[1]WEI Binmeng,ZHAO Xuan.Effect of Addition of Feldspathic Sandstone on Improvement of Aeolian Sand Soil Quality and the Time Effect[J].Research of Soil and Water Conservation,2017,24(06):16-21.
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Effect of Addition of Feldspathic Sandstone on Improvement of Aeolian Sand Soil Quality and the Time Effect
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
24
Number of periods:
2017 06
Page number:
16-21
Column:
Public date:
2017-11-24
- Title:
- Effect of Addition of Feldspathic Sandstone on Improvement of Aeolian Sand Soil Quality and the Time Effect
- CLC:
- S156.5
- DOI:
- -
- Abstract:
- The aim of the present study was to develop scientific evidence about application of feldspathic sandstone to improve Mu Us Sandy Land for agriculture cultivation. Four treatments were feldspathic sandstone:sand=1:1, 1:2, 1:5 and loess:sand=1:2 (CK), and set up and managed with wheat maize rotation system over a 6-year study period. The results showed that sand content in the composite soil decreased with feldspathic sandstone increasing, but silt content increased, indicating that adding feldspathic sandstone promoted the transform of sand soil to loam soil. Furthermore, soil sand content decreased but silt and clay content increased significantly, and gradually move downward with the increase of planting years, in particular, this effect was the most obvious at the soil depth of 0-40 cm. The water stable aggregates >0.25 mm (WR0.25), mean weight diameter (MWD), geometric mean diameter(GMD)and the amounts of soil particles>5 mm, 2~5 mm, 1~2 mm and 0.5~1 mm in every treatment increased with duration of planting years, in which the content of 0.25~0.5 mm aggregate was the maximum. Additionally, soil organic matter also increased significantly with the increase of planting years. In summary, sand soil amended with feldspathic sandstone at the ratios of 1:1~5:1 could improve soil texture and structure and enhance soil organic matter, and the effects of ratios at 1:1~2:1 on soil improvement were the best.
- References:
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1900-01-01