保护性耕作技术适宜性区划的指标体系初探——以免耕为例

保护性耕作是国际农业可持续发展的重要支撑技术。但目前该技术类型种类繁多且零散、规范性差,限制了其大面积的推广应用。因此,亟需根据不同区域的自然、社会、经济条件来研究不同技术的空间适应性和布局,制定区域保护性耕作技术区划,为区域保护性耕作技术的推广应用提供科学支撑。基于以往对保护性耕作(以免耕为例)的研究成果,综合分析了免耕与自然环境以及社会经济环境之间的内在联系,利用层次分析法提出了免耕区划的指标体系,对免耕这项保护性耕作技术的适宜性区划进行了初步探讨,以期能够抛砖引玉,为保护性耕作技术区划的进一步研究提供参考。

The Indicator System for the Suitability Regionalization of Conservation Tillage: a Case Study of No-tillage

Conservation tillage(CT)is the important supporting technique for the sustainable development of international agriculture.But at present,the CT is confined to Promotion in a large area,due to the types of CT are so various,scattered and non-normative.So it is urgent that the spatial suitability and distribution of various techniques should be studied based on the different nature,society and economy of different regions and the regionalization of CT should be constituted.Only in this way can we provide the scientific support for the extension and application of the CT in different regions.Based on the researches and findings of conservation tillage-take no-tillage as an example,we had comprehensively analyzed the internal relationship between no-tillage and nature,economy and society and developed a division index of no-tillage by using AHP method.And this is the way that I discuss the suitability regionalization of no-tillage which belongs to CT,aimed at providing references for further study of the regionalization of CT.