Relationship Between Soil Organic Matter and Total Nitrogen in Compound Soil of Arsenic Sandstone and Sand with Number of Maize Cultivation Years in Mu Us Sand Land

doi:10.13961/j.cnki.stbctb.2019.02.038

Home > Archive>Volume 39, Issue 2, 2019 >242-245,252. DOI:10.13961/j.cnki.stbctb.2019.02.038

Relationship Between Soil Organic Matter and Total Nitrogen in Compound Soil of Arsenic Sandstone and Sand with Number of Maize Cultivation Years in Mu Us Sand Land
DOI:
                        10.13961/j.cnki.stbctb.2019.02.038
                    
Author:
                        Zhang HaiouZhang Haiou
Shaanxi Provincial Land Engineering Construction Group Co., Ltd., Institute of Land Engineering and Technology, Shaanxi Provincial Land Engineering Construction Group Co., Ltd., Key Laboratory of Degraded and Unused Land Consolidation Engineering, the Ministry of Land and Resources, Shaanxi Provincial Land Consolidation Engineering Technology Research Center, Xian, Shaanxi 710075, China;Institute of Water Resources and Hydro-Electric Engineering, Xian University of Technology, Xian, Shaanxi 710048, China
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Wang HuanyuanWang Huanyuan
Shaanxi Provincial Land Engineering Construction Group Co., Ltd., Institute of Land Engineering and Technology, Shaanxi Provincial Land Engineering Construction Group Co., Ltd., Key Laboratory of Degraded and Unused Land Consolidation Engineering, the Ministry of Land and Resources, Shaanxi Provincial Land Consolidation Engineering Technology Research Center, Xian, Shaanxi 710075, China
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Sun YingyingSun Yingying
Shaanxi Provincial Land Engineering Construction Group Co., Ltd., Institute of Land Engineering and Technology, Shaanxi Provincial Land Engineering Construction Group Co., Ltd., Key Laboratory of Degraded and Unused Land Consolidation Engineering, the Ministry of Land and Resources, Shaanxi Provincial Land Consolidation Engineering Technology Research Center, Xian, Shaanxi 710075, China
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Abstract:

[Objective] The purposes of this paper are to evaluate the characteristics of carbon and nitrogen in soils with different proportion of arsenic sandstone and sand under different cultivation years in Mu Us sand land, and to determine whether the newly-formed soil structure can develop continuously and steadily.[Methods] Based on the data of field plots from 2013 to 2016, the temporal and spatial variation characteristics of soil organic matter and total nitrogen and the relationship between the three proportions of sandstone and sand in different planting years were studied.[Results] ① The soil organic matter and total nitrogen content of different proportions showed a steady upward trend with the number of crop cultivation years; ② In the four years, the soil organic matter and total nitrogen content of the three compound soils showed 1:1 > 1:2 > 1:5, and the difference was significantly different from that in 2013(p < 0.01). ③ There were significant positive correlations between soil organic matter and total nitrogen in the three proportions under different planting years. The correlation coefficients were 0.86, 0.89 and 0.74.[Conclusion] Proportions and cultivation years are important factors affecting the contents of organic matter and total nitrogen in newly constructed soil.

Key words:newly constructed soil;cultivation years;carbon and nitrogen relationship;Mu Us sand land;arsenic sandstone

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张海欧,王欢元,孙婴婴.毛乌素沙地玉米不同种植年限砒砂岩与沙复配土壤有机质与全氮的关系[J].水土保持通报英文版,2019,39(2):242-245,252

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Received:September 27,2018
Revised:October 24,2018
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Online: May 10,2019
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