黄土丘陵区植被演替中不同草本植物间的化感效应 | |
张超 ; 董淑琦 ; 刘国彬 ; 薛萐 ; 肖烈 ; 马海龙 | |
刊名 | 草 地 学 报
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2012 | |
卷号 | 20期号:05页码:848-854 |
关键词 | 植被演替 铁杆蒿 茵陈蒿 化感作用 |
其他题名 | Allelopathic Effect of Different Herbaceous Plants during Vegetation |
中文摘要 | 为了解植被演替过程中不同植物间的化感作用,选取黄土丘陵区退耕地撂荒演替中不同阶段的优势物种茵陈蒿(Artemisia capillaries)和铁杆蒿(Artemisia sacrorum),分析它们对其他植物种子萌发及幼苗生长的影响。结果表明:不同部位水浸提液由于其化感物质及其释放方式的不同,化感作用存在明显差异。演替前期物种茵陈蒿水浸提液对铁杆蒿和白羊草(Bothriochloa ischaemum)种子萌发有明显抑制作用,而对达乌里胡枝子(Lespedezadavurica)和白羊草幼苗的生长总体表现为促进作用;茵陈蒿根际土和根系水浸提液促进铁杆蒿、白羊草和达乌里胡枝子根的生长,而地上部水浸提液可促进白羊草和胡枝子根的生长。演替后期物种铁杆蒿对茵陈蒿和白羊草种子萌发有较强的抑制作用;其根际土和根系水浸提液可促进茵陈蒿、白羊草和达乌里胡枝子幼苗的生长;地上部水浸提液抑制白羊草和达乌里胡枝子幼苗的生长。茵陈蒿和铁杆蒿对于自身种子萌发以及幼苗的生长具有一定的自毒作用,表现为茵陈蒿根系和地上部水浸提液强烈抑制自身种子萌发;高浓度的铁杆蒿根系和地上部水浸提液对自身的种子萌发以及根、芽的生长 |
英文摘要 | Abstract:To study the allelopathic effect of different plants during vegetation succession,the dominate species(Artemisia capillaries and Artemisia sacrorum)at different stages of succession on abandoned cropland in the hillygully region of Loess Plateau were selected to investigate the effect of A.capillaries and A.sacrorumon the seed germination and seedling growth of other plants.Results showed that the allelopathic effect of different-part extracts of plants differed significantly due to different composition and release.Aqueous extracts of early successional species,A.capillaries,inhibited seed germination of A.sacrorumand Bothriochloa ischaemum while promoting seedling growth of Lespedeza davuricaand B.ischaemum.The rhizosphere soil and root extracts of A.capillaries promoted root growth of A.sacrorum,L.davurica and B.ischaemum.Above-ground- part extracts promoted root growth of L.davuricaand B.ischaemu.Aqueous extracts of later species,A.sacrorum,strongly inhibited seed germination of A.capillaries and B.ischaemum.Aqueous extracts from rhizosphere soil and roots promoted seedling growth of A.capillaries,L.davuricaand B.ischaemum.Above-ground-part extracts inhibited seedling growth of L.davuricaand B.ischaemum.Furthermore,a self-allelopathy effect was found for A.capillaries and A.sacrorum.In conclusion,extract from different parts of A.capillaries and A.sacroruminhibited seed germination of four tested plants.However,the extract inhibited root and seedling growth at high concentration,whereas promoted root and seedling growth at a low concentration. |
语种 | 中文 |
公开日期 | 2014-07-03 |
内容类型 | 期刊论文 |
源URL | [http://ir.iswc.ac.cn/handle/361005/5399] ![]() |
专题 | 水土保持研究所_水保所知识产出(1956-2013) |
推荐引用方式 GB/T 7714 | 张超,董淑琦,刘国彬,等. 黄土丘陵区植被演替中不同草本植物间的化感效应[J]. 草 地 学 报,2012,20(05):848-854. |
APA | 张超,董淑琦,刘国彬,薛萐,肖烈,&马海龙.(2012).黄土丘陵区植被演替中不同草本植物间的化感效应.草 地 学 报,20(05),848-854. |
MLA | 张超,et al."黄土丘陵区植被演替中不同草本植物间的化感效应".草 地 学 报 20.05(2012):848-854. |
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