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Position: Home > Articles > Ecological characteristics of Artemisia halodendron community and population on Horqin sandy land Chinese Journal of Applied Ecology 2006,17 (7) 1169-1173

科尔沁沙地差巴嘎蒿群落及种群生态特征

作  者:
尹航;朴顺姬;王振杰;颜秀灵;张斌才;翟继武;丁勇
单  位:
内蒙古大学生命科学学院
关键词:
差巴嘎蒿;不同类型沙地;群落类型;年龄结构
摘  要:
对科尔沁不同类型沙地上差巴嘎蒿群落内物种重要值、多样性等生态特征进行分析后,将其划分为3个类型:差巴嘎蒿-1年生植物群聚、差巴嘎蒿-禾草类群丛、冷蒿-黄蒿+禾草类群丛,分别分布于流动、半固定和固定沙地上.随着沙地基质固定程度的增加,差巴嘎蒿群落由差巴嘎蒿-1年生植物群聚(先锋群落、盖度<10%、多样性指数0.33)演替到差巴嘎蒿-禾草类群丛(盖度30%~35%、多样性指数0.56)再演替到冷蒿-黄蒿+禾草类群丛(草原群落、盖度40%~45%、多样性指数0.59).在差巴嘎蒿群落演替过程中,差巴嗄蒿种群年龄结构的变化趋势是:在流动沙地上为增长型;在半固定和固定沙地上为衰退型.人工种植5年后差巴嘎蒿种群年龄结构为增长型,人工种植18年后为稳定型.
译  名:
Ecological characteristics of Artemisia halodendron community and population on Horqin sandy land
作  者:
YIN Hang~1,PIAO Shunji~(1.2),WANG Zhenjie~1,YAN Xiuling~1,ZHANG Bincai~1,ZHAI Jiwu~1,DING Yong~1 (~1College of Life Science,Inner Mongolia University,Huhhot 010021,China;~2Inner Mongolia Key Laboratory of Grassland Ecology & National Key Laboratory Incubation Base Co-sponsored by Inner Mongolia and Education Ministry,Huhhot 010021,China)
关键词:
Artemisia halodendron,Different kind sandy land,Community type,Age structure.
摘  要:
Based on the analysis of species important values and Shannon-Wiener index of Artemisia halodendron community on different type sandy lands in Horqin,A.halodendron community was classified into three types,i.e.,A.halodendron-annual herbage,A.halodendron-perennial grass,and A.frigida-A.scoparia + perennial grass,which distributed on shifting sandy land,semi-fixed sandy land,and fixed sandy land,respectively.With the sand fixed,the community succession was ranked from A.halodendron-annual herbage(pioneer stage,coverage < 10%,Shannon-Wiener index 0.33) to A.halodendron-perennial grass(coverage 30%~35%,ShannonWiener index 0.56),and then to A.frigida-A.scoparia + perennial grass(steppe community,coverage 40%~45%,Shannon-Wiener index 0.59).The A.halodendron population on shifting sandy land and that planted 5 years ago showed growing age distribution,that planted 18 years ago showed stable age distribution,and that on semi-fixed and fixed sandy lands showed declining age distribution.The results proved that A.halodendron populations had different ecological effects on A.halodendron community.

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