兽类学报2018，Vol.38Issue(2)：148-157,10.DOI:10.16829/j.slxb.150099
高原鼠兔对垂穗披碱草及豆科植物生长特性的影响
Impact of plateau pikas (Ochotona curzoniae ) on Elymus nutans and legume plant physiological properties in alpine meadow
摘要
Abstract
Activities of plateau pikas (Ochotona curzoniae) affect physiological properties of different plant in alpine meadow communities by foraging. From May to August of 2012, a controled experiment was conducted to determine the effects of disturbance of different by plateau pikas (control, low density, middle density, high density treatment) on physiological properties of legume and Elymus nutans in Guoluo, Qinghai Province. The results showed that (1) There were no significant differences among the treatments in May and June. The aboveground biomass, plant height, tillers number, tillers length, canopy coverage all decreased, but the lengths and the number of Elymus nutans leafs all increased initially, and then decreased with increased disturbance levels by plateau pikas foraging in July and August. (2) The increasing range of plants which were preferred by plateau pikas in control (CK) was significantly higher than that in high density treatments (HD) (P ＜ 0. 05) . (1) Plateau pikas foraging intensity showed a negative correlation during legume late growth stage. The foraging intensity in the middle and low densities is beneficial to the growth of Elymus nutans, but it is not conducive once exceeding it. (2) Higher plateau pikas foraging intensity has obvious inhibitory effects on the increasing range of plants which were preferred by plateau pikas.关键词
高原鼠兔/高寒草甸/取食干扰/植物个体特征Key words
Alpine meadow/Foraging disturbance/Plateau pikas/Plant physiological properties分类
生物科学引用本文复制引用
许华磊,严红宇,邓腾,张瑞,刘伟..高原鼠兔对垂穗披碱草及豆科植物生长特性的影响[J].兽类学报,2018,38(2):148-157,10.基金项目
国家自然科学基金项目(30970498) （30970498）
国家科技支撑计划项目(2012BAC08B03) （2012BAC08B03）
青海省重点实验室发展建设专项(2017-ZJ-Y10) （2017-ZJ-Y10）
