土地评价类别管见

A Discussion on the Types of Land Evaluation

土地潜力评价、土地适宜性评价和土地生产潜力评价各有其特定的内容和服务目的,应予明确区分。土地潜力评价揭示某一块土地可被利用的范围以及在这些利用方面的潜在能力。在进行土地潜力评价之前必须规定土地利用方式的优先次序。优先次序不同,即使同一块土地其评价结果也不同。土地适宜性评价强调针对特定的土地利用方式对土地作出适宜性等级评定,每一块土地均可针对不同利用方式作出土地适宜性等级评定。土地生产潜力评价是指在一定的劳动和物质投入下土地用于农、林、牧业所能提供的物质产品的能力的评定。

Land capability classification, land suitability classification and land productivity potential evaluation have their own contents and serving aims and, therefore, should be clearly distinquished. Land capability classification is to reveal the range in which a given piece of land can be used and its capabilities in these utilizations. Land suitability classification puts its emphasis on the suitability as-sessment of land utilization type. Land productivity potential evaluation is to assess the potential of land in providing material products of agriculture, forestry or livestock under a given labour and material input.