[1]刘 涛,等.川西亚高山生态系统三种典型植物凋落物分解动态特征[J].山地学报,2017,(05):663-668.[doi:10.16089/j.cnki.1008-2786.000265]
 LIU Tao,SUN Shouqin*,et al.Dynamics and Differences in the Decomposition of Litters from Three Dominating Plants in Subalpine Ecosystems in Western Sichuan, China[J].Mountain Research,2017,(05):663-668.[doi:10.16089/j.cnki.1008-2786.000265]
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川西亚高山生态系统三种典型植物凋落物分解动态特征()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2017年05期
页码:
663-668
栏目:
出版日期:
2017-09-30

文章信息/Info

Title:
Dynamics and Differences in the Decomposition of Litters from Three Dominating Plants in Subalpine Ecosystems in Western Sichuan, China
文章编号:
1008-2786-(2017)5-663-06
作者:
刘 涛1 2孙守琴1*邱 阳1 3
1.中国科学院水利部成都山地灾害与环境研究所 山地表生过程与生态调控重点实验室,四川 成都610041;
2.中国科学院大学,北京 100049;
3.四川师范大学 生命科学学院,四川 成都610101
Author(s):
LIU Tao1 2 SUN Shouqin1* QIU Yang1 3
1.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610014, China;
2.University of Chinese Academy of Sciences, Beijing 100049, China;
3 College of Life Science, Sichuan Normal University, Chengdu 610101, China
关键词:
凋落物分解 赤茎藓 杜鹃 峨眉冷杉 亚高山生态系统 养分释放
Keywords:
litter decomposition Pleurozium schreberi Rhododendron williamsianum Abies fabri subalpine ecosystem nutrient release
分类号:
S718.5
DOI:
10.16089/j.cnki.1008-2786.000265
文献标志码:
A
摘要:
植物凋落物是高山生态系统重要的养分存储库,凋落物的分解在高山生态系统生物地球化学循环中具有重要作用。本研究采用凋落物分解袋法,分析了贡嘎山亚高山暗针叶林和高山灌丛中赤茎藓(Pleurozium schreberi)、峨眉冷杉(Abies fabri)和杜鹃(Rhododendron williamsianum)三种植物凋落物的分解速率和养分释放动态及差异。结果表明:1)经三年分解后,无论是暗针叶林还是高山灌丛,杜鹃凋落物分解率均最高; 峨眉冷杉凋落物分解率在暗针叶林略高于赤茎藓凋落物,但在高山灌丛和赤茎藓无显著差异; 2)三种植物凋落物的分解动态均能用Olson经典指数模型拟合; 3)分解三年后,三种凋落物碳(C)含量下降了5.66%~14.58%; 氮(N)含量增加了6.46%~42.10%; 峨眉冷杉和杜鹃凋落物磷(P)含量增高,赤茎藓凋落物中P含量降低。
Abstract:
Plant litter is the reservoir for nutrients in alpine and subalpine ecosystems and plays an important role in the geobiochemical cycling of elements.In this study, the dynamics as well as the differences in the decomposition of three types of litter, including Pleurozium schreberi, Abies fabri and Rhododendron williamsianum, were investigated in subalpine ecosystems in Western Sichuan, China, with the litter bag method.The litter of R.williamsianum had the highest decomposition rates when compared with the A.fabri and P.schreberi litter.The litter decomposition rates of A.fabri was 3% higher than that of P.schreberi in the coniferous forest, while it was not differed with that of P.schreberi in the shrubland ecosystem.The decomposition dynamics of the three litter types could be descripted well with Olson classic model.After 3 years of decomposition, the carbon(C)content was decreased by 5.66%~14.58%, the nitrogen(N)content was increased by 6.46%~42.10% relative to their initial values, and the phosphorus(P)content was increased in the A.fabri and R.williamsianum litters but was decreased in the P.schreberi litter.

参考文献/References:

