| 1. | So in this thesis , 6 classes ( land area , special statistic and investigation , economic and societal statistic , water quality monitoring , soil environment monitoring , soil fertility monitoring ) , 90 items of national sustainable land use monitoring monitoring were illustrated , it is also give the method and period for the monitoring of every items 本文在前人土地可持续利用指标体系研究的基础上,提出了国家级土地可持续利用监测的六类(土地面积,专业调查统计,社会经济统计,水质监测,土壤环境监测和土壤肥力监测) ,九十项监测项目,确定了每个监测项目的监测方法与监测周期。 |