[1]孙飞达,龙瑞军,路承香.鼠类活动对高寒草甸初级生产力和土壤物理性状的影响[J].水土保持研究,2009,16(03):225-229.
　SUN Fei-da,LONG Rui-jun,LU Cheng-xiang.Effects of Rodents Activities on Primary Productivity and Soil Physical Characteristics in Alpine Meadow[J].Research of Soil and Water Conservation,2009,16(03):225-229.
点击复制

鼠类活动对高寒草甸初级生产力和土壤物理性状的影响

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 16 期数: 2009年03期 页码: 225-229 栏目: 出版日期: 2009-06-20
Title:
Effects of Rodents Activities on Primary Productivity and Soil Physical Characteristics in Alpine Meadow
作者:
孙飞达1,2, 龙瑞军2, 路承香1
1. 四川农业大学 草业科学系, 四川 雅安 625014;
2. 兰州大学 青藏高原生态系统管理国际中心, 兰州 730020
Author(s):
SUN Fei-da1,2, LONG Rui-jun2, LU Cheng-xiang1
1. Department of Grassland Science, Sichuan Agricultural University, Ya’an, Sichuan 625014, China;
2. International Centre for Tibetan Plateau Ecosystem Management, Lanzhou University, Lanzhou 730020, China
关键词:
高原鼠兔; 鼠洞密度; 高寒草甸; 初级生产力; 土壤因子
Keywords:
plateau pika(Ochotona curzoniae); burrowing rodents density; alpine meadow; primary productivity; soil physical characteristics
分类号:
S812;Q958.113
摘要:
以高原鼠兔有效洞口作为调查对象，研究了高原鼠兔洞穴密度对三江源区高寒草甸地上、地下和总生物量以及土壤物理性状的影响。结果表明：随着草地鼠洞密度的增大，地上、地下生物量呈“V”字型变化趋势，先剧烈下降后缓慢上升，满足二次函数关系，样地Ⅰ（近似零密度）生物量最大；地下生物量主要分布在0-10 cm土层，随着鼠洞密度的增大有向表层聚集的趋势，生长旺盛期更为明显；8月地上、地下及其总生物量显著高于6月（P＜0.05），各月地下生物量远远大于地上生物量（P＜0.01），地上生物量和地下生物量满足二次函数关系。土壤含水量、容重和pH值与鼠洞密度没有直接的线性关系，但含水量随土层深度增加而降低，容重和pH值随土层深度增加而增加，土壤各因子与不同土层满足线性关系。
Abstract:
This paper mainly focused on the biomass distribution and soil physical characteristics of burrowing plateau pikas(Ochotona curzoniae)densities plots in June and August, which were forage grass initial and bloom period in growing season respectively, in order to discover the effects of plateau pikas activities to plant community biomass and soil environment. The experimental results showed that with the burrows in use increasing, the aboveground, underground and total biomass were described with "V" model, firstly declined sharply and then rose slowly, whcih was described with quadratic function, and the biomass of the first plotⅠ(Approximate Zero Plot, AZP)was the most.The underground biomass distributed at a scale of 0-10 cm, and plant roots were trended together in soil surface layer, especially in August. In August, the aboveground, underground and total biomass were significantly more than in June, and the underground biomass was greater than aboveground at every plots and different periods in growing season. The relationship of underground and aboveground biomass was described with quadratic function.The soil water percentage, soil bulk density and pH had no directly relationship with the increasing burrowing rodents densities,but had the linear relationship with different layers.

参考文献/References:

[1] 钟祥浩.国内外学术界一直关注的问题:青藏高原研究-兼作开设"青藏高原研究"栏目启事[J].山地学报, 2005, 23(3):257-259.
[2] Aho K, Huntly N, Moen J, et al. Pikas(Ochotona princeps:Lagomorpha)as allogenic engineers in an alpine ecosystem[J].Oecologia, 1998, 14:405-409.
[3] 李英年, 王勤学, 古松, 等.高寒植被类型及其植物生产力的检测[J].地理学报, 2004, 59(1):40-48.
[4] 董全民, 赵新全, 马玉寿, 等.牦牛放牧率与小嵩草高寒草甸暖季草地地上、地下生物量相关分析[J].草业科学, 2005, 22(5):65-71.
[5] Martin G L. The role of small ground-foraging mammals in top soil health and biodiversity:Implications to management and restoration[J]. Ecological Management and Restoration, 2003, 4:114-119.
[6] 李林, 李凤霞, 郭安红, 等.近43年来"三江源"地区气候变化趋势及其突变研究[J].自然资源学报, 2006, 21(1):79-85.
[7] 张磊, 缪启龙.青藏高原近 40年来的降水变化特征[J].干旱区地理, 2007, 30(2):241-242.
[8] 王堰, 李雄, 缪启龙.青藏高原近 50年来气温变化特征的研究[J].干旱区地理, 2004, 27(1):41-46.
[9] 王启基, 周兴民, 张堰青.青藏高原金露梅灌丛的结构特征及其生物量[J].西北植物学报, 1991, 11(4):333-340.
[10] 王启基, 王文颖, 邓自发.青海海北地区高山嵩草草甸植物群落生物量动态及能量分配[J].植物生态学报, 1998, 22(3):222-230.
[11] 刘伟, 周华坤, 周立.不同程度退化草地生物量的分布模式[J].中国草地, 2005, 27(2):9-13.
[12] 孙飞达, 龙瑞军, 蒋文兰, 等.青海果洛地区不同鼠洞密度下高寒草甸植物生物量分布特征[J].草地学报, 2008, 6(5):476-476.
[13] 刘季科, 张云占, 辛光武.高原鼠兔数量与危害程度的关系[J].动物学报, 1980, 26(4):378-385.
[14] 马玉寿, 郎百宁, 王启基."黑土型"退化草地研究工作的回顾与展望[J].草业科学, 1999, 15(2):5-9.
[15] 熊顺贵.基础土壤学[M].北京:中国农业大学出版社, 2001.
[16] 钟文勤, 樊乃昌.鼠类在草地生态系统中的作用[J].生物学通报, 2002, 37(7):17-20.
[17] 钟文勤.啮齿动物在草原生态系统中的作用与科学管理[J].生物学通报, 2008, 28(3):886-888.
[18] 孙飞达.高原鼠兔洞穴密度对高寒草甸初级生产力及土壤特性的影响[D].兰州:甘肃农业大学, 2008.
[19] 王启基, 李世雄, 王文颖, 等.江河源区高山嵩草草甸植物土壤碳、氮储量对覆被变化的响应[J].生态学报, 2008, 28(3):886-888.

相似文献/References:

[1]孙飞达,龙瑞军,干友民.高原鼠兔活动对高寒草甸群落植物生物量季节分布的影响[J].水土保持研究,2010,17(02):204.
　SUN Fei-da,LONG Rui-jun,GAN You-min.Effects of Plateau Pikas (Ochotona curzoniae) Activities on Plant Biomass Seasonal Distribution of Alpine Meadow Population[J].Research of Soil and Water Conservation,2010,17(03):204.

备注/Memo

收稿日期:2008-9-10。
基金项目:国家自然基金重点项目（30730069）
作者简介:孙飞达（1978- ），男，甘肃靖远人，讲师，博士，主要从事草地生态学研究。E-mail：sunfd08@163.com
通讯作者:龙瑞军（1964- ），男，吉林农安人，教授，博士生导师，主要从事青藏高原草地生态管理系统研究。E-mail：longrj@lzu.pdu.cn

更新日期/Last Update: 1900-01-01