ISSN : 2287-8327
We studied the optimal ranges of water and soil characteristics for wetland plants, particularlyScirpus tabernaemontani (softstem bulrush) and Typha latifolia (broadleaf cattail), which are dominant species with potential for restoration of Korean wetlands. We observed vegetation in S. tabernaemontani and T. latifolia depth (WD), temperature (WT), conductivity (WC), and concentration of several ions (NO3--N, Ca2+, Na+, Mg2+, and K+), and characteristics of soil environments such as soil texture, organic matter (loss on ignition, LOI), conductivity, and pH. The S. tabernaemontani comunity was accompanied by Zizania latifolia (Manchurian wildrice), Persicaria thunbergii (Korean persicary), Actinostemma lobatum (lobed actinostemma), and Beck-mania syzigachne (American slough grass), while the T. latifolia community was accompanied by P. thunbergii, T. angustifolia (narrowleaf cattail), and (wild soybean). We defined the optimal range for distribution (ORD) as the range that each plant was crowded. The optimal range of water characteristics for the S. tabernaemontani community was a WD 10 ∼50 cm, WT 24.0∼32.0℃, WC 10 ∼500 μS/cm, NO3--N 0∼60 ppb, K+0.00∼1.50 ppm, Ca2+7.50∼17.50 ppm, Na+2.50∼12.50 ppm, and Mg2+3.0 ∼7.00 ppm. In addition, the optimal range of soil characteristics for the S. tabernaemontaniand loamy sand, LOI 8.0∼16.0%, pH 5.25∼6.25, and conductivity 10∼70 μS/cm. The optimal range of water characteristics for the T. latifolia comunity was a WD 10 ∼30 cm, WT 22.5∼27.5℃, WC 100∼400 μS/cm, NO3--N 0∼60 ppb, K+0.00∼1.50 ppm, Ca2+0.00∼17.50 ppm, Na+0.0 ∼12.50 ppm, and Mg2+0.00∼5.00 ppm, T. latifolia comunity was a soil texture of loam, sandy loam, and silty loam, LOI 3.0∼9.0%, pH 5.25∼7.25, and conductivity 0∼70 μS/cm.
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