance in the area with drilling sowing way is smaller than that in the area with scattering sowing way, slopes affect the root tensile resistance, the root tensile resistance in the area with greater slopes is smaller than that in the area with less slopes, in addition, the distances from the planting sites to the erosive ditches also affect the root tensile resistance, the root tensile resistance in the areas far away from the erosive ditches is significantly less than that in the area near the erosive ditches(P < 0.05); (2) the correlation between root tensile resistance and the biological characteristics of the ground-above parts of oat plants was low, but is high between root tensile resistance and the biological characteristics of the ground-below parts of oat plants; (3) there are significant positive correlations with root diameters (RD), root numbers ((RN), root length (RL), the biomass of single roots (RW) (P < 0.05).

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