摘要
利用数学模型模拟的方法分析土壤水运移过程 ,用以评价土壤 -作物 -大气循环系统的交互作用和作物需水、耗水规律。本项研究以松嫩平原典型黑土区海伦站为试验基地 ,以 1995、1997和 1999(平水年、丰水年和枯水年 )三个典型年份为样本 ,建立了土壤属性数据库、作物生长参数数据库和气象数据库。模拟了土壤水分的变化过程 ,取得了较好的结果。
The simulation and analysis of soil water content and moving in different precipitation years with math model were conducted. A special black soil on the Songnen plain was used as an experimental base in this study. A databases of soil physical properties and crop growth development and meteorology were established according to long-term measurements. The observed data in 1995, 1997 and 1999 were used to test the performance of the model with simulation of soil water content. Good correspondence was obtained.
出处
《土壤通报》
CAS
CSCD
北大核心
2002年第5期324-328,共5页
Chinese Journal of Soil Science
基金
国家自然科学基金重大项目 (49890 330 )资助
