VERTICAL DISTRIBUTION OF MAJOR NUTRIENT ELEMENTS IN TYPICAL BLACK SOIL SECTIONS IN HAILUN, HEILONGJIANG PROVINCE: Before and After Reclamation
SONG Yun-hong1,2, ZHANG Zhe-huan1,2, YANG Feng-chao1, LIANG Shuai1,2, WEI Ming-hui1,2, LIU Kai1,2, XU Jiang1,2
1. Shenyang Center of China Geological Survey, Shenyang 110034, China; 2. Key Laboratory of Black Land Evolution and Ecological Effects, CGS, Shenyang 110034, China
Abstract:The study on the characteristics of major nutrient elements in typical black soil areas before and after reclamation is important for sustainable utilization of black soil resources and protection of the breadbasket in Northeast China. Four sections are laid out in the typical black soil areas where land use has not changed for the past 40 years in Helen area, eastern Songnen Plain, to make a comparative study on the main index elements for soil fertility (organic matter, total nitrogen, total phosphorus, C:N and pH value) in the sections before and after reclamation. The results indicate that the contents of organic matter, total nitrogen and total phosphorus show a change trend of rapid decrease through slow decrease to basically stable with soil depth. Although reclamation has changed the content of nutrient elements in soil, it does not change the content variation rule with soil depth. Reclamation affects the pH value of black topsoil to a certain extent, which led to slow acidification of cultivated land. The research results will expectedly provide scientific basis for sustainable utilization, protection and restoration of black soil resources.
宋运红, 张哲寰, 杨凤超, 梁帅, 魏明辉, 刘凯, 许江. 黑龙江海伦地区垦殖前后典型黑土剖面主要养分元素垂直分布特征[J]. 地质与资源, 2020, 29(6): 543-549.
SONG Yun-hong, ZHANG Zhe-huan, YANG Feng-chao, LIANG Shuai, WEI Ming-hui, LIU Kai, XU Jiang. VERTICAL DISTRIBUTION OF MAJOR NUTRIENT ELEMENTS IN TYPICAL BLACK SOIL SECTIONS IN HAILUN, HEILONGJIANG PROVINCE: Before and After Reclamation. GEOLOGY AND RESOURCES, 2020, 29(6): 543-549.
Powlson D S, Gregory P J, Whalley W R, et al. Soil management in relation to sustainable agriculture and ecosystem services[J]. Food Policy, 2011,36:S72-S87.
Song Y H, Dai H M, Yang F C, et al. A preliminary study on soil degradation and nutrient imbalance of typical black soil in northeast China[C]//Proceedings of the 6th Academic Conference of Geology Resource Management and Sustainable Development. Beijing:Aussino Academic Publishing, 2018:328-335.
[10]
Song Y H, Dai H M, Yang F C, et al. Temporal and spatial change of soil organic matter and pH in Cultivated Land of the Songliao plain in northeast China during the Past 35 Years[J]. Acta Geologica Sinica:English Edition, 2019,93(S3):142-143.
Zhang Y, Zang S Y, Sun L, et al. Characterizing the changing environment of cropland in the Songnen Plain, Northeast China, from 1990 to 2015[J]. Journal of Geographical Sciences, 2019,29(5):658-674.