共 3 条
[1]
生态脆弱区煤炭开发与生态水位保护.[M].王双明; 等著.科学出版社.2010,
[2]
[3]
Axle load and tillage effects on the shrinkage characteristics of a Mollic Ochraqualf in northwest Ohio.[J].M Flowers;R Lal.Soil & Tillage Research.1999, 3

