[1]孟庆权,葛露露,林宇,等. 格氏栲天然林及人工林和杉木人工林生活叶-凋落叶-土壤生态化学计量特征[J].西北林学院学报,2019,34(6):8-15.[doi:10.3969/j.issn.1001-7461.2019.06.02]
 MENG Qing-quan,GE Lu-lu,LIN Yu,et al. Ecological Stoichiometric Characteristic of Leaf-Litter-Soil in Natural and Planted Forests of Castanopsis kawakamii and Cunninghamia lanceolata [J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2019,34(6):8-15.[doi:10.3969/j.issn.1001-7461.2019.06.02]
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 格氏栲天然林及人工林和杉木人工林生活叶-凋落叶-土壤生态化学计量特征()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第34卷
期数:
2019年第6期
页码:
8-15
栏目:
出版日期:
2019-11-30

文章信息/Info

Title:
 Ecological Stoichiometric Characteristic of Leaf-Litter-Soil in Natural and Planted Forests of Castanopsis kawakamii and Cunninghamia lanceolata
文章编号:
1001-7461(2019)06-0008-08
作者:
 孟庆权12葛露露12林宇3邱岭军12胡欢甜12何宗明12董强12*
 (1.福建农林大学 林学院,福建 福州 350002;2.国家林业和草原局杉木工程技术研究中心,福建 福州 350002;3.福建省长乐大鹤国有防护林场,福建 福州 350212)
Author(s):
 MENG Qing-quan12GE Lu-lu12LIN Yu3QIU Ling-jun12HU Huan-tian12HE Zong-ming12DONG Qiang12*
 (1.Forestry College,Fujian Agriculture and Forestry University,Fuzhou 350002,Fujian,China; 2.Engineering Reserch Center of Chinese Fir,State Forestry and Grassland Administration,Fuzhou 350002,Fujian,China; 3.Changle Dahe State-owned Protection Forest Farm of Fujian Province,Fuzhou 350212,Fujian,China)
关键词:
 生态化学计量学格氏栲杉木天然林人工林
Keywords:
 ecological stoichiometry Castanopsis kawakamii Cunninghamia lanceolata natural forest planted forest
分类号:
S713
DOI:
10.3969/j.issn.1001-7461.2019.06.02
文献标志码:
A
摘要:
 通过采用野外调查与室内分析相结合的方法,测定格氏栲天然林、格氏栲人工林和杉木人工林生活叶、凋落叶以及土壤(0~40 cm)C、N、P含量,并探讨3种林分生活叶、凋落叶和土壤的化学计量特征。结果表明:1)3种林分C、N、P含量均为生活叶>凋落叶>土壤,3种林分生活叶和凋落叶C、N、P含量差异均不显著,土壤C含量为格氏栲天然林显著高于2种人工林,而N、P含量差异不显著;2)3种林分C∶N、C∶P、N∶P均表现为凋落叶>生活叶>土壤,格氏栲天然林和人工林生活叶N∶P均>16,而杉木人工林生活叶14<N∶P<16,生活叶C∶N为杉木人工林最高,凋落叶C∶N为格氏栲人工林最低,凋落叶、土壤C∶P为杉木人工林最低;3)随土层深度的增加,3种林分土壤C、N、P含量逐渐减少,而C∶N、C∶P、N∶P变化不大;4)3种林分N含量和C∶N在生活叶和凋落叶之间均呈显著负相关(P<0.05)。格氏栲天然林改为人工林后土壤C含量显著降低,格氏栲天然林和人工林生长受N限制,杉木人工林生长受N、P限制,且土壤P的有效性高。研究结果有助于了解不同林分的限制性元素,为该研究区格氏栲和杉木的养分管理提供科学依据。
Abstract:
 The contents of carbon,nitrogen,and phosphorus in in the leaves,leaf litters,and soils (0-40 cm) of natural and planted forests of Castanopsis kawakamii and planted Cunninghamia lanceolata were examined by combining field investigation and indoor measurement to explore the ecological stoichiometric characteristics of leaf-litter-soil interactions in three forests.The results showed that:1) the concentrations of C,N and P in three forests were in the order of leaf>litter>soil,no significant differences in C,N and P contents were found in the leaves and litter of three forests,the soil C content in natural forest of C.kawakamii was significantly higher than those in other two forests,but N and P contents were not significantly different.2) The ratios of C∶N,C∶P and N∶P in three forests were in the order of litter>leaf>soil; the ratios of N∶P in the living leaves of natural and planted C.kawakamii forest were above>16,and between 14 and 16 in planted C.lanceolata forest; the ratios of C∶N of the leaves was the highest in planted C.lanceolata forest,the C∶N of the litter was the lowest in natural C.kawakamii; the C∶P of the litter and soil were the lowest in planted C.lanceolata forest.3) The concentrations of soil C,N and P in three forests decreased gradually with the increase of soil depth,soil C∶N,C∶P and N∶P were in relative steady state.4) The N contents and C∶N in the leaves showed significant positive correlation with the litters in three forests.These results revealed that after natural C.kawakamii forest changed to planted one,soil C content decreased significantly,the growths of natural and planted forests of C.kawakamii were restricted by N,the growth of planted C.lanceolata forest was restricted by N and P,and soil P was highly effective.The findings in the study could contribute to understand the limiting elements of different forests and provide scientific guidance for nutrient management of C.kawakamii and C.lanceolata forests in this study area.

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备注/Memo

备注/Memo:
 收稿日期:2018-10-15修回日期:2018-12-25
基金项目:“十三五”国家重点研发计划项目(2016YFD0600301)。
作者简介:孟庆权,男,硕士在读,研究方向:水土保持和沿海防护林。E-mail:1347225209@qq.com
*通信作者:董强,男,讲师,研究方向:森林培育与水土保持。E-mail:fjdqdq@126.com
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