干旱区生态环境知识资源中心(Arid): Response of the vertical distribution of soil water and nitrogen in the 5 m soil layer to the conversion of cropland to apple orchards in the Loess Plateau, China

Arid

DOI	10.1016/j.agee.2022.107960
	Response of the vertical distribution of soil water and nitrogen in the 5 m soil layer to the conversion of cropland to apple orchards in the Loess Plateau, China
	Chen, Mingyu; Shao, Ming'an; Wei, Xiaorong; Li, Tongchuan; Shen, Nan; Mi, Meixia; Zhao, Chunlei; Yang, Xi; Gan, Miao; Bai, Xiao; Li, Ang
通讯作者	Shen, N
来源期刊	AGRICULTURE ECOSYSTEMS & ENVIRONMENT
ISSN	0167-8809
EISSN	1873-2305
出版年	2022
卷号	333
英文摘要	In the Loess Plateau, apple (Malus pumila Mill.) orchards converted from cropland are expanding because of the economic value of apples. Understanding the effects of the conversion of cropland to apple orchards on soil water and nitrogen distributions, as well as the potential soil nitrate accumulation, is important and necessary. In this study, apple orchards (Red Fuji) of different growing ages (5, 15, and 28 year old), an abandoned apple orchard, a wheat field, and a maize field in Changwu County of the Loess Plateau were selected to evaluate the soil water content (SWC), nitrate-nitrogen (NO3--N), and other soil parameters within the 0-5 m soil depth. Results showed that SWC of maize field (21.22%) was the highest, followed by that of the 5-years-old apple orchard (20.24%) and wheat field (18.83%). The SWC of the 28-years-old apple orchard (16.09%) was the lowest of the six treatments. Soil NO3--N storage within the 0-5 m soil profile under 5-, 15-, and 28-years-old, abandoned apple orchards, wheat fields, and maize fields reached approximately 613.2, 1929.4, 4277.9, 1282.4, 95.2, 275.9 kg ha 1, respectively. The SWC deficits were found severe, and high nitrate accumulation was found in 15-and 28 years-old apple orchards. Soil water deficits and nitrate accumulation in abandoned apple orchards can persist for ten years. The soil NO3--N content was significantly (P < 0.01) negatively correlated with SWC. After converting croplands to apple orchards, soil water deficit and nitrate accumulation were the main soil environmental problems, which worsened with age. A reasonable amount of fertilizer should be applied in orchards to reduce contaminants in the soil environment. Coupling enhancement of the utilization efficiency of fertilizers and limited soil water resources could be important for establishing the soil environment in arid and semi-arid areas.
英文关键词	Cropland-to-apple orchard Nitrate nitrogen accumulation Nitrogen distribution Soil water deficit
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000790051300001
WOS关键词	NITRATE ACCUMULATION ; GROUNDWATER ; FERTILIZATION ; CONTAMINATION ; SYSTEM ; POLICY ; REGION ; PH
WOS类目	Agriculture, Multidisciplinary ; Ecology ; Environmental Sciences
WOS研究方向	Agriculture ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/391664
推荐引用方式 GB/T 7714	Chen, Mingyu,Shao, Ming'an,Wei, Xiaorong,et al. Response of the vertical distribution of soil water and nitrogen in the 5 m soil layer to the conversion of cropland to apple orchards in the Loess Plateau, China[J],2022,333.
APA	Chen, Mingyu.,Shao, Ming'an.,Wei, Xiaorong.,Li, Tongchuan.,Shen, Nan.,...&Li, Ang.(2022).Response of the vertical distribution of soil water and nitrogen in the 5 m soil layer to the conversion of cropland to apple orchards in the Loess Plateau, China.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,333.
MLA	Chen, Mingyu,et al."Response of the vertical distribution of soil water and nitrogen in the 5 m soil layer to the conversion of cropland to apple orchards in the Loess Plateau, China".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 333(2022).