马莲河生态修复区生态效益分析及治理经验

Eco-Efficiency Analysis and Management Experience About Malian River Ecological Restoration Area

在马莲河生态修复项目区共布设植被监测典型样区12个,对2004—2006年项目实施后的生态效益进行了分析。结果表明:生态修复区植被覆盖度由项目实施前的38.4%提高到64.5%;植物种类、乔木郁闭度、植株的年生长高度、年单位面积产草量均有所增加;林草措施固定CO2、生产O2、吸收SO2、阻滞降尘的量分别为309.45、225.06、233.6、17.63 t,生态环境效益显著。

There are 12 typical sample regions of vegetation monitoring arranged in Malian River ecological restoration project area. The ecological benefits were analysed after the implementation of the project from 2004 to 2006. The results show that the vegetation coverage of the ecological res-toration area is increased from 38.4% to 64.5% ; plant species, canopy density of arbor, years growth height of plant, per unit area yield of grass are increased ; the amount of fixed CO2 , produced 02 , absorbed SO2 , blocked dust by grass measures are 309.45, 225.06, 233.6 and 17.63 t respectively. The project has achieved a good eco-environmental benefits.