干旱区生态环境知识资源中心(Arid): Inorganic Phosphorus Distribution in Soil Aggregates Under Different Cropping Patterns in Northwest China

Arid

DOI	10.1007/s42729-019-00022-1
	Inorganic Phosphorus Distribution in Soil Aggregates Under Different Cropping Patterns in Northwest China
	Cheng, Zhibo 1,2; Chen, Yun 2; Gale, William Jeffrey 1; Zhang, Fenghua 1
通讯作者	Zhang, Fenghua
来源期刊	JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
ISSN	0718-9516
出版年	2019
卷号	19 期号:1 页码:157-165
英文摘要	Accurate information on soil inorganic phosphorus (Pi) is crucial for the sustainable development of agriculture in arid regions. An experiment was conducted to investigate the effect of cropping patterns on Pi concentrations in soil aggregates from the 0-10 cm depth in northwest China. The three cropping patterns were as follows: continuous cotton (CC), corn-wheat rotation (CW), and tree-cotton intercropping (TC). The results showed that more than 89% of the soil mass was in the macroaggregates (> 0.25 mm) in all cropping patterns, indicating a good soil structure in the study area. Total Pi and available P concentrations were significantly higher in the < 0.053 mm aggregate size class than in other classes (p < 0.05). As the dominant component, the Ca-10-P accounted for 48.0-53.8% of total soil Pi. The Ca-10-P concentrations decreased in the order CC > TC > CW. Additionally, the O-P concentrations were enriched in the CC treatment. But, the Ca-g-P, Al-P and Fe-P concentrations were significantly greater in CW and TC than in CC. These results suggested that continuous cotton production leads to plant available Pi (Ca-g-P, Al-P, and Fe-P) convert into unavailable Pi forms (Ca-10-P and O-P). The TC system had the greatest contribution to total P in > 0.25 mm aggregates (p < 0.05), suggesting TC had a greater capacity to supply soil P. TC may be an appropriate fanning practice for maximum availability of P in arid farmland ecosystems.
英文关键词	Aggregate fractions Inorganic phosphorus Cropping patterns Arid zone
类型	Article
语种	英语
国家	Peoples R China ; Australia
收录类别	SCI-E
WOS记录号	WOS:000471078200016
WOS关键词	ORGANIC-MATTER ; FRACTIONATION ; STABILITY ; TILLAGE ; VALIDATION ; MANAGEMENT ; RUNOFF ; CARBON ; FORMS
WOS类目	Plant Sciences ; Environmental Sciences ; Soil Science
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology ; Agriculture
来源机构	Commonwealth Scientific and Industrial Research Organisation
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217320
作者单位	1.Shihezi Univ, Coll Agron, Xinjiang 832003, Peoples R China; 2.CSIRO Land & Water, Canberra, ACT 2601, Australia
推荐引用方式 GB/T 7714	Cheng, Zhibo,Chen, Yun,Gale, William Jeffrey,et al. Inorganic Phosphorus Distribution in Soil Aggregates Under Different Cropping Patterns in Northwest China[J]. Commonwealth Scientific and Industrial Research Organisation,2019,19(1):157-165.
APA	Cheng, Zhibo,Chen, Yun,Gale, William Jeffrey,&Zhang, Fenghua.(2019).Inorganic Phosphorus Distribution in Soil Aggregates Under Different Cropping Patterns in Northwest China.JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION,19(1),157-165.
MLA	Cheng, Zhibo,et al."Inorganic Phosphorus Distribution in Soil Aggregates Under Different Cropping Patterns in Northwest China".JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION 19.1(2019):157-165.