摘要
以伊犁河谷的大麻(Cannabis sativa)为研究对象,分析林地、玉米地、麦地、路边等4种样区大麻根、茎、叶生态化学计量特征,了解植物生长机制,研究生境和器官对大麻生态化学计量特征的影响,阐明大麻生长过程中的限制性元素。研究结果表明,在林地、路边大麻各器官的碳含量以及林地大麻C∶P表现为茎>根>叶,玉米地中大麻碳含量为茎>叶>根,在麦地为根>叶>茎,各样区大麻氮含量和磷含量及林地、麦地大麻N∶P表现为叶>茎>根,各样区大麻C∶N及玉米地、麦地、路边大麻C∶P表现为根>茎>叶,在玉米地、路边的大麻N:P为叶>根>茎。不同生境大麻不同器官生态化学计量特征存在一定差异性,路边大麻叶、根的碳含量极显著高于其他样区(P<0.01),茎的碳含量显著高于麦地(P<0.05),且高于其他样区,但不显著(P>0.05);玉米地大麻叶、茎的磷含量和C:N显著高于其他样区(P<0.05),根的磷含量高于其他样区,但林地与玉米地不显著(P>0.05),玉米各器官氮含量、C∶P和N∶P极显著低于其他样区(P<0.01),其中玉米地与麦地大麻茎的氮含量差异性不显著(P>0.05)。各生境大麻叶的N∶P都小于14,说明大麻生长受氮素限制。C∶N、C∶P都与相应的氮含量、磷含量表现为极显著(P<0.01)的负相关关系,氮含量与磷含量表现为极显著(P<0.01)的正相关关系,表明大麻氮、磷元素需求变化一致。通过GLM(General Linear Model)分析,样区对碳含量的影响较大,器官对氮含量和磷含量及C∶N、C∶P、N∶P的影响较大。
Taking Cannabis sativa in Yili River Valley as the research object,this paper analyzed the ecological stoichiometric characteristics of roots,stems and leaves of Cannabis sativa in four habitats,namely forest land,corn land,wheat land and roadside,so as to understand the growth mechanism of Cannabis sativa and the effects of habitat and organs on its ecological stoichiometric characteristics,and further to clarify the restrictive elements in the growth of Cannabis sativa.The results showed that the ranking for carbon content in different organs of Cannabis sativa in forest land and roadside and also C∶P in forest land were stem>root>leaf.The rankings for carbon content were stem>leaf>root in corn field,root>leaf>stem in wheat field.The ranking for nitrogen and phosphorus content in all the four habitats and also C∶P in forest was leaf>stem>root.The ranking for C∶N in all the four habitats and also C:P in corn land,wheat land and roadside was root>stem>leaf.The ranking for N∶P in corn land and roadside was leaf>root>stem.Differences existed in the ecological stoichiometric characteristics of different organs of Cannabis sativa in different habitats.The carbon content of leaves and roots in the roadside was significantly higher(P<0.01)than that in other habitats.The carbon content of stems in the roadside was significantly higher(P<0.05)than that in wheat field,and it was also higher than that in other habitats,but did not reach the significance level(P>0.05).The phosphorus content and C∶N of leaves and stems in corn field were significantly higher than that in other habitats(P<0.05).The phosphorus content of roots was higher than that in other habitats,but it was not significantly higher than that in forest and corn field(P>0.05).The nitrogen content and C∶P and N∶P in corn field were significantly lower than that in other habitats(P<0.01),but no significant difference existed for nitrogen content in stems of Cannabis sativa of corn field and wheat field(P>0.05).The ration of N∶P of Cannabis sativa
作者
刘若璇
崔东
赵阳
刘海军
刘文新
张静
LIU Ruoxuan;CUIDong ;ZHAO Yang;LIU Haijun;LIU Wenxin;ZHANG Jing(Institute of resources and ecology,Yili Normal University,Yining,835000,China;College of Biology and Geography Sciences,Yili Normal University,Yining,835000,China;College of Chemistry and Environmental Sciences,Yili Normal University,Yining,835000,China)
出处
《环境化学》
CAS
CSCD
北大核心
2022年第5期1639-1648,共10页
Environmental Chemistry
基金
伊犁师范大学博士科研启动基金(2019YSBS009)资助.
关键词
大麻
生境
器官
生态化学计量特征
伊犁河谷
Cannabis sativa
habitat
organ
Ecological stoichiometric characteristics
Yili River Valley
