退化羊草草场配套改良技术的研究

Study on the Improvement Technologies of Degradated Grassland of Leymus chinensis

从生态建设、牧业发展和农民致富等方面简述了松嫩草原退化草场改良的必要性,并详细论述松土、施肥、浅耕翻、重耙等改良技术的理论基础、实施方法和经济效益。退化草场改良技术措施在吉林省已应用30多年,累计改良面积达50多万hm2,已取得了显著的生态效益、经济效益和社会效益,还将在今后的草场改良中继续发挥作用。

The necessity of improving the degraded grassland of Songnen Plain was discussed from the aspects of the ecological construction, livestock development and farmer＇s income improving. The theoretical basis, implementing methods and economic benefits of some improvement technologies （scarification, fertilization, shallow plowing, heavy harrow, etc.） were discussed in detail. These improvement measures have been used in in Jilin Province for more than 30 years and the accumulative improvement area reached 5.0~10s hectares. Significant ecological benefits,economic benefits and social benefits have been achieved. And it will play its role in the grassland improvement in future.