SMALL-SCALE SPECIES DYNAMICS IN SEMIARID STEPPE VEGETATION IN INNER-MONGOLIA

被引:27
作者
WEI, Z [1 ]
SKARPE, C [1 ]
机构
[1] NORWEGIAN INST NAT RES,N-7005 TRONDHEIM,NORWAY
关键词
ARTEMISIA; FREQUENCY; LIFE FORM; REGENERATION; SPATIAL PATTERN; SPECIES ASSOCIATION; SPECIES MOBILITY; SUCCESSION;
D O I
10.2307/3236357
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Small-scale species dynamics in semi-arid steppe vegetation under grazing and recovering from long-term grazing were followed during five years. Most species successively increased their frequency during the study period, whereas some early successional species decreased in frequency. Perennial Artemisia spp. dominated the vegetation and showed low mobility, whereas small annual or short-lived perennial species had a lower frequency and higher mobility. Significant associations between species were few.
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收藏
页码:583 / 592
页数:10
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