蘑菇圈形成对高寒草甸群落植被结构及稳定性的作用
Effects of fairy ring formation on community vegetation structures and stability in alpine meadows
查看参考文献28篇
|
文摘
|
蘑菇圈作为青藏高原高寒草甸一种常见生态学现象,也是草地群落植被更新重要场所。通过对青藏高原高寒草甸蘑菇圈区域群落植被特征和经济类群、生活型及演替顶极成分功能群生物量构成、Raunkiaer频度系数、演替度及Spearman秩相关特征进行分析,明晰蘑菇圈不同区域草地植被分异特征,解析蘑菇圈形成对草地植被变化和群落稳定性的作用。结果表明:1)蘑菇圈形成明显改变物种构成,圈上群落优势种为垂穗披碱草和赖草,而圈上和圈外群落皆无绝对优势种;2)蘑菇圈环的形成显著提高了圈上禾草、地下芽植物和降低种的生物量比例,降低其物种多样性;3)蘑菇圈圈上群落处于更高演替阶段,其植物种重要值与经济类群和演替顶极成分的生物量构成变化一致;4)圈上群落主要植物种对正负关联比为0.89,多数种对的种间联结松散,群落稳定性较低;圈内和圈外群落主要植物种对的正负关联比皆>1,多数种对间关联性较强,群落稳定性较强;且蘑菇圈群落中显著关联种对发生在亚优势种与伴生种或伴生种与伴生种之间。研究认为,蘑菇圈形成促进高寒草甸由莎草/杂类草群落向禾草/杂类草群落演替,但降低高寒草甸稳定性。 |
|
其他语种文摘
|
Fairy rings is a common ecological phenomenon in alpine meadows on the Qinghai-Tibet Plateau and is an important site for vegetation regeneration.In order to explore the effects of fairy ring formation on vegetation change and community stability in the Plateau's alpine meadows,we studied the vegetation characteristics of different ring zones,functional group biomass composition by economic category,the life form and succession climax component,the Raunkiaer frequency coefficient,succession degree and Spearman rank correlations within the plant community surrounding the fairy ring zone.The results indicated that:1)fairy ring formation significantly changed species composition.The dominant species on the fairy ring were Elymus nutans and Aneurolepidium dasystachys but there were no clearly dominant species either within and outside the rings;2) fairy ring formation significantly increased the biomass ratios of grasses,geophytes and decreaser on the fairy ring,but reduced its species diversity;3)the community on the fairy ring was at a higher successional stage, and the importance value of plant species accorded with their economic category and succession climax component type's biomass composition;4)on the fairy ring,the positive to negative associations ratio of the main species-pairs was 0.89,the interspecific association of most species-pairs was not significant and the community was in a lower stable state;while within and outside the fairy rings the ratios were both>1,the association between most species-pairs was stronger and the community was more stable.The respective associated speciespairs occurred mainly between sub-dominant species or companion species and the companion species of fairy ring communities.This research shows that fairy ring formation can encourage alpine meadow succession from sedges/forbs communities to grass/forbs communities,but that they also reduce the stability of alpine meadows. |
|
来源
|
草业学报
,2018,27(4):1-9 【核心库】
|
|
DOI
|
10.11686/cyxb2017212
|
|
关键词
|
高寒草甸
;
蘑菇圈
;
物种组成
;
功能群生物量
;
Raunkiaer频度系数
;
演替度
;
Spearman秩相关
|
|
地址
|
兰州大学草地农业科技学院,草业科学国家级实验教学中心, 甘肃, 兰州, 730020
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1004-5759 |
|
学科
|
畜牧、动物医学、狩猎、蚕、蜂 |
|
基金
|
国家重点研发计划课题
;
兰州大学2017年国家级大学生创新创业训练计划项目
|
|
文献收藏号
|
CSCD:6216177
|
参考文献 共
28
共2页
|
|
1.
