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Scale-dependent soil macronutrient heterogeneity reveals effects of litterfall in a tropical rainforest
Xia, Shang-Wen; Chen, Jin; Schaefer, Doug; Detto, Matteo
2015
Source PublicationPLANT AND SOIL
ISSN0032-079X
Volume391Issue:42006Pages:51-61
AbstractAims Soil spatial heterogeneity is an important factor partitioning environmental niches and facilitating species coexistence, especially in tropical rainforests. However, fine-scale spatial variability of soil macronutrients and its causative factors are not well understood. We investigate this fine-scale variability and how it relates to environmental factors. Methods We conducted intensive soil sampling (361 samples) in a 1 ha plot in a tropical rainforest in Southwest China to investigate patterns of spatial heterogeneity in soil acidity and macronutrients and explored how the soil properties were influenced by topography and litterfall using a scale-wise wavelet analysis. Results Topography showed great variability at larger scales (>25 m) compared to litterfall properties, which peaked at about 25 m. Soil pH showed variation at large scales and was significantly correlated with topography, whereas soil total nitrogen, ammonium nitrogen, available phosphorus, and potassium showed variation at finer scales and were significantly correlated with litterfall chemical fluxes. A dominant species of canopy tree was non-randomly distributed in high litterfall input sites. Conclusions This study shows that fine-scale spatial variability of soil macronutrients is strongly influenced by litterfall chemical fluxes, highlighting the importance of biotic factors for understanding fine-scale patterns of soil heterogeneity in tropical rainforests.
KeywordLitterfall Properties Plant-soil Feedback Soil Spatial Heterogeneity Topography Wavelet Analysis Xishuangbanna
Language英语
Document Type期刊论文
Identifierhttp://ir.xtbg.org.cn/handle/353005/9184
Collection动植物关系组
Recommended Citation
GB/T 7714
Xia, Shang-Wen,Chen, Jin,Schaefer, Doug,et al. Scale-dependent soil macronutrient heterogeneity reveals effects of litterfall in a tropical rainforest[J]. PLANT AND SOIL,2015,391(42006):51-61.
APA Xia, Shang-Wen,Chen, Jin,Schaefer, Doug,&Detto, Matteo.(2015).Scale-dependent soil macronutrient heterogeneity reveals effects of litterfall in a tropical rainforest.PLANT AND SOIL,391(42006),51-61.
MLA Xia, Shang-Wen,et al."Scale-dependent soil macronutrient heterogeneity reveals effects of litterfall in a tropical rainforest".PLANT AND SOIL 391.42006(2015):51-61.
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