CAJ | 학술논문

以甘肃省镇原县为研究区，结合我国玉米种植适宜区的必要生态条件提取镇原县春玉米种植相关生态因子，应用主成分分析和模糊综合评价法，对镇原县春玉米种植区的生态适宜度进行了综合评价。结果表明：镇原县玉米种植适宜度综合评价指数为0.68，属于春玉米适宜种植区；各生态因子隶属度分析表明，土壤有效钾和土壤有机质隶属度最小，分别为0.39和0.52；＞10℃积温因子隶属度接近1.0，达到优适值。镇原县春玉米种植区具有明显的热量优势；有效钾和有机质是镇原县玉米种植的限制性生态因子，两因子的改善将有助于镇原县春玉米产量的提高和经济效益的提升。图1，表3，参19。
이감숙성진원현위연구구，결합아국옥미충식괄의구적필요생태조건제취진원현춘옥미충식상관생태인자，응용주성분분석화모호종합평개법，대진원현춘옥미충식구적생태괄의도진행료종합평개。결과표명：진원현옥미충식괄의도종합평개지수위0.68，속우춘옥미괄의충식구；각생태인자대속도분석표명，토양유효갑화토양유궤질대속도최소，분별위0.39화0.52；＞10℃적온인자대속도접근1.0，체도우괄치。진원현춘옥미충식구구유명현적열량우세；유효갑화유궤질시진원현옥미충식적한제성생태인자，량인자적개선장유조우진원현춘옥미산량적제고화경제효익적제승。도1，표3，삼19。
Taking Zhenyuan county of Gansu province as a study area and considering China 's ecological conditions for optimal maize planting, local ecological factors were selected , by using Principal Component Analysis (PCA) and fuzzy methods, to have an overall evaluation for ecological adaptation of spring maize planting in this area.The results showed that the overall evaluation index was 0.68 , meaning that the area was suitable for spring maize planting.An analysis for ecological factors showed that , the membership degrees of soil available potassium and soil organic matter content were 0.39 and 0.52 , respectively;the membership degree of >10℃accumula-ted temperature was close 1.0, with an optimal value for spring maize planting.Therefore, the analysis indicated that Zhenyuan county of Gansu province was an optimal area for spring maize planting in terms of temperature;and the restrained ecological factors for spring maize planting in this area were soil available potassium and soil organic matter content ;thus the improvement of soil potassium and or-ganic matter content would increase maize yield and economic benefit locally.