Research on spring ephemerals in the Baishilazi Nature Reserve,Liaoning
CONG Xin-xin1,2, CAO Wei1, WANG Jin-ju3
1. Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China; 2. Graduate university of Chinese Academy of Sciences, Beijing 100049, China; 3. Shenyang Academy of Landscape Gardening, Shenyang 110016, China
Researches were made on the species composition characteristics of spring ephemerals in the Baishilazi Reserve;besides,the species diversity of spring ephemerals in different forest types were quantitatively studied by using species richness index, Shannon-Wiener diversity index,Pielou evenness index,and Simpson dominance index.The results showed that there were 12 species and;
2. forms of spring ephemerals,belonging to 11 genera and 7 families.Anemone amurensis was the dominant species of the spring ephemerals synusia.The species number of the spring ephemerals in Fraxinus rhynchophylla forest was the highest,followed by Betula costata forest,Korean pine broad-leaved forest,Larix forest;the species numbers of the spring ephemerals in Quercus mongolicus forest, mixed forest,Picea jezoensis and Abies nephrolepis forest were the least.The variation trend of the diversity index generally was ordered as coniferous and broad-leaved mixed forest>deciduous broad-leaved forest>coniferous forest.The variation trend of the evenness index was similar to the diversity index,but opposite to that of dominance index.The species diversity of the spring ephemerals in Korean pine broad-leaved forest was the highest;the species distribution was even;the synusia structure was fairly stable.
丛欣欣1,2, 曹伟1*, 王金菊3. 辽宁白石砬子保护区早春类短命植物研究[J]. , 2011, 30(5): 525-530.
CONG Xin-xin1,2, CAO Wei1, WANG Jin-ju3. Research on spring ephemerals in the Baishilazi Nature Reserve,Liaoning. , 2011, 30(5): 525-530.