青藏高原高寒区青稞光温生产潜力和产量差时空分布特征及其对气候变化的响应

弓开元,何亮,邬定荣,吕昌河,李俊,周文彬,杜军,于强

Spatial-Temporal Variations of Photo-Temperature Potential Productivity and Yield Gap of Highland Barley and Its Response to Climate Change in the Cold Regions of the Tibetan Plateau

KaiYuan GONG,Liang HE,DingRong WU,ChangHe LÜ,Jun LI,WenBin ZHOU,Jun DU,Qiang YU

表3 1977—2017年青藏高原站点生长季内气候变化倾向率

Table 3 Trend of climatic factors during the growing season of highland barley on Tibetan Plateau from 1977 to 2017

站点 Station 平均气温 Average temperature (℃·(10a)-1) 最高气温 Maximum temperature (℃·(10a)-1) 最低气温 Minimum temperature (℃·(10a)-1) 降水 Precipitation (mm·(10a)-1) 太阳辐射 Radiation (MJ·m-2·(10a)-1) 有效积温 Accumulated temperature (℃·d·(10a)-1) 日照时数 Solar duration (h·(10a)-1) GTA 0.39** 0.42** 0.39** -2.11 19.19 61.28** 12.75 GN 0.28** 0.25** 0.29** 29.18** -19.30 42.52** -12.38 MHA 0.59** 0.56** 0.73** 1.24 -22.70 89.71** -15.15 LZ 0.36** 0.31** 0.40** 14.63 -72.91** 65.40** -50.07** SN 0.26** 0.38** 0.56** 1.89 -20.87 47.29** -13.55 RKZ 0.41** 0.28** 0.51** 8.32 -3.70 74.84** -2.06 LS 0.49** 0.42** 0.78** 31.42** 24.08 90.64** 16.84