安徽林业科技
安徽林業科技
안휘임업과기
ANHUI FORESTRY SCIENCE AND TECHNOLOGY
2015年
4期
19-23
,共5页
板栗%土壤养分%结实性状%逐步回归分析
闆慄%土壤養分%結實性狀%逐步迴歸分析
판률%토양양분%결실성상%축보회귀분석
Castanea mollissima%Soil nutrients%Fruiting characters%Stepwise regression analysis
本文对三明市将乐县5个样地板栗林的结实性状和供试土壤养分进行研究,采用逐步回归分析方法探讨了土壤养分与板栗果实结实性状之间的关系,旨在找出影响板栗果实品质的主要土壤因子。结果表明,5个样地土壤养分和结实性状变异存在较大相关性,有机质、全N、水解N、全K、有效P和果高、果宽和籽粒数的差异性达到了显著相关性水平。同时,板栗的结实性状与土壤养分存在较大和较复杂的相关性,N、P、K、有机质对不同结实性状起大小不一的正负效应,速效K是影响板栗结实性状的首要指标,水解N和全N次之,有机质和全P影响较小。
本文對三明市將樂縣5箇樣地闆慄林的結實性狀和供試土壤養分進行研究,採用逐步迴歸分析方法探討瞭土壤養分與闆慄果實結實性狀之間的關繫,旨在找齣影響闆慄果實品質的主要土壤因子。結果錶明,5箇樣地土壤養分和結實性狀變異存在較大相關性,有機質、全N、水解N、全K、有效P和果高、果寬和籽粒數的差異性達到瞭顯著相關性水平。同時,闆慄的結實性狀與土壤養分存在較大和較複雜的相關性,N、P、K、有機質對不同結實性狀起大小不一的正負效應,速效K是影響闆慄結實性狀的首要指標,水解N和全N次之,有機質和全P影響較小。
본문대삼명시장악현5개양지판률림적결실성상화공시토양양분진행연구,채용축보회귀분석방법탐토료토양양분여판률과실결실성상지간적관계,지재조출영향판률과실품질적주요토양인자。결과표명,5개양지토양양분화결실성상변이존재교대상관성,유궤질、전N、수해N、전K、유효P화과고、과관화자립수적차이성체도료현저상관성수평。동시,판률적결실성상여토양양분존재교대화교복잡적상관성,N、P、K、유궤질대불동결실성상기대소불일적정부효응,속효K시영향판률결실성상적수요지표,수해N화전N차지,유궤질화전P영향교소。
This paper studied the fruiting characters of the Castanea mollissima plantations in 5 sample plots in Jiangle County, Sanming and the soil nutrients in the plots. Stepwise regression analysis was adopted to explore the correlation between the soil nutrients and the chestnut fruiting characters with the aim of finding out the major soil factors affecting chestnut fruit qualities. The results showed that there were significant correlation between the soil nutrients and the fruiting character variations, and organic matter, total nitrogen, hydrolyzable nitrogen, total potassium and available phosphorus were significantly correlated with the fruit height, fruit width and seed number in a fruit. Meanwhile, there were significant and complicated correlation between the chestnut fruiting characters and the soil nutrients and N, P, K and organic matter had mixed positive or negative effects on the fruiting characters, of which available potassium was the leading indicator, followed by hydrolyzable nitrogen and total nitrogen while organic matter and total phosphate had the least effects.