Conservation significantly improves wetland conditions: evaluation of playa wetlands in different conservation status

Hong Zhang, Zhenghong Tang, Andy Bishop, Jeff Drahota, Ted LaGrange, Dana Varner

Research output: Contribution to journalArticle

Abstract

This study assessed the conditions of wetland hydrology, hydrophyte and soil under different state and federal conservation programs, and then identified the restorable potential of conserved playas. The distribution of hydrology and hydrophyte were geospatially examined through annual tracking the quantity and quality of wetlands on historical hydric soil footprints under different conservation programs in the Rainwater Basin in Nebraska, USA during 2004–2015. The results show that the historical hydric soil footprints with the conservation programs had significantly better performance in ponded water and hydrophyte than non-conserved wetlands. The yearly average of ponded water areas within footprints varies at 12.59% for the Waterfowl Production Areas (WPAs), 14.78% for Wildlife Management Areas (WMAs), 27.37% for Wetlands Reserve Program’s conservation easements (WRPs), and 1.86% for non-conserved wetlands, respectively. The yearly average of hydrophyte plant community coverage within footprints reaches at 77.51% for WPAs, 79.28% for WMAs, and 66.53% for WRPs, and 8.82% for non-conserved hydric footprints. Within conserved lands, Massie/Water soil series demonstrated the prominent ability to hold ponding water, especially in the ponded footprints with higher ponding frequency. Nevertheless, the proportion of Fillmore, Rusco or Butler soil series roughly decreased when the ponding water frequency increased. The areas, with high likelihood to be restored, are the places between annual ponding/hydrophyte covered areas and 11 years’ maximized ponding/hydrophyte areas.

Original languageEnglish (US)
Pages (from-to)85-102
Number of pages18
JournalWetlands Ecology and Management
Volume28
Issue number1
DOIs
StatePublished - Feb 1 2020

Keywords

  • Conservation programs
  • Historical hydric soil footprints
  • Hydrophyte
  • Playa wetland
  • Ponding
  • Rainwater basin

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science
  • Management, Monitoring, Policy and Law

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