| 植物群落对景观温度特征指示作用的研究 |
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| 引用本文： | 江源.植物群落对景观温度特征指示作用的研究[J].植物生态学报,2000,24(5):523-527. |
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| 作者姓名： | 江源 |
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| 作者单位： | 北京师范大学资源科学研究所,北京师范大学环境变与自然灾 |
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| 基金项目： | 教育部留学回国人员科研启动基金，国家自然科学基金重大项目!（39899374），德意志学术交流中心!（DAAD）共同资助 |
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| 摘 要： | 以德国Kraichgau地区为研究样区，根据转化糖方法获得的野外实测温度数据，就植物群落温度平均指示值在景观尺度上对生境温度的指示效果进行了深入探讨。结果表明：1)群落温度平均指示值与测定的效应温度之间具明显线性正相关；2)群落温度平均指示值能够反映不同坡向条件造成的生境温度差异，但效果随计算方法不同而异。3种不同方法的比较结果说明，直接根据样方资料获得的计算结果，对坡向条件造成的生境温度差异反映明显；3)以样带数据为基础的研究结果对温度随坡向和坡位变化的反映均不够明显。样带没有达到足够的宽度以及样带中局部地段上的种类组成受人为影响严重可能是未达到预期对比效果的主要原因。
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| 关 键 词： | 植物群落 生境 温度 指示值 |
THE INDICATION VALUE OF PLANT COMMUNITIES IN RELATION TO TEMPERATURE IN HILLY LANDSCAPES |
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| JIANG Yuan.THE INDICATION VALUE OF PLANT COMMUNITIES IN RELATION TO TEMPERATURE IN HILLY LANDSCAPES[J].Acta Phytoecologica Sinica,2000,24(5):523-527. |
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| Authors: | JIANG Yuan |
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| Abstract: | Effective temperature, measured by the sugar-inversion method at 113 measurement points from June to September, 1993, was studied in relation to the indication value of plant communities to habitat temperature in the hilly landscape of the Kraichgau area in Germany. The results show: 1) the average indication value of the plant community to temperature is positively correlated with temperature as measured by the sugar-inversion method; 2) the average indication value of plant community is able to distinguish temperature differences between habitats on northern and southern exposure slopes, but its sharpness varies among three different methods of calculation ; further comparison among these three methods reveals that the average indication value calculated in light of the quadrat data from each community is most effective for indicating the temperature difference between different exposures ; 3) the average indication value calculated in light of the transect survey is not effective enough to indicate the temperature differences both between different exposures and among different slope positions. The reason for this ineffectiveness is probably either the narrowness of the transect or the heavy human impact on the vegetation along this transect. |
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| Keywords: | Plant community Habitat Temperature Indication value |
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