| 阴山北麓不同林分类型土壤持水性能研究 |
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| 引用本文： | 芳菲,秦富仓,李龙,杨振奇.阴山北麓不同林分类型土壤持水性能研究[J].中国农业科技导报,2020,22(2):140-148. |
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| 作者姓名： | 芳菲 秦富仓 李龙 杨振奇 |
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| 作者单位： | 内蒙古农业大学沙漠治理学院, 呼和浩特 010018 |
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| 基金项目： | 内蒙古科技计划项目（201802106）。 |
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| 摘 要： | 为分析阴山北麓内蒙古武川县林地持水量和固持水土的能力，以当地柠条、油松、沙棘、油松×柠条混交林、沙棘×柠条混交林5种典型人工林林分类型为研究对象，测定了土壤物理性质、土壤水分入渗以及水分贮存特征值等指标。结果表明：不同林分类型的土壤物理特征存在显著差异（P＜0.05）。容重表现为沙棘最大（1.452 g·cm-3），油松最小（1.042 g·cm-3）；非毛管孔隙度的排序为油松＞油松×柠条混交林＞沙棘×柠条混交林＞沙棘＞柠条。各林分达到稳渗的速率与非毛管孔隙度的排序相一致，各样地的稳渗速率在0.47~1.32 mm·min-1之间，土壤入渗回归方程拟合效果较好。只有油松纯林和油松×柠条混交林更接近考斯加柯夫公式中的系数1/2。混交林地比纯林地对水分的贮存能力高，而油松×柠条乔灌木混交林比沙棘×柠条灌木混交林的最大持水量高112.8 t·hm-2。在阴山北麓地带更适合种植油松×柠条类的乔灌木混交林，乔灌木混交林能更加有效地提高林地持水功能。
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| 关 键 词： | 阴山北麓 土壤物理性质 入渗性能 土壤持水能力 |
| 收稿时间： | 2019-04-02 |
Study on Soil Water Storage Performance of Different Forest Types at the North Piedmont of Yinshan Mountains |
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| FANG Fei,QIN Fucang,LI Long,YANG Zhenqi.Study on Soil Water Storage Performance of Different Forest Types at the North Piedmont of Yinshan Mountains[J].Journal of Agricultural Science and Technology,2020,22(2):140-148. |
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| Authors: | FANG Fei QIN Fucang LI Long YANG Zhenqi |
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| Institution: | College of Desert Control Science and Engineering, Inner Mongolia Agricultural University, Huhhot 010018, China |
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| Abstract: | In order to analyze the water holding capacity of the forest land and the ability to hold water and soil in Wuchuan, Inner Mongolia, five typical plantation types such as Caragana korshinskii, Pinus tabulaeformis, Hippophae rhamnoides, Pinus tabulaeformis × Caragana korshinskii mixed forest and Hippophae rhamnoides × Caragana korshinskii mixed forest were taken as the research object to determine the soil physical properties, soil water infiltration and analyze the water storage capacity. The results showed that there were significant differences in the soil physical properties among different forest types (P<0.05). The bulk density of Hippophae rhamnoides was the largest (1.452 g·cm-3) and the Pinus tabulaeformis was the smallest (1.042 g·cm-3). The order of noncapillary porosity was Pinus tabulaeformis > Pinus tabulaeformis× Caragana korshinskii mixed forest > Hippophae ×Caragana korshinskii mixed forest > Hippophae rhamnoides > Caragana korshinskii. The order of solid permeability coefficients was consistent with the order of noncapillary porosity. Solid permeability coefficients were between 0.47~1.32 mm·min-1. The solid permeability coefficients regression equation showed that equation analog effect was good. Only the Pinus tabulaeformis and Pinus tabulaeformis × Caragana korshinskii mixed forest was closer to the coefficient 1/2 in the Koctrkob model. The water storage capacity of mixed forest was higher than that of pure forest, while the maximum waterholding capacity of Pinus tabulaeformis × Caragana korshinskii mixed forest was 112.8 t·hm-2 higher than that of Hippophae rhamnoides × Caragana korshinskii mixed forest. It was more suitable for planting Pinus tabulaeformis × Caragana korshinskii mixed forest in the northern foot of Yinshan. The mixed forest of arbor and shrub could improve the water holding capacity more effectively. |
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| Keywords: | north foot of Yinshan soil physical properties infiltration performance soil waterholding capacity |
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