Cho, J.-S.; Lee, J.-S., and Kim, J.-W., 2017. Distribution of Phragmites australis communities with different habitat salinity.
To analyze vegetation distribution and environmental factors, 22 regions containing Phragmites australis communities were selected from the west to south coastline of South Korea. In the studied soil environments, the average moisture content was 28.07%, soil salinity was 5.86 ppt, and total nitrogen was 1.02 mg/g. In water environments, the average dissolved oxygen was 9.04 mg/L, water salinity was 13.66 ppt, nitrate nitrogen (NOx–N) was 1.0712 mg/L, and ammonia nitrogen (NH4 –N) was 0.3790 mg/L. The correlation analysis of P. australis communities revealed that there was a relatively strong negative correlation between soil salinity and annual production (r = −0.584, N = 22). The ordination using canonical correspondence analysis (CCA) of edaphic factors and water quality factors showed that soil salinity, water salinity, and water nitrate–nitrogen play important roles in types of P. australis communities. It was separated as three coastal habitat Phragmites community types by cluster analysis and three Phragmites community types including brackish water group in both freshwater and seawater groups by CCA. The understanding of Phragmites distribution in three habitat types would help inform successful management.
