Effects of alternate flooding-drought conditions on degenerated Phragmites australis salt marsh in Northeast China

	Effects of alternate flooding-drought conditions on degenerated Phragmites australis salt marsh in Northeast China
	X. Y. Li, B. L. Wen, F. Yang, A. Hartley and X. J. Li
刊名	Restoration Ecology
	2017
卷号	25 期号:5 页码:810-819
通讯作者	李晓宇，Yang, F.
中文摘要	The hydrological regime is the dominant factor associated with the degradation and restoration of inland salt marshes in Northeast China. This study investigates whether alternate flooding-drought conditions could be used to actively restore degraded inland salt marshes with the native plant Phragmites australis. Pot experiments were designed to examine changes in the growth and physiology of P. australis, as well as the saline-alkaline soil characteristics, in response to different hydrological regimes, alternate flooding-drought treatments, and single treatments of moisture, flooding, and drought. After 4 months of treatments, the P. australis population that grew in alternate flooding-drought conditions exhibited substantially more biomass accumulation and less Na+ absorption compared with the single treatments of moisture, flooding, and drought. Photosynthesis physiology served as regulating and adaptive responses to different water regimes, with increased values after the short-term flooding, long-term drought, and flooding-drought cycles. In addition, the saline-alkaline soil properties changed in response to the flooding-drought cycles. The flooding-drought cycles increased organic matter and total nitrogen contents, but decreased pH, electrical conductivity, and saline ion levels. Plant growth and saline-alkaline soil were improved by flooding-drought cycles (not drought-flooding cycles), which suggests that this may be an effective approach for restoration inland salt marshes.
WOS记录号	WOS:000411686900017
内容类型	期刊论文
源URL	[http://ir.iga.ac.cn/handle/131322/7578]
专题	东北地理与农业生态研究所_湿地与全球变化学科组_期刊论文
推荐引用方式 GB/T 7714	X. Y. Li, B. L. Wen, F. Yang, A. Hartley and X. J. Li. Effects of alternate flooding-drought conditions on degenerated Phragmites australis salt marsh in Northeast China[J]. Restoration Ecology,2017,25(5):810-819.
APA	X. Y. Li, B. L. Wen, F. Yang, A. Hartley and X. J. Li.(2017).Effects of alternate flooding-drought conditions on degenerated Phragmites australis salt marsh in Northeast China.Restoration Ecology,25(5),810-819.
MLA	X. Y. Li, B. L. Wen, F. Yang, A. Hartley and X. J. Li."Effects of alternate flooding-drought conditions on degenerated Phragmites australis salt marsh in Northeast China".Restoration Ecology 25.5(2017):810-819.