[1]QIN Rui-jie,ZHENG Fen-li,LU Jia.The Effect of Herbaceous Plant Growth on the Soil Aggregate Stability[J].Research of Soil and Water Conservation,2011,18(03):141-144.
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The Effect of Herbaceous Plant Growth on the Soil Aggregate Stability
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
18
Number of periods:
2011 03
Page number:
141-144
Column:
Public date:
2011-06-20
- Title:
- The Effect of Herbaceous Plant Growth on the Soil Aggregate Stability
- CLC:
- S153.6+22
- DOI:
- -
- Abstract:
- The effect of the growth of wheatgrass(Agropyron cristatum),tall fescue(Festuca arundinacea) and alfalfa(Medicago sativa) on the soil aggregate stability was investigated in a greenhouse using the pot experiment and slow wet method of Le Bissonnais method.The experimental design includes four treatments(wheatgrass,tall fescue,alfalfa and blank control),and the scheming experiment days are 90d,130d,220d and 250d,respectively.The results showed that the aboveground biomass and underground biomass of three plants increased significantly with growth.Under the experiment treatments,the mean weight diameter(MWD) of soil aggregate for control treatment was not changed during 250 d of experiment.For the wheatgrass and alfalfa treatments,MWD increased significantly during 250d of experiment,while for the tall fescue treatment,change trend of MWD was similar to the control treatment.The correlation analysis showed that the grass growth time,aboveground biomass,underground biomass and soil organic matter have the positive effects on MWD.For wheatgrass treatment,there was significant correlation between MWD,growth time and underground biomass,while for tall fescue and alfalfa treatments,there was no significant correlation.Meanwhile,under the experimental conditions,the growth time and plant species of grass were the major factors affecting soil aggregate stability.
- References:
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1900-01-01