水稻ORYZA2000模型在陕西省的适应性评价

On Adaptability Evaluation of ORYZA2000 in Shanxi Province

采用陕西省城固县农气观测站的水稻田间观测数据,对ORYZA2000水稻模型进行参数校正与调试,分析和模拟水稻在陕西省南部的适应性.结果表明:在全球气候变暖背景下,水稻各发育期均不同程度地提前;ORYZA2000模型模拟的水稻总生物质量、穗生物质量、茎生物质量和绿叶生物质量的模拟值和观测值相关性好,且随着播期推后,水稻产量呈下降趋势.该模型能够较准确地模拟陕南地区水稻产量、生育期、各生物量和叶面积指数的动态变化.

By using the crop growth simulation model ORYZA2000 and the observation data of rice in Chenggu agricultural meteorological station in Southern of Shaanxi Province,adaptability evaluation of ORYZA2000 in Shaanxi Province has been analyzed.The results indicate that,under the background of global warming,the phonological stages of rice in advance to different extent,and that ORYZA2000 model to simulate the total biological weight,spike weight,rice stem biological weight and leaf weight of good correlation between predicted values and the values,and with the sowing date back,rice production is on the decline.