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按照土地退化有关概念和农田生态系统的特点,运用参与式方法、KJ法、德尔菲法等方法,建立小尺度范围、人为驱动力影响下的农田生态系统土地退化监测与评价指标体系,包括耕作制度、耕作措施、土壤残膜污染、肥料污染、农药污染、灌溉方式、土壤含盐量、工程排碱措施、农田防护林、贫困状况共10项指标。该体系各指标具有可获取性,易于操作,便于土地利用者自我监测,减少人为不合理的农田土地利用活动,提高了土地生产力,可有效控制农田土地退化。
According to the related concepts of land degradation and the characteristics of farmland ecosystem, this paper establishes a monitoring and evaluation index system of land degradation in agroecosystems under the influence of small-scale and man-made driving forces through the methods of participatory method, KJ method and Delphi method, System, tillage measures, soil residual film pollution, fertilizer pollution, pesticide pollution, irrigation methods, soil salinity, engineering measures to eliminate alkali, farmland shelterbelts, and poverty conditions. The indicators of the system are accessible and easy to operate, which makes it easier for land users to self-monitor, reduce the unreasonable farmland land use activities, improve land productivity and effectively control farmland land degradation.