CAJ | 학술논문

测算耕地动态转换造成的耕地质量等级变化，评估耕地动态变化对数量与质量平衡的影响。采用综合分析法、模型侧算法、实证分析法，评估耕地生产能力变化与占补平衡实施成效。研究结果表明：耕地的占补平衡仅实现了数量平衡，但因城镇建设扩张占用了优质高等耕地而新增耕地质量等级较低，因此未达到质量平衡。特别是中国依靠开发后备资源来补充耕地而不是通过土地整理来增加质量等级较高的耕地，因此新增耕地的平均自然质量等级较低。研究结论：应加大土地整理补充耕地比例，从而提高耕地平均自然质量等级，达到耕地数量与质量占补平衡。
측산경지동태전환조성적경지질량등급변화，평고경지동태변화대수량여질량평형적영향。채용종합분석법、모형측산법、실증분석법，평고경지생산능력변화여점보평형실시성효。연구결과표명：경지적점보평형부실현료수량평형，단인성진건설확장점용료우질고등경지이신증경지질량등급교저，인차미체도질량평형。특별시중국의고개발후비자원래보충경지이불시통과토지정리래증가질량등급교고적경지，인차신증경지적평균자연질량등급교저。연구결론：응가대토지정리보충경지비례，종이제고경지평균자연질량등급，체도경지수량여질량점보평형。
The purpose of this paper is to assess the outcomes of dynamic change of cultivated land in terms of both quantity and quality balance. In particular, the research evaluated the effects of cultivated land conversion on average natural quality grades of cultivated land. Methods of comprehensive analysis, statistical model and empirical analysis are used to assess the effects of China＇s cultivated land balance program on potential land productivity. Results shows that the quantity balance was achieved, quality balance was not met due to both the loss of highly productive cultivated land from urban expansion and a flawed approach to adding newly cultivated land. In particular,China has typically relied on adding cultivated land by exploitation instead of consolidation, which would add land of higher productivity. Therefore, the quality of the added cultivated land has been rather poor. Conclusion is that the proportion of supplementary cultivated land by land consolidation should be increased to improve the average natural quality grades of cultivated land, aiming to maintain the quantity and quality balance of cultivated land across the country.