文献类型：期刊文献

英文题名：SOIL SEED BANK CHARACTERISTICS UNDER AND OUTSIDE CANOPY OF DACRYDIUM LAMB. IN CHINA

作者：Wu, Chunyan[1,2] Chen, Yongfu[1] Hong, Xiaojiang[1,3]

第一作者：吴春燕

通信作者：Chen, YF[1]

机构：[1]Chinese Acad Forestry, Res Inst Forest Resource Informat Tech, Beijing 100091, Peoples R China;[2]Chinese Acad Forestry, State Forestry Adm, Key Lab Tree Breeding & Cultivat, Res Inst Forestry,State Key Lab Tree Genet & Bree, Beijing 100091, Peoples R China;[3]Hainan Bawangling Natl Nat Reserve, Changjiang 572722, Hainan, Peoples R China

年份：2019

卷号：48

期号：3

起止页码：763-769

外文期刊名：BANGLADESH JOURNAL OF BOTANY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000493716500012)】；

基金：The work was financially supported by the Fundamental Research Funds for the Central Non-profit Research Institution of CAF (CAFBB2017ZB004).

语种：英文

外文关键词：Seed density; Canopy; Geostatistics; Spatiotemporal pattern; DBH

摘要：Understanding of how canopy affects the spatiotemporal patterns of soil seed bank is of importance for addressing the problems of forest regeneration originating from seed bank. This study investigated the soil seed bank characters under and outside the canopy of genus Dacrydium Lamb. community in Hainan tropical rain forest. Results show that a total of 194 plant species seeds exist in soil seed bank, the seed density of M-6 (80 cm < DBH6 <= 90 cm) was the highest (5370 seeds.m(-2)) in December. The distribution of seeds in four directions was significantly different. The seed densities under the canopies were greater than those of outside in three seasons. The trees with DBH between 60 and 90 cm have high seed vigor in December. It was concluded that the canopy of trees has important effects on seed accumulation and seed vigor, which is vital for forest management and regeneration, especially for taking protection measures to forest.