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本试验对条带式补播改良陡坡草地的生产性能进行了研究。试验根据坡度分为小于25°、25～35°和大于35°的坡地三个处理组。其结果表明,条带式改良草地可以提高产草量,较天然草地三个坡度级分别提高200.39、253.12和203.27%(P<0.01),又可以改善草群品种,豆科牧草分别占总产草量的48.97、72.33和84.14%,且有毒有害植物明显减少。植被盖度由原来的42.5%增加到83.5%,将蒿属植物为建群种的群落变为沙打旺—野艾蒿—万年蓬组成的群落。
In this experiment, the production performance of strip-sowing improved steep grassland was studied. The test was divided into three treatment groups of slope less than 25 °, 25 ° -35 ° and more than 35 ° according to the slope. The results showed that the striped improved grassland could increase the yield of grassland, which was 200.39,253.12 and 203.27% higher than that of the natural grassland respectively (P <0.01), and also could improve the yield of grassland breeds and leguminous forages respectively 48.97, 72.33 and 84.14% of the grass, and significantly reduced toxic and harmful plants. Vegetation coverage from the original 42.5% to 83.5%, Artemisia as a community-based species into the sand Astragalus - Artemisia annua - Eupatorium composition of the community.