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Nutrients in northern Missouri streams 科技报告
报告编号: 70204407, 页数: 4, 2019
作者:  Krempa, Heather
收藏  |  浏览/下载:53/0  |  提交时间:2019/11/06
Temporal changes in nitrogen and phosphorus concentrations with comparisons to conservation practices and agricultural activities in the Lower Grand River, Missouri and Iowa, and selected watersheds, 1969–2015 科技报告
报告编号: 70188739, , 2017
作者:  Krempa, Heather M. hkrempa@usgs.gov;  Flickinger, Allison K. aflickinger@usgs.gov
收藏  |  浏览/下载:26/0  |  提交时间:2019/11/06