%0 Journal Article %T 西安咸阳国际机场绿地土壤养分分析与评价<br>Analysis and Evaluation of Green Land Soil Nutrients in Xi’an Xianyang International Airport %A 赵军 %A 尚杰 %A 耿荣 %A 张帆 %A 林云 %A 耿增超 %J 西北林学院学报 %D 2015 %R doi:10.3969/j.issn.1001-7461.2015.01.44 %X 采用野外调查及室内分析的方法，对西安咸阳国际机场4个主要功能区绿地土壤的有机质、pH值、全钾、全磷、全氮、速效钾、有效磷、碱解氮8项养分指标进行了测定分析，并运用模糊评价方法进行了综合评价。结果表明：8项养分指标的权重系数分别为有机质9.79%、pH9.32%、全钾17.48%、全磷8.43%、全氮14.13%、速效钾12.99%、有效磷14.20%、碱解氮13.65%；西安咸阳国际机场的4个功能区的绿地土壤肥力综合性指标值（IFI）分别为东进场0.410 2、一号桥0.493 7、广场区0.478 9、西进场0.509 4，均处于3级水平。总体来看西安咸阳国际机场绿地土壤的养分含量处于中等水平，存在的主要问题是有机质含量严重缺乏、全氮和碱解氮含量偏低、pH值偏高等。建议应在使用化肥的同时增加有机肥的施用量，以实现机场绿地土壤的养分平衡。<br>Field investigation and laboratory analysis of soil nutrients were carried out with eight indexes in the soils of the green lands in four major functional areas of Xi’an-Xianyang International Airport. The indexes included organic matter, pH, total potassium, total phosphorus, total nitrogen, available potassium, available phosphorus and alkali-hydrolyzable nitrogen. A comprehensive evaluation on soil nutrients was conducted with the method of fuzzy evaluation. The results showed that the weight coefficients of eight indicators of nutrients were organic matter 9.79%, pH 9.32%, total K 17.48%, total P 8.43%, total nitrogen 14.13%, readily available K 12.99%, available P 14.20%, and available N 13.65%, respectively. Integrated soil fertility index (IFI) of four functional areas of Xi’an-Xianyang International Airport were east approach 0.410 2, No. 1 Bridge 0.493 7, plaza area 0.478 9, west approach 0.509 4, and all of these were in level III. Overally, soil nutrients belonged to medium levels, problems were the sever shortage of organic matter, low levels of total and available N, and higher pH value than normal soil. It was suggested that while applying inorganic fertilizers, the application of organic fertilizer must be increased to realize the balance of soil nutrients %K 绿地 %K 土壤养分 %K 西安咸阳机场 %K 模糊数学 %K 综合评价< %K br> %K green land %K soil nutrient %K Xi’an-Xianyang International Airport %K Fuzzy mathematics %K comprehensive evaluation %U http://xblxb.paperopen.com/oa/darticle.aspx?type=view&id=201501044