张仕林,程宏波,柴守玺,马建涛,柴雨葳,王彦萍,高甜甜,张博.基于APSIM模型的地膜覆盖与露地种植条件下旱地小麦灌浆过程模拟[J].干旱地区农业研究,2022,40(6):201~211
基于APSIM模型的地膜覆盖与露地种植条件下旱地小麦灌浆过程模拟
Simulation of grain filling process of dryland wheat under plastic film mulching and open field cultivation based on the APSIM model
  
DOI:10.7606/j.issn.1000-7601.2022.06.22
中文关键词:  小麦  灌浆  APSIM模型  积温
英文关键词:wheat  grain  APSIM model  accumulated temperature
基金项目:国家自然科学基金(31760362);国家现代农业产业技术体系(CARS-3-2-47)
作者单位
张仕林 甘肃农业大学生命科学技术学院甘肃 兰州 730070 
程宏波 甘肃农业大学生命科学技术学院甘肃 兰州 730070 
柴守玺 甘肃省干旱生境作物学重点实验室/甘肃农业大学农学院甘肃 兰州 730070 
马建涛 甘肃省干旱生境作物学重点实验室/甘肃农业大学农学院甘肃 兰州 730070 
柴雨葳 甘肃省干旱生境作物学重点实验室/甘肃农业大学农学院甘肃 兰州 730070 
王彦萍 甘肃省干旱生境作物学重点实验室/甘肃农业大学农学院甘肃 兰州 730070 
高甜甜 甘肃省干旱生境作物学重点实验室/甘肃农业大学农学院甘肃 兰州 730070 
张博 甘肃省干旱生境作物学重点实验室/甘肃农业大学农学院甘肃 兰州 730070 
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中文摘要:
      准确模拟小麦籽粒干物质积累过程可为调控小麦生产提供技术支持。基于APSIM模型模拟数据和大田实测数据同步研究旱地冬小麦籽粒干物质积累过程,并在模型验证的基础上分析积温对小麦籽粒干物质积累过程的影响。APSIM-Wheat模型模拟地膜覆盖和露地种植在灌浆期各阶段粒重和籽粒灌浆速率的决定系数大于0.92,归一化均方根误差小于16.25%,有效性指数大于0.91,表明APSIM-Wheat模型在研究区模拟小麦灌浆过程具有较好的拟合度和适应性。地膜覆盖种植优于露地种植,两年度模型模拟地膜覆盖籽粒干物质日积累量模拟值高于露地5.23%,田间实测地膜覆盖的最大灌浆速率平均高于露地10.46%,快增期平均灌浆速率高于露地13.68%,千粒重平均高于露地2.50%。Logistic进一步分析表明,地膜覆盖种植有利于提前最大灌浆速率的时间,减少灌浆渐增期、缓增期的持续时间;其次,积温通过影响籽粒干物质日积累量进而影响灌浆速率,在灌浆期大气日积温、土壤日积温与籽粒干物质日积累量均呈极显著正相关关系。
英文摘要:
      A precise simulation of wheat dry matter accumulation process may provide technical support to regulate wheat production. The data simulated by APSIM model and the field data were used to study dryland winter grain dry matter accumulation process simultaneously. Based on the model validation,the effect of accumulated temperature on wheat grain dry matter accumulation process was analyzed. The APSIM-Wheat model simulated plastic film mulching and open field planting with the coefficient of determination greater than 0.92 for grain weight and grain filling rate at each stage of grain filling.The normalized root mean square error was less than 16.25%, and the effectiveness index was greater than 0.91, indicating that the APSIM-Wheat model had a good fit and adaptability in simulating the wheat grain\|filling process in the study area. Plastic film mulching was better than open field planting. The simulated value of the dry matter accumulation of mulching grains simulated by the model was 5.23% higher than that of the open field planting in the two\|year model simulation. The maximum filling rate of the field measured in the field was on average 10.46% higher than that of the open field. The average grouting rate in the rapid growth period was 13.68% higher than that in the open field. The average in fast increase period was 13.68% higher than that in the open field. The thousand\|grain weight was on average 2.50% higher than that of the open field. Logistic further analysis showed that the plastic film mulching planting was beneficial to advance the time of the maximum grouting rate and reduce the duration of the pyramid period and slowly increase period. Secondly, the accumulated temperature affected the grain filling rate by affecting the daily accumulation of grain dry matter. During the grain filling period, the daily accumulated temperature of the atmosphere and the soil had a very significant positive correlation with the daily accumulation of grain dry matter.
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