AquaCrop模型在东北黑土区作物产量预测中的应用研究

崔颖, 蔺宏宏, 谢云, 刘素红

Application study of crop yield prediction based on AquaCrop model in black soil region of Northeast China

CUI Ying, LIN Hong-Hong, XIE Yun, LIU Su-Hong

表2 AquaCrop模型待敏感性分析参数介绍

Table 2 Introduction of parameters to be sensitive analysis in AquaCrop model

符号 Symbol	含义 Description
Pexp-up	限制冠层伸展的土壤水分消耗上限阈值。Soil water depletion threshold for canopy expansion-upper threshold.
Pexp-lw	限制冠层伸展的土壤水分消耗下限阈值。Soil water depletion threshold for canopy expansion-lower threshold.
Pexshp	限制冠层伸展的水分胁迫系数曲线的形状因子。Shape factor for Water stress coefficient for canopy expansion.
DeKc_Tr,x	因衰老、氮元素亏缺导致的作物系数下降速率。Decline of crop coefficient as a result of ageing, nitrogen deficiency.
Kc_Tr,x	冠层形成和枯萎前的作物系数。Crop coefficient before canopy formation and senescence.
Rexshp	根区根系伸展曲线的形状因子。Shape factor describing root zone expansion.
Z_min	根系初始深度。Minimum effective rooting depth.
Z_x	最大有效根深。Maximum effective rooting depth.
WP^*yf	产量形成期的归一化水分生产力。 Water productivity normalized for ET₀ and CO₂ during yield formation (as percent WP^* before yield formation).
WP^*	归一化水分生产力。Water productivity normalized for ET₀ and CO₂.
CC_x	最大冠层覆盖度。Maximum canopy cover.
CGC	冠层生长系数。Canopy growth coefficient.
CDC	冠层衰减系数。Canopy decline coefficient.
HI₀	参考收获指数。Reference harvest index.