摘要
耕地后备资源调查是强化耕地保护和保障粮食安全的重要举措.以新一轮全国耕地后备资源调查评价工作为依托,从生态条件、地形坡度、年积温、年降水量和灌溉条件、土壤质地、土壤重金属污染状况、盐渍化程度、土壤pH、土层厚度和耕作便利度等方面入手,采用限制性因子法对贵州省内其他草地、沙地、裸土地进行综合调查评价,更新耕地后备资源调查成果,为各地新增耕地开发提供参考.
Abstract
The investigation of arable land reserve resources is an important measure to strengthen arable land protection and ensure food security.Based on the new round of national survey and evaluation of arable land reserve resources,starting from ecological conditions,terrain slope,annual accumulated temperature,annual precipitation,irrigation conditions,soil texture,soil heavy metal pollution status,salinization degree,soil pH,soil layer thickness,and cultivation convenience,the restrictive factor method is used to comprehensively survey and evaluate other grasslands,sandy land,and bare land in Guizhou province,updating the survey results of arable land reserve resources,and providing reference for the development of new arable land in various regions.
维普
万方数据