栽培番茄的塿土和黄绵土水分和温度变化规律-生态学报.PDF

第 35 卷第 7 期 生 态 学 报 Vol.35,No.7 2015年4月 ACTA ECOLOGICA SINICA Apr.,2015 DOI:10.5846/ stxb201305311256 王科锋,梁银丽,张朝文,穆兰,石国华.栽培番茄的塿土和黄绵土水分和温度变化规律.生态学报,2015,35(7):2161鄄2169. Wang K F,LiangYL,ZhangCW,MuL,ShiGH.Theperiodicitiesofwatercontentandtemperaturevariationfortomatoesinthecumuliccinnamonsoils and the loessial soils.Acta Ecologica Sinica,2015,35(7):2161鄄2169. 栽培番茄的塿土和黄绵土水分和温度变化规律 1 1,2,* 1 2 1 王科锋 ,梁银丽 ,张朝文 ,穆摇 兰 ,石国华 1西北农林科技大学林学院,杨凌摇 712100 2 中国科学院水利部水土保持研究所,杨凌摇 712100 摘要:用土柱试验,研究了栽培樱桃番茄(Lycopersicon esculentum var.cerasiforme Alef.)的塿土和黄绵土水分运移和温度变化规 律,水分运移模型选用土壤中水分分布的动力学模型,土壤温度、空气温湿度变化选用正弦曲线模型。 结果表明:塿土在各个不 同深度的平均含水量均高于黄绵土,塿土的入渗速率高于黄绵土,同一深度塿土温度高于黄绵土,土壤温度随着深度的增加具 有明显的滞后性;黄绵土中樱桃番茄的水分利用效率大于塿土,空气温湿度、土壤温度和土壤含水量相互影响。 水分运移模型 在土壤浅层处可以得到很好的拟合效果,在拟合方程的变量范围内,根据时间可以较准确的确定樱桃番茄盛果期土壤浅层含水 量,对于进一步提高农业干旱防御能力、有效制定节水灌溉计划、提高水分利用效率提供了理论依据。 关键词:土壤水分运移;塿土;黄绵土;温度;樱桃番茄 The periodicities of water content and temperature variation for tomatoes in the cumulic cinnamon soils and the loessial soils 1 1,2,* 1 2 1 WANG Kefeng ,LIANG Yinli ,ZHANG Chaowen ,MU Lan ,SHI Guohua 1NorthwestAgriculture and Forestry University,Yangling 712100,China 2Institute of Soil and Water Conservation,ChineseAcademy of Sciences andMinistry of WaterResources,Yangling 712100,China Abstract:In this paper we report the findingsfrom experiments using soil columns to investigate changes in water content and temperature in cumulic cinnamon soils and loessial soils which were used to grow cherry tomatoes (Lycopersicon esculentumvar. cerasiforme Alef.). A mathematical model for soil water distributions was used to simulate the vertical changes in soilswater,and a sinusoid model was selected to analyse soil and air tempera