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[1]ZHANG Xiaodong,LIU Zhigang,Reshalaiti·Maimaiti.The Variation of Soil Physicochemical Properties in Farmlands with Different Cultivation Years in Oasis of Xinjiang[J].Research of Soil and Water Conservation,2016,23(03):13-18.

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The Variation of Soil Physicochemical Properties in Farmlands with Different Cultivation Years in Oasis of Xinjiang

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 23 Number of periods: 2016 03 Page number: 13-18 Column: Public date: 2016-06-28

Title:: The Variation of Soil Physicochemical Properties in Farmlands with Different Cultivation Years in Oasis of Xinjiang

Author(s):: ZHANG Xiaodong¹, LIU Zhigang², Reshalaiti·Maimaiti¹; 1. Bayingol Vocational and Technology College, Korla, Xinjiang 841000, China;
2. Xinjiang Uygur Autonomous Region Agricultural Technology Promotion Center, Shanshan, Xinjiang 838200, China

Keywords:: cultivation years; soil nutrients; oasis farmland; Xinjiang

CLC:: S153.6

DOI:: -

Abstract:: The variation of soil nutrients of the farmlands with different cultivation years in Xinjiang oasis farmland was investigated by using the method of principal component score evaluation to evaluate the quality of the reclamation of oasis farmland in Xinjiang. The results showed that: (1) cultivation practices enhanced the accumulation of total organic carbon and POC/MOC in soils, increased rapidly in the initial period (0～3 years), but the increase was diminished after 9 years of cultivation; (2) soil moisture, pH, electrical conductivity, and the salt content of cultivation lands were significant higher than those of virgin lands (p < 0.05), soil moisture and electrical conductivity increased rapidly in the initial period (0～3 years), but the increase was diminished after 6 years of cultivation, while pH and salt content increased with cultivation years, and the increase was diminished after 6 years of cultivation; (3) the contents of soil nutrients and available nutrients of the land with more than 9 cultivation years were significantly higher than those of the virgin lands (p < 0.05), which showed first increased and then slowly decreased with cultivation years; (4) correlation analysis showed that total quantity of soil nutrients had a certain correlation with available nutrients; (5) the principal component analysis indicated that the farmland tended to degradation after 9 years of cultivation. Based on the summary of the above results, it can be concluded that short-term cultivation (0～9 years) can improve the effectiveness of soil fertility and nutrients in oasis farmlands of Xinjiang, but long-term cultivation (> 13 years) may make soil hard and saline and reduce soil fertility and nutrients.

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