欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
以北京首云铁矿尾矿库采矿迹地利用覆盖客土加生态植被毯措施9年来恢复植被为研究对象，采用空间替代时间的方法，对不同恢复年限的植被生态系统碳密度空间格局进行研究，结果表明：随着恢复年限的增加，恢复植被地上部分碳密度呈现先降低再增加的趋势，恢复5年后植被地上部分碳密度趋于稳定；根系碳密度随着恢复年限与地上部分碳密度呈相同的趋势；枯落物碳密度随恢复年限呈增加趋势，恢复6年后碳密度变化趋于稳定；土壤有机碳密度随恢复年限呈现增加趋势，各层有机碳密度均显著低于周边自然植被土壤有机碳密度，周边植被土壤有机碳密度为恢复植被土壤碳密度的2．07～2．87倍，铁矿采矿迹地恢复过程中土壤碳库具有较大的碳汇潜能。
英文摘要：
Taking the method with space instead of time,we selected the measures of soil covering and ec-ological vegetation carpet for 9 years in Beijing Shouyun Iron Ore Mine.Spatial pattern of carbon density of vegetation with different restoration ages was studied.The results show that the carbon density of both aboveground and root decreased firstly and then increased soon after.It began to stabilize after the 5 th years.Root carbon density showed the same trend.Litters carbon density increased along with restoration ages until the 6 th year when it reached stabilization condition.Soil organic carbon of restoration vegetation system increased gradually,and soil carbon density of natural vegetation around was as 2.07 ~2.87 times as that of each level of restoration vegetation.There is great organic carbon sequestration potential in soil of iron ore mine.
同期刊论文项目
同项目期刊论文
期刊信息
位置：