不同营林管理模式对复垦土壤养分和重金属含量的影响

Effect of different forest management modes on nutrient and heavy metal content in reclaimed soil

针对复垦土壤不同营林管理模式对其养分和重金属含量的影响,主要探讨了三种处理模式,即灌溉模式、施肥模式、施肥+灌溉模式。对比了三种处理模式分别对土壤养分含量、含水率以及重金属含量产生的影响。试验表明,降低重金属含量效果最佳的为施肥+灌溉模式,与其它处理模式相比,施肥+灌溉模式的全氮和有机质含量最高,而含水率最高的为灌溉处理模式。经过对试验段结果的综合分析可知,施肥+灌溉模式为最佳营林管理模式,并对复垦土壤的修复效果可达到最佳。

In view of the influence of different forest management modes on nutrient and heavy metal content,this experiment mainly discusses three treatment modes,namely,irrigation mode,fertilization mode,and compared the effects of three treatment modes on soil nutrient content,moisture content and heavy metal content.The experiment showed that the best effect of reducing the heavy metal content was the fertilization + irrigation mode.Compared with other treatment modes,the fertilization + irrigation mode had the highest total nitrogen and organic matter content,while the highest water content was the irrigation treatment mode.According to the comprehensive analysis of the results of this experimental section,fertilization + irrigation mode is the best forest management mode,and the restoration effect of reclaimed soil can be the best.