松嫩平原朝鲜碱茅无性系种群构件生物量结构及相关模型分析

从构件水平对松嫩平原碱化草甸朝鲜碱茅无性系种群各功能构件的生物量结构，各功能构件生物量与丛径之间的关系，以及各功能构件生物量之间的关系均建立相应的模型进行了定量分析。结果表明，在孕穗和果后营养两个生育期，朝鲜碱茅无性系种群各功能构件生物量及所占总生物量的比率具有相同的规律；各功能构件生物量与丛径之间的定量关系在孕穗期以直线函数模型相关性最大，在果后营养期以幂函数模型相关性最大；各功能构件生物量之间的定量关系除光合构件与支持构件在孕穗期以直线函数模型相关性最大外，其他各构件生物量之间在两个生长期均以幂函数模型相关性最大。

Biomass structure and quantitative relationship models of modules in clonal population of Puccinillia chinampoensis in Songnen plain

In this paper,quantitative analysis was conducted at module level on the biomass structure of modules in clonal population of Puccinillia chinampoensis,the relationship between modules' biomass and turf sizes,and the relationship between one module' biomass and another one's.Based on these,the corresponding models of these relationships were established.The results showed that the regularities on the biomass of all functional modules and their ratio were the same at earing stage and at vegetative stage after fruiting.There existed linear correlation between functional modules and turf sizes at earing stage,and exponential correlation at vegetative stage after fruiting.Among all quantitative relationship models,only the one between photosynthesis modules and supporting modules was linear function at earing stage and exponential correlation at vegetative stage after fruiting.The relationship models between any other two functional models were all exponential correlation at two stages.