Changes in litter quality induced by nutrient addition alter litter decomposition in an alpine meadow on the Qinghai-Tibet Plateau

	Changes in litter quality induced by nutrient addition alter litter decomposition in an alpine meadow on the Qinghai-Tibet Plateau
	Zhu, Wenyan ; Wang, Jinzhou ; Zhang, Zhenhua ; Ren, Fei ; Chen, Litong ; He, Jin-Sheng
刊名	SCIENTIFIC REPORTS
	2016-10-03
英文摘要	The effects of nitrogen (N) and phosphorus (P) addition on litter decomposition are poorly understood in Tibetan alpine meadows. Leaf litter was collected from plots within a factorial N x P addition experiment and allowed to decompose over 708 days in an unfertilized plot to determine the effects of N and/or P addition on litter decomposition. Results showed that nutrient addition significantly affected initial P and P-related biochemical properties of litter from all four species. However, the responses of litter N and N-related biochemical properties to nutrient addition were quite species-specific. Litter C decomposition and N release were species-specific. However, N and P addition significantly affected litter P release. Ratios of Hemicellulose + Cellulose to N and P were significantly related to litter C decomposition; C:N ratio was a determinant of litter N release; and C:P and (Hemicellulose + Cellulose):P controlled litter P release. Overall, litter C decomposition was controlled by litter quality of different plant species, and strongly affected by P addition. Increasing N availability is likely to affect litter C decomposition more indirectly by shifting plant species composition than directly by improving litter quality, and may accelerate N and P cycles, but shift the ecosystem to P limitation.
内容类型	期刊论文
源URL	[http://ir.nwipb.ac.cn/handle/363003/6424]
专题	西北高原生物研究所_中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Zhu, Wenyan,Wang, Jinzhou,Zhang, Zhenhua,et al. Changes in litter quality induced by nutrient addition alter litter decomposition in an alpine meadow on the Qinghai-Tibet Plateau[J]. SCIENTIFIC REPORTS,2016.
APA	Zhu, Wenyan,Wang, Jinzhou,Zhang, Zhenhua,Ren, Fei,Chen, Litong,&He, Jin-Sheng.(2016).Changes in litter quality induced by nutrient addition alter litter decomposition in an alpine meadow on the Qinghai-Tibet Plateau.SCIENTIFIC REPORTS.
MLA	Zhu, Wenyan,et al."Changes in litter quality induced by nutrient addition alter litter decomposition in an alpine meadow on the Qinghai-Tibet Plateau".SCIENTIFIC REPORTS (2016).