[1]郑金兴,熊德成,黄锦学,等.中龄和老龄杉木人工林凋落物量及养分归还[J].福建林学院学报,2013,33(01):18-24.
 ZHENG Jin-xing,XIONG De-cheng,HUANG Jin-xue,et al.Litter production and nutrient return in 2 plantations of young and old Cunninghamia lanceolata[J].Journal of Fujian College of Forestry,2013,33(01):18-24.
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中龄和老龄杉木人工林凋落物量及养分归还()
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《福建林学院学报》[ISSN:2096-0018/CN:35-1327/S]

卷:
33
期数:
2013年01期
页码:
18-24
栏目:
出版日期:
2013-01-15

文章信息/Info

Title:
Litter production and nutrient return in 2 plantations of young and old Cunninghamia lanceolata
文章编号:
1001-389X(2013)01-0018-07
作者:
郑金兴1 熊德成23 黄锦学23 杨智杰23 陈光水23
(1.福建林业职业技术学院,福建 南平 353000;2.湿润亚热带山地生态国家重点实验室培育基地,
福建 福州 350007;3.福建师范大学地理研究所,福建 福州 350007)
Author(s):
ZHENG Jin-xing1 XIONG De-cheng23 HUANG Jin-xue23 YANG Zhi-jie23 CHEN Guang-shui23
(1.Fujian Forestry Vocational Technical College, Nanping, Fujian 353000, China; 2.State Key Laboratory of
Humid Subtropical Mountain Ecology, Fuzhou, Fujian 350007, China; 3.Institute of Geographical
Sciences, Fujian Normal University, Fuzhou, Fujian 350007, China)
关键词:
杉木 凋落物 养分归还 林龄
Keywords:
Cunninghamia lanceolata litterfall nutrient return stand age
分类号:
S718.5
文献标志码:
A
摘要:
为揭示中龄和老龄杉木人工林在凋落物量及养分归还方面的差异,对福建省南平市王台镇溪后村安曹下16年生和88年生杉木人工林进行了2 a的研究。结果表明,16年生和88年生杉木人工林年均凋落物量分别2 879.2、3 070.3 kg·hm-2,凋落物各组分中落叶和落枝所占比重较大, 16年生杉木人工林在杉木部分凋落量大于88年生,其它组分凋落量均小于88年生。2个林分凋落物养分含量各组分大小顺序基本表现为:N>K>P,16年生和88 年生杉木人工林N、P、K年归还量分别为27.693、1.160、3.703  kg·hm-2和33.280、1.907、6.369 kg·hm-2。16 年生和88 年生杉木人工林凋落物量分别在2007年2月、11月,2006年11月以及2007年5月表现出2个明显峰值,2个林分N、P、K归还量动态变化趋势大致与各自凋落物量变化规律一致。
Abstract:
The primary purpose of this study was to determine litter production, seasonal dynamics and nutrient return in 2 forests of young (16 year-old) and old (88 year-old) plantation of Cunninghamia lanceolata located at Wangtai in Nanping, Fujian, during a period of 2006-2008. The results showed as follows: Mean annual total litterfall in 2 years of observations varied from 2 879.2 kg·hm-2 in the 16 year-old C.lanceolata to 3 070.3 kg·hm-2 in the 88 year-old C.lanceolata, The fraction of litterfall in 16 year-old C.lanceolata  was larger than that in 88 year-old C.lanceolata, while the other components were opposite. The ranking of nutrient concentration in each fraction were all showed as  N>K>P in the 2 plantations. Nutrient return of N, P, K content in the 2 plantations were 27.693, 1.160, 3.703 kg·hm-2  and 33.280, 1.907, 6.369 kg·hm-2   respectively. Litterfall of the two C.lanceolata plantations showed two-peak distribution pattern with two peaks in February (or May) and November of each year, meanwhile the dynamics of N, P, K in nutrient return was consistent  with litterfall.

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备注/Memo

备注/Memo:
基金项目:福建省自然科学基金资助项目(D0510018;2008J0124)。
更新日期/Last Update: 2015-03-13