Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s40333-016-0056-1 |
Variation of Zn content in soils under different land-use types in the Hetao oasis, Inner Mongolia of China | |
Zhu Yangchun; Zhao Xueyong; Lian Jie; Chen Min | |
通讯作者 | Zhu Yangchun |
来源期刊 | JOURNAL OF ARID LAND |
ISSN | 1674-6767 |
EISSN | 2194-7783 |
出版年 | 2016 |
卷号 | 8期号:6页码:861-870 |
英文摘要 | Understanding the status and distribution of the micronutrient Zn in soils is important for managing plant growth and preventing soil pollution for agricultural irrigation systems in arid and semi-arid regions. In this study, a total of 195 soil samples from five soil layers (0-20, 20-40, 40-60, 60-80 and 80-100 cm) in the three land-use types (wasteland, forestland and cropland) after long-term agricultural fertilization and irrigation with Yellow River water were collected in the middle of the Hetao oasis, i.e. the Yongji irrigation sub-oasis. We analyzed the vertical and spatial distributions of Zn content and its relationship with soil properties to determine whether differences of Zn content existed in the soil profiles. The results revealed that the mean content of Zn was 107 mg/kg, 1.9 times higher than the background value (55.7 mg/kg) of the Hetao oasis and much lower than the secondary standard value (300 mg/kg) of the Chinese Environmental Quality Standard for Soils when pH > 7.5. Soil Zn contents were not significantly different and the coefficients of variation of Zn contents were less than 50% in the five soil layers. Soil Zn content was similar from southern to northern parts but increased from western to eastern parts in the sub-oasis. Soil Zn contents did not differ significantly among the three land-use types, but soil total nitrogen (TN) contents were significantly higher in the agriculturally managed forestland and cropland than in the wasteland (P < 0.05). Zn was significantly and positively correlated with TN (F=36.6, P < 0.001). The use of fertilizers may increase the content of Zn in soils, but flooding irrigation may minimize the differences in the spatial distribution of soil Zn content in the whole sub-oasis. This research is of important value for soil pollution control and sustainable land use management in arid and semi-arid regions. |
英文关键词 | fertilizer land-use type spatial distribution soil profile soil property |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000386126200004 |
WOS关键词 | HEAVY-METALS ; AGRICULTURAL SOILS ; IRRIGATION DISTRICT ; TRACE-ELEMENTS ; PLANT SYSTEM ; YELLOW-RIVER ; PADDY SOIL ; ZINC ; GROUNDWATER ; DYNAMICS |
WOS类目 | Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
来源机构 | 中国科学院西北生态环境资源研究院 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/194216 |
作者单位 | Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Naiman Desertificat Res Stn, Urat Desert Grassland Res Stn, Lanzhou 730000, Peoples R China |
推荐引用方式 GB/T 7714 | Zhu Yangchun,Zhao Xueyong,Lian Jie,et al. Variation of Zn content in soils under different land-use types in the Hetao oasis, Inner Mongolia of China[J]. 中国科学院西北生态环境资源研究院,2016,8(6):861-870. |
APA | Zhu Yangchun,Zhao Xueyong,Lian Jie,&Chen Min.(2016).Variation of Zn content in soils under different land-use types in the Hetao oasis, Inner Mongolia of China.JOURNAL OF ARID LAND,8(6),861-870. |
MLA | Zhu Yangchun,et al."Variation of Zn content in soils under different land-use types in the Hetao oasis, Inner Mongolia of China".JOURNAL OF ARID LAND 8.6(2016):861-870. |
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