黄土高原中部草地群落初级生产  

The Primary Production of Grassland Community in Centrial Region of Loess Plateau

作　　者：朱志诚[1,2] 贾东林[1,2] 岳明 

机构地区：[1]西北大学生物学系 [2]咸阳渭城区政府

出　　处：《西北大学学报（自然科学版）》1998年第6期536-539,共4页Journal of Northwest University（Natural Science Edition）

摘　　要：在各类草地群落初级生产基础上，综合对比分析了黄土高原中部草地群落初级生产，主要表现在以下方面：草地群落初级生产及其与水热条件的关系；净生产量的季节变化；同化器官与非同化器官初级生产的数量关系；不同等级牧草的数量关系；地下初级生产变化与建群种物候关系等方面。On the base of primary production of different grassland community, the primary production of grassland community is studied in central region of loess plateau.The principal content is the relationship of the primary production and water heat of grassland commuity in central region of loess plateau, the seasonal variation of the net primary production, the quantitive relationship of primary production of the assimilating and non assimilating organs, The quantitive relationship of different grodes of pasture,the mutual relationship in between variation of underground primary production and the phenophase of costructive species, etc.

关 键 词：黄土高原 草地群落 初级生产 生态系统 

分 类 号：S812[农业科学—草业科学]