【摘要】 根据改进的内梅罗综合指数法,选择pH值、有机质、碱解氮、有效磷、速效钾5项因子,对京珠高速长沙段和郴州段两旁受高速面源污染的土壤肥力进行了综合评价。结果表明:郴州地段的坡顶、坡中、底泥的土壤综合肥力属一般,坡底土壤综合肥力属贫瘠,长沙地段的综合肥力属一般。依据单项指标分析,郴州地段坡顶有机质较丰富,底泥的碱解氮极度缺乏,而坡底的有机质、有效磷则极度匮乏,而各地点的速效钾基本处于中等肥力状态;长沙各地段的有机质处于中到中低肥力、碱解氮和速效钾处于中等到中高之间,有效磷除了坡中属极度匮乏外其他地点处于中到中高肥力。更多还原

【Abstract】 The fertility index of soil polluted by non-point source in Chenzhou and Changsha section of Jing-Zhu highway was appraised with improvement Nemero Index by selected pH,soil organic matter,available nitrogen,available phosphorus,available potasium.The results showed that the Chenzhou site soil composite fertility in slope bottom was poor but fertilizer in slope top,middle and sediment were general,Changsha site soil composite fertility was general.The soil in Chenzhou site of slope top organic matter was in abundance but available phosphorus was general poor,the available nitrogen in bottom mud site was very poor;Furthermore,the available nitrogen and organic matter in slope bottom site were very poor;the available potasium in all of that was general.Changsha site soil organic matter had between medium and low level,available nitrogen and available potasium havd between medium and high level,available phosphorus have between medium and high level besides slope middle.更多还原