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祁连山冷龙岭南坡小气候及植被分布特征
引用本文:王建雷,李英年,杜明远,王勤学,唐艳鸿,薛晓娟,张法伟,汪诗平.祁连山冷龙岭南坡小气候及植被分布特征[J].山地学报,2009,27(4).
作者姓名:王建雷  李英年  杜明远  王勤学  唐艳鸿  薛晓娟  张法伟  汪诗平
作者单位:1. 中国科学院西北高原生物研究所,青海,西宁,810001;中国科学院研究生院,北京,100049
2. 中国科学院西北高原生物研究所,青海,西宁,810001
3. 日本农业环境技术研究所,日本,筑波,3058604
4. 日本国立环境研究所,日本,筑波,3050053
基金项目:中国科学院西部行动计划项目,国家科技部支撑项目,中科院西北高原生物研究所百人计划项目 
摘    要:在祁连山冷龙岭南坡3 200 m到4 200 m建立样带,每200 m为梯度设置7个样地,利用微气象自动观测仪观测气温和土壤温度,同时调查样带植物群落、种类组成及地上生物量等.结果表明,气温日变化幅度随海拔的升高而减小,气温随海拔增加降低明显,年平均气温直减率0.51℃/100 m,不同季节直减率有所不同.日平均气温稳定≥0℃、≥3℃和≥5℃的积温直减率几乎相同,为92%℃/100 m,持续天数直减率9 d/100 m.土壤表层温度随海拔变化具有与气温相近的变化趋势.依植被景观及气候特点可将祁连山冷龙岭南坡分为亚高山高寒草甸、亚高山灌丛、高山草甸及高山冰雪稀疏植被气候带.观测植被区地上生物量表明,植被地上年净初级生产力随海拔升高而降低.

关 键 词:气温  土壤温度  海拔梯度  气候带  生产力

The Features of Microclimate and Vegetation Distribution on the Southern Lenglonglin,Qilian Mountains
WANG Janlei,LI Yingnian,DU Mingyuan,WANG Qinxue,TANG Yanhong,XUE xiaojuan,ZHANG Fawei,WANG Shiping.The Features of Microclimate and Vegetation Distribution on the Southern Lenglonglin,Qilian Mountains[J].Journal of Mountain Research,2009,27(4).
Authors:WANG Janlei  LI Yingnian  DU Mingyuan  WANG Qinxue  TANG Yanhong  XUE xiaojuan  ZHANG Fawei  WANG Shiping
Institution:1.Northwest Plateau Institution of Biology;Chinese Academy of Sciences;Xining 810001;China;2.Graduate University of the Chinese Academy of Sciences;Beijing 100049;3.National Institute for Agro-Environmental Science;Tsuku-ba 3058604;Japan;4.National Institute of Agro-environmental Sciences;Japan
Abstract:Based on microclimatic auto observation systems,the air and soil temperature were measured at 30 minutes intervals in seven equidistant plots from 3 200 meters to 4 200 meters on the southern slope of Lenglongling,Qilian Mountains.Meanwhile,the plant community of the plot was investigated,such as species composition,average height and aboveground biomass.The results showed that the fluctuation of diurnal air temperature and the temperature decreased obviously,along with the ascension of altitude.The decline...
Keywords:air temperature  soil temperature  elevation  climatic zone  productivity  
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