紫花苜蓿和斜茎黄耆水力提升作用及其对伴生植物的效应

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朱林¹^,²^,^*(

), 王甜甜¹^,², 赵学琳¹^,², 祁亚淑³, 许兴¹^,²

Hydraulic lift of Medicago sativa and Astragalus laxmannii and its effect on their neighborhood plants

ZHU Lin¹^,²^,^*(

), WANG Tian-Tian¹^,², ZHAO Xue-Lin¹^,², QI Ya-Shu³, XU Xing¹^,²

图3. 4-10月份各单混播组合土壤含水量日最大值、最小值及昼夜差值(平均值+标准偏差)。
AA、BB表示紫花苜蓿及斜茎黄耆单播, AC1、AC2、AC3与BC1、BC2、BC3分别表示比例为3:7、5:5、7:3的禾豆牧草混播组合。不同小写字母表示不同混播方式间的土壤含水量差异显著(p < 0.05)。

Fig. 3. The maximum, minimum of daily soil water content and differences in the soil water content between the mid-day and mid-night for the different mixed sowing or single sowing combinations from April to October (mean + SD).
AA and BB represent single sowing of Medicago sativa and Astragalus laxmannii, respectively. AC1, AC2, AC3, BC1, BC2 and BC3 represent the mixed sowing combinations of Medicago sativa and Astragalus laxmannii with gramineous forage in lowercase proportions of 3:7, 5:5 and 7:3, respectively. Different lowercase letters represent differences in soil water content between different mixed sowing combinations at the level of 0.05.