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生态学杂志 ›› 2009, Vol. 28 ›› Issue (11): 2171-2176.

• 研究报告 • 上一篇    下一篇

盐分和母树大小对黑松海防林种子萌发和幼苗早期生长的影响

韩广轩**;毛培利;刘苏静;王光美;张志东;薛钦昭   

  1. 中国科学院烟台海岸带可持续发展研究所,山东烟台 264003
  • 出版日期:2009-11-10 发布日期:2009-11-10

Effects of sea water salinity and mother tree size on the seed germination and seedling early growth of Pinus thunbergii coastal rotection forest.

HAN Guang-xuan;MAO Pei-li;LIU Su-jing;WANG Guang-mei;ZHANG Zhi-dong;XUE Qin-zhao   

  1. Yantai Institute of Coastal Zone Research for Sustainable Development, Chinese Academy of Sciences, Yantai 264003, Shandong, China
  • Online:2009-11-10 Published:2009-11-10

摘要: 研究了盐度(0、0.02、0.04和0.08 mol·L-1)和黑松母树大小对山东半岛北部海防林的主要造林树种黑松种子萌发和幼苗早期生长的影响。结果表明:盐度对黑松种子的发芽率有显著影响,随着NaCl浓度的升高,种子萌发率逐渐下降;盐分抑制黑松幼苗的早期生长,随着盐浓度升高,黑松幼苗的根长、芽长及根干质量均显著降低;母树大小在总体上对种子萌发率没有影响,但显著影响黑松幼苗的根长、芽长和芽干质量;盐度和母树大小的相互作用显著影响黑松幼苗的根长和芽长,而对黑松种子萌发率、幼苗根干质量和芽干质量的影响不显著。

关键词: 热带雨林, 次生林, 生物量, 生物量分配, 产量, 砂仁种植

Abstract: Pinus thunbergii is the main forestation tree species of coastal protection forests in northern Shandong Peninsula of China. Its seed germination and seedling early growth were studied under the conditions of different water salinity (0, 0.02, 0.04, and 0.08 mol·L-1) and mother tree sizes. With increasing sea water salinity, the seed germination rate, root  and plumule length, and the dry weights of root and plumule decreased significantly. Mother tree size had little effects on the seed germination rate, but affected the root and plumule length and the plumule dry weight significantly. The interaction of sea water salinity and mother tree size affected the root and plumule length significantly, but less affected the germination rate and the dry weights of root and plumule.

Key words: Tropical wet seasonal rainforest, Secondary forest, Biomass, Biomass partition, Fruit yield, Amomum villosum cultivation