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[目的]研究不同立体复合模式系统中的玉米田间土壤水分变化特征及产量、效益,构建适合风沙半干旱区的最优模式。[方法]选择科尔沁沙地南缘4种果粮立体复合模式(模式A1:大扁杏//花生/玉米/花生//大扁杏,模式A2:大扁杏//谷子/玉米/谷子//大扁杏,模式A3:大扁杏//大豆/玉米/大豆//大扁杏,模式B:大扁杏//玉米//大扁杏),运用土钻法对4种果粮立体复合模式玉米地进行水分动态监测,评价不同模式区的经济效益。[结果]在整个生长季果粮立体复合模式区玉米地0～60 cm土层平均含水量大小顺序为:模式A1(模式A2(模式A3(模式B。不同立体复合模式玉米单位面积产量大小顺序为:模式A1>模式A3>模式A2>模式B。从不同果粮立体复合模式的经济效益分析,模式A1经济效益较高。[结论]模式A1在风沙半干旱区表现较好。
[Objective] The research aimed to study the characteristics of soil moisture change, yield and benefit in maize field in different three-dimensional compound model system and to construct the optimum model suitable for wind-blown semi-arid area. [Method] Three kinds of three - dimensional composite patterns of fruit and grain were selected in the southern margin of Horqin sandy land (pattern A1: Apricot / peanut / corn / peanut / / Apricot, Mode A3: Apricot // Soybean / Corn / Soy // Macaron, Pattern B: Apricot // Corn // Apricot) Moisture dynamic monitoring in compound model cornfields to evaluate the economic benefits of different model regions. [Result] The order of the average water content of 0 ~ 60 cm soil layer in the three-dimensional pattern of corn grain in the three-dimensional composite grain-growing area was as follows: pattern A1 (pattern A2 As follows: pattern A1> pattern A3> pattern A2> pattern B. From the economic benefit analysis of three-dimensional composite model of grain and fruit, model A1 has higher economic benefits. [Conclusion] Pattern A1 performs better in the semi-arid and windy region.