泥炭藓采摘对鄂西南泥炭藓湿地水质的影响
Effects of Sphagnum Harvesting on Water Quality of Sphagnum Wetland,Southwestern of Hubei Province
赵媛博 1高娅菲 1靳清清 1刘星雨 1孙嘉悦 1徐玲 1夏煜轩 1周文昌 2张强 1吴林1
作者信息
- 1. 生物资源保护与利用湖北省重点实验室,湖北 恩施 445000;湖北民族大学,湖北 恩施 445000
- 2. 湖北省林业科学研究院,湖北 武汉 430075
- 折叠
摘要
为评估泥炭藓采摘是否对泥炭藓湿地水质有影响,本研究以鄂西南亚高山泥炭藓湿地为研究对象,选择 15 个水质指标,对比分析未采摘泥炭藓湿地与采摘泥炭藓湿地水质指标差异,采用综合水质指数法(WQI)评估泥炭藓采摘对湿地水质的影响.结果表明:1)相比未采摘泥炭藓湿地,降雨前采摘泥炭藓湿地内CODMn、DOC显著增加 146.95％、144.06％(P<0.05),EC和TDS显著增加59.52％、63.68％(P<0.05);降雨后采摘泥炭藓湿地内CODMn显著增加34.53％(P<0.05).2)采摘泥炭藓湿地内WQI低于未采摘泥炭藓湿地,水质由Ⅲ类变为Ⅳ类;湿地出水口WQI均高于湿地内,泥炭藓对水质有明显净化作用.3)采摘泥炭藓后导致水质污染的主要来源是可溶性离子和有机物.因此,为更好地保护泥炭藓湿地和水源地,应加大科普宣传且禁止采摘湿地泥炭藓.
Abstract
To assess whether Sphagnum harvesting has an impact on water quality,15 water quality indicators were selected to compare and analyze the differences in water quality indicators between unharvested Sphagnum wetlands and harvested Sphagnum wetlands in southwestern of Hubei Province,and the impacts of Sphagnum harvesting on wetland water quality were evaluated by using the comprehensive Water Quality Index(WQI)method.The results showed that:1)compared with the unharvested Sphagnum wetland,CODMN and DOC in the harvested Sphagnum wetland increased significantly by 146.95％and 144.06％(P<0.05),and EC and TDS increased significantly by 59.52％and 63.68％,respectively before rainfall;and CODMN in the harvested Sphagnum wetland increased significantly by 34.53％after rainfall(P<0.05).2)The WQI in the harvested Sphagnum wetland was lower than that in the unharvested Sphagnum wetland,and the water quality was changed from Class Ⅲ in unharvested Sphagnum wetlands to Class Ⅳ in harvested Sphagnum wetlands;the WQI at the outlet of the wetland was higher than that in the wetland,and the Sphagnum had an obvious purifying effect on the water quality.3)The main sources of water quality pollution due to Sphagnum harvesting were soluble ions and organic matter.Therefore,in order to better protect the Sphagnum wetland and water source,more publicity should be given to popular science and harvesting of wetland Sphagnum moss should be prohibited.
关键词
泥炭藓/沼泽地/水质/污染物Key words
Sphagnum/Wetland/Water quality/Pollutant引用本文复制引用
出版年
2024
NETL
NSTL
万方数据