Zheng D. The system of physico-geographical regions of the Qinghai-Tibet(Xizang)Plateau.
Science in China(Series D),1996,39(4):410-417
|
被引
39
次
|
|
|
|
|
2.
李英年. 5年模拟增温后矮蒿草草甸群落结构及生产量的变化.
草地学报,2004,12(3):236-239
|
被引
67
次
|
|
|
|
|
3.
王文颖. 高寒嵩草草甸退化生态系统植物群落结构特征及物种多样性分析.
草业学报,2001,10(3):8-14
|
被引
68
次
|
|
|
|
|
4.
刘兴元. 青藏高原高寒草地生态系统服务功能的互作机制.
生态学报,2012,32(24):7688-7697
|
被引
39
次
|
|
|
|
|
5.
王文颖. 黄蘑菇的生长对草地植被及土壤的影响.
草业学报,2004,13(4):34-38
|
被引
4
次
|
|
|
|
|
6.
Shantz H L. Fungus fairy rings in Eastern Colorado and their effect on vegetation.
Journal of Agricultural Research,1917,11:191-245
|
被引
3
次
|
|
|
|
|
7.
Fisher R F. Nitrogen and phosphorus mobilization by the fairy ring fungus,Marasmius oreades(Bolt)Fr.
Soil Biology and Biochemistry,1977,9:239-241
|
被引
5
次
|
|
|
|
|
8.
Edwards P J. Effects of the fairy ring fungus Agaricus arvensis on nutrient availability in grassland.
New Phytologist,1988,110:377-381
|
被引
10
次
|
|
|
|
|
9.
赵吉. 草原蘑菇圈的土壤-植物系统研究.
生态学杂志,2003,22(5):43-46
|
被引
7
次
|
|
|
|
|
10.
刁治民. 青海高寒草甸"蘑菇圈"的研究.
青海师范大学学报(自然科学版),2004(4):75-78
|
被引
2
次
|
|
|
|
|
11.
刘振魁. 高寒草甸白蘑菇圈与圈外植物及土壤的比较.
草业科学,1997,14(3):68-70
|
被引
4
次
|
|
|
|
|
12.
赵吉. 草原蘑菇圈土壤生物化学活性的比较研究.
内蒙古大学学报(自然科学版),1999,30(1):96-100
|
被引
6
次
|
|
|
|
|
13.
邵玉琴. 草原蘑菇圈中土壤微生物类群数量的动态分布研究.
中国草地,2000(1):47-50
|
被引
6
次
|
|
|
|
|
14.
王启兰. 黄绿蜜环菌蘑菇圈生长对土壤及植物群落的影响.
生态学杂志,2005,24(3):269-272
|
被引
11
次
|
|
|
|
|
15.
裴海昆. 高寒草甸蘑菇圈土壤有机-无机复合体差热分析研究.
青海大学学报(自然科学版),1999,17(1):15-17
|
被引
1
次
|
|
|
|
|
16.
周先叶. 广东黑石顶自然保护区森林次生演替过程中群落的种间联结性分析.
植物生态学报,2000,24(3):332-339
|
被引
192
次
|
|
|
|
|
17.
孔杨云. 牦牛粪沉积下高寒草甸植物群落种间关联研究.
草业学报,2017,26(3):44-52
|
被引
6
次
|
|
|
|
|
18.
胡楠. 陆地生态系统植物功能群研究进展.
生态学报,2008,28(7):3302-3311
|
被引
27
次
|
|
|
|
|
19.
刘艳书. 三江源地区不同剥蚀退化高寒草甸群落生物量与多样性特征.
草业学报,2014,23(3):1-7
|
被引
20
次
|
|
|
|
|
20.
杨勇. 不同干扰方式对内蒙古典型草原植物种组成和功能群特征的影响.
应用生态学报,2016,27(3):794-802
|
被引
17
次
|
|
|
|
|
了解气象卫星更多信息，请访问