耕地利用强度评价方法的县域休耕适用性——以曲周县为例

为研究耕地利用强度评价方法的县域休耕适用性,以曲周县为例,对比基于种植强度、农业投入产出、土地集约利用、土地利用时序性的4种耕地利用强度评价体系。结果表明:1)基于土地利用时序性和基于投入产出的耕地利用强度评价方法对曲周休耕的适用性较好,可从宏观层面辅助区域休耕决策;2)基于种植强度和基于土地集约利用的耕地利用强度评价结果与曲周县耕地利用特征较为不符,不宜应用于曲周县休耕。4种评价方法均是对区域耕地利用强度的宏观评价,若从微观层面评价耕地利用强度,制定具体休耕措施需引入地块尺度的区分不同耕作方式的指标。

Fallow applicability of cropland use intensity assessment methods in county level: A case study of Quzhou County

In order to study the fallow applicability of cropland use intensity assessment methods in county level,Quzhou County is taken as an example,our kinds of cropland use intensity evaluation systems were constructed based on planting intensity,agricultural input and output,cropland intensification and the sequence of land use.The results indicate that:Firstly,the evaluation method of cropland use intensity based on land use timing and input-output has better fallow applicability in Quzhou,and can assist regional fallow decision-making at macro level;Secondly,the evaluation results of cropland use intensity based on planting intensity and intensive land use and the current characteristics of cropland use in Quzhou County are not suitable for fallow in Quzhou;Lastly,the four evaluation methods of cropland use intensity are all regional macro-indicators.To evaluate the cropland use intensity from micro-level,land scale indicators to distinguish different farming methods to formulate specific fallow measures are needed to be introduced into the assessment system.