| 引用本文: | 陈骥,曹军骥,张思毅,樊云龙,王小菲,魏永林.2013.蚂蚁扰动对青海湖北岸高寒草甸草原群落结构影响[J].地球环境学报,(5):1461-1469 |
| CHEN Ji,CAO Jun-ji,ZHANG Si-yi,FAN Yun-long,WANG Xiao-fei,WEI Yong-lin.2013.Ants' hill-building activities on the plant community structure in alpine meadowgrassland in the northern Qinghai Lake, China[J].Journal of Earth Environment,(5):1461-1469 |
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| 蚂蚁扰动对青海湖北岸高寒草甸草原群落结构影响 |
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陈 骥1,2,曹军骥1,3,张思毅4, 樊云龙5,王小菲6,魏永林7
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1. 中国科学院地球环境研究 黄土与第四纪地质国家重点实验室，西安 710075;2. 中国科学院大学，北京 100049;
3. 西安交通大学 全球环境变化研究院, 西安710049;4. 北京师范大学 资源学院，北京 100875;
5. 贵州师范学院 地理与旅游学院，贵阳 550018;6. 中国林业科学研究院 林业研究所，北京 100091;
7. 青海省海北牧业气象试验站，海北810200
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| 摘要: |
| 蚂蚁的筑丘活动是草地生态系统中不可忽视的生物干扰因子。本文针对青海湖北岸高
寒草甸草原，调查了不同大小的蚁丘及其周围对照草地的土壤理化性质和植被状况。结果表明：
蚂蚁筑丘活动显著地降低了土壤容重和土壤湿度，增加土壤温度，但对土壤pH 值的影响较小。
蚂蚁扰动改变了群落组成，增加了大部分禾本科和豆科物种的重要值而降低了杂类草的重要值。
以莎草科的矮嵩草（Kobresia humilis）和禾本科的异针茅（Stipa aliena Keng）、赖草（Leymus
secalinus）、溚草（Koeleria cristata）等为主的群落逐步演替为以禾本科的异针茅和赖草为主的
群落。植物群落的盖度降低但其地上、地下生物量增加；植物群落丰富度指数降低但均匀度指
数增加。 |
| 关键词: 蚁丘 土壤水分 土壤温度 生物量 群落结构 青海湖 |
| DOI：10.7515/JEE201305005 |
| CSTR：32259.14.JEE201305005 |
| 分类号:S812 |
基金项目:国家十一五科技支撑计划项目(2007BAC30B01)，国家十二五科技支撑计划项目(2012BAH31B03)，黄土
与第四纪地质国家重点实验室开放基金资助项目(SKLLQG1303)
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| 英文基金项目: |
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| Ants' hill-building activities on the plant community structure in alpine meadowgrassland in the northern Qinghai Lake, China |
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CHEN Ji1,2, CAO Jun-ji1,3, ZHANG Si-yi4,FAN Yun-long5,
WANG Xiao-fei6, WEI Yong-lin7
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1. Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China;
3. Institute of Global Environment Change, Xi'an Jiaotong University, Xi'an 710049, China;
4. College of Resources Science and Technology, Beijing Normal University, Beijing 100875, China;
5. School of Geography and Tourism, Guizhou Normal College, Guiyang 550018, China;
6. Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China;
7. Haibei Animal Husbandry Meteorological Experiment Station of Qinghai Province, Haibei 810200, China
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| Abstract: |
| As one of the most important biotic disturbance factors in terrestrial ecosystems, ants
mound-building and feeding activities have profound effects on grassland ecosystems which
cannot be ignored. We investigated plant height, coverage, and abundance for each species and
calculated Species richness, Gleason index, Shannon-Wienerindex, Simpsonindex, and Pielou
index for small ant hills (SAH), big ant hills (BAH), and the control plots in the northern shore
of Qinghai Lake, China. We also calculated relative coverage, relative frequency, relative height,relative abundance, relative biomass and important values. Additionally, soil bulk density,
pH values, soil moisture and soil temperature were also recorded. Our results indicated that:
(1) ants' hill-building activities significantly decreased soil bulk density and soil moisture,
profoundly increased soil temperature, while have minor effects on pH values. (2) Ant hills
altered community composition, increased important values of most of grasses and leguminosae,
while decreased important values of weeds. (3) Ant hills decreased community coverage, Species
richness, and Gleason index, increased biomass, Simpson index, and Pielou index, and altered
plant height, plant coverage, and plant biomass. Ants' hill-building activities make the community
dominated by Kobresia humilis, Stipa aliena Keng, Leymus secalinus, Koeleria cristata gradually
successes into the Stipa aliena Keng and Leymus secalinus community. |
| Key words: ant hill soil moisture soil temperature vegetation biomass community structure Qinghai Lake |
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