Effect of Zea mays and Bromus riparius on Soil and Water Loss on the Slope

doi:10.7668/hbnxb.2008.01.040

Abstract

Abstract: The effect of Zea mays and Bromusriparius on soil and water loss were studied,the experiment was con-ducted to plant crop and grass in runoff-plots on the 15 degree slope naturally, the bare slop is CK, then the runoff andsoil erosion amount and the biological characteristicsof corn and meadow bromes termly were measured,and difference ofsoil and water loss prevention effect on the slop land were determined. The results showed that soil and water loss becameless after both corn and meadow brome planting. And the leaf area and the coverage of meadow brome higher than corn,which was benefit for less soil and water loss at the rain season early. Meanwhile, roots of corn and meadow brome mainlydistributed in 0 - 10 cm soil layer, and the root biomass of meadow brome was 2. 88 times than that of corn. The rootbiomass improved the soil infiltration rate and reduced runoff,the runoff and erosion amount of meadow brome decreasedby 98. 2% and 99. 9% respectively,and the ability of water retention and soil-reinforcement of meadow brome was 5. 2and 1. 5 times than that of corn.

Key words: Corn, Meadow brome, Soil and water loss

CLC Number:

S157.1

LIU Su-jun, SUN Tie-jun, ZHANG Sheng, WU Ju-ying, SURI-guga. Effect of Zea mays and Bromus riparius on Soil and Water Loss on the Slope[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(1): 181-185. doi: 10.7668/hbnxb.2008.01.040.

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