CAJ | 학술논문

[目的]对以生态脆弱及半干旱气候为典型特征的寿阳县进行农作物土地适宜性评价,以期为农田的可持续发展提供理论依据.[方法]针对研究区寿阳县的当地作物玉米、小麦、高粱和大麦,通过尺度推绎方法开展了传统及机械种植两种情景下的土地耕作适宜性评价.尺度推绎在一个土地系统中完成,该系统由土地单元,土地面和土地点几级空间系统组成.并通过气候调整指数修正了IAO(意大利海外农业研究所)的土地适宜性评价方法.[结果]4种作物种植适宦性出现了两极化现象:4种作物的最适宜等级(S1)和最不适宜等级(N2)在研究区占大部分地区.玉米、大麦和小麦在传统模式下更适宜耕作.[结论]未来的耕作政策应更加注重在非宜耕区实现耕地向林地与草地的转变,在宜耕区加大农业生产的投入,注意提高牧民生活与环境保护的平衡,以维持一个健康、稳定的生态系统.
[목적]대이생태취약급반간한기후위전형특정적수양현진행농작물토지괄의성평개,이기위농전적가지속발전제공이론의거.[방법]침대연구구수양현적당지작물옥미、소맥、고량화대맥,통과척도추역방법개전료전통급궤계충식량충정경하적토지경작괄의성평개.척도추역재일개토지계통중완성,해계통유토지단원,토지면화토지점궤급공간계통조성.병통과기후조정지수수정료IAO(의대리해외농업연구소)적토지괄의성평개방법.[결과]4충작물충식괄환성출현료량겁화현상:4충작물적최괄의등급(S1)화최불괄의등급(N2)재연구구점대부분지구.옥미、대맥화소맥재전통모식하경괄의경작.[결론]미래적경작정책응경가주중재비의경구실현경지향임지여초지적전변,재의경구가대농업생산적투입,주의제고목민생활여배경보호적평형,이유지일개건강、은정적생태계통.
In order to provide some preliminary recommendations for the sustainable use and management of croplands,land suitability evaluation for crops was carried out in Shouyang County which partly locates on the Loess Plateau suffering severe soil and water erosion and is characterized by ecological vulnerability and semi-arid climate.Here,land suitability for 4 local crops of maize,wheat,sorghum and millet under 2 cultivation senarios of tradition and mechanization was evaluated by a upscaling approach.The upscaling was implemented in a land form hierarchy which was composed of land unit,land facet and land site at 3 spatial levels.The IAO land suitability evaluation model for crops was revised by applying a meteorological revision index.Rresults showed that a polarized phenomenon occurred,which means that the most suitable class(S1)and the most unsuitable class(N2)were predominant in acreage percentage for all the 4 crops.Maize,millet and wheat were relatively more adaptive to be grown and should be ploughed in the traditional mode.Hence,future cropland use policy should pay more attention to the conversion of arable land to forestland and grassland in unsuitable areas and to more investment for agricultural production in suitable regions,and it is necessary to balance the relationship between the livelihood of local farmers and environmental protection to maintain a healthy and stable ecosystem.