黑河市不同郁闭度下草本植物生物量的比较

摘要

Herbaceous plant is an important component of forest ecosystem,and it plays a role of landscape function,eco-logical function and other functions. In Heihe randomly selected 60 national forest resources inventory of a kind of develop-ment forest investigation of herbaceous plants,by sampling method,the field collected samples was determined by the dry fresh ratio,then the sample dry fresh ratio,according to the herbaceous plants in the investigation plots total fresh weight calculated canopy conditions of various herbaceous plant total dry weight(biomass). The total dry weight(biomass)is then converted to a ton of herbaceous plants. Found that the biomass and canopy density was negatively related to understo-ry herb.%草本植物是森林生态系统中一个不可缺少的重要组成成分，它对自然界的景观、生态等方面有着不可替代的作用。在黑河地区随机选取60个全国森林资源清查一类样地开展林下草本植物调查，采用样方法，将外业采回的样品测定干鲜比，然后利用样品干鲜比，根据调查样方内草本植物总鲜重，计算各种郁闭度条件下草本植物总干重（生物量）。然后换算成以吨为单位草本植物的量总干重（生物量）。结果发现林下草本植物的生物量与郁闭度成负相关关系。