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Position: Home > Articles > Calibration and validation of crop model CropSyst in typical black soil zone of Songnen Plain Transactions of the Chinese Society of Agricultural Engineering 2005,21 (5) 47-50

CropSyst作物模型在松嫩平原典型黑土区的校正和验证

作  者:
王宗明;张柏;宋开山;段洪涛
单  位:
中国科学院东北地理与农业生态研究所
关键词:
作物生产力;作物模拟模型;CropSyst模型;松嫩平原黑土区
摘  要:
通过对CropSyst作物模拟模型进行修订和验证,应用该模型对松嫩平原黑土区主要作物的生产潜力进行了模拟,并对作物生产力模拟的有效方法进行了初步探索。模拟结果表明,对于主要作物的经济产量、全生育期蒸散量、收获时的地上生物量,模拟值与实测值较为接近。模拟值和实测值的均方根误差RMSE为3.59%(小麦地上生物量)~8.02%(小麦产量),模拟性能指数EF最小为0.76(玉米蒸散量),最大为0.90(小麦产量)。
译  名:
Calibration and validation of crop model CropSyst in typical black soil zone of Songnen Plain
作  者:
Wang Zongming, Zhang Bai, Song Kaishan, Duan Hongtao(Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Changchun 130012, China)
关键词:
crop productivity; crop simulation model; CropSyst model; black soil zone of Songnen plain
摘  要:
The crop simulation model, CropSyst, was revised and validated in this paper. The potential productivity of main crops in the black soil zone of Songnen Plain was simulated by using CropSyst model. In addition, effective methods for simulation of crop productivity were explored. Study results show that the simulated values approach the measured values of some indexes for wheat and maize, such as yield, ET and aboveground biomass. The RMSE between simulated data and observed data ranged from 3.59% for aboveground biomass of wheat, to 8.02% for wheat yield. The modeling efficiency, EF were from 0.76 for maize ET, to 0.90 for wheat yield.

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