[1]李泽西,刘文耀,陈林,等.哀牢山山顶苔藓矮林林冠腐殖土的养分含量和微生物生物量特征[J].山地学报,2011,(01):26.
　LI Zexi,LIU Wenyao,et al.Physical and Chemical Properties and Microbial Biomass of Canopy Soil in the Montane Cloud Forest in Ailao Mountains[J].Mountain Research,2011,(01):26.
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哀牢山山顶苔藓矮林林冠腐殖土的养分含量和微生物生物量特征()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2011年01期
页码:
26
栏目:
山地学报
出版日期:
2011-01-01

文章信息/Info

Title:
Physical and Chemical Properties and Microbial Biomass of Canopy Soil in the Montane Cloud Forest in Ailao Mountains
作者:
李泽西;刘文耀;陈林;宋亮;
1.中国科学院西双版纳热带植物园，云南 昆明 650223；
2.中国科学院研究生院，北京 100049
Author(s):
LI Zexi; LIU Wenyao; CHEN Lin; SONG Liang
1.Xishuangbanna Tropical Botanical Garden,Chinese Academy of Sciences.Kunming 650223,China;
2.Graduated University of Chinese Academy of Sciences,Beijing 100049,China
关键词:
林冠腐殖土; 理化性质; 林地腐殖土; 微生物生物量; 山地云雾林; 哀牢山
Keywords:
canopy soil; physical and properties; soil under forest floor; microbial biomass; montane cloud forest; Ailao Mts
分类号:
Q948
文献标志码:
A
摘要:
山顶苔藓矮林是中国西南地区热带、亚热带高山顶部一类重要而特殊的湿性常绿阔叶林,附生植物非常发达,其中以分解、半分解枯死残留物为主的林冠腐殖土是山地森林生态系统一个重要的养分库。以云南哀牢山山顶苔藓矮林为对象,对其林冠腐殖土及林下0～10 cm,10～20 cm和20～40 cm地表不同深度土壤的营养元素含量、微生物生物量及呼吸速率等进行了分析和测定。结果表明,该山顶苔藓矮林中林冠腐殖土中有机C、全N、全Ca、全P和全Na的含量,水解N、NH4+-N与NO3—N以及速效K、速效P的含量明显地高于林下地表各层土壤;在土壤微生物生物量C、N和呼吸速率方面,雨季大于旱季,林冠腐殖土明显高于林下地表冠层...
Abstract:
As an important component of the mossy dwarf forest (MDF), canopy soil provides essential substrates and nutrients for the growth of abundant epiphytes. In this study, nutrient status, microbial biomass and soil respiration of the canopy soil and forest floor soils at different depths (0~10 cm, 10~20 cm and 20~40 cm) were analyzed and comprised in MDF in Ailao Mountain, Yunnan. The concentrations of organic C, total N, total Ca, total P, total Na and cation exchange capacity were significantly higher in the canopy soil than forest floor soil. The higher concentration of available K, available P, available N, NH4+-N, and NO3--N were also found in the canopy soil while it decreased gradually with increase of soil depth in the forest floor. The microbial C, N, and respiration rate were greater in the canopy soil than soil on the forest floor. The forest canopy soil has an important ecological function in providing nutrients for growth of epiphytic plants and maintaining pattern of epiphytic species diversity.

相似文献/References:

[1]孙铁军,滕文军,王淑琴,等.紫花苜蓿种植对山地荒沟客土理化性质的影响[J].山地学报,2007,(05):596.

备注/Memo

备注/Memo:
收稿日期(Received date)：2010-08-11；改回日期(Accepted) : 2010-12-15。
基金项目（Foundation item）：国家自然科学
基金项目（30771705，30870437），中国科学院知识创新工程重要方向性项目(KSCX2-YW-Z-1019)。\[This research is supported by the National Natural Science Foundation of China (30771705, 30870437) and the Foundation of Knowledge Innovation Program, CAS (KSCX2-YW-Z1019).\]
作者简介（Biography）：李泽西（1987-），男，四川人，在读硕博连读研究生，主要从事恢复生态与植物生态学的研究。\[Li Zexi (1987-), male, born in Sichuan, Graduate student, major on restoration ecology and plant ecology.\] *
通讯作者（Corresponding author）：刘文耀，研究员，博导，从事植物生态学研究。\[Liu Wenyao, PhD, Professor, major on plant ecology.\] E-mail: liuwy@xtbg.ac.cn
更新日期/Last Update: 1900-01-01