The method was used to synthetically evaluate agricultural resources use efficiency of 81 counties in Gansu province, and the results were classified.
利用该方法对甘肃省81个县域单元的农业资源利用效率进行综合评价,并对综合评价结果进行分级。
This law combined with a subsidy for this use has created a flourishing corn market in the United States, but has also diverted agricultural resources from food to fuel.
这个包含了大量补贴的法案使得美国谷物交易市场迅速繁荣起来,导致大量本应用于食用的农作物转而投入到乙醇燃料的成产中。
Agricultural labor force aging; Land resources use efficiency; Inverted "u" type curve.
农业劳动力老龄化;土地资源利用效率;倒“U”型关系。
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