Arid Land Geography ›› 2026, Vol. 49 ›› Issue (1): 56-68.doi: 10.12118/j.issn.1000-6060.2025.201
• Earth Surface Process • Previous Articles Next Articles
LIU Quanyu1,2(
), LIU Xinlu1,2, LI Guizhen1, LI Congjuan2(
)
Received:2025-04-13
Revised:2025-07-03
Online:2026-01-25
Published:2026-01-18
Contact:
LI Congjuan
E-mail:liuquanyu12345@126.com;licj@ms.xjb.ac.cn
LIU Quanyu, LIU Xinlu, LI Guizhen, LI Congjuan. Fractal characteristics and driving factors of soil particle size in the surface layer of Xinjiang[J].Arid Land Geography, 2026, 49(1): 56-68.
Tab. 3
Descriptive statistics of soil particle composition in plots under different aridity gradients"
| 样地分类 | 黏粒/% | 粉粒/% | 砂粒/% | ||||
|---|---|---|---|---|---|---|---|
| 极细砂 | 细砂 | 中砂 | 粗砂 | 总量 | |||
| 半干旱样地 | 5.33±0.39a | 85.17±1.158a | 8.19±0.81c | 1.32±0.29b | 0.57±0.47a | 0.22±0.02a | 9.50±1.05c |
| 干旱样地 | 5.34±0.44a | 72.63±2.87b | 14.34±1.38b | 7.09±1.78b | 0.97±0.74a | 0.02±0.01a | 21.99±3.16b |
| 极端干旱样地 | 2.35±0.96b | 43.20±7.79c | 30.07±3.95a | 23.41±5.87a | 0.52±0.29a | 0.02±0.01a | 54.45±8.48a |
Tab. 4
Differences in soil particle composition under different soil-forming parent materials"
| 母质类型 | 样本数 | 黏粒占比/% | 粉粒占比/% | 砂粒占比/% | 分形维数 |
|---|---|---|---|---|---|
| 坡、残积母质 | 102 | 5.32±0.42a | 75.31±3.17a | 19.37±3.40b | 2.45±0.03a |
| 洪、冲积母质 | 48 | 4.69±3.25a | 72.98±3.80a | 22.24±4.38b | 2.37±0.06a |
| 风积母质 | 21 | 1.07±1.65b | 24.63±7.41b | 74.29±7.97a | 2.01±0.15b |
| 黄土状母质 | 9 | 5.03±1.00a | 77.70±2.94a | 17.27±3.65b | 2.44±0.04a |
Tab. 5
Differences in soil particle composition under different soil types"
| 土壤类型 | 样本数 | 黏粒占比/% | 粉粒占比/% | 砂粒占比/% | 分形维数 |
|---|---|---|---|---|---|
| 风沙土 | 24 | 0.91±0.53b | 25.65±9.18c | 73.44±9.69a | 2.00±0.34b |
| 黑钙土 | 24 | 5.71±0.47a | 85.24±1.89a | 9.05±1.65bc | 2.47±0.05a |
| 黑毡土 | 9 | 6.20±0.53a | 87.16±0.82a | 6.64±0.55c | 2.49±0.03a |
| 冷钙土 | 9 | 4.55±0.9ab | 79.93±5.00ab | 15.52±9.01bc | 2.43±0.02a |
| 粟钙土 | 33 | 4.91±0.59ab | 78.72±2.97ab | 16.36±3.37bc | 2.45±0.02a |
| 盐土 | 15 | 3.88±1.15ab | 75.89±5.99ab | 20.23±6.87bc | 2.35±0.08a |
| 棕钙土 | 18 | 5.65±1.18a | 72.55±5.32b | 21.58±6.49bc | 2.47±0.03a |
| 棕漠土 | 24 | 6.32±1.16a | 64.27±4.31b | 29.41±5.27b | 2.46±0.09a |
Tab. 7
Environmental characteristics in plots under different aridity gradients"
| 样地分类 | ASL/m | 坡度 | 坡向 | BD/g·cm-3 | SWC/% |
|---|---|---|---|---|---|
| 半干旱样地 | 1994.33±161.92a | 7.46±1.21a | 175.66±27.70a | 82.91±6.74b | 23.76±3.46a |
| 干旱样地 | 1758.58±194.67ab | 4.22±0.87b | 175.75±22.50a | 119.01±6.51a | 8.75±1.88b |
| 极端干旱样地 | 1195.86±184.51b | 2.03±0.97b | 229.82±31.80a | 134.00±4.76a | 4.05±1.70c |
| 样地分类 | SOM/g·kg-1 | pH | EC/μS·cm-1 | NDVI | 风速/m·s-1 |
| 半干旱样地 | 99.85±11.98a | 6.68±0.26b | 146.47±16.42b | 0.51±0.04a | 10.46±0.88a |
| 干旱样地 | 29.41±7.35b | 8.23±0.11a | 3813.46±1692.26a | 0.21±0.03b | 10.69±0.59a |
| 极端干旱样地 | 7.96±4.24c | 8.52±0.31a | 3625.83±1122.65a | 0.14±0.03b | 9.14±0.44a |
Tab. 8
Pearson correlation analysis between different environmental factors and fractal dimension"
| 驱动因子 | MAP | MAT | ASL | 坡度 | 坡向 | BD | SWC | SOM | pH | EC | NDVI | 风速 | 分形维数 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MAP | 1.00 | - | - | - | - | - | - | - | - | - | - | - | - |
| MAT | -0.68** | 1.00 | - | - | - | - | - | - | - | - | - | - | - |
| ASL | 0.20 | -0.73** | 1.00 | - | - | - | - | - | - | - | - | - | - |
| 坡度 | 0.45** | -0.60** | 0.58** | 1.00 | - | - | - | - | - | - | - | - | - |
| 坡向 | -0.19 | 0.66** | -0.019 | 0.033 | 1.00 | - | - | - | - | - | - | - | - |
| BD | -0.61** | 0.56** | -0.42** | -0.58** | 0.089 | 1.00 | - | - | - | - | - | - | - |
| SWC | 0.66** | -0.61** | 0.44** | -0.54** | -0.14 | -0.84** | 1.00 | - | - | - | - | - | - |
| SOM | 0.75** | -0.67** | 0.38** | -0.64** | -0.15 | -0.84** | 0.88** | 1.00 | - | - | - | - | - |
| pH | -0.79** | 0.59** | -0.21** | -0.47** | 0.012 | 0.71** | -0.70** | -0.79** | 1.00 | - | - | - | - |
| EC | -0.33* | -0.43** | -0.23 | -0.30* | 0.11 | 0.05 | -0.12 | -0.24 | 0.21 | 1.00 | - | - | - |
| NDVI | 0.75** | -0.61** | 0.31* | -0.57** | -0.029 | -0.81** | 0.79** | 0.84** | -0.81** | -0.22 | 1.00 | - | - |
| 风速 | 0.17 | -0.20 | -0.09 | -0.09 | 0.03 | 0.05 | 0.001 | 0.071 | -0.16 | -0.18 | -0.10 | 1.00 | - |
| 分形维数 | 0.42** | -0.45** | 0.12 | 0.16 | -0.10 | -0.12 | 0.16 | 0.24 | -0.26* | -0.10 | 0.16 | 0.29* | 1.00 |
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