Chin J Plant Ecol ›› 2014, Vol. 38 ›› Issue (1): 36-44.DOI: 10.3724/SP.J.1258.2014.00004
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GUO Jing-Heng1,2,3,4,5, ZENG Fan-Jiang1,2,3,4,*(), LI Chang-Jun1,2,3,4,5, ZHANG Bo1,2,3,4,5
Received:
2013-08-12
Accepted:
2013-11-10
Online:
2014-08-12
Published:
2014-01-15
Contact:
ZENG Fan-Jiang
GUO Jing-Heng, ZENG Fan-Jiang, LI Chang-Jun, ZHANG Bo. Root architecture and ecological adaptation strategies in three shelterbelt plant species in the southern Taklimakan Desert[J]. Chin J Plant Ecol, 2014, 38(1): 36-44.
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URL: https://www.plant-ecology.com/EN/10.3724/SP.J.1258.2014.00004
Fig. 1 The natural environmental characteristics in the study area. A, Tamarix ramosissima. B, Haloxylon ammodendron. C, Populus alba var. pyramidalis.
Fig. 2 The schematic illustration of root branching system. The d is diameter before branching, d1, d2 and d3 are diameters after branching (after Oppelt et al. 2001).
物种 Species | A | b | Pe | v0 | qa | qb | TI |
---|---|---|---|---|---|---|---|
多枝柽柳 Tamarix ramosissima | 25.25 ± 1.55 b | 8.91 ± 0.22 b | 423.33 ± 29.36 c | 47.08 ± 2.39 c | 0.46 ± 0.02 b | 0.13 ± 0.02 b | 0.84 ± 0.01 b |
梭梭 Haloxylon ammodendron | 46.83 ± 2.87 a | 12.72 ± 0.32 a | 898.17 ± 63.57 b | 70.33 ± 3.8 b | 0.63 ± 0.01 a | 0.19 ± 0.01 a | 0.90 ± 0.01 a |
新疆杨 Populus albavar. pyramidalis | 10.83 ± 0.48 c | 8.85 ± 0.19 b | 1 088.33 ± 34.73 a | 123.33 ± 5.1 a | 0.03 ± 0.01 c | 0.02 ± 0.01 c | 0.49 ± 0.01 c |
Table 1 The parameters of root system topology structures of three shelterbelt plant species (mean ± SE)
物种 Species | A | b | Pe | v0 | qa | qb | TI |
---|---|---|---|---|---|---|---|
多枝柽柳 Tamarix ramosissima | 25.25 ± 1.55 b | 8.91 ± 0.22 b | 423.33 ± 29.36 c | 47.08 ± 2.39 c | 0.46 ± 0.02 b | 0.13 ± 0.02 b | 0.84 ± 0.01 b |
梭梭 Haloxylon ammodendron | 46.83 ± 2.87 a | 12.72 ± 0.32 a | 898.17 ± 63.57 b | 70.33 ± 3.8 b | 0.63 ± 0.01 a | 0.19 ± 0.01 a | 0.90 ± 0.01 a |
新疆杨 Populus albavar. pyramidalis | 10.83 ± 0.48 c | 8.85 ± 0.19 b | 1 088.33 ± 34.73 a | 123.33 ± 5.1 a | 0.03 ± 0.01 c | 0.02 ± 0.01 c | 0.49 ± 0.01 c |
物种 Species | Rb | R1/R2 | R2/R3 | R3/R4 | R4/R5 |
---|---|---|---|---|---|
多枝柽柳 Tamarix ramosissima | 3.23 ± 0.08 c | 5.04 ± 0.57 b | 3.19 ± 0.19 b | 3.00 ± 0.13 b | 2.78 ± 0.26 a |
梭梭 Haloxylon ammodendron | 3.72 ± 0.09 b | 8.83 ± 1.48 a | 3.15 ± 0.14 b | 3.46 ± 0.29 b | 2.95 ± 0.43 a |
新疆杨 Populus albavar. pyramidalis | 8.20 ± 0.13 a | 11.10 ± 0.74 a | 11.20 ± 0.41 a | 11.82 ± 0.26 a | 2.23 ± 0.08 a |
Table 2 The total root bifurcation ratio (Rb) and stepwise root bifurcation ratio (Ri/Ri+1) of three shelterbelt plant species (mean ± SE)
物种 Species | Rb | R1/R2 | R2/R3 | R3/R4 | R4/R5 |
---|---|---|---|---|---|
多枝柽柳 Tamarix ramosissima | 3.23 ± 0.08 c | 5.04 ± 0.57 b | 3.19 ± 0.19 b | 3.00 ± 0.13 b | 2.78 ± 0.26 a |
梭梭 Haloxylon ammodendron | 3.72 ± 0.09 b | 8.83 ± 1.48 a | 3.15 ± 0.14 b | 3.46 ± 0.29 b | 2.95 ± 0.43 a |
新疆杨 Populus albavar. pyramidalis | 8.20 ± 0.13 a | 11.10 ± 0.74 a | 11.20 ± 0.41 a | 11.82 ± 0.26 a | 2.23 ± 0.08 a |
Fig. 4 Ratio of root cross-sectional areas in three shelterbelt plant species. Relationships between ratio of root cross-sectional areas and root diameter were fitted with a linear model. A, Tamarix ramosissima. B, Haloxylon ammodendron. C, Populus alba var. pyramidalis.
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