The changes of community components and their horizontal patterns caused by highway construction in the Longitudinal Range-Gorge Region
The changes of community components and their horizontal patterns caused by highway construction in the Longitudinal Range-Gorge Region
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纵岭峡谷区公路建设引起的群落组成及其水平格局的变化
DOI：
10.1007/s11434-007-7024-2
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发表时间：
2007-12
期刊：
影响因子：
--
通讯作者：
Wang Juan
中科院分区：
文献类型：
--
作者：
Liu Jie;Dong ShiKui;Cui BaoShan;Zhao ShuQing;Wang Juan
本文以纵向岭峡地区大宝公路（大理至宝山）和四肖公路（思茅至小孟阳）为例，运用对比分析、差异分析等数学方法，探讨了公路建设引起的社区组成及其水平格局的变化。结果表明：1)在公路建设的干扰下，道路两侧乔灌木植物的优势种和次优势种数量均有所减少，草本植物的优势种和次优势种数量显著增加，并有入侵种出现和分布。②受公路建设的影响，优势种和次优势种在路边的分布由均匀或随机分布向聚集分布转变，聚集度和扩散度明显增大；(3)近道路和近道路的平均覆盖度和平均覆盖高度均高于远离道路的平均覆盖度和平均覆盖高度，但在200 m以内的道路两侧，两种植物的频率变化不明显。(4)路段位置和地形也是影响群落组成的重要因素，计算结果表明，大宝公路对群落组成的影响强度高于四肖公路；对比结果表明：山腰、山顶两种不同地形的影响强度相吻合。
Taking Dabao (from Dali City to Baoshan City) and Sixiao (from Simao City to Xiaomengyang Town) highways in the Longitudinal Range-Gorge Region as examples, the changes of community components and their horizontal patterns caused by highway construction were discussed in this article with some mathematic methods, such as contrast analysis, difference analysis and so on. Results indicate: 1) Under the disturbances of highway construction, the predominant species and sub-predominant species’ quantities of arbor and shrub plants on roadsides would decrease to some extent, that of herbaceous plants would increase a lot, and some invading species would appear and distribute. 2) Influenced by highway construction, the distributions of predominant species and sub-predominant species on roadsides would change from uniform or random pattern to aggregate pattern, and their aggregate degrees and diffusivities would increase obviously. 3) The average coverage degrees and heights ofAgeratina adenophoraandChromolaena odoratanear roads are higher than that far away from roads, but the frequencies of the 2 species have no obvious change on roadsides within 200 m. 4) The positions and landforms of road sections are also important factors influencing community components, the calculated result shows that the influencing intensities on community components caused by Dabao highway are higher than that caused by Sixiao highway, and the compared result of the influencing intensities between the 2 different landforms meet: mountainside > mountaintop.
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影响因子：
3.7
作者：
L. Olander;F. Scatena;W. Silver
通讯作者：
L. Olander;F. Scatena;W. Silver
影响因子：
3.7
作者：
Thais E. Perkins;G. Matlack
通讯作者：
Thais E. Perkins;G. Matlack
影响因子：
7.9
作者：
D. Geneletti
通讯作者：
D. Geneletti
DOI：
--
发表时间：
2006
期刊：
Bulletin of Soil and Water Conservation
影响因子：
--
作者：
Zhu Jian-jun
通讯作者：
Zhu Jian-jun
影响因子：
5.9
作者：
Hansen, MJ;Clevenger, AP
通讯作者：
Clevenger, AP