基于APSIM模型的宁夏固原地区草粮轮作系统模拟研究  

A simulation study of grass-crop rotation system based on APSIM model in Guyuan region of Ningxia

作　　者：奥海玮 Ao Haiwei(Academic Journal Center of Ningxia University,Yinchuan 750002,China)

机构地区：[1]宁夏大学学术期刊中心,宁夏银川750002

出　　处：《农业科学研究》2020年第3期1-6,共6页Journal of Agricultural Sciences

摘　　要：针对田间草粮轮作试验周期长、监测困难、耗时耗力等问题,利用APSIM作物生长模型分别对2000—2011年12年间和2039—2050未来12年间不同气候条件下草粮轮作系统(春小麦—春小麦—春小麦、谷子—春小麦—春小麦、春小麦—谷子—春小麦、谷子—谷子—春小麦、谷子—春小麦—谷子、春小麦—谷子—谷子、春小麦—春小麦—谷子、谷子—谷子—谷子共8种轮作模式)的土壤含水量和作物产量变化情况进行模拟分析和对比。结果表明:未来气候条件下草粮轮作系统相对于历史气候条件下草粮轮作系统土壤含水量有较为明显的下降,但作物产量有所增加。小麦产量与谷子产量相比,小麦产量相对较低,谷子产量相对较高。浅层土壤含水量受降水的影响较大,波动较大。深层土壤含水量显示不断恢复趋势。春小麦—春小麦—春小麦轮作方式作物产量随轮作年限增加基本呈增长趋势。谷子—谷子—谷子轮作方式作物产量随轮作年限增加基本呈下降趋势。The field grass-crop rotation systems experiments usually need to conduct a long period,difficulty in monitoring,time consuming and so on,in order to solve this problems,with the APSIM crop growth model,correlation between soil moisture and crop production in grass-crop rotation systems(There are 8 crop rotation patterns:spring wheat-spring wheat-spring wheat,millet-spring wheat-spring wheat,spring wheat-millet-spring wheat,spring wheat-spring wheat-spring wheat,spring wheat-spring wheat-spring wheat,spring wheat-spring wheat-spring wheat)under different climates were analyzed between 2000 and 2011 and a comparative analysis was then for a prediction from 2039 till 2050.The results show that soil moisture will significantly decrease while crop production will increase to some extent.The yield of wheat compared with the yield of millet,Tthe yield of wheat is relatively low and the yield of millet is relatively high.The water content of shallow soil is affected by precipitation and fluctuates greatly.The water content of deep soil shows the trend of recovery.Spring wheat-spring wheat-spring wheat crop production basically increases with the increase of crop rotation years.Crop production of millet-millet-millet basically decreases with the increase of crop rotation year.

关 键 词：APSIM 草粮轮作 土壤含水量 作物产量 固原地区 

分 类 号：S181[农业科学—农业基础科学]