武钢厂区绿地景观类型空间结构及滞尘效应

应用景观生态学原理和对比分析方法分别对武钢厂区绿地景观类型的空间结构及滞尘效应进行了研究。结果表明，武钢厂区绿地斑块数目多，破碎化指数高，体现了工业区见缝插绿的绿化特点，以道路绿带为骨架，成片防护林和观赏绿地为中心，将各分厂绿地连接成四大绿化区域的武钢厂区绿地系统已初步形成，其滞尘效应主要表现为对交流污染物及二次飞扬的阻滞作用，以乔木为主的防护林斑块平均面积大，滞尘效果好，滞尘率达38.9%-46.1%，但优势度不高，专类园和观赏草坪斑块植物种类丰富，景观效果好，但滞尘效果较差，道路绿带优势度和破碎化指数最高，构成了厂区绿色廊道网络，并在阻滞交通污染中起着重要作用，其中多行复层绿带的滞尘率（46.2%-60.8%)比单行乔木绿带的滞尘率（14.8%-39.2%)高，但道路绿带仍不完整，多行复层绿带的比例不高。

The Spatial Structures and the Dust Retention Effects of Green-land Types in the Workshop District of Wuhan Iron and Steel Company

The landscape green lands has an important role on maintaining the balance of urban or industrial district ecosystem, especially, smoothing away air pollutant and improving air quality of air pollution area. However, the ecological functions of green lands has a closed relation with the landscape types and the spatial structures of green lands when the percentage of green land coverage is less than 40%. In this paper, the green lands in the workshop district of Wuhan Iron and Steel Company are classifi...