吉林西部草原牧草资源的生物多样性研究

Research on Biodiversity of Rorage Resourcesin West Jilin of China

阐述了吉林西部草原野生牧草种质资源的种类及其多样性特征．研究结果表明，该地区为我国温带草地牧草资源种质蕴藏最丰富的地域．同时，还就该地区牧草资源的生活型多样性进行了分析，说明牧草生活型变化反映了该地区的环境压力变异趋势，揭示了牧草资源多样性在放牧利用影响下的变化规律．

The forage species diversity on rangelands in the western Jilin and its characteristics were expounded in this paper. The research results showed that this area is one of the richest regions which have forage germplasm resources in the temperate rangelands in China. Meanwhile, authors also analysed the diversity of life forms for forage resources in thisarea. The changing trend of forage life forms is response to environmental stress variation.And in the last part authors discussed the influences of grazing on forage resources.