鄱阳湖生态经济区植被固碳研究

Study on Carbon Sequestration of Vegetation in Eco-Economic Zone of Poyang Lake

对鄱阳湖生态经济区的植被固碳研究表明,该区森林碳储量364.3×106 t,草地植被固碳量90.65×104 t,水稻固碳量18.51×106 t,其他农作物固碳量20.64×106 t;鄱阳湖湿地固定CO2量为609 120 t/a。因此,建议对现有森林进行科学抚育与合理采伐,进而形成合理的树种结构、林龄结构与林层结构,提高森林生态系统的稳定性与碳汇能力;运用保护性耕作、灌溉节水和合理施肥技术,培育新型氮素高效利用的农作物新品种,提高光合作用率,从而提高该区农作物的固碳能力;进行合理放牧和草地资源生态监测,严格控制养殖数量和规模,实现草地生态系统减少与固定CO2的重要功能;严禁围湖造田,健全水域环境监测网络,保护湿地生态功能。

According to the study on carbon sequestration of vegetation in Eco-economic Zone of Poyang Lake,the total carbon storage of forest is 364.3 x 106（t）,the carbon sequestration of grassland vegetation is 90.65 x 104（t）,the carbon sequestration of rice is 18.51 x 106（t）,the carbon sequestration of other crops is 20.64 x 106（t）.The total CO2 storage of wetland is 609120t/a in Poyang Lake.There were some suggestions given,includes： For existing forest,tending wood scientifically and felling reasonably to form rational tree species structure,age structure and Lin layer structure,to improve the stability of forest ecosystem and carbon absorbing ability.Use the conservation tillage,water-saving irrigation and fertilization techniques,and to cultivate the new nitrogen efficient utilization of agricultural varieties,to improve photosynthesis and enhance carbon sequestration ability of local crops.Graze and ecological monitor the grassland resources rationally,control the size and number of breeding strictly,so as to achieve the goal of the grassland ecosystem in reducing and CO2 fixation.Prohibit silted up,perfect environment monitoring network,and also protect water wetland ecological functions.