山东省青州市耕地地力等级评价研究

本文介绍了农业部有关耕地地力等级评价在山东省青州市的试点研究结果。整个评价是建立在全面野外调查和室内化验分析以获取大量耕地地力相关信息的基础上,以GIS和SPSS等技术并结合有关数学模型为依托,对耕地地力进行的自动化和定量化评价。对耕地地力等级的分布特点、利用现状、存在问题及对策也进行了分析,希望能对青州市耕地高效和可持续利用提供科学依据。

GRADING AND ASSESSMENT OF SOIL FERTILITY OF CULTIVATED LAND IN QINGZHOU

An experiment was conducted trying to grade and assess soil fertility of the cultivated land in Qingzhou, Shandong, by the rules stipulated by the Ministry of Agriculture. Based on large amounts of information about soil fertility of the cultivated land obtained from field-survey and lab analysis, and with the aid of the techniques of GIS and SPSS as well as various mathematical models, the assessment was carried out automatically and quantitatively. The distribution characteristics, present land use, existing problems and countermeasures for cultivated land of different fertility grade were also discussed in this paper, in the hope that the results of the study may serve as scientific basis for efficient and sustainable use of the cultivated land in Qingzhou.