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当前位置: 首页 > 文章 > 祁连山青海云杉林土壤养分特征 甘肃农业大学学报 2016,51 (5) 88-94
Position: Home > Articles > Soil nutrient characteristics of Picea crassifolia forest in Qilian Mountains Journal of Gansu Agricultural University 2016,51 (5) 88-94

祁连山青海云杉林土壤养分特征

作  者：
李雯靖;王立;赵维俊;牛赟;齐鹏
单  位：
甘肃省祁连山水源涵养林研究院;甘肃农业大学林学院;甘肃农业大学资源与环境学院
关键词：
青海云杉林;土壤养分;土壤剖面;祁连山
摘  要：
【目的】研究祁连山青海云杉林中土壤碳、氮、磷、钾等养分特征,以及养分含量和养分空间异质性及相互关系.【方法】选取祁连山大野口流域1hm2青海云杉林样地为研究对象,采用土壤剖面取样及室内分析相结合的方法.【结果】土壤剖面(0~60cm)有机碳、全氮、速效氮、全磷、速效磷、全钾和速效钾含量分别为(71.94±11.70)g/kg、(4.07±1.70)g/kg、(264.16±111.75)mg/kg、(0.59±0.07)g/kg、(18.51±7.52)mg/kg、(23.87±3.58)g/kg和(152.81±70.92)mg/kg.土壤养分中,除速效氮含量呈左偏态分布,有机碳、全氮、全磷、速效磷、全钾和速效钾含量均呈右偏态分布,变异系数大小为:速效钾>有机碳>速效氮>全氮>速效磷>全钾>全磷.相关性分析表明,有机碳与氮素、磷素、钾素(全钾负相关)之间密切正相关,同时,全量养分之间彼此相互关联,速效养分中仅速效氮含量受控于全氮.【结论】土壤养分主要受植被和土壤两大因素影响,两大因素累计解释异质量为64.008%.
译  名：
Soil nutrient characteristics of Picea crassifolia forest in Qilian Mountains
作  者：
LI Wen-jing;WANG Li;ZHAO Wei-jun;NIU Yun;QI Peng;College of Forestry,Gansu Agricultural University;Academy of Water Resources Conservation Forests in Qilian Mountains of Gansu Province;College of Resource and Environment Sciences,Gansu Agricultural University;
关键词：
Picea crassifoliaforest;;total nutrient;;soil profile;;Qilian Mountains
摘  要：
【Objective】To research the details of soil carbon,nitrogen,phosphorus,potassium nutrients characteristics,and nutrient spatial heterogeneity in Dayekou basin of the Qilian Mountain.【Method】Soil sample from 1hm~2 plot of Picea craaifoliaforest was selected as the research object,stratified sampling of soil profile and laboratory analysis methods were used in the test.【Result】The content of soil organic carbon,total nitrogen,available nitrogen,total phosphorus,available phosphorus,total potassium and available potassium content of whole soil profile(0~ 60cm)were(71.94 ± 11.70)g/kg,(4.07±1.70)g/kg,(264.16 ±111.75)mg/kg,(0.59±0.07)g/kg,(18.51±7.52)mg/kg,(23.87±3.58)g/kg and(152.81± 70.92)mg/kg respectively.In addition to the content of soil available nitrogen left skewed distribution,the soil organic carbon,total nitrogen,total phosphorus,available phosphorus,total potassium and available potassium content were all right skewed distribution.The variation coefficient size:available potassium>organic carbon>available nitrogen>total nitrogen > available phosphorus>total potassium>total phosphorus respectively.Correlation analysis showed that the organic carbon and nitrogen,phosphorus and potassium(negatively related to the total potassium)were closely related,at the same time,total contents of nutrients were closely interrelated,only available nitrogen content controlled all over nitrogen in the available nutrient.【Conclusion】Soil nutrients is mainly influenced by vegetation and soil factors,the cumulative explain different quality is 64.008% of two main factors.

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