引黄泥沙与腐殖酸对滨海粘质盐土主要水分常数的影响  

Effects of Yellow River Sediments and Humic Acid on Main Soil Moisture Constant of Coastal Clay Saline Soil

作　　者：周志康 毛伟兵[1] 孙玉霞[1] 高绪龙 陈超帆 ZHOU Zhi-kang;MAO Wei-bing;SUN Yu-xia;GAO Xu-long;CHEN Chao-fan(College of Hydraulic and Civil Engineering/Shandong Agricultural University,Tai'an 271018,China;Gaomi Water Resources Bureau,Weifang 261500,China;West Coast New District Tieshan Subdistrict Office of Qingdao,Qingdao 266423,China)

机构地区：[1]山东农业大学水利土木工程学院,山东泰安271018 [2]高密市水利局,山东潍坊261500 [3]青岛市西海岸新区铁山街道办事处,山东青岛266423

出　　处：《山东农业大学学报（自然科学版）》2023年第1期112-118,共7页Journal of Shandong Agricultural University：Natural Science Edition

基　　金：山东省重点研发计划项目(2019GSF109014)。

摘　　要：为确定不同引黄泥沙和腐殖酸配施量对滨海粘质盐土田间持水量和大孔隙水含量的影响,探究最适宜的引黄泥沙和腐殖酸配施量。采用双因素方差分析法对土壤水分含量进行分析,研究了不同引黄泥沙和腐殖酸配施量对土壤凋萎系数、毛管断裂含水量、田间持水量、饱和含水量和大孔隙水含量的影响。结果表明:①引黄泥沙和腐殖酸配施可以提高土壤凋萎系数、毛管断裂含水量、田间持水量、饱和含水量,其中S4T1、S4T2、S4T3、S4T4四个处理的土壤凋萎系数比对照处理分别增加了82.10%、82.68%、81.31%和81.92%;S4T1、S4T2、S4T3、S4T4四个处理的土壤毛管断裂含水量比对照处理分别增加了31.70%、42.03%、43.73%和46.70%;S4T4、S4T3、S4T2和S4T1四个处理的土壤田间持水量比对照处理分别增加了46.70%、43.73%、42.03%和31.70%;S3T4、S2T4、S3T2、S3T3四个处理的土壤饱和含水量比对照处理分别增加了15.41%、14.78%、14.49%和14.03%。②引黄泥沙和腐殖酸配施可以提高土壤大孔隙水含量,其中S1T3、S1T4、S2T2、S2T3四个处理的土壤大孔隙水含量比对照处理增加了16.12%、17.97%、16.34%、16.32%。综合考虑,在改良黄河三角洲地区粘质盐土时,引黄泥沙和腐殖酸配施量为150 t/hm2和0.9 t/hm2最合适。In order to determine the effects of different dosage of Yellow River sediments and humic acid on field water holding capacity and macropore water content of coastal clay saline soil,to explore the most suitable Yellow River sediments and humic acid dosage.Two-factor ANOVA method was used to analyze the soil moisture content,and the effects of different dosage of Yellow River sediments and humic acid on wilting point,capillary rapture moisture,field water holding capacity,saturated water content and macropore water content were studied.The results show that:①The combined application of Yellow River sediments and humic acid could increase wilting point,capillary rapture moisture,field water holding capacity and saturated water content.Compared with the CK,the soil wilting point of S4T1,S4T2,S4T3 and S4T4 increased of 82.10%,82.68%,81.31%and 81.92%,respectively.Compared with the CK,the soil capillary rapture moisture of S4T1,S4T2,S4T3 and S4T4 increased of 31.70%,42.03%,43.73%and 46.70%,respectively.Compared with the CK,the field water holding capacity of S4T4,S4T3,S4T2 and S4T1 increased of 46.70%,43.73%,42.03%and 31.70%,respectively.Compared with the CK,the saturated water content of S3T4,S2T4,S3T2 and S3T3 increased of 15.41%,14.78%,14.49%and 14.03%,respectively.②The combined application of Yellow River sediments and humic acid could increase the content of soil macropore water,Compared with the CK,the content of soil macropore water of S1T3,S1T4,S2T2 and S2T3 increased of 16.12%,17.97%,16.34%and 16.32%,respectively.It is concluded that 150 t/hm2 of Yellow River sediments and 0.9 t/hm2 of humic acid are the most suitable dosage for improving the clay salt soil in the Yellow River Delta.

关 键 词：引黄泥沙 腐殖酸 滨海粘质盐土 水分常数 

分 类 号：S156.42[农业科学—土壤学]