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Response of leaf functional traits of woody plants in central Guizhou to degraded karst soil characteristics
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  • Qi Wang,
  • Li Rong,
  • Mengjie Wang,
  • Tianmu Ye,
  • Tingting Li,
  • Wensong Yang,
  • Xuan Li
Qi Wang
Guizhou Normal University
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Li Rong
Guizhou Normal University
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Mengjie Wang
Guizhou Normal University
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Tianmu Ye
Guizhou Normal University
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Tingting Li
Guizhou Normal University
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Wensong Yang
Guizhou Normal University
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Xuan Li
Guizhou Normal University
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Abstract

1.In this study, the dominant woody plants in different degraded background plots in Puding, Guizhou Province were selected as the research objects. Six leaf functional traits(LT, LA, SLA, LDMC, LTD, Chlc) were measured to analyze the effects of soil characteristics on the leaf functional traits of vegetation in the region. 2.We observed that under the degraded environment of karst area, the plant leaves tended to increase, with the most significant change in the returned land; There were significant differences in plant traits under burning,burning felling and returning farmland, with the largest change range of LA, LTD and SLA, which could reach 121.90%, 118.08% and 86.00% respectively in the corresponding sample plots. 3.In the degraded plots, the leaf traits were significantly different among tree, shrub and liana species. In general, the interspecific variation of shrub and liana species was higher than that of tree species, and the community was in the early and middle stage of succession. 4.Soil properties under different degradation background were quite different,and there was a significant correlation between soil properties and vegetation leaf functional properties. Soil depth, soil nutrients and soil humidity were the key soil characteristic factors of plant leaf functional properties. 5.The results showed that the leaf traits of plant in degraded area showed large LA,small LT, low SLA and LTD, high LDMC and low Chlc, which tended to develop drought character combination. This paper reveals the internal differentiation succession law of degraded karst secondary forest in central Guizhou and provides scientific basis for the management and biodiversity protection of karst secondary forest.

Peer review status:UNDER REVIEW

13 Jul 2021Submitted to Ecology and Evolution
17 Jul 2021Assigned to Editor
17 Jul 2021Submission Checks Completed
20 Jul 2021Reviewer(s) Assigned
07 Aug 2021Review(s) Completed, Editorial Evaluation Pending