【摘要】 通过观测和理论推导,分析研究了小黑杨幼龄林对土壤水的实际消耗量。结果表明:嫩江流域中下游段小黑杨10年生幼龄林在生长季实际蒸散量为330.1 mm,蒸散与降水比为73.4%;在干旱的春季,水分亏缺比较严重,5～6月亏缺37.2 mm。更多还原

【Abstract】 By determination and theory,actual consumption of Populus simonii×nigra was analysed and studied.Results show that actual evapotranspiration of 10-year-old young growth of Populus simonii×nigra is 330.1 mm in middle and lower reaches of Nenjiang valley,the ratio of evapotranspiration to precipitation is 73.4%.Water deficit is severer in arid spring and is 37.2 mm in May and June.更多还原