Research of Winter Wheat Yield in Different Water Production Function and Multi-Level Groundwater Control Depth

基於不同水分生產函數及多級地下水控制埋深模式下冬小麥產量模擬比選研究

10.6937/TWC.202009/PP_68(3).0007

雷鳴(MING LEI)；朱梅(MEI ZHU)；王振龍(ZHEN-LONG WANG)；朱玲玲(LING-LING ZHU)；齊引凡(YIN-FAN QI)

crop water production function ； groundwater depth ； winter wheat yield ； Jensen model ； Blank model ； 水分生產函數 ； 地下水埋深 ； 冬小麥產量 ； Jensen模型 ； Blank模型

台灣水利

68卷3期（2020 / 09 / 01）

77 - 86

英文

Winter wheat is a kind of typical crops in Huaibei plain. Basing on the long sequence of the lysimeter in Wudaogou Hydrology and Water Resources Experimental Station, this research adopted the continuous data from 2008 to 2012. Groundwater utilization limited depth in two kinds of soil Shajiang black soil and Yellow fluvo-acquatic soil was analyzed. Eight control depths 0.2, 0.4, 0.6, 0.8, 1.0, 1.5, 2.0, and 3.0 m were set for experiment, and the differences in winter wheat growth characteristics under different buried depths were analyzed. Blank model and Jensen model were used to simulate the crop yield. The results showed that average plant height, thousand kerner weight and yield of winter wheat reached the maximum when buried at 1.0 m depth. The yield was most sensitive to the change of groundwater depth. It showed a trend of increasing first and then decreasing. For Blank model, the simulated yields of winter wheat increased by 5-20% than actual yields in Shajiang black soil with groundwater depth of 0.2, 0.8 and 1.0 m, and increased by 2-23% in Yellow fluvo-acquatic soil. The range of variation between simulated and actual yields of Jensen's model at six burial depths (0.2, 0.4, 0.6, 0.8, 1.0, 1.5 m) was only 1-9%. The simulation result was closer to reality. In comparison, Jensen model has a slightly better fitting effect in Huaibei Plain than Blank model.

以淮北平原典型作物冬小麥為研究對象，依據五道溝水文水資源實驗站地中蒸滲儀長序列、不間斷的專項實驗資料，同時考慮淮北平原兩種典型土質砂礓黑土和黃潮土對地下水利用的極限埋深，制定了0.2，0.4，0.6，0.8，1.0，1.5，2.0，3.0 m八個控制埋深，分析不同埋深下冬小麥生長特徵值的差異。運用兩種作物－水模型Blank模型、Jensen模型對冬小麥的產量進行模擬分析。結果表明：在地下水埋深為1.0 m時，冬小麥的平均株高、千粒重和產量達到最大值，其中產量隨地下水埋深的變化最為敏感，呈現出先增大後減少的趨勢；運用兩種模型對冬小麥產量進行模擬， Blank模型模擬冬小麥產量在砂礓黑土中0.2 m、0.8 m和1.0 m地下水埋深下模擬產量比實際產量增加5%－20%，在黃潮土中增加2%－23%，Jensen模型在六種（0.2，0.4，0.6，0.8，1.0，1.5 m）埋深下的模擬產量與實際產量相比變幅僅為1%－9%之間，模擬效果更趨近於實際。比較而言Jensen模型在淮北平原的模擬效果要略優於Blank模型。

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