降雨过程中土壤物理结皮入渗情况及当量孔径的变化研究

doi:10.13866/j.azr.2023.10.07

Abstract

Abstract:

Pore size in the soil physical crust directly affects soil water infiltration and gas exchange. However, few studies have investigated the changes in pore size within the soil physical crust during rainfall events. This study has utilized Lou soil as the research object and artificial rainfall simulations, with microdisk infiltration apparatus to study the infiltration of the soil physical crust under different rainfall intensities and the pore size changes. The results show that under the pressure head of -0.5 cm, the infiltration rate of the structural crust decreases with the rainfall duration and then increases after 20 min. As rainfall progresses, the proportion of large pores in the two types of crusts begins to decrease, and the proportion of medium pores increases. The proportion of small pores in the structural crust decreases at 20 min, and the proportion of medium pores in the sedimentary crust remains unchanged at 10 min. The average pore size for the two types of crusts was found to decrease with the extension of the rainfall duration. During the increase in the negative pressure head, the effective infiltration capacity of the soil crust decreased. When the soil crust developed completely, the infiltration rate tended to be stable.

Key words: soil physical crust, equivalent diameter of soil pore, artificial simulated rainfall, micro-disc infiltration instrument, permeability

LIU Guanheng, WU Guanyu, LI Jiande, WANG Jian, YANG Qinxia, XUE Dong. Equivalent pore size characteristics in the soil physical crust[J].Arid Zone Research, 2023, 40(10): 1608-1614.

Figures/Tables 5

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Tab. 2

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References 20

[1]	许海超, 李子君, 林锦阔, 等. 燕山土石山区降雨和下垫面条件对坡面侵蚀产沙的影响[J]. 山地学报, 2016, 34(1): 46-53.
	[Xu Haichao, Li Zijun, Lin Jinkuo, et al. Influences of rainfall and underlying surface conditions on soil erosion and sediment yield in Yanshan rocky mountain area[J]. Mountain Research, 2016, 34(1): 46-53.]
[2]	李桂芳, 郑粉莉, 卢嘉, 等. 降雨和地形因子对黑土坡面土壤侵蚀过程的影响[J]. 农业机械学报, 2015, 46(4): 147-154, 182.
	[Li Guifang, Zheng Fenli, Lu Jia, et al. Effects of rainfall and topography on soil erosion processes of black soil hillslope[J]. Transactions of the Chinese Society for Agricultural Machinery, 2015, 46(4): 147-154, 182.]
[3]	陈琳, 王健, 霍春平, 等. 坡耕地土壤物理结皮分层颗粒组成特征研究[J]. 土壤学报, 2023, 60(4): 985-992.
	[Chen Lin, Wang Jian, Huo Chunping, et al. Study on particle distribution characteristics of soil physical crust profile in sloping farmland[J]. Acta Pedologica Sinica, 2023, 60(4): 985-992.]
[4]	吴发启, 范文波. 坡耕地土壤结皮形成的影响因素分析[J]. 水土保持学报, 2002, 16(1): 33-36.
	[Wu Faqi, Fan Wenbo. Analysis on factors affecting soil crust formation on slope farmland[J]. Journal of Soil and Water Conservation, 2002, 16(1): 33-36.]
[5]	路培. 土壤结皮形成机制及空间分布对侵蚀的影响研究[D]. 杨凌: 西北农林科技大学, 2018.
	[Lu Pei. Formation of Soil Crust and its Effects of Different Spatial Distributions of Physical Soil Crusts on Runoff and Erosion[D]. Yangling: Northwest A ＆ F University, 2018.]
[6]	李浩宏, 王占礼, 申楠, 等. 土壤结皮研究进展[J]. 人民黄河, 2015, 37(10): 92-98.
	[Li Haohong, Wang Zhanli, Shen Nan, et al. Research progress of soil crust[J]. Yellow River, 2015, 37(10): 92-98.]
[7]	吴秋菊, 吴佳, 王林华, 等. 黄土区坡耕地土壤结皮对入渗的影响[J]. 土壤学报, 2015, 52(2): 303-311.
	[Wu Qiuju, Wu Jia, Wang Linhua, et al. Effects of soil crusts on infiltration in slope land in the loess area[J]. Acta Pedologica Sinica, 2015, 52(2): 303-311.]
[8]	杨昌, 王健, 李建德, 等. 土壤表层结皮失水裂缝形态发育规律研究[J]. 灌溉排水学报, 2021, 40(10): 103-108, 124.
	[Yang Chang, Wang Jian, Li Jiande, et al. Formation of crusts and initiation and development of cracks in them following soil wetting and drying[J]. Journal of Irrigation and Drainage, 2021, 40(10): 103-108, 124.]
[9]	李志熙, 白岗栓, 邹超煜, 等. 自然生草对渭北旱塬苹果园土壤孔隙和水分入渗的影响[J]. 中国农业大学学报, 2022, 27(5): 146-156.
	[Li Zhixi, Bai Gangshuan, Zou Chaoyu, et al. Effects of self-sown grass on soil porosity and soil infiltration in apple orchard in Weibei dry plateau[J]. Journal of China Agricultural University, 2022, 27(5): 146-156.]
[10]	夏青, 何丙辉. 土壤物理特性对水力侵蚀的影响[J]. 水土保持应用技术, 2006(5): 12-15.
	[Xia Qing, He Binghui. Effect of soil physical properties on water erosion[J]. Technology of Soil and Water Conservation, 2006(5): 12-15.]
[11]	单奇华, 李卫正, 俞元春, 等. 南京城市林业土壤可蚀性及影响因素[J]. 南京林业大学学报(自然科学版), 2008, 32(2): 47-50.
	[Shan Qihua, Li Weizheng, Yu Yuanchun, et al. Erodibility of urban forest soil in nanjing[J]. Journal of Nanjing Forestry University, 2008, 32(2): 47-50.]
[12]	丁绍兰, 王振, 赵串串, 等. 青海黄土丘陵区沟蚀侵蚀模数与其影响因子关系分析[J]. 干旱区资源与环境, 2012, 26(6): 60-65.
	[Ding Shaolan, Wang Zhen, Zhao Chuanchuan, et al. The relationship between the erosion modulus and the influence factors in the loess hilly and gully area[J]. Journal of Arid Land Resources and Environment, 2012, 26(6): 60-65.]
[13]	李建德, 王健, 徐飞飞, 等. 不同负压设置对微型盘式入渗仪测定结皮入渗性能的影响[J]. 灌溉排水学报, 2022, 41(7): 78-85.
	[Li Jiande, Wang Jian, Xu Feifei, et al. Effect of suction in the infiltrometer on water infiltration into crusted soils[J]. Journal of Irrigation and Drainage, 2022, 41(7): 78-85.]
[14]	卜崇峰, 石长春, 蔡强国. 土壤结皮几种分析测算指标的应用评价[J]. 水土保持学报, 2009, 23(2): 240-243.
	[Bu Chongfeng, Shi Changchun, Cai Qiangguo. Evaluation on calculation on index for soil crust development[J]. Journal of Soil and Water Conservation, 2009, 23(2): 240-243.]
[15]	付秋萍, 王全九, 樊军. Philip公式确定吸渗率时间尺度研究[J]. 干旱地区农业研究, 2009, 27(4): 65-70.
	[Fu Qiuping, Wang Quanjiu, Fan Jun. Study on the time scales of soil sorptivety determined by Philip equation[J]. Agricultural Research in the Arid Areas, 2009, 27(4): 65-70.]
[16]	马金龙, 许欢欢, 王兵, 等. 黄土高原坡耕地土壤物理结皮对坡面产流产沙过程的影响[J]. 水土保持学报, 2022, 36(1): 45-49.
	[Ma Jinlong, Xu Huanhuan, Wang Bing, et al. Effect of soil physical crust on runoff and sediment yield on sloping farmland of the Loess Plateau[J]. Journal of Soil and Water Conservation, 2022, 36(1): 45-49.]
[17]	付广军, 廖超英, 孙长忠. 毛乌素沙地土壤结皮对水分运动的影响[J]. 西北林学院学报, 2010, 25(1): 7-10.
	[Fu Guangjun, Liao Chaoying, Sun Changzhong. The Effects of soil crust to water movement in Maowusu Sand Land[J]. Journal of Northwest Forestry University, 2010, 25(1): 7-10.]
[18]	王荣女. 毛乌素沙地不同类型生物土壤结皮-土壤呼吸的季节变化特征[J]. 干旱区研究, 2021, 38(4): 961-972.
	[Wang Rongnv. Seasonal variation characteristics of different types of biological soil crust-soil system respiration in Mu Us Sandy Land[J]. Aird Zone Research, 2021, 38(4): 961-972.]
[19]	许志平, 邵天杰, 张连凯, 等. 黄土区不同土地利用类型下砂质壤土地表CO₂通量变化特征——以清凉寺沟流域为例[J]. 干旱区研究, 2021, 38(4): 1000-1009.
	[Xu Zhiping, Shao Tianjie, Zhang Liankai, et al. Study on the change of surface CO₂ flux in sandy loamy soil under different land use types: An example from the Qingliangsi ditch watershed[J]. Aird Zone Research, 2021, 38(4): 1000-1009.]
[20]	蔡强国. 流域产沙模型概述[J]. 中国水土保持, 1990(6): 16-20, 64-65.
	[Cai Qiangguo. Review on the modelling of sediment yield from watershed[J]. Soil and Water Conservation in China, 1990(6): 16-20, 64-65.]

