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所谓水保牧草,是指防止土壤侵蚀性强,拦蓄径流泥沙效益显著,同时也可供家畜采食的各种草本植物。目前,在我省丘陵沟壑区大面积种植的优良水保草种有:沙打旺、小冠花、紫花苜蓿、无芒雀麦等。这些优良水保草种的共同特征是:①根系发达,生命力强;②保持水土效益显著;③产草量高,再生性强;④叶量丰富,饲用价值高;⑤生长年限长。牧草防止水土流失的作用越来越受到人们的重视。
The so-called water security grass, refers to prevent soil erosion, save sediment runoff significant benefit, but also for livestock feed all kinds of herbs. At present, in the hilly and gully areas of our province large areas of good water and soil planted with: Astragalus adsurgens, small crown flowers, alfalfa, brome grassless. The common features of these excellent water and soil protection grasses are: ① developed root system and strong vitality; ② significant water and soil benefits; ③ high grass production and strong regeneration; ④ rich leaf volume and high forage value; Forage grass to prevent soil erosion more and more attention.