现代农业科技
現代農業科技
현대농업과기
XIANDAIHUA NONGYE
2012年
17期
224-225,231
,共3页
王艳艳%赵伟明%赵科理%叶正钱
王豔豔%趙偉明%趙科理%葉正錢
왕염염%조위명%조과리%협정전
山核桃林地%海拔高度%pH值%有效养分%有机质%影响
山覈桃林地%海拔高度%pH值%有效養分%有機質%影響
산핵도임지%해발고도%pH치%유효양분%유궤질%영향
Chinese hickory orchards%altitude%pH value%available nutrient%organic matter%effect
在山核桃产区湍口镇开展了对山核桃林地土壤pH值和有效养分状况随海拔高度的动态监测。结果表明,在海拔220~330 m的范围内,随着海拔升高,土壤pH值呈明显的上升趋势,变幅为5.05~6.32。土壤速效氮、速效磷、速效钾和有机质则在海拔220~310 m表现出一定程度的下降,它们的变幅分别为土壤速效氮201.25~274.75 mg/kg、速效磷18.60~121.41 mg/kg、速效钾99.63~207.50 mg/kg、有机质26.87~42.77 g/kg;而在海拔330 m的山顶,它们的含量均维持在较高水平。研究结果表明,山核桃林地土壤pH值和有效养分随海拔升高分别表现出明显的垂直分布特征。此外,它们的变异还受到土壤条件、施肥水平以及地形、气候等因素的影响。
在山覈桃產區湍口鎮開展瞭對山覈桃林地土壤pH值和有效養分狀況隨海拔高度的動態鑑測。結果錶明,在海拔220~330 m的範圍內,隨著海拔升高,土壤pH值呈明顯的上升趨勢,變幅為5.05~6.32。土壤速效氮、速效燐、速效鉀和有機質則在海拔220~310 m錶現齣一定程度的下降,它們的變幅分彆為土壤速效氮201.25~274.75 mg/kg、速效燐18.60~121.41 mg/kg、速效鉀99.63~207.50 mg/kg、有機質26.87~42.77 g/kg;而在海拔330 m的山頂,它們的含量均維持在較高水平。研究結果錶明,山覈桃林地土壤pH值和有效養分隨海拔升高分彆錶現齣明顯的垂直分佈特徵。此外,它們的變異還受到土壤條件、施肥水平以及地形、氣候等因素的影響。
재산핵도산구단구진개전료대산핵도임지토양pH치화유효양분상황수해발고도적동태감측。결과표명,재해발220~330 m적범위내,수착해발승고,토양pH치정명현적상승추세,변폭위5.05~6.32。토양속효담、속효린、속효갑화유궤질칙재해발220~310 m표현출일정정도적하강,타문적변폭분별위토양속효담201.25~274.75 mg/kg、속효린18.60~121.41 mg/kg、속효갑99.63~207.50 mg/kg、유궤질26.87~42.77 g/kg;이재해발330 m적산정,타문적함량균유지재교고수평。연구결과표명,산핵도임지토양pH치화유효양분수해발승고분별표현출명현적수직분포특정。차외,타문적변이환수도토양조건、시비수평이급지형、기후등인소적영향。
A dynamic mornitoring was conducted to examine soil pH value and nutrient availability changing with altitude in different Chinese hickory orchards of Tuankou town.Results showed that within the attitude 220~330 m of the increasing height,soil pH value increased obviously with the range of 5.05~6.32.Soil available nutrients of nitrogen(N),phosphorus(P),potassium(K) and organic matter(OM) decreased within 220~310 m with the ranges of 201.25~274.75 mg/kg,18.60~121.41 mg/kg,99.63~207.50 mg/kg and 26.87~42.77 g/kg,respectively.However,at the top of the hill(330 m),the contents of N,P,K and OM soil all maintained a relative higher level.The results indicated pH value and available nutrients perform a vertical distribution with the attitude.In addition,their variations were affected by soil conditions,application rate,topography and climate factors,etc.