地球化学与分等成果整合方法研究

A Comparative Study of the Integration Methods for Geochemical and Cultivated Land Grade Achievement

本文从科学管护土地角度出发,利用叠加法、因素法和系数法分别对土地质量地球化学评估成果和农用地分等成果进行整合,并对每种整合方法进行探讨,同时,以天津市宝坻区牛道口镇为研究区,对整合成果的适用性及优缺点进行讨论。结果表明,不同的整合方法各有优缺点,基于两项成果的叠加法可以保持成果的独立性;基于两项数据的因素法能够更全面地反映农用地的综合质量;基于两项数据的系数法易于表达,但过于强调经验。

In this paper, the achievements of land quality geochemical assessment and cultivated land quality evaluation were integrated by superposition method, factor method and coefficient method, and analyzed each integration method. Meanwhile, taking Niudaokou Town in Baodi District of Tianjin as the research area, the applicability and advantages and disadvantages of the integration results were discussed. The results showed that different integration methods have their own advantages and disadvantages, and the superposition method based on the two results could maintain their respective independence;the factor method based on the data could reflect the comprehensive quality of cultivated land;the coefficient method based on the two data is easy to express, but overemphasizes experience.