西南林业大学学报2017，Vol.37Issue(2)：128-134,7.DOI:10.11929/j.issn.2095-1914.2017.02.021
干旱地区不同生境庭荠生物量的分布研究
Study on Biomass Distribution of Alyssum desertorum Under Different Habitats in Arid Area
摘要
Abstract
Based on field investigation and laboratory analysis,biomass characteristic of an ephemeral plant Alyssum desertorum in 3 habitats was compared.The results indicated that height,modules biomass and total biomass of plant within each habitat were significantly different,and coefficients of variation of lots of component were more than 70％.Biomass of root and stem increased in a power function with increasing of total biomass,and showed a similar power allometry growth pattern,and the fastest growth rate was showed on the stem biomass (b=1.153 4)in nature reserve plot.Meanwhile,there was a positive power function or a linear relationship between leaf and fruit biomass with total biomass,the similar pattern was observed in the relationship between fruit biomass and root biomass,stem biomass and leaf biomass.For A.desertorum populations,biomass component and growth situation can be similar or different both within and between habitat,which is controlled by the interaction between environmental and genetic factors.关键词
庭荠/器官/生物量/变异系数/干旱地区/生境/短命植物Key words
Alyssum desertorum/modules/biomass/coefficient of variation, arid area/habitat, ephemeral plant分类
农业科技引用本文复制引用
贾风勤,张娜,纳森巴特..干旱地区不同生境庭荠生物量的分布研究[J].西南林业大学学报,2017,37(2):128-134,7.基金项目
新疆维吾尔自治区自然科学基金项目(2015211C292)资助. （2015211C292）
