黄土高原半干旱荒漠地区盐碱地优良豆科牧草适应性评价

Adaptability Evaluation of Fine Legume Forage in Saline and Alkaline Land in Semi-arid Desert Area on Loess Plateau

筛选适宜黄土高原半干旱荒漠地区盐碱地生长的优良豆科牧草草种,为盐碱化草地植被恢复与重建提供适宜的豆科牧草资源,对该区草地生态功能恢复和畜牧业可持续发展具有重要的现实意义。文章在典型盐碱地上对引进和采集的13个耐寒性较强的豆科牧草品种的种子发芽特性和生长特性等进行了研究。结果表明:中兰2号紫花苜蓿、毛苕子和沙打旺3个耐盐牧草品种,对黄土高原半干旱荒漠地区盐碱地气候和土壤环境适应性较好,其中中兰2号表现最佳。

Screening fine legume forage adapting to saline and alkaline land in semi-arid desert area on Loess Plateau is good for salinized grassland restoration and reconstruction and also is important for grassland ecological function regain and animal husbandry development. 13 legume varieties living in typical saline and alkaline land with strong cold tolerance were chosen and their seed germination and growth characteristics were studied. Results showed that three of the legumes,Medicago sativa L. cv.Zhonglan No.2,Vicia villosa Roth.and Astragalus albus Pall.,were salt tolerant varieties and could adapt to the saline and alkaline soil environment in semi-arid desert area on Loess Plateau,and Medicago sativa L. cv.Zhonglan No.2 was the best.