It can be seen that there is a clear trend in soil shrinkage characteristics under different suction conditions under the influence of different plant roots.
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Research on the mechanism of plant root protection for soil slope stability.
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The sentences
The difference in root length index among the three herbaceous plants was found to be highly significant.
With the increase in planting years, there is a gradual development of herb roots and a decline in herb rhizomes, which may result in an increasing trend in the content of organic matter in the soil [ 68 ].