焉耆盆地绿洲区承压水硝态氮含量空间变异研究
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摘要
基于GIS与地统计学原理,使用Arc GIS地统计分析模块研究焉耆盆地绿洲区承压水硝态氮的空间变异情况。结果表明:灌溉水硝态氮数据服从对数正态分布,块金效应值为1.16,变程为0.198 km,空间相关性较弱;饮用水硝态氮数据服从对数正态分布,块金值为0.26,变程达1.58 km,空间相关性较强;承压水硝态氮数据同样服从对数正态分布,块金效应为0.53,变程为0.138 km,空间相关性中等;采用克里格插值方法绘制了承压水硝态氮含量分布图,可更直观地了解研究区地下水硝态氮分布。
This paper used Arc GIS geostatistical analysis module to study spatial variation of confined nitrate in Yanqi basin oasis area based on the geostatistics principle and GIS.The results showed that the irrigation water nitrate data obeys lognormal distribution,the nugget effect value is 1.16,the variation range is 0.198 km,and the spatial correlation is weak.The nitrate nitrogen data of drinking water obeys lognormal distribution,the nugget value is 0.26,the variation range is 1.58 km,and the spatial correlation is relatively strong.The nitrate nitrogen data also obeys lognormal distribution,the nugget effectvalue is 0.53,the variation range is 0.138 km,and the spatial correlation is moderate.The distribution of nitrate nitrogen content in confined water was plotted by using the Kriging interpolation method,which can provide more intuitive understanding of confined water nitrate nitrogen distribution.
This paper used Arc GIS geostatistical analysis module to study spatial variation of confined nitrate in Yanqi basin oasis area based on the geostatistics principle and GIS.The results showed that the irrigation water nitrate data obeys lognormal distribution,the nugget effect value is 1.16,the variation range is 0.198 km,and the spatial correlation is weak.The nitrate nitrogen data of drinking water obeys lognormal distribution,the nugget value is 0.26,the variation range is 1.58 km,and the spatial correlation is relatively strong.The nitrate nitrogen data also obeys lognormal distribution,the nugget effectvalue is 0.53,the variation range is 0.138 km,and the spatial correlation is moderate.The distribution of nitrate nitrogen content in confined water was plotted by using the Kriging interpolation method,which can provide more intuitive understanding of confined water nitrate nitrogen distribution.
引文
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[2]闫雅妮,马腾,张俊文,等.地下水与地表水相互作用下硝态氮的迁移转化实验[J].地球科学,2017,42(5):783-792.
[3]李祯,史海滨,李仙岳,等.农田硝态氮淋溶规律对不同水氮运筹模式的响应[J].水土保持学报,2017,31(1):310-317.
[4]赵秀春,王成见,孟春霞.青岛市地下水中硝酸盐氮的污染及其影响因素分析[J].水文,2008,28(5):94-96.
[5]陈云增,陈志凡,马建华,等.沙颍河流域典型癌病高发区土壤硝态氮对地下水和蔬菜硝酸盐积累的影响[J].环境科学学报,2016,36(3):990-998.
[6]魏光辉,杨鹏年.新疆博斯腾湖1997~2010年水质及硝态氮变化研究[J].水电能源科学,2016,34(5):42-45+54.
[7]牛世伟,宫亮,蔡广兴,等.辽河流域典型种植区地下水硝态氮含量特征分析[J].河南农业科学,2015,44(8):204-208.
[8]王喜峰,贾仰文.海河流域平原区地下水水质评价及硝态氮污染研究[J].地下水,2015,37(6):31-33.
[9]庞会从,刘福亮,付海燕,等.2009-2014年河北平原浅层地下水硝态氮特征及其来源[J].环境工程学报,2015,9(10):4766-4772.
[10]刘白杨,尹黎明,刘新亮,等.金井流域景观格局对地下水硝态氮时空分布的影响[J].农业环境科学学报,2017,36(4):753-760.
[11]王庆锁,顾颖,孙东宝.巢湖流域地下水硝态氮含量空间分布和季节变化格局[J].生态学报,2014,34(15):4372-4379.
[12]毕晶晶,彭昌盛,胥慧真.地下水硝酸盐污染与治理研究进展综述[J].地下水,2010,32(1):97-102.
[13]王政权.地统计学及在生态学中的应用[M].北京:科学出版社,1999.
[14]晏伟.TIN到GRID的动态转换——基于四叉树的多分辨率显示及实时渲染[D].西安:西安科技大学,2012.
[15]王建,白世彪,陈晔.Surfer8地理信息制图[M].北京:中国地图出版社,2004.
[16]施周,闫杭召,毕晨,等.基于地统计学——克里格插值法的村镇地表水体水质监测[J].环境工程学报,2017,11(4):2607-2613.