%0 Journal Article
%T A FINITE ELEMENT MODEL OF TILLAGE OPERATIONS AND ITS APPLICATION<br>耕作的数值模型及其应用
%A YANG Bangjie
%A <br>杨邦杰
%J 生态学报
%D 1996
%I 
%X The soil moisture and temperature are key factors to abed gemination and seedling emergence.A finite element model was developed to study the seedbed soil moisture, and temperature as affected by tillage operations based on the numerical analysis method of heat and water exchange between the atmosphere and heterogeneous soil surface developed by the author.A simulation study shows effects of different tillage operations such as level sowing,minimum tillage and ridge and furrow tillage on the seedbed moisture and temperature.The model was also used to optimize the furrow sowing in North-Weatern China. This study developed a quantitative method for the agro-ecological research based on the methodology of modeling-simulation optimization.
%K soil moisture
%K soil temperature
%K tillage
%K modeling
%K finite element method<br>耕作
%K 土壤水分
%K 土壤温度
%K 数值模型
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=FE163E5DB2274E5937319DE98913EC37&aid=9065C7B7584ED2D7471E3DA169B094B0&yid=8A15F8B0AA0E5323&vid=7801E6FC5AE9020C&iid=B31275AF3241DB2D&sid=E543FC2C7CA75C74&eid=ED9DF3402785F68D&journal_id=1000-0933&journal_name=生态学报&referenced_num=0&reference_num=5