Short-term effect of targeted placements of sheep excrement on grassland in inner mongolia on soil and plant parameters

NWIPB OpenIR

	Short-term effect of targeted placements of sheep excrement on grassland in inner mongolia on soil and plant parameters
	Ma, Xiuzhi ; Wang, Shiping ; Jiang, Gaoming ; Haneklaus, Silvia ; Schnug, Ewald ; Nyren, Paul
	2007
发表期刊	COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS ; Ma Xiuzhi, Wang Shiping, Jiang Gaoming, Haneklaus Silvia, Schnug Ewald, Nyren Paul. Short-term effect of targeted placements of sheep excrement on grassland in inner mongolia on soil and plant parameters.COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS,2007,38(11-12):1589-1604
摘要	Grazing animal excrement plays an important role in nutrient cycling and redistribution in grazing ecosystems, due to grazing in large areas and return in small areas. To elucidate the changes to the soil and pasture caused by sheep urine, fresh dung, and compost patches, a short- term field experiment using artificially placed pats was set up in the autumn of 2003 in the Inner Mongolian steppe. Urine application significantly increased soil pH during the first 32 days in soil layers at depths of both 0 - 5 cm and 5 - 15 cm. Rapid hydrolysis of urea gave large amounts of urine- nitrogen ( N) as ammonium ( NH4+) in soil extracts and was followed by apparent nitrification from day 2. Higher inorganic N content in the urine- treated soil was found throughout the experiment compared with the control. No significant effects of sheep excrement on soil microbial carbon ( C) and soil microbial N was found, but microbial activities significantly increased compared with the control after application of sheep excrement. Forty- six percent of dung- N and 27% of compost- N were transferred into vegetation after the experiment. The results from this study suggest that large amounts of nutrients have been lost from the returned excrement patches in the degraded grassland of Inner Mongolia, especially from sheep urine- N.; Grazing animal excrement plays an important role in nutrient cycling and redistribution in grazing ecosystems, due to grazing in large areas and return in small areas. To elucidate the changes to the soil and pasture caused by sheep urine, fresh dung, and compost patches, a short- term field experiment using artificially placed pats was set up in the autumn of 2003 in the Inner Mongolian steppe. Urine application significantly increased soil pH during the first 32 days in soil layers at depths of both 0 - 5 cm and 5 - 15 cm. Rapid hydrolysis of urea gave large amounts of urine- nitrogen ( N) as ammonium ( NH4+) in soil extracts and was followed by apparent nitrification from day 2. Higher inorganic N content in the urine- treated soil was found throughout the experiment compared with the control. No significant effects of sheep excrement on soil microbial carbon ( C) and soil microbial N was found, but microbial activities significantly increased compared with the control after application of sheep excrement. Forty- six percent of dung- N and 27% of compost- N were transferred into vegetation after the experiment. The results from this study suggest that large amounts of nutrients have been lost from the returned excrement patches in the degraded grassland of Inner Mongolia, especially from sheep urine- N.
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/25294
专题	中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Ma, Xiuzhi,Wang, Shiping,Jiang, Gaoming,et al. Short-term effect of targeted placements of sheep excrement on grassland in inner mongolia on soil and plant parameters[J]. COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS, Ma Xiuzhi, Wang Shiping, Jiang Gaoming, Haneklaus Silvia, Schnug Ewald, Nyren Paul. Short-term effect of targeted placements of sheep excrement on grassland in inner mongolia on soil and plant parameters.COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS,2007,38(11-12):1589-1604,2007.
APA	Ma, Xiuzhi,Wang, Shiping,Jiang, Gaoming,Haneklaus, Silvia,Schnug, Ewald,&Nyren, Paul.(2007).Short-term effect of targeted placements of sheep excrement on grassland in inner mongolia on soil and plant parameters.COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS.
MLA	Ma, Xiuzhi,et al."Short-term effect of targeted placements of sheep excrement on grassland in inner mongolia on soil and plant parameters".COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS (2007).