未来气象条件下旱地春小麦产量及生物量对施氮量和播期变化的响应模拟

王志刚, 刘强, 王谨, 巩敬锦, 姚群英

Simulation of Response of Spring Wheat Yield and Biomass to Nitrogen Application Rate and Sowing Date in Dryland under Future Meteorological Conditions

Wang Zhigang, Liu Qiang, Wang Jin, Gong Jingjin, Yao Qunying

表1 土壤特性

Table 1 Soil properties

土层深度 Soil depth (cm) 容重 Bulk density (g/cm3) 风干含水率 Air-dried moisture (mm/mm) 土壤导水率 Soil hydraulic conductivity (mm/h) 饱和含水率 Saturated moisture (mm/mm) 0~5 1.290 0.013 0.013 0.460 5~10 1.226 0.013 0.013 0.490 10~30 1.325 0.046 0.046 0.450 30~50 1.200 0.071 0.071 0.500 50~80 1.140 0.087 0.087 0.520 80~110 1.140 0.103 0.103 0.520 110~140 1.250 0.107 0.107 0.480 140~170 1.120 0.115 0.115 0.530 170~200 1.110 0.127 0.127 0.530