<正>根据动物的营养需求和环境所能提供的可食生物量，对黑龙江省黑河市胜山林场1999和2000年冬季驼鹿（Alcesalces）营养容纳量进行了估计。环境所提供的可食生物量的估计基于驼鹿的冬季生境所提供的主要食物的可获得量，根据野外调查。确定在该区驼鹿冬季的主要食物为：杨、柳、桦和榛。笔者采用较合理的代谢能指标。通过圈养驼鹿消化代谢实验，并结合野外调查，最后得出驼鹿各主要营养物质的需求量分别为：干物质（DM），4.73kg/d；代谢能（ME），75558kJ/d；氮（N），37.67g/d（以驼鹿290kg的平均体重为标准）。黑河林区1999和2000年的营养容纳量分别为76只（0.0054只/hm2）和109只（0.0078只/hm2）。

On the basis of obtained data and field survey of cultivar classification of pomegranate, the ways of cultivar formation and main appearance characteristics were analyzed in this. paper. In the light of International Horticulture Nomination Code and the regulation of cultivars evaluation, the cultivar classification was discussed. The results show that cultivar formation of pomegranate belongs to the same type of species. The cultivar group, cultivar systems were built up. According to the flower petal, cultivars were divided into 4 cultivar groups. The flower petal, flower color, fecundity, fruit color, fruit size and quantity were taken as the main basis of classification, and the characters of the seed soft or hard, shape of calyx tube, color of new leaf, caulis stab etc. can be taken as a second basis.