[1]MA Fuliang,FU Suhua,LUO Guanghui.Soil Chemical Characteristics of the Waterlogged Land on Slope Cropland in Typical Black Soil Region of Northeast China[J].Research of Soil and Water Conservation,2017,24(05):51-54.
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Soil Chemical Characteristics of the Waterlogged Land on Slope Cropland in Typical Black Soil Region of Northeast China
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
24
Number of periods:
2017 05
Page number:
51-54
Column:
Public date:
2017-10-28
- Title:
- Soil Chemical Characteristics of the Waterlogged Land on Slope Cropland in Typical Black Soil Region of Northeast China
- Keywords:
- black soil; slope cropland; waterlogged land; soil property
- CLC:
- S153.6+1;S153.6+2
- DOI:
- -
- Abstract:
- The typical black soil zone in northeast China is an important commodity grain production base and plays crucial roles in the national food security and economic stability. As a special form of soil degradation, waterlogged lands severely affect the agricultural production in reclamation regions. The objective of this study was to analyze the differences of soil chemical characteristics between waterlogged land and the normal cultivated land and to try to find the special soil chemical characteristics of waterlogged land. The sampling points were set in and around the waterlogged land on the slope cropland in typical black soil region of northeast China. The oxidation and reduction properties-related indicators of soil were measured. The results showed that the differences in soil chemical characteristics between waterlogged land and the normal cultivated land were significant. The soil pH value (5.53) in waterlogged land is significantly lower than that of the normal cultivated land. The soil in waterlogged land has higher organic matter and the higher organic matter is found in the central zone of the waterlogged land. Eh in waterlogged land is lower and the spatial variation range is larger than that of normal cultivated land. But the soil in waterlogged land has not reach the strength reduction status. Much Fe3+ and part of manganese ion with high valence are reduced rapidly because the soil in waterlogged land keeps high water content for a long term. The total reducing substances, ferrite iron content and bivalent manganese content of waterlogged soil are 20 times, 12 times and 10 times higher than those of the normal cultivated soil, respectively.
- References:
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