郑州市不同土地利用类型土壤有机碳与养分含量特征

Characteristics of soil organic carbon and nutrient contents in different land use types in Zhengzhou City

选择郑州市常见的27种植物,对不同植被类型下土壤有机碳与土壤养分进行了研究。结果表明:林地、绿地、果园、耕地、设施用地土壤平均有机碳含量分别为1.770%、0.660%、0.829%、0.591%、0.830%,土壤平均全氮含量分别为0.118%、0.056%、0.082%、0.072%、0.071%,土壤平均全磷含量分别为0.344%、0.071%、0.080%、0.070%、0.113%,土壤平均全钾含量分别为1.829%、1.809%、1.854%、1.824%、1.782%。根据土壤有机碳、全氮、全磷与全钾的聚类分析结果,油松、圆柏、栎树林下土壤肥力较高,草莓、黄瓜、桃树、枇杷、石楠、悬铃木、龙柏、苹果、泡桐、女贞、葡萄、白蜡、小麦+花生、枣树、菊花、豆角下土壤肥力中等,刺槐、杨树、黄山栾、百合、小麦+玉米、早熟禾、小麦+谷子下土壤肥力较低。

Taking 27 kinds of common plants in Zhengzhou City as materials,the soil organic carbon and soil nutrients of different vegetation types were studied.The results showed that the average soil organic carbon content of woodland,green landscapes,orchard land,farmland and greenhouse land were 1.770%,0.660%,0.829%,0.591%,0.830%respectively;The average soil total nitrogen content of above vegetation types were 0.118%,0.056%,0.082%,0.072%,0.071%respectively;The average soil total phosphorus content of above vegetation types were 0.344%,0.071%,0.080%,0.070%,0.113%respectively;The average soil total potassium content of above vegetation types were 1.829%,1.809%,1.854%,1.824%,1.782%respectively.According to the results of cluster analysis,the soil fertility under Pinus tabulaeformis,Sabina chinensis and Quercus Linn were higher,followed by Fragaria ananassa,Cucumis sativus,Prunus persica,Eriobotrya japonica,Photinia serrulata,Platanus orientalis,Sabina chinensis,Malus pumila,Paulownia sieb,Ligustrum lucidum,Vitis vinifera,Fraxinus chinensis,Triticum aestivum＋Arachis duranensis,Ziziphus jujuba,Dendranthema morifolium,Phaseolus vulgaris;the soil fertility under Robinia pseudoacacia,Populus L.,Koelreuteria bipinnata Franchet,Lilium brownii,Triticum aestivum＋Zea mays,Poa nemoralis and Triticum aestivum＋Setaria italic were lower.