[1] 侯玲玲,孙涛,毛子军,等.小兴安岭不同林龄天然次生白桦林凋落物分解及养分变化 [J].植物研究, 2012, 32(4):492-496 [HOU Lingling, SUN Tao, MAO Zijun, et al.Litter decomposition and nutrient dynamic of Betula platyphlla secondary forest with different stand ages in Xiaoxing'an mountains [J].Bulletin of Botanical Research, 2012, 32(4): 492-496]
[2] 郭剑芬,杨玉盛,陈光水,等.森林凋落物分解研究进展 [J].林业科学,2006,42(4):93-100 [GUO Jianfen, YANG Yusheng, CHEN Guangshui, et al.A review on litter decomposition in forest ecosystem [J].Scientia Silvae Sinicae, 2006, 42(4): 93-100]
[3] 郭忠玲,郑金萍,马元丹,等.长白山各植被带主要树种凋落物分解速率及模型模拟的试验研究 [J].生态学报,2006,26(4):1037-1046 [GUO Zhongling, ZHENG Jinping, MA Yuandan, et al.Researches on litterfall decomposition rates and model simulating of main species in various forest vegetations of Changbai Mountains, China [J].Acta Ecologica Sinica, 2006, 26(4): 1037-1046]
[4] 徐波,朱忠福,李金洋,等.九寨沟国家自然保护区4个典型树种叶片凋落物在林下及高山湖泊中的分解及养分释放特征 [J].植物生态学报,2016,40(9):883-892.[XU Bo, ZHU Zhongfu, LI Jinyang, et al.Leaf decomposition and nutrient release of dominant species in the forest and lake in the Jiuzhaigou National Nature Reserve, China [J].Chinese Journal of Plant Ecology, 2016,40(9): 883-892]
[5] 刘强,彭少麟,毕华,等.热带亚热带森林凋落物交互分解的养分动态 [J].北京林业大学学报,2005,27(1):24-32 [LIU Qiang, PENG Shaolin, BI Hua, et al.Nutrient dynamics of foliar litter in reciprocal decomposition in tropical and subtropical forests [J].Journal of Beijing Forestry University, 2005, 27(1): 24-32]
[6] Berg B.Litter decomposition and organic matter turnover in northern forest soils [J].Forest Ecology & Management, 2000, 133(1-2): 13-22
[7] SULKAVA P, HUHTA V.Effects of hard frost and freeze-thaw cycles on decomposer communities and N mineralisation in boreal forest soil [J].Applied Soil Ecology, 2003, 22(3): 225-239
[8] SUN Shouqin, WU Yanhong, ZHOU Jun, et al.Bryophyte species richness and composition along an altitudinal gradient in Gongga mountain, China [J].Plos One, 2013, 3: 1-10]
[9] TURETSKY, M R.The role of bryophytes in carbon and nitrogen cycling [J].Bryologist, 2003.106: 395-409
[10] TURETSKY M R, MACK M C, HOLLINGSWORTH T N, et al.The role of mosses in ecosystem succession and function in Alaska's boreal forest [J].Canadian Journal of Forest Research, 2010, 40(7): 1237-1264(28)
[11] LIU Wenyao, Fox J E D, XU Z.Leaf litter decomposition of canopy trees, bamboo and moss in a montane moist evergreen broad-leaved forest on Ailao Mountain, Yunnan, south-west China [J].Ecological Research, 2000, 15(4): 435–447
[12] THORMANN M N, BAYLEY S E, CURRAH R S.Comparison of decomposition of belowground and aboveground plant litters in peatlands of boreal Alberta, Canada [J].Canadian Journal of Botany, 2001, 79(79): 9-22(14)
[13] OLSON J S.Energy Storage and the Balance of Producers and Decomposers in Ecological Systems [J].Ecology, 1963, 44(2): 322-331.
[14] 杨林,邓长春,陈亚梅,等.川西高山林线交错带凋落叶分解速率与初始质量的关系 [J].应用生态学报,2015,26(12): 3602-3610 [YANG Ling, DENG Changchun, CHEN Yamei, et al.Relationships between decomposition rate of leaf and initial quality across the alpine timberline ecotone in Western Sichuan, China [J].Chinese Journal of Applied Ecology, 2015, 26(12): 3602-3610]
[15] 赵谷风,蔡延,罗媛媛,等.青冈常绿阔叶林凋落物分解过程中营养元素动态 [J].生态学报,2006,26(10): 3286-3295 [ZHAO Gufeng, CAI Yan, LUO Yuanyuan, et al.Nutrient dynamics in litter decomposition in an evergreen broad leaved forest in East China [J].Acta Ecologica Sinica, 2006, 26(10): 3286-3295]
[16] WANG Xihua, HUANG Jianjun, YAN Enrong.Leaf litter decomposition of commen trees in Tiantong [J].Acta Phytoecologica Sinica, 2004, 28(4): 457-467.
[17] 陈书秀,江明喜.三峡地区香溪河流域不同树种叶片凋落物的分解 [J].生态学报,2006,26(9):2905-2912 [CHEN Shuxiu, JIANG Mingxi.Leaf litter decomposition dynamics of different tree species in Xiangxi River watershed, the Three Gorges region [J].Acta Ecologica Sinica, 2006, 26(9): 2905-2912]
[18] BAKKER M A, CARRE?OROCABAD G, POORTER L.Leaf economics traits predict litter decomposition of tropical plants and differ among land use types[J].Functional Ecology, 2011, 25(3): 473-483.
[19] 林开敏,章志琴,叶发茂,等.杉木人工林下杉木、楠木和木荷叶凋落物分解特征及营养元素含量变化的动态分析 [J].植物资源与环境学报,2010, 19(2):34-39 [LIN Kaimin, ZHANG Zhiqin, YE Famao, et al.Dynamicanalysis of decomposition characteristics and content change of nutrient elements of leaf litter of Cunninghamia lanceolata, Phoebe bournei and Schima superba under C.lanceolata artificial forest [J].Journal of Plant Resources and Environment, 2010, 19(2): 34-39]
[20] 严海元.缙云山马尾松林凋落物的微生物分解及养分释放特征研究 [D].西南大学,2011.[YAN Haiyuan.Microbial decomposition and nutrient release characteristics of pinus massoniana in Jinyun mountain [D].Southwest University, 2011]
[21] YANG Yusheng, CHEN Guangshui, GUO Jianfen, et al.Litter decomposition and nutrient release in a mixed forest of Cunninghamia lanceolata and Tsoongiodendron odorum [J].Acta Phytoecologica Sinica, 2002, 26(3): 275-282

备注/Memo

备注/Memo:
收稿日期(Received date):2017-02-16; 改回日期(Accepted date): 2017-05-17
基金项目(Foundation item):自然科学基金项目(41473078; 41273096)资助[National Natural Science Funds of China(41473078; 41273096)]
作者简介(Biography):刘涛(1991-),男,硕士研究生,河南省人,研究方向: 气候变化生态学[Liu Tao, M.Sc.candidate, male, born in Henan Province, specialized in climate change ecology]E-mail: liutao19910717@163.com
*通讯作者(Corresponding author):孙守琴( 1980-),女,博士,四川省人,副研究员,研究方向: 气候变化生态学、元素生物地球化学循环[Sun Shouqin, Ph.D., female, born in Sichuan Province, associate professor, specialized in climate change ecology and elementary biogeochemical cycling]E-mail: shouqinsun@ imde.ac.cn
更新日期/Last Update: 2017-09-30