Response of Schoenoplectus acutus and Schoenoplectus californicus at different life-history stages to hydrologic regime

Wetlands
By: , and 

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Abstract

For wetland restoration success to be maximized, restoration managers need better information regarding how the frequency, depth, and duration of flooding affect soil chemistry and the survival, growth, and morphology of targeted plant species. In a greenhouse study we investigated the impact of four different flooding durations (0 %, 40 %, 60 %, and 100 %) on soil physicochemistry and the responses of seedlings and adults of two species of emergent wetland macrophytes commonly used in restoration efforts (Schoenoplectus acutus and Schoenoplectus californicus). The longest flooding duration, which created more reducing soil conditions, resulted in significantly reduced survival of S. acutus adults (34 ± 21 % survival) and complete mortality of seedlings of both species. Schoenoplectus californicus adults exhibited higher flooding tolerance, showing little impact of flooding on morphology and physiology. A companion field study indicated that S. californicus maintained stem strength regardless of flooding duration or depth, supporting the greenhouse study results. This information serves to improve our understanding of the ecological differences between these species as well as provide restoration managers with better guidelines for targeted elevation and hydrologic regimes for these species in order to enhance the success of restoration plantings and better predict restoration site development.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Response of Schoenoplectus acutus and Schoenoplectus californicus at different life-history stages to hydrologic regime
Series title Wetlands
DOI 10.1007/s13157-015-0713-8
Volume 36
Issue 1
Year Published 2016
Language English
Publisher Springer
Contributing office(s) National Wetlands Research Center
Description 10 p.
First page 37
Last page 46
Online Only (Y/N) N
Additional Online Files (Y/N) N