林业资源管理
林業資源管理
임업자원관리
FORESTRY RESOURCE MANAGEMENT
2014年
4期
92-97
,共6页
赵串串%赵巧玉%安若兰%孟汉龙%宋枘泽%董旭
趙串串%趙巧玉%安若蘭%孟漢龍%宋枘澤%董旭
조천천%조교옥%안약란%맹한룡%송예택%동욱
土壤养分%物元分析%林型%群落结构
土壤養分%物元分析%林型%群落結構
토양양분%물원분석%림형%군락결구
matter-element analysis%partial correlation analysis%forest type%community structure
将土壤有机质、全氮、全磷、全钾、速效氮、速效磷和速效钾作为评价指标，应用物元分析法建立综合评价模型，对玉树东南部森林土壤养分进行了评价，并对土壤养分限制因子的影响因素进行方差分析。结果表明：玉树东南部森林土壤整体养分状况良好，速效磷含量缺乏成为限制因子；林型和森林群落复杂性对速效磷影响显著（P＝0.05），针阔混交林与复杂群落结构下速效磷含量最高。物元模型在评价过程中表现出优势，是土壤养分评价的理想方法。
將土壤有機質、全氮、全燐、全鉀、速效氮、速效燐和速效鉀作為評價指標，應用物元分析法建立綜閤評價模型，對玉樹東南部森林土壤養分進行瞭評價，併對土壤養分限製因子的影響因素進行方差分析。結果錶明：玉樹東南部森林土壤整體養分狀況良好，速效燐含量缺乏成為限製因子；林型和森林群落複雜性對速效燐影響顯著（P＝0.05），針闊混交林與複雜群落結構下速效燐含量最高。物元模型在評價過程中錶現齣優勢，是土壤養分評價的理想方法。
장토양유궤질、전담、전린、전갑、속효담、속효린화속효갑작위평개지표，응용물원분석법건립종합평개모형，대옥수동남부삼림토양양분진행료평개，병대토양양분한제인자적영향인소진행방차분석。결과표명：옥수동남부삼림토양정체양분상황량호，속효린함량결핍성위한제인자；림형화삼림군락복잡성대속효린영향현저（P＝0.05），침활혼교림여복잡군락결구하속효린함량최고。물원모형재평개과정중표현출우세，시토양양분평개적이상방법。
The comprehensive evaluation model based on matter-element analysis method was applied to evaluation of the forest soil nutrient in southeast of Yushu,with the soil organic matter,total nitrogen,to-tal phosphorus,total potassium,available nitrogen,available phosphorus and available potassium chosen as evaluation indexes.Results indicated that the situation of forest soil nutrient in southeast of Yushu was favorable,but the available phosphorus became the limiting factor due to its poor content among the sev-en indicators.Forest type and forest community complexity had significant effects on available phosphor-us (P=0.05 ).Available phosphorus content under mixed needle leaf forest and complex community structure was highest.Matter-element model presented its advantage in the process of assessment,and was an ideal method for soil nutrient evaluation.
