【作者】 姚付启； 蔡焕杰； 张振华；

【Author】 Yao Fuqi~1,Cai Huanjie~1,Zhang Zhenhua~2 (1.College of Water Resources and Architectural Engineering,Northwest A &F University, Yangling 712100,China;2.College of Geography and Planning of Ludong University,Yantai 264025,China)

【机构】 西北农林科技大学水利与建筑工程学院； 鲁东大学地理与规划学院；

【摘要】 利用Trime土壤水分速测系统于2008年5月～11月对烟台市一苹果园0～180cm范围内的土壤水分进行了测定。对株间和行间同一时期不同土层深度的土壤水分、株间和行间同一土层不同时期的土壤水分变化进行了分析,并对株间和行间表层土壤水分与深层土壤水分之间的转换关系进行了研究。结果表明,苹果树根系的吸水作用使株间和行间土壤水分在垂直方向上产生差异,株间土壤水分在表层较行间土壤水分含量低,且变化幅度大;利用直线回归模型对表层与深层土壤水分进行转换时,株间经验模型拟合效果良好,而利用Biswas土壤水分估算模型对表层与深层土壤水分进行转换时,行间Biswas土壤水分估算模型拟合效果要优于株间模型。更多还原

【Abstract】 The soil water content within 0-180cm depth in an apple orchard of Yantai was determined with Trime system from May to November,2008.The soil content of the same period and different soil depth,the same soil depth and different period among plants and between rows was analyzed,and the conversion relations of the water content between surface and deeper layers was investigated.The soil water content among plants and between rows had difference at vertical direction because of bibulous effect of apples’ roots system.Compared with the soil water content between rows,the soil water content among plants was lower and had bigger change at surface layers.The linearity regression models and Biswas models were established to fit the surface and deep layers’ soil water content,and the linearity regression models among plants were excellent in fitting,but Biswas models between rows were excellent in fitting.更多还原