摘要
湿地生态系统是陆地上重要的碳库,其碳储量和排放通量的变化对全球碳循环和气候变化起着重要作用。湿地碳库的变化受到诸多因素的影响,其中土地利用/覆盖变化(LUCC)是影响湿地碳库的主要因素之一。研究表明,土地利用/覆盖变化通过影响湿地植被覆盖状况、土壤湿度、氧化还原电位、微生物活性等方面,影响着湿地的碳储存与碳排放。湿地垦殖后大量的碳被释放出来,湿地的碳汇和碳源功能发生了变化。
Wetland ecosystem is an important carbon pool on the earth.The changes of carbon stocks and emission play an important role in carbon cycle and global climate change.The change of wetland carbon stocks is influenced by many factors,and land use/cover change（LUCC） is one of the major factors.The studies suggest that LUCC has affected the carbon stocks and emission by changing vegetation cover,soil moisture,redox potentials and microbial activity.A large quantity of carbon was released after cultivation of wetland,and the functions of carbon sink and carbon source were changed.
出处
《湿地科学与管理》
2011年第3期56-59,共4页
Wetland Science & Management
基金
福建省科技厅重点项目(2010Y0019)
国家自然科学基金项目(41071148)资助
