| 引用本文: | 张雨佳,杨振奇,郭建英,等.砒砂岩区4种人工林土壤水分入渗特征及影响因子分析[J].灌溉排水学报,2025,44(10):85-92. |
| ZHANG Yujia,YANG Zhenqi,GUO Jianying,et al.砒砂岩区4种人工林土壤水分入渗特征及影响因子分析[J].灌溉排水学报,2025,44(10):85-92. |
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| 摘要: |
| 【目的】探究砒砂岩区不同植被类型土壤水分的入渗规律，提出适合砒砂岩区的土壤入渗模型。【方法】采用双环入渗法对砒砂岩区4种典型人工林（山杏、柠条、油松、沙棘）及天然草地（CK）进行土壤水分入渗试验研究，分析植被类型对土壤入渗过程的影响，评价Kostiakov模型、Philip模型、通用经验模型、Horton模型在砒砂岩区的适用性。【结果】①不同植被类型土壤体积质量、土壤含水率、土壤有机质、饱和导水率和土壤机械组成存在显著差异，柠条植被类型土壤初始含水率（23.89%）、有机质量（21.57 g/kg）、饱和导水率（2.39 mm/min）极显著高于其他植被类型（p＜0.01），土壤体积质量（1.13 g/cm3）极显著低于其他植被类型（p＜0.01）。②不同植被类型土壤入渗率过程曲线均表现为迅速下降、缓慢下降最后趋于稳定，初始入渗率表现为沙棘＞柠条＞油松＞山杏＞天然草地；土壤稳定入渗速率和平均入渗速率表现为柠条＞沙棘＞油松＞山杏＞天然草地。③Kostiakov模型、Philip模型、通用经验模型、Horton模型初始入渗速率、稳定入渗速率的模拟值与砒砂岩区不同植被类型对应指标实测值的土壤拟合结果存在差异，其中Horton模型拟合结果最优。④土壤体积质量与初始入渗率、稳定入渗速率、平均入渗速率极显著负相关（p＜0.01），土壤有机质量与初始入渗速率、稳定入渗速率及平均入渗速率极显著负相关（p＜0.01），砂粒量与初始入渗速率、稳定入渗速率及平均入渗速率极显著负相关（p＜0.01），土壤含水率与稳定入渗速率、平均入渗速率极显著正相关（p＜0.01），与初始入渗速率显著正相关（p＜0.05）。【结论】灌木植被类型的土壤的入渗性能更好，尤其是柠条的土壤入渗性能，且Horton模型最适宜模拟本研究区的土壤入渗过程。 |
| 关键词: 砒砂岩区；土壤入渗；土壤理化性质；模型；mantel-test相关性热图 |
| DOI：10.13522/j.cnki.ggps.2025180 |
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| Effects of types of planted forests on soil water infiltration in the Pisha sandstone region |
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ZHANG Yujia, YANG Zhenqi, GUO Jianying, LI Long, FAN Dong
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1. Institute of Water Resources for Pastoral Area, Ministry of Water Resources, Hohhot 010200, China;
2. College of Desert Control Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
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| Abstract: |
| 【Objective】The ability of soil to infiltrate water is a critical parameter affecting vegetation restoration and soil conservation; it varies with different biotic and abiotic factors. This paper investigates the effect of different planted forest types on soil water infiltration and its influencing factors in a Pisha sandstone region.【Method】The double-ring infiltration method was used to measure water infiltration in soils with four types of plantations: Armeniaca sibirica, Caragana korshinskii, Pinus tabulaeformis, Hippophae rhamnoides, in a Pisha sandstone area. The control was water infiltration in a natural grassland in the same area (CK). Physical and chemical soil properties in each plantation and the control were measured to assess their influence on water infiltration. The temporal infiltration process in all experiments was simulated by the Kostiakov model, the Philip model, an empirical model and the Horton model.【Result】① There were significant differences in soil bulk density, soil water content, organic matter content, saturated hydraulic conductivity and soil texture between different plantations. Soils planted with Caragana korshinskii showed the highest initial soil water content (23.89%), organic matter content (21.57 g/kg) and saturated hydraulic conductivity (2.39 mm/min), and the lowest bulk soil density (1.13 g/cm3). ② Temporally, infiltration rate decreased asymptotically as time elapsed. The effect of plantations on water infiltration rate in the early stage was ranked as follows: Hippophae rhamnoides＞Caragana korshinskii＞Pinus tabulaeformis＞Armeniaca sibirica＞CK, while the stabilized water infiltration rate was ranked in the order of Caragana korshinskii＞Hippophae rhamnoides＞Pinus tabulaeformis＞Armeniaca sibirica＞CK. ③ Among the four models we compared, the Horton model was the most accurate in describing the change in infiltration rate with time both during early and late stages of infiltration in all treatments. ④ Correlation analysis showed that soil bulk density, organic matter and sand content were negatively correlated with the infiltration rate (p＜0.01), while soil water content was positively correlated with the infiltration rates (p＜0.01-0.05).【Conclusion】Soils planted with Caragana korshinskii enhanced soil water infiltration in the Pisha sandstone area. The Horton model was most accurate for simulating water infiltration in natural grassland and the four planted forests in the Pisha sandstone region. |
| Key words: Pisha sandstone area; soil infiltration; soil physical and chemical properties; model; mantel-test correlation heat map |
