登山步道对木本植物吸收根性状的影响

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中图分类号：S718.5 文献标志码：A 文章编号：1673-5072（2025）05-0473-07

Effects of Hiking Trails on Absorptive Root Traits of Woody Plants

SHI Zong-kun'，ZHANG Jin-dong'，LIU Min²，WANG Zu-hua²

（1.College of Life Science，China West Normal University，Nanchong Sichuan 6370O9，China geof Agricultureand Forestry Engineering and Planning，Tongren University，Tongren Guizhou 55430o，China

Abstract：To elucidate the efects of hiking trails in nature reserves onabsorptive root traits of plants ，two transect lines perpendicular to the hiking trail were set up at two elevations （ 600m and 2000m ）inthe Fanjingshan National Nature Reserve，Guizhou.Meanwhile，by measuring the absorptive root traits and soil properties of woody plants at diffrent distances from the hiking trails，the ffcts of distance and elevation on the traits of absorptive roots were analyzed. Results are as following：（1） Distance has no significant effects on the absorptive root traits，but its interaction with elevation significantly affects the Pcontent and N：P. At the elevation of 2000m ，absorptive root P content increases，but N：P decreases with the increase of the distance from the hiking trails.In contrast，both are not aected by distance at the elevation of 600 m.（2）Elevation significantly affects the N content，N：P，C：N，and specific root length of absorptive root traits.（3）Soil depth，soil temperature，and soil pH can explain the 13% variation in absorptive root traits.Therefore，the hiking trail has a significant impact on absorptive root traits of woody plants in high elevation areas，and the construction of trails should be avoided in high elevationareas of the nature reserves as much as possible.

Keywords： hiking trail; elevation ;absorptive roots ;traits ; effects

吸收根（根系末端的1～2级根）是植物吸收土壤养分和水分的主要器官[1]。（剩余10414字）