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Position: Home > Articles > Adaptability of APSIM model in Southwestern China: A case study of winter wheat in Chongqing City Chinese Journal of Applied Ecology 2015,26 (4) 1237-1243

APSIM模型在西南地区的适应性评价——以重庆冬小麦为例

作  者:
戴彤;王靖;赫迪;张建平;王娜
单  位:
重庆市气象科学研究所;中国农业大学资源与环境学院
关键词:
重庆;冬小麦;APSIM模型;调参;验证
摘  要:
利用重庆市4个代表性站点的小麦田间观测数据和同期逐日气象数据对APSIM模型在重庆小麦产区的适应性进行研究,确定了12个小麦品种的作物参数.结果表明:模拟小麦的播种至出苗、开花和成熟各阶段天数与实测值具有较好的一致性,其均方根误差值分别为0~3、1~8和0~8 d;模拟的12个小麦品种中,模拟与实测地上部分生物量的归一化均方根误差(NRMSE)均低于30%,10个品种模拟与实测产量的NRMSE均低于30%,作物生育期、地上部分生物量和产量的模拟结果均在可接受范围内波动.说明APSIM模型对不同品种冬小麦的生育期、地上部分生物量和产量模拟效果较好,该模型在重庆地区具有较好的适应性,为后续基于模型评估该地区小麦生产提供了基础支撑.
译  名:
Adaptability of APSIM model in Southwestern China: A case study of winter wheat in Chongqing City
作  者:
DAI Tong;WANG Jing;HE Di;ZHANG Jian-ping;WANG Na;College of Resource and Environmental Sciences,China Agricultural University;Chongqing Institute of Meteorological Sciences;
关键词:
Chongqing City;;winter wheat;;APSIM model;;calibration;;validation
摘  要:
Field experimental data of winter wheat and parallel daily meteorological data at four typical stations in Chongqing City were used to calibrate and validate APSIM-wheat model and determine the genetic parameters for 12 varieties of winter wheat. The results showed that there was a good agreement between the simulated and observed growth periods from sowing to emergence,flowering and maturity of wheat. Root mean squared errors( RMSEs) between simulated and observed emergence,flowering and maturity were 0-3,1-8,and 0-8 d,respectively. Normalized root mean squared errors( NRMSEs) between simulated and observed above-ground biomass for 12 study varieties were less than 30%. NRMSE between simulated and observed yields for 10 varieties out of 12 study varieties were less than 30%. APSIM-wheat model performed well in simulating phenology,aboveground biomass and yield of winter wheat in Chongqing City,which could provide a foundational support for assessing the impact of climate change on wheat production in the study area based on the model.

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