农用地资源修正法定级之技术路线探讨——以佛山市高明区为例

TECHNIQUES FOR THE REVISING APPROACH IN AGRICULTURAL LAND GRADATION——A CASE OF GAOMING DISTRICT IN FOSHAN CITY

目前我国农用地资源定级很少运用修正法,少数学者对修正法定级做过尝试性的实证研究工作,以期探讨修正法定级技术路线的科学性与可行性。在前人研究的基础上,以佛山高明区为例,探讨了修正法定级之修正基础的确定、修正因素的选择、修正系数的计算、定级指数的确定等几个关键技术步骤,提出了以农用地自然质量等指数作为修正基础,采用标准化方法对修正因素分值进行订正,用连乘法计算农用地质量定级指数来划分农用地级别的修正法定级的技术路线,并与因素法定级的成果进行对比分析与验证。

The revising approach is seldom adopted in agricultural land gradation in China. Although a few studies have been carried out by using the approach, relatively few have examined its rationality and feasibility. The present study may thus represent a pioneer research. Some key techniques for the revising approach were examined in this paper, such as the selection of revising base and factors, and the computation of revising coefficients and of the gradation indexes. One way for the technique was then established, with the inclusion of the natural quality classification index as the revising base, the standardization of all factors＇ influencing values, and with the multiplication of the revising coefficients to obtain the gradation index in quality of agricultural land at last. A comparison between the factor approach and the revising approach in agricultural land gradation was presented. Gaoming, a district in Foshan city, was used as a case for the employment of the approach.