喀斯特植物的生境利用

Utilization Efficiency of Different Microhabitats by Karst Plants

本文以贵州荔波茂兰喀斯特区植物为研究对象,调查植物对各种小生境的利用状况,同时调查各种生境类型的小气候特征,包括大气温度,光照强度和大气相对湿度等,从以上角度探讨喀斯特区植物对各种生境类型的利用率。结果表明,该研究区土面石面生境绝对面积较大,所以土面石面生境是本研究区植物利用的主要生境。若以各生境中单位面积的平均株数而言,即从株密度角度而言,植物对生境的利用率为:石缝>土面>石面>石沟。

Species composition of plants in karst forests in the Maolan region were studied preliminarily by plots and line transect method.The results showed soil surface and stony surface are primary microhabitats in the study area,so plants are mostly grown on soil surface and stony surface.Based on the average number of plants in every area unit,plants make full use of stony crevices,the rest may be deduced by analogy： soil surface stony surfacestony gully.