Spatio-temporal variations of carbon and nitrogen in biogenic structures of two fungus-growing termites (M. annandalei and O. yunnanensis) in the Xishuangbanna region

CORC > 西双版纳热带植物园 > 中国科学院西双版纳热带植物园 > 2012年后新成立研究组

	Spatio-temporal variations of carbon and nitrogen in biogenic structures of two fungus-growing termites (M. annandalei and O. yunnanensis) in the Xishuangbanna region
	Chen, Chunfeng; Liu, Wenjie; Wu, Junen; Jiang, Xiaojin
刊名	SOIL BIOLOGY & BIOCHEMISTRY
	2018
卷号	117 期号:x 页码:125-134
关键词	Soil-feeding Termite Secondary Termites Phosphorus Forms Rain-forest Mounds Macrotermes Isoptera Savannas African Nests
ISSN号	0038-0717
英文摘要	Fungus-growing termites are abundant and play an important role in soil nutrient dynamics in the tropics due to their activities and unique effects on soil physical, chemical and biochemical properties. However, the mechanisms of termite mound turnover and the effects of such turnover on temporal and spatial patterns of nutrients in surrounding soils have rarely been studied. Here, we investigated the relationship between the stabilization and redistribution of soil nutrient properties and the chronological development of termite mounds (primary, secondary-occupied and abandoned mounds). The study was conducted to assess the concentrations of nutrients and water content in the biogenic structures produced by two fungus-growing termites (M. annandalei and O. yunnanensis) in different mound stages. Samples were collected along a transect at regular intervals proportional to the size of the biogenic structure. We found the concentration of NO3- in the following sequence: active mound, abandoned mound, and the surrounding soils. The concentrations of organic carbon (C-org) and total N in the active mounds were significantly lower than those in the surrounding topsoils, although a weak difference was observed with subsoils. The concentrations of C-org and total N in the abandoned mounds were significantly higher than those in active motinds, whereas no difference was observed with surrounding soils. The mean concentrations of nutrients were significantly different between fresh parts (sampling locations 1-3) and old parts (locations 4-6) of the secondary-occupied mounds. The nutrients in the fresh parts of the mound approached the values in the primary mound; whereas the nutrients in the old part of the mound approached the values in the abandoned mound. Our results indicate that nutrient concentrations change through the chronological development of termite mounds, which are hot spots of nutrients that subsequently affect ecosystem processes at specific spatial and temporal scales through the stabilization and redistribution of nutrients.
学科主题	Agriculture
URL标识	查看原文
语种	英语
公开日期	2018-03-07
内容类型	期刊论文
源URL	[http://ir.xtbg.org.cn/handle/353005/10793]
专题	西双版纳热带植物园_2012年后新成立研究组西双版纳热带植物园_恢复生态学组
推荐引用方式 GB/T 7714	Chen, Chunfeng,Liu, Wenjie,Wu, Junen,et al. Spatio-temporal variations of carbon and nitrogen in biogenic structures of two fungus-growing termites (M. annandalei and O. yunnanensis) in the Xishuangbanna region[J]. SOIL BIOLOGY & BIOCHEMISTRY,2018,117(x):125-134.
APA	Chen, Chunfeng,Liu, Wenjie,Wu, Junen,&Jiang, Xiaojin.(2018).Spatio-temporal variations of carbon and nitrogen in biogenic structures of two fungus-growing termites (M. annandalei and O. yunnanensis) in the Xishuangbanna region.SOIL BIOLOGY & BIOCHEMISTRY,117(x),125-134.
MLA	Chen, Chunfeng,et al."Spatio-temporal variations of carbon and nitrogen in biogenic structures of two fungus-growing termites (M. annandalei and O. yunnanensis) in the Xishuangbanna region".SOIL BIOLOGY & BIOCHEMISTRY 117.x(2018):125-134.