半干旱黄土丘陵区多元化草地建设技术研究

Study on technology of multidimensional grassland establishment in semi-arid Loess Hill Region

针对黄土丘陵区草地退化 ,水土流失严重 ,草地畜牧业生产力低等问题 ,于 1 995～ 2 0 0 2年在半干旱黄土丘陵区的安塞县进行了多元化草地建设试验研究 .引种、驯化生态经济型优良草种 2 0余种 包括品种、类型 ,建设高产、优质单播及混播人工草地和利用耐牧草种改良天然草地 ,为在半干旱黄土丘陵区充分利用水土资源 ,改良大面积天然草地 ,提高其生产力和生态、经济效益 ,及在退耕坡地建设人工草地 。

To aim at the problems on grassland degeneration, serious soil and water loss, and low productivity of grassland and animal husbandry in semi arid loess region, the experimental studies on technology of multidimensional grassland establishment, including introducing fine herbages, constructing high yield and high quality artificial grassland and improving natural grassland, were carried out in Ansai County, Shaanxi Province, in 1995~2002. More than 20 fine species or varieties have been selected and have been used in constructing monoculture and mixed grasslands. The fine species and mixture model for improving natural grassland have been confirmed. These study results will provide material and scientific basis for increasing grassland productivity and eco economic benefit, advancing sustainable development of agriculture and animal husbandry.