不同造林模式对渭北黄土高原林地土壤及土壤微生物化学计量的影响  

Effects of Afforestation Models on Soil and Microorganism Stoichiometric Characteristics

作　　者：王飞 吴胜义[1,2] WANG Fei;WU Sheng-yi(Northwest Academy of Forest Inventory and Planning,National Forestry and Grassland Administration,Xi'an,Shaanxi 710048;Key Laboratory of Ecological Hydrology and Disaster Prevention in Arid Regions National Forestry and Grassland Administration,Xi'an,Shaanxi 710048)

机构地区：[1]国家林业和草原局西北调查规划设计院 [2]旱区生态水文与灾害防治国家林业局重点实验室,西安710048

出　　处：《陕西林业科技》2020年第2期9-13,共5页Shaanxi Forest Science and Technology

摘　　要：本研究以农田为对照,通过对陕西永寿县农田、人工纯林(刺槐、侧柏和油松)和混交林(刺槐+油松、刺槐+侧柏及侧柏+油松)两种造林模式下土壤和土壤微生物碳、氮、磷及化学计量的分析,探究造林模式对土壤养分循环的影响。结果表明造林显著改变了土壤和土壤微生物碳、氮、磷含量及化学计量特征,其影响程度不仅受到造林模式的影响,同样受树种组成和树种特性的影响。In this study,we analyzed carbon,nitrogen,phosphorus and stoichiometry of soil and soil microbiome following afforestation on the cropland with single tree species(Robinia pseudoacacia,Pinus tabuliformis,Platycladus orientalis)and mixed tree species(Robinia pseudoacacia+Pinus tabuliformis,Robinia pseudoacacia+Platycladus orientalis,Platycladus orientalis+Pinus tabuliformis).The results showed that two afforestation models significantly changed the stoichiometric characteristics of soil and soil microbial carbon,nitrogen,and phosphorus content.The influence degree of afforestation on soil and microbial stoichiometry was not only caused by the afforestation model,but also by the species composition and species characteristics.

关 键 词：造林模式 土壤 土壤微生物 化学计量 渭北黄土高原 

分 类 号：S754.3[农业科学—森林经理学]