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在海拔4380米的西藏错那市航天育种高原牧草选育实验基地,“天选之种”牧草深深扎根于高原冻土之中。这是陕西航天育种团队与西藏农牧人十年攻坚的结晶,更是新时代雪域儿女在高原大地上重绘家园的底色。
在实验过程中,科研人员克服了高原恶劣的自然环境和复杂的气候条件,精心培育适合当地生长的牧草品种。以蛋白草为例,经过多年的选育和实验,其耐寒、耐盐碱等特性得到了充分展现。这种牧草能在零下四十度的严寒中存活,且在盐级低的环境下也能正常生长,为当地畜牧业在冬季和恶劣环境下的稳定生产提供了有力保障。同时,实验基地的发展也吸引了当地农牧民的参与,为他们提供了稳定的就业机会和技术培训。
从牧草品种的选育来看,实验基地取得了显著成果。陕西省航天育种工程技术研究中心地面选育基地负责人袁中权表示,六个经太空搭载选育的牧草品种,在生长性能和产量上表现卓越。以蛋白草为例,它是通过与美国的鲁梅克斯木本杂交,再经太空搭载进行二次诱变培育而成。这种牧草粗蛋白含量达20%至36%,粗纤维达到26.7%,不仅适合作为牲畜饲料,在幼苗期30到40公分时,还是人类很好的蔬菜,含糖量高达28.3%。其产量稳定,一亩地一年可稳定收割三茬以上,产量可达十五吨。按照目前的市场价格计算,作为青贮饲料,一亩地一年可产生八千元左右的经济效益,为当地农牧民带来了可观的收入增长。
此外,实验基地的发展还带动了相关产业的兴起。袁中权还表示,随着牧草产量的增加,青贮饲料加工、牧草销售等产业逐渐发展壮大,形成了完整的产业链条,进一步促进了当地经济的多元化发展。
实验基地所选育的牧草品种不仅具有较高的经济价值,还具有良好的生态适应性。例如,这些牧草能够在西藏严寒、高海拔的环境中生长,有效防止了土地沙化和水土流失。蛋白草等牧草的根系发达,能够牢牢固定土壤,减少风蚀和水蚀对土地的破坏。同时,牧草的生长还能改善土壤结构,提高土壤肥力,为其他植物的生长创造良好条件,促进了当地生态系统的平衡和稳定。
实验基地还带动了当地农牧业的发展,提高了农牧民的生活水平,增强了他们对国家的认同感和归属感,为边疆地区的稳定奠定了坚实的群众基础。
同时,实验基地的发展还吸引了更多的科技人才和管理人才来到边疆地区,为当地的发展注入了新的活力。这些人才不仅带来了先进的技术和管理经验,还促进了文化的交流与融合,进一步巩固了边疆地区的稳定和发展。
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