摘要
研究增加科尔沁沙地土壤粗化度对金色狗尾草(Setaria glauca(L.)Beauv.)生长的影响.结果表明:随着土壤粗化程度的提高,金色狗尾草的株高、根长、地上和地下生物量等生长指标均降低,但根冠比却显著提高;不同粗化程度土壤下金色狗尾草的地上、地下生物量有着相同的非线性定量关系,其地上-地下关系符合幂函数异速生长模型.
The research studied the effects of soil coarsening on the growth of Setaria glauca （L.） Beauv. in Horqin Sandy land. The results showed that： with the increase of soil coarse degree, plant height, root length, above-and below - ground biomass of Setaria glauca （ L, ） Beauv. decreased, while the root shoot ratio significantly increased;above-and below-ground biomass had the same nonlinear relationship in different soils, its relationship between above-and below-ground biomass allocations was characterized by allometry model.
出处
《辽宁大学学报（自然科学版）》
CAS
2015年第3期270-273,共4页
Journal of Liaoning University：Natural Sciences Edition
基金
辽宁省教育厅科学研究项目"结缕草坪建植酸性土
盐碱土壤改良技术研究"(2008230)
关键词
金色狗尾草
土壤粗化
生长特征
异速生长
科尔沁沙地
Setaria glauca （ L. ） Beauv.
soil coarsening
growth characteristics
aUometry
Horqin Sandy land
