Li Yan-qing, Sun Ying-jie, Zhang Tong-hui, Zhao Ai-fen, Lian Jie
Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 540014, Guangxi, China.
Ying Yong Sheng Tai Xue Bao. 2011 Jul;22(7):1725-30.
Taking space as a substitute for time, this paper studied the species composition and species diversity of Artemisia frigid community at three succession stages in Horqin Sandy Land. The three succession stages were Periploca sepium-A. frigida community, Periploca sepium-A. frigida+A. halodendron community, and A. frigida-Cleistogenes squarrosa community, all dominated by the plants of Compositae, Chenopodiaceae and Gramineae. The species number and family number in the communities and the species number of Gramineae decreased with succession, while the percentages of Compositae and Gramineae species increased. The species diversity of the communities was in the order of P. sepium-A. frigida+A. halodendron > P. sepium-A. frigida >A. frigida-C. squarrosa. No obvious difference was observed in the species composition among the three communities. In the three communities, A. frigida had the highest coverage, and the coverage increased with succession.
以空间代替时间，研究了科尔沁沙地三个演替阶段冷蒿群落的物种组成和物种多样性。三个演替阶段分别为杠柳-冷蒿群落、杠柳-冷蒿+盐蒿群落和冷蒿-糙隐子草群落，均以菊科、藜科和禾本科植物为主。群落中的物种数、科数以及禾本科的物种数随演替而减少，而菊科和禾本科物种的百分比增加。群落的物种多样性顺序为杠柳-冷蒿+盐蒿＞杠柳-冷蒿＞冷蒿-糙隐子草。三个群落间的物种组成无明显差异。在这三个群落中，冷蒿的盖度最高，且盖度随演替增加。
