【摘要】：為探究雞公山自然保護區(qū)典型林分生態(tài)系統(tǒng)凋落物量及季節(jié)動態(tài),于2013年4月至2014年3月,采用凋落物收集器法對雞公山4種植被類型凋落物量及組成進行研究。結果表明:年凋落量排名為落葉闊葉林(8.43 t/hm~2)針闊混交林(8.15 t/hm~2)馬尾松純林(7.73 t/hm~2)杉木純林(7.19 t/hm~2);各植被類型均以落葉為主,占50%~71%,表現(xiàn)為落葉落枝落果落花;各植被類型月凋落量均呈雙峰趨勢,分別于7月左右和12月達到峰值;各組分凋落量月動態(tài)明顯不同,落葉峰值在12月,占葉年凋落量的40%左右,落枝主要集中在7~10月,落花主要在4月,占花年凋落量的60%,而落果主要在10月,杉木純林則在翌年2月達到峰值。不同植被類型凋落物量從一定程度上反映出植物的生物學特征和對干旱脅迫的適應性。
[Abstract]:In order to investigate the litter quantity and seasonal dynamics of typical stand ecosystem in Jigongshan Nature Reserve, the litter quantity and composition of four vegetation types in Jigong Mountain were studied by litter collector method from April 2013 to March 2014. The results showed that the annual litter fall was deciduous broad-leaf forest (8.43 t/hm~2) conifer and broad-leaved mixed forest (8.15 t/hm~2) Masson pine pure forest (7.73 t/hm~2) pure Chinese lanceolata forest (7.19 t/hm~2). All vegetation types were mainly deciduous, accounting for 50% 鈮，

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