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[1]LI Chunyu,JIA Penghua,WANG Shutao,et al.Soil Nutrient Status and Distribution Characteristics of Cultivated Land Under Different Altitude Gradients in Fuping County[J].Research of Soil and Water Conservation,2022,29(01):197-204.

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Soil Nutrient Status and Distribution Characteristics of Cultivated Land Under Different Altitude Gradients in Fuping County

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 29 Number of periods: 2022 01 Page number: 197-204 Column: Public date: 2022-02-20

Title:: Soil Nutrient Status and Distribution Characteristics of Cultivated Land Under Different Altitude Gradients in Fuping County

Author(s):: LI Chunyu¹, JIA Penghua¹, WANG Shutao¹, LI Jinlu², CHEN Yaheng¹, XU Hao^1,3; (1.College of Resources and Environmental Science, Hebei Agricultural University, Baoding 071000, China; 2.Hebei Institute for Natural Resources Planning, Shijiazhuang, Hebei 050000, China; 3.College of Land and Resources, Hebei Agricultural University, Baoding, Hebei 071000, China)

Keywords:: soil science; soil nutrient distribution; Kriging interpolation; Fuping County arable land

CLC:: S158

DOI:: -

Abstract:: The purpose of this study is to provide theoretical basis for scientific and reasonable fertilization of cultivated soil in Taihang Mountain area. Based on the survey data of soil testing and formulated fertilization in Fuping County in 2018, the current situation and distribution characteristics of soil organic matter, alkali-hydrolyzable nitrogen, available phosphorus, available potassium and pH in Fuping County was examined by using statistics and Kriging interpolation method. The results showed that the pH and average contents of organic matter, alkali-hydrolyzated nitrogen, available phosphorus and available potassium in cultivated soil were 7.08, 21.84 g/kg, 70.53 mg/kg, 22.43 mg/kg and 75.43 mg/kg, respectively, and the soil pH value was mainly neutral, accounting for 65.42%; the contents of soil organic matter, alkali hydrolyzable nitrogen and available potassium were mainly in the medium level, accounting for 45.55%, 43.19% and 59.86% of the total, respectively, while those in the medium level and above accounted for 98.76%, 64.42% and 75.96% of the total, respectively; the content of available phosphorus in soil was mainly at the high level, accounting for 29.99%, and 74.15% at the high or above level; in terms of spatial distribution, soil organic matter, alkali-hydro nitrogen, available phosphorus and available potassium increased gradually from southeast to northwest; however, in terms of altitude gradient, the contents of organic matter and available phosphorus increased in the order: hilly area(21.85 g/kg)<low mountain area(21.92 g/kg)<middle mountain area(22.70 g/kg), the contents of alkaline nitrogen increased in the order: middle mountain area(64.72 mg/kg)<hilly area(70.53 mg/kg)<low mountain area(70.71 mg/kg), and the contents of available potassium increased in the order: low mountain area(74.75 mg/kg)< hilly area(75.21 mg/kg)<middle mountain area(83.78 mg/kg); soil pH did not show obvious regularity; there were the very positive correlations between soil organic matter, available nitrogen, available phosphorus, available potassium and altitude terrain factors. These results can provide a theoretical basis for scientific and rational fertilization of cultivated land in Fuping County, and promote the development of precision agriculture and rural revitalization.

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Last Update: 2022-02-20