Soil moisture and infiltration characteristics for artificial pasture planted on opencast coal mining tailings

doi:10.11686/cyxb2015231

Abstract

Abstract: This study analyzed the above-ground biomass, soil moisture and infiltration rates for different artificial pastures planted on opencast coal mine tailings. The above-ground biomass of different artificial grasslands was significantly different (P<0.05), with the above-ground biomass of shrub-grassland and mixed planting of shrub and grass being greater than that of single-plant pasture. The above-ground biomasses of Agropyron mongolicum+Artemisia desertorum pasture and Astragalus adsurgens+A. desertorum pasture were higher than those of A. mongolicum and A. adsurgens pasture by 40.84%-47.88% and 27.31%-53.49%, respectively. Soil water content of artificial pasture increased with increased soil depth and was highest for the 20-30 cm soil layer in Hedysarum scoparium pasture. The above-ground biomass of different artificial grassland types negatively correlated with the accumulated mean value of soil moisture. The mean initial infiltration of mixed plantings of shrub and grass were higher than those of single plant pasture by 44.25%. These results indicate that mixed planting of shrub and grass is the best choice for soil development and vegetation restoration of opencast coal mine tailings.

YANG Zheng, WANG Dong, LIU Yu, ZHU Yuan-Jun, WU Gao-Lin. Soil moisture and infiltration characteristics for artificial pasture planted on opencast coal mining tailings[J]. Acta Prataculturae Sinica, 2015, 24(12): 29-37.

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