宽阔水人工杉木林森林凋落物量动态研究  

Dynamics of Litterfall in Kuankuoshui Chinese Fir Plantation

作　　者：钱正敏[1] 何林[1] 窦全丽[1] 吴小想 李继祥 QIAN Zheng-min;HE Lin;DOU Quan-li;WU Xiao-xiang;LI Ji-xiang(College of Biology and Agriculture,Zunyi Normal University,Zunyi 563006;Management Department of Kuankuo-Shui Nature Reserve,Suiyang 563300,China)

机构地区：[1]遵义师范学院生物与农业科技学院,贵州遵义563006 [2]贵州宽阔水国家级自然保护区管理局,贵州绥阳563300

出　　处：《遵义师范学院学报》2020年第4期81-84,共4页Journal of Zunyi Normal University

基　　金：贵州省科学技术基金(黔科合LH字[2015]7031号)、(黔科合J字[2010]2051号)。

摘　　要：针对宽阔水人工杉木成熟林凋落物的凋落量、组成进行研究。结果显示,宽阔水人工杉木成熟林凋落物的年凋落量为3289.93kg/hm2,其中叶的凋落量为3050.46kg/hm2,是总凋落量比例的92.72%,占据了总凋落量的绝大部分,落枝的凋落量为62.64kg/hm2,占总量1.90%,种子所占比例最低,仅为27.32kg/hm2(占0.83%),其他(包括竹叶、粪便等)凋落物的凋落量为149.51kg/hm2,占4.55%。总凋落物量具有明显的季节动态特征,峰值出现在3月;就各组分的凋落量来看,3月份叶的凋落量最大,落枝量在4月出现峰值,6月是种子凋落量的峰值月,其他组分的凋落物量最高值是7月。This research studied the litter production and composition of the mature artificial fir plantation in Kuankuoshui.Results showed that the annual total litter production of the mature artificial fir plantation in Kuankuoshui was 3289.93kg/hm2.Litter production from leaves,branches,seeds and others stuff(including bamboo leaves,excrements,and so forth)were 3050.46kg/hm2,62.64kg/hm2,27.32kg/hm2 and 149.51kg/hm2,with each accounting for 92.72%,1.90%,0.83%and 4.55%of the total litter production.The total litter production showed clear seasonal dynamics,peaking in March.The litter production of leaves,branches,seeds,and the other stuff peaked in March,April,June,and July respectively.

关 键 词：宽阔水 杉木林 凋落物 动态研究 

分 类 号：S718.55[农业科学—林学]