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Lowland Australian rivers and floodplains have been affected by agriculture and flow regulation for more than a century. Our capacity to understand the complex causes of ecosystem change is limited by the lack of historical records of ecosystem condition. Records of change over this critical period are available through analysis of sedimentary records. These provide benchmarks of the range of natural...
Rapid urbanization has resulted in a series of sequential effects on a desert stream in the American Southwest. Lower Las Vegas Wash was a dry wash characterized by infrequent flood deposition when Las Vegas, Nevada was established in 1905. Wastewater effluent was discharged into the wash in low volumes for over 3 decades. Wastewater volumes increased commensurably with accelerated population growth...
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