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In Situ Soil Nitrogen Dataset from West of the Baiyangdian Lake for High-Nitrogen Accumulation Farmland Research


LV Qi1,2WANG Shiqin*1TAN Kangda1,2LIU Bingxia1ZHENG Wenbo1
1 Center for Agricultural Resources Research,Institute of Genetics and Developmental Biology,Chinese Academy of Sciences/Hebei Laboratory of Water-Saving Agriculture,Shijiazhuang 050022,China2 University of Chinese Academy of Sciences,Beijing 100049,China

DOI:10.3974/geodb.2026.04.07.V1

Published:Apr. 2026

Visitors:19       Data Files Downloaded:0      
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Key Words:

Baiyangdian Lake,vadose zone,high-nitrogen farmland,nitrate nitrogen,nitrite nitrogen

Abstract:

In order to investigate the migration and transformation laws of soil water and nitrogen in the vadose zone under different fertilization modes, long-term in situ monitoring was taken from June 2023 to September 2024 in the wheat-maize rotation farmland at Dulian Village, Anxin County, Xiong’an New Area, western Baiyangdian Lake. 3 field management treatments were established, including conventional fertilization, 25% nitrogen reduction fertilization, and biochar combined with 25% nitrogen reduction fertilization. Soil samples were collected at 11 vertical soil layers across 5 sampling periods from different soil depths (0-10 cm, 10-25 cm, 25-50 cm, 50-75 cm, 75-100 cm, 100-150 cm, 150-200 cm, 200-250 cm, 250-300 cm, 300-350 cm, 350-400 cm). The drying and weighing method and potassium chloride solution extraction combined with automated discrete chemical analysis were adopted to determine the profile distribution and dynamic variations of soil water content, nitrate nitrogen, and nitrite nitrogen. At last, a measured dataset of soil nitrogen was established for agricultural areas with high nitrogen accumulation in west of the Baiyangdian Lake. The dataset includes: (1) geolocation of the farmland plot; (2) vertically stratified soil texture of the plot; (3) soil water content; (4) measured nitrate nitrogen values in different soil layers; and (5) measured nitrite nitrogen values in different soil layers. The dataset is archived in .shp and .xlsx formats and consists of 9 data files with data size of 41.8 KB (compressed into 1 file with 35.4 KB).

Foundation Item:

National Natural Science Foundation of China (442377080);

Data Citation:

LV Qi, WANG Shiqin*, TAN Kangda, LIU Bingxia, ZHENG Wenbo. In Situ Soil Nitrogen Dataset from West of the Baiyangdian Lake for High-Nitrogen Accumulation Farmland Research[J/DB/OL]. Digital Journal of Global Change Data Repository, 2026. https://doi.org/10.3974/geodb.2026.04.07.V1.
.

References:


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     [9] Weitzman, J. N., Brooks, J. R., Compton, J. E., et al. Deep soil nitrogen storage slows nitrate leaching through the vadose zone [J]. Agriculture, Ecosystems & Environment, 2022, 332: 107949.
     [10] Zhu, X. Q., Miao, P., Wang, P. Z., et al. Variations and influencing factors of nitrate accumulation in the deep soil profiles of apple orchards on the Loess Plateau [J]. Agriculture, Ecosystems & Environment, 2022, 335: 108005.
     [11] Liang, H. Y., Wang, S. Q., Wei, S. C. Nitrate distribution and accumulation in deep unsaturated zone soils in Piedmont of North China Plain [J]. Soils, 2017, 49(6): 1179-1186.
     [12] Niu, X. S., Zhang, C., Ju, X. T. Mechanism of nitrogen leaching in fluvo-aquic soil and deep vadose zone in the North China Plain [J]. Chinese Journal of Eco-Agriculture, 2021, 29(1): 53-65.

Data Product:

ID Data Name Data Size Operation
1 SoilNitrogenBaiyangdianLake.rar 35.49KB
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