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您的检索式：作者名="Joe Magner"
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| 1 | Hydrologic Thresholds of Ecosystem Resiliency:Have Wetlands on the Anoka Sand Plain Changed over Time?显示文摘Wetlands have long been used as environmental indicators for changes in climate and land use because they are sensitive to hydrologic change;however,wetlands set in transmissive groundwater can be more resilient to climate and land use change.In Anoka County,Minnesota,USA,a monitoring network was established in 1997 and maintained by the Anoka Conservation District to the present day to assess wetland hydrologic response over time.We examined a combination of data including water level(stage)from these wetlands,precipitation from local gages,pan evaporation data,and historical land use,including a measure of runoff flashiness,using regression and k-mean analysis.Results did not detect any clear trends over a 25-year time period,though some p-values showed potential.A clear statistical trend in the measured hydrologic parameters would suggest exceedance beyond historical thresholds of natural hydrologic variation and alert the need to better protect wetlands and groundwater from anthropogenic stress.Study results may provide useful information to management and regulatory decisions for wetland systems set in sandy soils.This is particularly important for Anoka County because most wetlands are intrinsically connected to the surficial ASP(Anoka Sand Plain)Aquifer,which overlay vulnerable deeper aquifers used for domestic water supply. | Elizabeth Flage Joe Magner | 2023 | Journal of Environmental Science and Engineering(B)2023，12，2： | 0 |
| 2 | Cross River Watershed Hydrologic Adjustment: Pre- and Post-June 2012 Mega-storm显示文摘 | Joe Magner Lu Zhang | 2014 | Journal of Environmental Science and Engineering(B)2014，3，3： | 0 |
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