Effect of topography and litterfall input on fine-scale patch consistency of soil chemical properties in a tropical rainforest

CORC > 西双版纳热带植物园 > 中国科学院西双版纳热带植物园 > 动植物关系组

	Effect of topography and litterfall input on fine-scale patch consistency of soil chemical properties in a tropical rainforest
	Chen, Jin
刊名	PLANT AND SOIL
	2016
卷号	404 期号:1-2 页码:385-398
关键词	Litterfall properties Seasonal fluctuation Soil spatial heterogeneity Topography Xishuangbanna
中文摘要	Aims Spatial aggregation of soil chemical properties, or nutrient patches, may be generated by topography and plants and can seasonally fluctuate because of climate. Whether nutrient patches maintain consistency (no change in ranking through sequential sampling), through temporal scales, and whether topography and litterfall contribute to the persistence of such ranking is rarely tested. Methods In a 1-ha tropical rainforest plot in Southwest China, we measured soil pH, total N, NH4-N, NO3-N, and available P and K for four times and assessed the patch structure (patterns of patch distribution) and their temporal consistency. We then tested how structure and consistency of chemical soil properties were affected by topography and chemical inputs from litterfall. Results All soil chemical properties showed significant seasonal fluctuations, but patch consistency was higher for soil pH, total N, and available P and K compared to NH4-N or NO3-N. Topography influenced pH patch consistency while annual litterfall input was important for maintaining patch consistency in total N and available P and K. Conclusions Fine-scale consistency of patches in soil pH, total N, and available P and K suggest they may exert stable selection pressures on species for niche differentiation, while consistency of soil NH4-N and NO3-N require further study.
公开日期	2016-07-25
内容类型	期刊论文
源URL	[http://ir.xtbg.org.cn/handle/353005/9979]
专题	西双版纳热带植物园_动植物关系组
通讯作者	Chen, Jin
推荐引用方式 GB/T 7714	Chen, Jin. Effect of topography and litterfall input on fine-scale patch consistency of soil chemical properties in a tropical rainforest[J]. PLANT AND SOIL,2016,404(1-2):385-398.
APA	Chen, Jin.(2016).Effect of topography and litterfall input on fine-scale patch consistency of soil chemical properties in a tropical rainforest.PLANT AND SOIL,404(1-2),385-398.
MLA	Chen, Jin."Effect of topography and litterfall input on fine-scale patch consistency of soil chemical properties in a tropical rainforest".PLANT AND SOIL 404.1-2(2016):385-398.