修建后的临汾汾河公园土壤养分评价

The Evaluation on Soil Nutrient of Linfen Fen River Park

以临汾市新建的湿地汾河公园为研究对象,通过对30个样点的园林土壤进行养分分析,以3个农田样点为对照,从有机质、碱解氮、速效磷和速效钾四个土壤养分指标分析土壤养分含量状况,对其园林土壤质量作出客观评价.结果表明汾河公园的建造显著降低了汾河沿岸的土壤的有机质、碱解氮、速效磷和速效钾的含量,现有机质和速效钾含量处于B级,属于中等水平,而碱解氮和速效磷含量仍为C级,处于匮乏的状态.人为调控土壤肥力有利于公园植被恢复及生态环境的平衡发展.

Soil samples are collected from thirey sites of the newly bulit fenriver wetland park in Linfen. For assessmet of soil quality, the conlents of soil nutrients, including organic matter, alkali-hydrolyzable nitrogen, available phosphorus and available potassium are analysed, and compared with three farmland samples. The results show that due to the construction of the park the contents of four soil nutrients decreased. The contents of organic matter and available potassium is middle level, and the contents of alkali-hydroly zable nitrogen and available phosphorus is poor state. Therefore, artifical regulation of soil fertility is beneficial to the vegetation restoration and balanced development of ecological environment.