期刊
ECOLOGICAL ENGINEERING
卷 73, 期 -, 页码 760-769出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ecoleng.2014.09.099
关键词
Common reed; Water table management; Paper production; Freshwater diversion; Seawater irrigation; Wetland
资金
- Ministry of Land and Resources program: Special foundation for scientific research on public causes [201111023]
- Marine Safeguard Project [GZH201200503]
- National Natural Science Foundation of China [4087216, 41406082, 41240022]
- China Geological Survey [1212010611402]
- Sintrun 0o-Danish Centre for Education and Research (SDC)
The largest Phragmites reed field in the world, with a historical area of approximately 1000 km(2), is located in the Liaohe Delta in northeastern China. The Phragmites wetlands are extensively managed to maximize the production of reed biomass for the paper industry. Based on satellite remote sensing we estimated that the total area of the Phragmites wetlands has decreased from 857 km(2) in 2003 to 786 km(2) in 2009 to accommodate oil field infrastructure and societal developments. However, at the same time the production of Phragmites biomass used for the production of reed pulp has increased to 400,000 metric tons per year. This paper describes the great efforts that have been made to increase the Phragmites yields for the paper industry, including (1) diversion of freshwater from rivers to the Phragmites fields, (2) management of the water table, (3) harvesting and burning for pest control, and (4) seawater irrigation to rehabilitate Phragmites fields infested with weeds. The paper industry has facilitated the conservation of the Phragmites wetlands and their associated ecosystem services. Besides being a source for fiber, the wetlands provide important habitat for wildlife, sequester carbon, and create job opportunities and economic income for the local people. (C) 2014 Elsevier B.V. All rights reserved.
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