Most of his stories are set on the prairie and portray the struggle of the prairie farmers.
加拿大作家羅斯的小說多數(shù)以(大)草原為背景 ,描寫草原人的生活斗爭。
According to the rotor size of Mandal RC5C and Stoks law,a segregation procedure for soil particle size fractionation was designed,and used for the particle separation of Huangmian soil(Calcaric cambisols,FAO),Huihe soil(Haplic greyxems,FAO),and Helu soil(Calcic kastanozems,FAO) in the Loess Plateau of China,and of Orthic Brown Chernozem,and Orthic Black Chernozem in Canadian Prairie.
用新設(shè)計出的土壤顆粒分級方法對 3種黃土高原的土壤 (黃綿土、灰褐土、黑壚土 )和 2種加拿大北美(大)草原的土壤 (典型褐灰鈣土、典型黑灰鈣土 )進行了分組 ,其結(jié)果與吸管法所得的結(jié)果相吻合 ,表明這一分級方法的分析誤差小、適用的土壤范圍廣 ,可用于土壤有機質(zhì)、土壤中N、P、S等元素在不同粒徑中分布等研究 。