吉林省延边州湿地土壤全氮空间分布及驱动力分析  

Spatial Distribution and Driving Forces of Total Nitrogen in Wetland Soil in Yanbian Prefecture,Jilin Province

作　　者：宗瑾 金日[1,2] 金雪梅 朱卫红[1,2] 袁林[1,2] 王镜植 ZONG Jin;JIN Ri;JIN Xuemei;ZHU Weihong;YUAN Lin;WANG Jingzhi(School of Geography and Ocean Sciences,Yanbian University,Hunchun,Jilin 133002;Changbai Mountain Wetland Ecosystem Function and Ecological Security Key Laboratory of Jilin Province,Hunchun,Jilin 133002)

机构地区：[1]延边大学地理与海洋科学学院,吉林珲春133002 [2]长白山湿地生态系统功能与生态安全吉林省重点实验室,吉林长春133002

出　　处：《北方园艺》2023年第6期62-70,共9页Northern Horticulture

基　　金：国家自然科学基金重点基金资助项目(41830643);国家科技基础资源调查资助项目(2019FY101703);吉林省教育厅科学技术研究资助项目(JJKH20210567KJ);延边大学科技发展计划资助项目(延大科合字[2019]第2号)。

摘　　要：以吉林省延边州草甸沼泽湿地、河流湿地、林下沼泽湿地和水库人工湿地的土壤全氮(TN)为试材,采用半方差函数、普通克里金插值和因子探测器的方法,研究了吉林省延边州草甸沼泽湿地、河流湿地、林下沼泽湿地和水库人工湿地的土壤TN空间异质性以及驱动力,以期为评价湿地土壤肥力和土壤质量的重要指标提供参考依据。结果表明:延边州林下沼泽湿地土壤TN含量最高;不同湿地类型中,除河流湿地外,其它湿地类型中汪清县的土壤TN含量均呈现最高值;在空间相关性中,河流湿地土壤TN含量呈现出中等空间相关性,其它类型湿地呈现强烈空间相关性;但草甸沼泽湿地和水库人工湿地具有较大的空间自相关范围;草甸沼泽湿地和水库人工湿地改变土壤TN含量的主要驱动力因子是海拔,其它类型湿地是人口密度。通过对延边州的不同湿地类型全氮含量研究,得出湿地全氮分布有着显著差异,该研究结果可为湿地生态系统管理、保护和治理提供重要基础。The soil total nitrogen(TN)in meadow swamp wetlands,river wetlands,forested swamp wetlands and reservoir artificial wetlands in Yanbian Prefecture,Jilin Province was used as test materials,and soil TN spatial heterogeneity and driving forces in meadow swamp wetlands,river wetlands,forested swamp wetlands and reservoir artificial wetlands in Yanbian Prefecture,Jilin Province were studied by using semi-covariance function,ordinary kriging interpolation and factor detector,in order to provide reference for evaluating wetland soil fertility and soil TN heterogeneity and driving forces in wetlands.The results showed that the soil TN content of forest swamp wetlands in Yanbian Prefecture was the highest;among the different wetland types,except for river wetlands,the soil TN content in Wangqing county showed the highest value;among the spatial correlations,the soil TN content of river wetlands showed moderate spatial correlations,while other types of wetlands showed strong spatial correlations;however,meadow swamp wetlands and reservoir artificial wetlands had a larger spatial self.The main driving factor for changing soil TN content in meadow swamp wetlands and reservoir man-made wetlands was elevation,while in the rest of the wetland types it was population density.The results of this study provided an important basis for the management,protection and governance of wetland ecosystems.

关 键 词：湿地 土壤全氮 空间异质性 空间分布 驱动力分析 地统计学 

分 类 号：X53[环境科学与工程—环境工程]