[1]夏莹莹,江泽鹏,郝丙青,等. 不同经营措施对油茶人工林生物量及其分配格局的影响[J].西北林学院学报,2019,34(6):1-7.[doi:10.3969/j.issn.1001-7461.2019.06.01]
 XIA Ying-ying,JIANG Ze-peng,HAO Bing-qing,et al. Effects of Different Management Measures on Biomass and Allocation of Camellia oleifera Plantation[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2019,34(6):1-7.[doi:10.3969/j.issn.1001-7461.2019.06.01]
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 不同经营措施对油茶人工林生物量及其分配格局的影响()
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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:
1-7
栏目:
出版日期:
2019-11-30

文章信息/Info

Title:
 Effects of Different Management Measures on Biomass and Allocation of Camellia oleifera Plantation
文章编号:
1001-7461(2019)06-0001-07
作者:
 夏莹莹12江泽鹏2郝丙青2刘凯2毛子军1*
 (1.东北林业大学 森林植物生态学教育部重点实验室,黑龙江 哈尔滨 150040; 2.广西壮族自治区林业科学研究院 广西特色经济林培育与利用重点实验室,广西油茶良种与栽培工程技术研究中心,广西 南宁 530022)
Author(s):
 XIA Ying-ying12JIANG Ze-peng2HAO Bing-qing2LIU Kai2MAO Zi-jun1*
 (1.The Key Laboratory of Forest Plant Ecology Ministry of Education,Northeast Forestry University,Harbin 150040,Heilongjiang,China;2.Guangxi Forestry Research Institute /Guangxi Key Laboratory of Special Non-wood Forest Cultivation & Utilization/Improved Variety and Cultivation Engineering Research Center of Oil-tea Camellia in Guangxi,Nanning 530002,Guangxi,China)
关键词:
 油茶人工林生物量分配经营措施
Keywords:
Camellia oleifera plantation biomass allocation management measures
分类号:
S794.402
DOI:
10.3969/j.issn.1001-7461.2019.06.01
文献标志码:
A
摘要:
 应用异速生长模型对广西3种不同经营措施的油茶人工林生物量及其分配特征进行研究。结果表明,中耕除草+施肥、中耕除草+施肥+垦复2种抚育措施的油茶林其叶生物量、枝生物量、根生物量、果生物量和总生物量高于对照林分,嫁接换冠油茶林的叶生物量、枝生物量、根生物量和总生物量低于对照林分,但其果生物量高于对照林分;油茶人工林生态系统的总生物量除采用嫁接换冠措施的油茶人工林生物量(28.86 t·hm-2)低于对照林分(40.60 t·hm-2),中耕除草+施肥(13.76 t·hm-2)、中耕除草+施肥+垦复(20.60 t·hm-2)2种抚育措施的油茶人工林生物量均高于对照林分(12.54、12.91 t·hm-2);在群落生物量分配格局方面,无论对照林分还是采用嫁接换冠、抚育经营措施的油茶人工林均为乔木层所占比例最高。其中,采用中耕除草+施肥、中耕除草+施肥+垦复2种抚育措施的油茶林乔木层生物量所占比例均高于对照林分,嫁接换冠的油茶林其乔木层生物量所占比例低于对照林分,而中耕除草+施肥、中耕除草+施肥+垦复2种抚育措施的油茶林凋落物层生物量和灌草层生物量低于对照林分,嫁接换冠油茶林凋落物层生物量和灌草层生物量所占的比重高于对照林分。乔木层生物量在各器官的分配比例均为枝干>树根>树叶,且枝干和树根占乔木层总生物量的50%以上;在考虑果实和花芽的情况下,花芽生物量所占比重最低,果实生物量所占比重在嫁接换冠油茶林仅较枝生物量和根生物的比重低。表明经营措施可以影响油茶人工林的生物量,通过抚育措施在一定程度上利于油茶人工林乔木层生物量的积累,进而提高油茶人工林生态系统的总生物量,而嫁接换冠措施对于油茶人工林生物量的影响短期表现为生物量的减少;但从经济效益的角度,无论是抚育措施还是嫁接换冠均可提高油茶果实生物量。
Abstract:
 The biomass and distribution characteristics of Camellia oleifera plantations with three management measures in Guangxi were studied by using allometric model.Three measures included cultivating-weeding-fertilizing (pattern 1),cultivating-weeding-fertilizing-reclaiming (pattern 2),and crown replacement by grafting (pattern 3).The results showed that the leaf biomass,branch biomass,root biomass,fruit biomass and total biomass of C.oleifera plantations tended by pattern 1 and pattern 2 were higher than those of the control.By pattern 3,the fruit biomass was higher than that of the control,while others were lower than the control.For the total biomass,the biomass by pattern 1 was 13.76 t·hm-2,higher than the control (12.54 t·hm-2); the biomass of pattern 2 was 20.60 t·hm-2,also higher than the control(12.91 t·hm-2),while the biomass by pattern 3 was 28.86 t·hm-2,lower than the control (40.60 t·hm-2).For the contribution of community biomass,the proportion of tree layer was the highest in all the plantations tended by three patterns.In the plantations tended by pattern 3,the biomass of tree layer was lower than the control.The biomasses of litter layer and shrub layer of the plantations tended by pattern 1 and pattern 2 were lower than the control.The biomasses of the litter layer and shrub layer of the plantations tended by pattern 3 were higher than the control.In tree layer,the distribution ratio of biomass was in the order of branch>root>leaf,in which the proportion of the biomass of branch and root accounted for more than 50% of tree layer biomass.When the fruit and flower bud were taken into account,the flower bud biomass was the lowest,and the fruit biomass was only lower than branch biomass and root biomass in the plantations tended by pattern 3.The results showed that the management measures were beneficial to the accumulation of tree layer biomass,thus increasing the total ecosystem biomass of C.oleifera plantation.The effect of crown replacement by grafting showed the decrease of biomass in the short term.However,all management measures could improve the fruit biomass of C.oleifera.

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备注/Memo

备注/Memo:
 收稿日期:2019-01-11修回日期:2019-03-26
基金项目:广西自然科学基金(2014GXNSFBA118092);广西林业科技项目(桂林科字[2014]第31号、桂林科字[2015]第30号)。
作者简介:夏莹莹,女,博士在读,高级工程师,研究方向:油茶栽培及植物生理生态学。E-mail:1164869353@qq.com
*通信作者:毛子军,女,教授,博士生导师,研究方向:生理生态学。E-mail:zijunm@nefu.edu.cn
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