[1]吴朝学,严理*,秦武明,等. 木荷人工林营养元素分布格局[J].西北林学院学报,2017,32(1):54-61.[doi:10.3969/j.issn.1001-7461.2017.01.09]
　WU Chao-xue,YAN Li*,QIN Wu-ming,et al. Distribution Characteristics of Nutrient Elements in Schima superba Plantation[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2017,32(1):54-61.[doi:10.3969/j.issn.1001-7461.2017.01.09]
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 木荷人工林营养元素分布格局()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第32卷
期数:
2017年第1期
页码:
54-61
栏目:
出版日期:
2017-01-31

文章信息/Info

Title:
 Distribution Characteristics of Nutrient Elements in Schima superba Plantation
文章编号:
1001-7461(2017)01-0054-08
作者:
 吴朝学1; 2; 严理1*; 秦武明1; 钟连香1; 卢乃敬1; 尚鹏程1; 张凯1
 （1.广西大学 林学院，广西 南宁 530004；2.广西国营维都林场，广西 来宾 546100）
Author(s):
 WU Chao-xue1; 2; YAN Li1*; QIN Wu-ming1; ZHONG Lian-xiang1; LU Nai-jing1; SHANG Peng-cheng1; ZHANG Kai1
 （1.College of Forestry,Guangxi University,Nanning,Guangxi 530004,China；2.Weidu National Forest Farm,Laibin,Guangxi 546100,China）
关键词:
 ; 木荷; 营养元素; 器官; 径阶; 分配格局
Keywords:
 ; Schima superba;  nutrient element;  organ;  diameter class;  distribution
分类号:
S718.52
DOI:
10.3969/j.issn.1001-7461.2017.01.09
文献标志码:
A
摘要:
 木荷(Schima superba)具有树干端直、材质优良、生物防火、蓄水保肥等一系列优良特性，是很好的经济和生态树种。对南宁地区48年生木荷人工林5种营养元素（N、P、K、Ca、Mg）分配格局及各元素的相关性进行研究。结果表明：1)木荷各器官的营养元素含量差异较大，但遵循相似的变化规律，元素N、K在各器官中含量最高，P元素含量最低，大致为K>N>Ca>Mg>P。2)在不同径阶间5种大量元素的含量差异明显，12~16 cm径阶各元素含量的大小为K>N>Ca>P>Mg，20~32 cm径阶为K>N>Ca>Mg>P。3)5种元素的积累总量为3 655.479 6 kg·hm-2，其中地上部分营养元素积累量为2 712.914 3 kg·hm-2，占总积累量的74.22%。各器官营养元素积累量排列顺序树干＞树皮＞树枝＞树叶＞树根。4)木荷人工林中N、Mg、P元素含量与其他元素之间表现出极强的相关性。
Abstract:
 As an important non-timber and ecological tree species,Schima superba possesses a series of good characteristics,such as straight trunk,excellent timber quality,forest fire resistance,and water and fertilizer reservation.The experiment aimed to study the distribution patterns of major plant nutrients (N,P,K,Ca,and Mg) and correlationships among different elements in S.superba Plantation.The results showed that 1) the contents of the nutrients in different organs were different,however,there existed some similar regularities.The contents of N and K were the highest in different organs,and P was the lowest.The order was K >N>Ca>Mg>P.2) Five major elements presented significant differences among different diameter classes.The content of nutrient elements in 12-16 diameter class was in the order of K >N>Ca>Mg>P,while it was K>N>Ca>Mg>P in 20-32 diameter class.3) The total nutrient accumulation in 48-year-old plantation was 3 655.479 6 kg·hm-2,and the above-ground part nutrient accumulation was 2 712.914 3 kg·hm-2,accounted for 74.22%.Accumulation of nutrients in different organs was in the order of stem > bark> branch> leaf >root.4) The content of N,P,and Mg showed a strong correlation with other elements.

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备注/Memo

备注/Memo:
 收稿日期：2016-05-19修回日期：2016-07-25
基金项目：广西壮族自治区优秀博士出国研修项目；广西研究生教育创新计划项目（YCBZ2015016）;广西大学大学生创新课题（201410593197）。
作者简介：吴朝学，男，工程师，研究方向：森林培育。E-mail:383078163@qq.com
*通信作者：严理，男，博士，研究方向：森林生态。E-mail:yanli19@gxu.edu.cn
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