黄土高原半湿润区苜蓿草地土壤干层形成及氮素消耗研究
万素梅, 贾志宽, 王勇, 韩清芳
Dry Soil Layer Forming and Soil Nitrogen Consumption Characteristic of Alfalfa Grassland in the Semi-humid Region of the Loess Plateau
WAN Su-mei, JIA Zhi-kuan, WANG Yong, HAN Qing-fang
自然资源学报 . 2008, (3): 383 -390 .  DOI: 10.11849/zrzyxb.2008.03.004