基于^31P-NMR的延边州东部两市苹果梨园土壤磷化合物变化  

Change of Soil Phosphorus Compound of Apple-pear Orchards in the East of Two Cities in Korean Autonomous Prefecture of Yanbian

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作  者:秦博[1] 黄金风[1] 徐同良 谢修鸿[2] 梁运江[1] QIN Bo1,HUANG Jinfeng1,XU Tongliang1,XIE Xiuhong2,LIANG Yunjiang1 ( 1. College of Agricuhure, Yanbian University, Yanji 133002, Jiling, China; 2. College of Landscape Architecture,Changchun University, Changchun 130022, China)

机构地区:[1]延边大学农学院,吉林延吉133002 [2]长春大学园林学院,长春130022

出  处:《实验室研究与探索》2017年第5期17-20,共4页Laboratory Research and Exploration

基  金:国家自然科学基金项目(31460117); 延边大学2016年创新创业训练计划项目(ydbksky2016114)

摘  要:针对延边州东部和龙市和珲春市苹果梨园土壤,分别选取剖面点并进行挖掘,根据土壤物理状态划分土壤自然发生层,分层采集土壤样品,采用^31P-NMR核磁共振波谱法对果园不同土层土壤磷化合物变化趋势进行研究。结果显示:和龙、珲春两市苹果梨园土壤磷化合物组成均含有正磷酸盐、正酸磷单酯和焦磷酸盐,且正磷酸盐〉正酸磷单酯〉焦磷酸盐;与珲春苹果梨园相比,和龙苹果梨园的A层和AB层土壤含有磷酸二酯。随着土层深度增加,正磷酸盐所占磷化和物的比例总体呈升高趋势,两地最深层土壤的正磷酸盐比例均高达80%以上;与正磷酸盐相反,随着土层深度增加磷酸单酯所占磷化合物的比例呈减小的趋势。两地苹果梨园土壤磷化合物中,焦磷酸盐所占比例最大的土层均为AB层。磷酸单酯在和龙苹果梨园土壤中的丰富度明显高于珲春苹果梨园土壤。Aiming at soil in apple-pear orchard of Hunchun city and Helong city in the east of Korean Autonomous Prefecture of Yanbian of Jilin Province,the authors mined soil profile in apple-pear orchard,collected soil samples from different soil genetic horizon according to soil properties. We studied the change trend of phosphorus compound in different horizons of orchard soil by ^31P nuclear magnetic resonance spectroscopy(NMR). The results indicated that phosphorus compounds of orchard soil of Hunchun and Helong were composed of orthophosphate,orthophosphate monoester and pyrophosphate(orthophosphate 〉orthophosphate monoester 〉pyrophosphate). Compared with applepear orchard of Hunchun,the horizons of A and AB contained orthophosphate diester. With increasing of depth of soil horizon,the percentage of orthophosphate of phosphorus compound was increased as well. The percentage of orthophosphate was more than 80% in the deepest soil of the two orchards. In contrast with orthophosphate,by the increase on depth of soil horizon,the percentage of orthophosphate monoester to phosphorus compound reduced. The soil horizon with the most percentage of pyrophosphate was AB horizon in soil of the two apple-pear orchards in Hunchun and Helong. The abundance of orthophosphate monoester in soil of apple-pear orchard of Helong was significantly higher than that in Hunchun.

关 键 词:苹果梨园 磷化合物 ^31P核磁共振(^31P-NMR)波谱法 

分 类 号:S153.6[农业科学—土壤学;农业科学—农业基础科学]

 

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