干旱区生态环境知识资源中心(Arid): Phosphorus fractions and phosphomonoesterase activities in sandy soils under a temperate savanna and a neighboring Mongolian pine plantation

Arid

DOI	10.1007/s11676-006-0006-4
	Phosphorus fractions and phosphomonoesterase activities in sandy soils under a temperate savanna and a neighboring Mongolian pine plantation
	Zhao Qiang; Zeng Dehui
来源期刊	Journal of Forestry Research
ISSN	1007-662X
出版年	2006
卷号	17 期号:1 页码:25-30
英文摘要	To assess the effects of savanna afforestation on soil phosphorus （P） transformations in eastern Horqin Sandy Land, China, P fractions and phosphomonoesterase activities were examined in two soil horizons （0-5 cm and 5-20 cm） under a savanna and an adjacent 30-year-old Mongolian pine （Pinus sylvestris L. vat. mongolica Litv.） plantation on a P-deficient semi arid sandy soil. The results showed that all soil P fractions and phosphomonoestcrase activities decreased with soil depth at both sites except that labile organic P under the plantation was constant with soil depth, In contrast to savanna, soils trader Mongolian pine plantation had lower phosphomonoesterase activities and concentrations of all P fractions （with an exception of Al-P）, lower proportions of organic P and Ca-P in total P, and higher proportions of labile P, Al-P and Fe-P in total P. These results suggested that P transformations mainly occurred in surface soils, and P recycled through litterfall was the most important source of plant available P. Mongolian pine afforestation enhanced the bioavailability of both organic P and Ca-P. simultaneously reduced soil P pools. indicating that protection of forest floor and P fertilization are necessary to maintain the sustainable functioning of Mongolian pine plantations.
英文关键词	Afforestation P fractions P bioavailability Phosphomonoesterase activity Sandy soil
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Forestry
CSCD记录号	CSCD:2659296
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/334930
作者单位	Zhao Qiang, Daqinggou Ecological Station, Institute of Applied Ecology Chinese Academy of Sciences, Shenyang, Liaoning 110016, China.; Zeng Dehui, Daqinggou Ecological Station, Institute of Applied Ecology Chinese Academy of Sciences, Shenyang, Liaoning 110016, China.
推荐引用方式 GB/T 7714	Zhao Qiang,Zeng Dehui. Phosphorus fractions and phosphomonoesterase activities in sandy soils under a temperate savanna and a neighboring Mongolian pine plantation[J],2006,17(1):25-30.
APA	Zhao Qiang,&Zeng Dehui.(2006).Phosphorus fractions and phosphomonoesterase activities in sandy soils under a temperate savanna and a neighboring Mongolian pine plantation.Journal of Forestry Research,17(1),25-30.
MLA	Zhao Qiang,et al."Phosphorus fractions and phosphomonoesterase activities in sandy soils under a temperate savanna and a neighboring Mongolian pine plantation".Journal of Forestry Research 17.1(2006):25-30.