土壤类型	土壤质地	碳酸钙含量/(g·kg^-1)	有机质含量/(g·kg^-1)	pH值	容重/(g·cm^-3)	颗粒组成/%
土壤类型	土壤质地	碳酸钙含量/(g·kg^-1)	有机质含量/(g·kg^-1)	pH值	容重/(g·cm^-3)	<0.002 mm	0.002~0.02 mm	0.02~0.2 mm	0.2~2.0 mm
塿土	粉砂壤土	84.8	8.53~22.7	8.29~8.40	1.30	10.32	57.93	30.18	1.57

降雨历时	结构结皮						沉积结皮
降雨历时	-0.5 cm	-1 cm	-2 cm	-3 cm	-4 cm	-5 cm	-0.5 cm	-1 cm	-2 cm	-3 cm	-4 cm	-5 cm
0 min	52.49	19.09	14.32	7.16	7.16	2.39	52.49	19.09	14.32	7.16	7.16	2.39
5 min	26.84	17.43	12.09	6.85	3.37	3.25	20.69	16.03	5.96	5.48	0.00	1.85
10 min	25.97	16.87	16.87	10.02	8.44	4.32	17.66	13.96	5.90	7.26	2.73	0.00
15 min	17.43	12.93	12.93	8.75	6.36	4.72	10.80	10.12	5.06	5.31	2.49	0.00
20 min	23.53	20.25	16.31	13.14	11.81	5.51	9.59	7.59	5.90	5.62	3.22	0.00
30 min	14.95	13.50	11.76	8.44	8.44	4.45	9.75	10.54	6.07	5.80	3.04	3.30

Equivalent pore size characteristics in the soil physical crust

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