The effects of nitrogen fertilization on N2O emissions from a rubber plantation

CORC > 西双版纳热带植物园 > 中国科学院西双版纳热带植物园 > 全球变化研究组

	The effects of nitrogen fertilization on N2O emissions from a rubber plantation
	Zhou, Wen-Jun ; Ji, Hong-li ; Zhu, Jing ; Zhang, Yi-Ping ; etal
刊名	SCIENTIFIC REPORTS
	2016
卷号	6 期号:x 页码:29230
关键词	GREENHOUSE-GAS EMISSIONS SEASONAL RAIN-FOREST OXIDE EMISSIONS AGRICULTURAL SOILS INORGANIC FERTILIZER MICROBIAL BIOMASS SOUTHWEST CHINA TROPICAL FOREST FLUXES CH4
中文摘要	To gain the effects of N fertilizer applications on N2O emissions and local climate change in fertilized rubber (Hevea brasiliensis) plantations in the tropics, we measured N2O fluxes from fertilized (75 kg N ha(-1) yr(-1)) and unfertilized rubber plantations at Xishuangbanna in southwest China over a 2-year period. The N2O emissions from the fertilized and unfertilized plots were 4.0 and 2.5 kg N ha(-1) yr(-1), respectively, and the N2O emission factor was 1.96%. Soil moisture, soil temperature, and the area weighted mean ammoniacal nitrogen (NH4+-N) content controlled the variations in N2O flux from the fertilized and unfertilized rubber plantations. NH4+-N did not influence temporal changes in N2O emissions from the trench, slope, or terrace plots, but controlled spatial variations in N2O emissions among the treatments. On a unit area basis, the 100-year carbon dioxide equivalence of the fertilized rubber plantation N2O offsets 5.8% and 31.5% of carbon sink of the rubber plantation and local tropical rainforest, respectively. When entire land area in Xishuangbanna is considered, N2O emissions from fertilized rubber plantations offset 17.1% of the tropical rainforest's carbon sink. The results show that if tropical rainforests are converted to fertilized rubber plantations, regional N2O emissions may enhance local climate warming.
公开日期	2016-07-25
内容类型	期刊论文
源URL	[http://ir.xtbg.org.cn/handle/353005/9984]
专题	西双版纳热带植物园_全球变化研究组
推荐引用方式 GB/T 7714	Zhou, Wen-Jun,Ji, Hong-li,Zhu, Jing,et al. The effects of nitrogen fertilization on N2O emissions from a rubber plantation[J]. SCIENTIFIC REPORTS,2016,6(x):29230.
APA	Zhou, Wen-Jun,Ji, Hong-li,Zhu, Jing,Zhang, Yi-Ping,&etal.(2016).The effects of nitrogen fertilization on N2O emissions from a rubber plantation.SCIENTIFIC REPORTS,6(x),29230.
MLA	Zhou, Wen-Jun,et al."The effects of nitrogen fertilization on N2O emissions from a rubber plantation".SCIENTIFIC REPORTS 6.x(2016):29230.