干旱区生态环境知识资源中心(Arid): Nitrogen source and fate of typical orchard with gentle slope in semi-arid areas

Arid

DOI	10.25165/j.ijabe.20231606.7701
	Nitrogen source and fate of typical orchard with gentle slope in semi-arid areas
	An, Miaoying; Xie, Ying; Han, Yuguo; Zhou, Jinxing; Guo, Hulin; Qu, Zhixu
通讯作者	Han, YG
来源期刊	INTERNATIONAL JOURNAL OF AGRICULTURAL AND BIOLOGICAL ENGINEERING
ISSN	1934-6344
EISSN	1934-6352
出版年	2023
卷号	16 期号:6 页码:167-175
英文摘要	Excessive nitrogen (N) exports caused by human activities are one of the main reasons for the numerous environmental problems in agricultural production. Orchards, as an essential part of agricultural production, play a crucial role in rural economic development and ecological environment construction. Understanding the migration pathways of N in orchards is significant for the scientific management of orchards and the reduction of environmental pollution. In this research, the source and fate of N in a typical orchard in Beijing were quantitatively analyzed. N management strategies were proposed in combination with agricultural production habits. The total N input into the orchard was 487.19 kg/hm2 center dot a, of which 85.44%, 10.99%, 3.30% and 0.27% of N input were from fertilizer application, atmospheric deposition, biological N fixation and pesticide, respectively. A large amount of N fertilizer application was the primary source of N input in the orchard. For the N fate, the N surplus in the soil could reach up to 68.40% of total N inputs, and only 20.16% were absorbed and utilized by plants. The amount of N losses through ammonia volatilization, runoff and sediment, nitrification and denitrification accounted for 10.68%, 0.39% and 0.37%, respectively. N input in the orchard mainly remained in soil, while N loss was mainly through ammonia volatilization. There were 176.72, 99.00, and 57.52 kg/hm2 center dot a N surplus in 0-40 cm, 40-80 cm, and over 80 cm soil layers, respectively. To deal with the N accumulation on the soil surface and the migration of N from the soil surface to the deep layer of orchards, reducing N fertilizer application, substituting circular furrow for the whole orchard fertilization, adjusting irrigation schedule by reducing the amount of single irrigation, increasing the frequency of irrigation to three times in the normal year, and adopting efficient water -saving irrigation technology are realizable methods.
英文关键词	gentle slope orchard N accumulation-migration N fate N source semi-arid area
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001178184900001
WOS关键词	WATER-USE EFFICIENCY ; DIFFERENT LAND USES ; ATMOSPHERIC NITROGEN ; AMMONIA VOLATILIZATION ; OXIDE EMISSIONS ; NUTRIENT-UPTAKE ; N2O EMISSIONS ; CHINA ; SOIL ; IRRIGATION
WOS类目	Agricultural Engineering
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/396958
推荐引用方式 GB/T 7714	An, Miaoying,Xie, Ying,Han, Yuguo,et al. Nitrogen source and fate of typical orchard with gentle slope in semi-arid areas[J],2023,16(6):167-175.
APA	An, Miaoying,Xie, Ying,Han, Yuguo,Zhou, Jinxing,Guo, Hulin,&Qu, Zhixu.(2023).Nitrogen source and fate of typical orchard with gentle slope in semi-arid areas.INTERNATIONAL JOURNAL OF AGRICULTURAL AND BIOLOGICAL ENGINEERING,16(6),167-175.
MLA	An, Miaoying,et al."Nitrogen source and fate of typical orchard with gentle slope in semi-arid areas".INTERNATIONAL JOURNAL OF AGRICULTURAL AND BIOLOGICAL ENGINEERING 16.6(2023):167-175.