摘要
为了解油松林种子雨组成及其在时间和空间上的动态变化,在灵空山油松林4hm2样地内,设置了24个种子收集器,定期收集并记录种子雨的种类及数量。2014年9月到2015年12月的观测数据表明:共收集到隶属于5科5属6种的种子与果实,种实数最多的树种为油松(Pinus tabuliformis)和辽1东栎(Quercus wutaishanica),占总个体数的90%以上。对季节动态分析表明,物种数及数量都在秋季达到最大值。分析坡向、生境类型及坡度与种子雨密度之间的相关性,发现无明显的相关性。
In order to explore the composition of seed rain and its dynamic changes in time and space,24 seed traps were set up in a 4hm2 Pinus tabulaeformis forest in Lingkong Mountain. Regularly collect and record the amount and type of seed rain.From September,2014 to December,2015 observation data shows that： we collected some seeds and fruits,belonging to 5families,5genus,and 6species. Pinus tabuliformis and Quercus wutaishanica,two species with the most seeds and fruits,accounted for 90% of the total. Seasonal dynamics of seed rain were analyzed. We found that： species and quantity are peak in the autumn. Analysis correlation between the seed rain density and slope direction,habitat types and slope,we found no significant correlation.
出处
《环境与可持续发展》
2017年第1期90-93,共4页
Environment and Sustainable Development
基金
国家自然科学基金项目(31400358)
关键词
种子雨
种子扩散
季节动态
地形
seed rain
seed dispersal
topography pattern
seasonal dynamic
