Characteristics of Zn flux in cultivated soil layer in karst and non-karst areas of Hengzhou, Guangxi

被引：0
|
作者：
Yang, Ye-Yu [1 ,2 ,3 ]
Li, Cheng [1 ,2 ]
Yang, Zhong-Fang [4 ]
Zhang, Qi-Zuan [5 ]
Wang, Lei [6 ]
Zou, Sheng-Zhang [1 ,2 ]
Wei, Hua-Zhou [3 ,7 ]
Mo, Jia-Rong [3 ,7 ]
机构：
[1] Guangxi Karst Resources and Environment Research Center of Engineering Technology, International Research Centre on Karst under the Auspices of UNESCO, Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin,541004, China
[2] Pingguo Guangxi, Karst Ecosystem, National Observation and Research Station, Pingguo,531406, China
[3] Technical Innovation Center of Mine Geological Environmental Restoration Engineering in Southern Karst Area, Ministry of Natural Resources, Nanning,530028, China
[4] School of Earth Sciences and Resources, China University of Geosciences, Beijing,100083, China
[5] Tianjin Center, China Geological Survey, Tianjin,300170, China
[6] Geology Team No. 4 of Guangxi Zhuang Autonomic Region, Nanning,530031, China
[7] Natural Resources Ecological Restoration Center of Guangxi Zhuang Autonomous Region, Nanning,530028, China
来源：
Zhongguo Huanjing Kexue/China Environmental Science | 2024年 / 44卷 / 12期
关键词：
Irrigation - Jurassic - Zinc alloys;
D O I：
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中图分类号：
学科分类号：
摘要：
A comparative study was conducted to analyze the import and export pathways, as well as the annual input and output flux density of Zn in cultivated soil, in both karst and non-karst areas of Hengzhou, Guangxi. The results showed that the content of Zn in soil in karst area was significantly higher than that in non-karst area under the influence of the parent material. The input of soil Zn in both karst and non-karst areas was significantly affected by human activities, with atmospheric deposition being the primary input pathway. The average annual input flux densities were 494.15 and 484.99g/(hm2·a) in karst and non-karst areas, respectively. The main output pathway was through harvesting, with the annual output flux densities being 490.63 and 580.12g/(hm2·a) in karst and non-karst areas, respectively. The annual output flux density in non-karst area was slightly higher due to the influence of Fe-Mn nodulation and irrigation water. Overall, the annual input flux showed Zn accumulation. © 2024 Chinese Society for Environmental Sciences. All rights reserved.
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页码：6817 / 6827
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