红枣经济林不同植被覆盖土壤水分入渗特征

刘焕焕; 王改玲; 殷海善

引用本文:	刘焕焕,王改玲,殷海善.红枣经济林不同植被覆盖土壤水分入渗特征[J].灌溉排水学报,0,():-.
	LIU HuanHuan,WANG GaiLing,YIN HaiShan.红枣经济林不同植被覆盖土壤水分入渗特征[J].灌溉排水学报,0,():-.

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红枣经济林不同植被覆盖土壤水分入渗特征
刘焕焕¹, 王改玲¹, 殷海善²
1.山西农业大学资源环境学院;2.山西省农业科学院植物保护研究所

摘要:

采用野外双环入渗试验方法,研究不同植被覆盖对红枣经济林土壤水分入渗特征的影响,并用Philip模型、Horton模型、Kostiakov模型这三种模型对不同植被覆盖区土壤水分入渗过程进行拟合。结果表明：不同植被覆盖区土壤水分入渗速率具有相同的变化趋势,初始入渗速率>平均入渗速率>稳定入渗速率；自然生草区土壤初始入渗速率最大,为4.9020mm/min,清耕区土壤的平均入渗速率和稳定入渗速率最大,分别为2.3122mm/min,1.9528mm/min,且清耕区与自然生草区土壤初始入渗速率、平均入渗速率和稳定入渗速率均差异显著；Horton入渗模型对不同小区土壤入渗过程拟合效果最好,Philip入渗模型拟合效果次之,Kostiakov入渗模型拟合效果最差。

关键词: 红枣经济林;植被覆盖;水分入渗

DOI：

分类号:S15

基金项目:(201801D121245)资助,山西省农业科学院特色产业重点研发项目YCX2018D2T08)。

Characteristics of soil water infiltration in different vegetation cover of jujube economic forest

LIU HuanHuan¹, WANG GaiLing¹, YIN HaiShan²

1.Institute of Resource and Environment,Shanxi Agricultural University;2.Institute of Plant Protection,Shanxi Academy of Agricultural Sciences

Abstract:

The effects of different vegetation cover on soil water infiltration characteristics of jujube economic forest were studied by field double-ring infiltration test. The soil water infiltration process of different vegetation cover areas was studied by Philip model, Horton model and Kostiakov model. The results showed that the soil infiltration rate of different vegetation cover areas had the same trend, the initial infiltration rate>the average infiltration rate>the stable infiltration rate; The initial infiltration rate of the soil in the natural grass area was the highest, was 4.9020mm/min. The average infiltration rate and the stable infiltration rate of soil in clearing area were the highest, which were 2.3122mm/min and 1.9528mm/min respectively, and the initial infiltration rate, the average infiltration rate and the stable infiltration rate of the soil in the clearing area and the natural grass area were significantly different. The Horton infiltration model had the best fitting effect on soil infiltration process in different areas. The fitting effect of Philip infiltration model was second, and the Kostiakov infiltration model had the worst fitting effect.

Key words: Jujube economic forest;vegetation cover;water infiltration