[1]周世水,沈汉,郑成忠,等.不同年龄长柄双花木枝叶氮磷钾生态化学计量特征[J].浙江林业科技,2022,42(02):27-31.[doi:10.3969/j.issn.1001-3776.2022.02.005]
 ZHOU Shi-shui,SHEN Han,ZHENG Cheng-zhong,et al.Ecological Stoichiometry of N, P and K in Leaves and Branches of Different Aged Disanthus cercidifolius var. longipes[J].Journal of Zhejiang Forestry Science and Technology,2022,42(02):27-31.[doi:10.3969/j.issn.1001-3776.2022.02.005]
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不同年龄长柄双花木枝叶氮磷钾生态化学计量特征()
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《浙江林业科技》[ISSN:1001-3776/CN:33-1112/S]

卷:
42
期数:
2022年02期
页码:
27-31
栏目:
出版日期:
2022-03-25

文章信息/Info

Title:
Ecological Stoichiometry of N, P and K in Leaves and Branches of Different Aged Disanthus cercidifolius var. longipes
文章编号:
1001-3776(2022)02-0027-05
作者:
周世水1沈汉1郑成忠1余雪琴1姜年春1吴家森2
(1. 开化县林场,浙江 开化 324300;2. 浙江农林大学 环境与资源学院,浙江 杭州 311300)
Author(s):
ZHOU Shi-shui1SHEN Han1ZHENG Cheng-zhong1YU Xue-qin1JIANG Nian-chun1WU Jia-sen2
(1. Kaihua Forest Farm of Zhejiang, Kaihua 324300, China; 2. School of Environmental and Resource Sciences, Zhejiang A & F University, Hangzhou 311300, China)
关键词:
长柄双花木叶片枝干生态化学计量年龄
Keywords:
Disanthus cercidifolius var. longipes leaves branches ecological stoichiometry age
分类号:
S718.4
DOI:
10.3969/j.issn.1001-3776.2022.02.005
文献标志码:
A
摘要:
为揭示不同年龄长柄双花木Disanthus cercidifolius var. longipes 叶片和枝干元素间的变化规律,以钱江源国 家森林公园中的长柄双花木居群为研究对象,采样分析了1、3、5、7 年生长柄双花木叶片和枝干中的N、P、K 含量,探讨不同年龄植株叶片和枝干的N、P、K 生态化学计量特征。结果表明:长柄双花木叶片的N、P、K 含 量和K∶P 均显著大于枝干的(P<0.05);随着年龄的增长,长柄双花木叶片和枝干中的N、P、K 含量均表现为 下降的趋势;不同年龄长柄双花木叶片和枝干的N∶P 介于20.62 ~ 27.61,N∶K 介于4.07 ~ 5.17,K∶P 介于4.30 ~ 5.79;随年龄的增长,长柄双花木叶片和枝干的N∶P 和N∶K 均呈现出增大的趋势,K∶P 先下降而后升高。 综上分析,P 元素是影响长柄双花木生长的限制性营养元素,在保护与种植过程中可适当增施P 肥。
Abstract:
In August 2021, leaves and branches were collected from 1-, 3-, 5-, 7-year Disanthus cercidifolius var. longipes in Qianjiangyuan National Forest Park in Kaihua county, Zhejiang province. The content of N, P and K in leaves and branches collected was analyzed. The results showed that the content of N, P, K and K:P was leaves>branches. The N, P and K content in leaves and branches had negative relation with age. Of different aged D. cidifolius var. longipes, the values of N:P were 20.62-27.61, of N:K 4.07-5.17, and of K:P, 4.30-5.79. N:P and N:K in leaves and branches had positive relation with age, while K:P decreased first and then increased.

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备注/Memo

备注/Memo:
收稿日期:2021-10-19;修回日期:2022-02-09
基金项目:浙江省林业局省级林业专项(浙林规﹝2021﹞9 号)
作者简介:周世水,工程师,从事森林经营与管理研究;E-mail:2506261065@qq.com。通信作者:吴家森,博士,正高级工程师,从事森 林土壤与环境学研究;E-mail:jswu@zafu.edu.cn。
更新日期/Last Update: 2022-03-20