花石崖不同植被类型土壤水分特征  

Soil moisture characteristics of different vegetation types in Huashiya Town

作　　者：南正正 杨妮 贾雨如 古孟怡 刘长海[1,2] NAN Zhengzheng;YANG Ni;JIA Yuru;GU Mengyi;LIU Changhai(School of Life Sciences,Yan’an University;Shaanxi Key Laboratory of Chinese Jujube,Yan’an 716000,China)

机构地区：[1]延安大学生命科学学院 [2]陕西省红枣重点实验室,陕西延安716000

出　　处：《延安大学学报（自然科学版）》2023年第2期49-53,共5页Journal of Yan'an University：Natural Science Edition

基　　金：国家自然科学基金项目(32060297,31370541);国家级大学生创新训练计划项目(S202210719031)。

摘　　要：为充分了解黄土高原不同植被类型与土壤水分之间的关系,选择陕西省神木市花石崖镇5种典型植被类型刺槐、木枣、侧柏、柠条和草地为研究对象,采用单因素方差分析法比较不同样地间土壤水分的差异性。结果表明:在0~100 cm土层,研究区不同植被类型间土壤含水量和土壤蓄水量均存在显著性差异(P<0.05),均表现为草地>柠条>木枣>侧柏>刺槐。不同植被类型平均土壤水分亏缺度表现为刺槐>柠条>侧柏>木枣>草地,其中只有草地土壤水分不存在亏缺。综上,处于自然恢复状态下的草地对研究区土壤水分的维持具有相对积极的意义。In order to fully understand the relationship between different vegetation types and soil moisture in the Loess Plateau,five typical vegetation types of Robinia pseudoacacia,jujube,Platycladus orientalis,Caragana korshinskii and grassland in Huashiya Town,Shenmu City,Shaanxi Province were selected as the research objects,and the differences of soil moisture in different areas were compared by one-way ANOVA.The results showed that:in the 0~100 cm soil layer,there were significant differences in soil water content and soil water storage among different vegetation types in the study area(P<0.05),demonstrating that grassland>Caragana>jujube>Platycladus orientalis>Robinia pseudoacacia.The average soil water deficit of different vegetation types was Robinia pseudoacacia>Caragana>Platycladus orientalis>jujube>grassland,in which only grassland soil water did not exist.In conclusion,the grassland under the natural restoration mode has positive significance for the maintenance of soil moisture in the study area.

关 键 词：花石崖 土壤含水量 土壤蓄水量 土壤水分亏缺度 不同植被类型 

分 类 号：S152.7[农业科学—土壤学]