urban vegetation meaning in Chinese

都市植被

A comparative study of extracting urban vegetation information by vegetation indices from thematic mapper images
植被指数在城市绿地信息提取中的比较研究
In this study , two methods were used to estimate the urban vegetation coverage from remote sensing data : automatic classification of merged tm images and spot images ; interpretation of mixed pixels of tm images
并对ikonos影像在图像增强的基础上采用系统抽样和目视勾绘植被信息的方法取得研究区的植被覆盖率数据，作为评价融合分类和分解效果的依据。
The physical and chemical properties of the soil were analyzed , including nutrient change and routine index of acidity and alkalinity , in addition , compared them with natural soil and studied their variation and correlation . the results as follows : the soil bulk density of harbin urban vegetation is higher , total porosity and field capacity are small
对其土壤的理化性质和养分状况等指标进行分析，并与松花江地区自然黑土进行了对比，研究其变化的趋势和养分相关性。结果表明：哈尔滨城市绿地土壤容重较大，孔隙度和田间持水量少，有机质缺乏，养分含量较低，相关性差，土壤ph值呈中性，肥力水平低。