讨论了城市土地定级的因素及各因素作用于土地级别的影响程度；
The factors affected the land gradation and their degrees are discussed, the models are difined, and an example of the land gradation is given.
目前针对武汉市城市土地的研究仅限于土地质量评价、土地分等定级、土地利用程度、土地利用结构演变及其动态监测层面。
At present, many studies aimed at Wuhan urban land only settled in land quality appraise, land classify, land use degree, land use structure evolvement and dynamic inspection, and so on.
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