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选择艾比湖湿地为研究区域,针对土壤中的氮进行定量测定,讨论研究区土壤全氮的含量、密度和储量及其分布特征。结果表明:艾比湖7种不同植被覆盖类型的土壤全氮含量整体偏低;土壤全氮含量均随土深度的增加而依次减少;土壤全氮含量的差异主要表现在表土层(0~20 cm)。全氮蓄积量排序依次为盐化草甸>灌木荒漠>小乔木荒漠>寒湿性针叶林>干涸湖底>荒漠河岸林>盐生灌丛。七种不同类型土壤类型的全氮总储量为4691903 kg。上述结果可为当地的环境保护及生态修复提供科学参考。
The Aibi Lake wetland was chosen as the research area, the content of nitrogen in the soil was quantitatively determined, and the content, density, reserves and distribution of soil total nitrogen in the study area were discussed. The results showed that the soil total nitrogen content in the seven vegetation types of Lake Aibi was lower than that in other vegetation types. The total nitrogen content decreased with the increase of soil depth. The difference of soil total nitrogen content was mainly observed in the topsoil (0-20 cm). The order of total nitrogen accumulation was salinized meadow> shrub desert> small arbor desert> cold-temperate coniferous forest> dry lake bottom> desert riparian forest> saline scrub. The total nitrogen storage for the seven different soil types was 469,1903 kg. The above results can provide scientific reference for local environmental protection and ecological restoration.