Elements release laws of water and mulched gravel interaction
LI Wangcheng1,2,3, WANG Xia1*, LIU Minan4, WANG Shuangtao1, DONG Yaping1, ZHAO Yan1
1.School of Civil and Hydraulic Engineering, Ningxia University, Yinchuan, Ningxia 750021, China; 2.The Ningxia Water-saving Irrigation and Water Resources Regulation and Control Engineering Technology Research Center, Yinchuan, Ningxia 750021, China; 3.Key Laboratory for Restoration and Reconstruction of Degraded Ecosystem in Northwest China of Ministry of Education, Yinchuan, Ningxia 750021, China; 4.School of Agriculture, Ningxia University, Yinchuan, Ningxia 750021, China
Abstract:To understand the elements release laws of dry-wet alternation and freeze-thaw cycles of the mulched gravel, a major mulched gravel in Zhongwei area of Ningxia was studied.The composition of green slate gravel elements and the accumulation process of gravel solutions of dry-wet alternation and freeze-thaw cycles were analyzed. The gravel was composed of 25 elements such as O, Si, and Fe, which contained a variety of mineral elements required for plant growth and soluble in water.Major elements, trace elements, and beneficial elements required for the growth of plants were released by the gravel during the dry-wet alternation and freeze-thaw cycles. After 50 dry-wet alternations and freeze-thaw cycles, the cumulative release of elements was 786.90 mg and 958.18 mg, respectively. The elemental composition of a major mulched gravel in the Zhongwei area of Ningxia was known, and the elements release laws of mulched gravel during the dry-wet alternation and freeze-thaw cycles were known. It was of great significance to maintaining the health of local soils and improving the quality of crops.
李王成,,, 王霞*, 刘明安, 王双涛, 董亚萍, 赵研. 压砂砾石水-岩作用下元素释放规律[J]. 排灌机械工程学报, 2018, 36(10): 995-999.
LI Wangcheng,,, WANG Xia*, LIU Minan, WANG Shuangtao, DONG Yaping, ZHAO Yan. Elements release laws of water and mulched gravel interaction. Journal of Drainage and Irrigation Machinery Engin, 2018, 36(10): 995-999.
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