覆盖对丘陵山地柑桔园地温变化的影响  

EFFECT OF COVERTURE ON VARIATIONS OF SOIL TEMPERATURE IN HILLY CITRUS ORCHARD

作　　者：李银国[1] 陈建祥 杨光超 杨长富 王树良[1] 

机构地区：[1]中国农业科学院柑桔研究所,贵州省榕江县农牧局土肥站

出　　处：《西南农业大学学报（自然科学版）》1996年第3期221-224,共4页Journal of Southwest Agricultural University

基　　金：国家自然科学基金

摘　　要：对丘陵山地柑桔园进行藁草覆盖试验表明，夏季覆盖可有效地降低地表最高温度４．６℃～５．６℃；冬季覆盖可增温２．５℃－５．０℃。覆盖有稳定地温和防止地表高、低剧烈变化的影响。随着上层深度的增加，覆盖的效应逐渐减弱。The resuIt of two years trial of coverture in hilly citrus orchard shows thatsummer coverture with wild straws can reduce the temperature of soil surface effectivelyfrom 4.6℃～5.6℃,winter coverture can prevent fruit trees from frostbite and increasessoil surface temperature from 2.5℃～5.0℃.Coverture has also the effect to stablize soiltemperature and prevent an acute variation of soil surface temperature from high tempera-ture and low temperature. The effect of coverture on each soil layer decreases as depth ofsoil is increases.

关 键 词：覆盖 柑桔属 果园 果园上 地温 

分 类 号：S666.053[农业科学—果树学]