李慧卿,赵秀莲,张景波,李慧勇,江泽平,张洪江.乌兰布和沙漠东北缘不同灌溉模式绿洲外围半固定白刺群落格局研究[J].林业科学研究,2005,18(2):158-162
乌兰布和沙漠东北缘不同灌溉模式绿洲外围半固定白刺群落格局研究
Contrast of Pattern Characters in Two Different Natural Nitraria tangutorum Communnities in Half Fixed Dunes Outside Oases under Different Irrigating Systems
  
DOI:
中文关键词:  白刺  群落  多规模排序  格局强度  格局一致性  贡献率
英文关键词:Nitraria tangutorum  community  multi_scale ordination  pattern intense  pattern consistence  contribution
基金项目:国家科技攻关计划专题(2002BA517A09-2)
作者单位
李慧卿 中国林业科学研究院林业研究所,国家林业局林木培育重点实验室,北京100091
北京林业大学水土保持学院,北京100083 
赵秀莲 中国林业科学研究院林业研究所,国家林业局林木培育重点实验室,北京100091 
张景波 中国林业科学研究院沙漠林业实验中心,内蒙古磴口015200 
李慧勇 山西水利科学研究所,山西太原030002 
江泽平 中国林业科学研究院林业研究所,国家林业局林木培育重点实验室,北京100091 
张洪江 北京林业大学水土保持学院,北京100083 
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中文摘要:
      以乌兰布和沙漠东北缘黄灌区和井灌区绿洲外围天然半固定白刺群落为研究对象,主要采用VerHoef等1989年修正的多规模排序法,Dale等提出的格局强度、格局一致性指标以及Noy Meir等移动的样方加权平均值,对比分析了两个群落的植被格局特点,包括格局规模、不同格局规模上植物种的组合、植被沿样带的变化,格局强度以及格局的一致性。结果表明:两个半固定白刺群落格局都是白刺单种群控制的灌木格局。相同的植物种在不同的格局规模以及不同的环境条件下,种间联结关系会不一样。与井灌区绿洲外围半固定白刺群落相比,黄灌区绿洲外围的半固定白刺群落平均格局规模数较多,格局规模相对较大,相应的格局强度较低,格局一致性相对较差。
英文摘要:
      Making use of the methods of multi-scale ordination(Ver Hoef & Glenn-Lewin,1989),the pattern intense and pattern consistence index(Dale & Zbigniewicz)and the moving weight average quadrat scores(Noy-Meir & Anderson),the paper analyzed the vegetation pattern characters of the natural Nitraria tangutorum communities in half fixed dunes outside the Huanghe River irrigating oasis and the well water irrigating oasis including pattern scale,species combination at different scale,behavior of the vegetation along the transect,pattern intense and pattern consistence.The results showed that both the two half fixed Nitraria tanguiorum communities were shrub patterns controlled by single species.The association of same species were different at different scale and under different environment condition.The average number of pattern scale was more,pattern scale was larger,the corresponding pattern intense was lower,and the pattern consistence was smaller in Nitraria tangutorum communities of half fixed dunes outside the Huanghe River irrigating oasis,contrasting with that outside the well water irrigating oasis.
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