不同覆盖方式对云南干热河谷油橄榄园土壤温度、水分和容重的影响  

Effects of Different Mulching on Soil Temperature,Moisture and Unit Weight of Olea europaea L.Garden in Dry and Hot Valley of Yunnan

作　　者：毛云玲[1] 邓佳[1] 陆斌 宁德鲁[1] 

机构地区：[1]云南省林业科学院,昆明650204 [2]云南省林业技术推广总站,昆明650204

出　　处：《西北农业学报》2010年第2期150-154,共5页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：林业公益性行业科研专项项目(200704002);国家林业局"948"项目(2006-4-89)"油橄榄优良种质资源收集保存;品种区域化试验与丰产栽培技术研究"

摘　　要：对云南省金沙江干热河谷永仁地区油橄榄园地进行覆盖试验,研究了不同材料覆盖后油橄榄园土壤温度、水分、容重变化。结果表明,覆盖对土温变化的调节作用主要表现在土壤表层,随土层深度增加调节作用减小;夏季油橄榄园覆盖后随气候温度升高土壤温度日变幅减小;不同材料覆盖间存在差异,薄膜覆盖土温变幅最大,纸箱次之,秸秆变幅最小。覆盖提高了园地土壤含水量,有较好的保墒效果;覆盖秸秆、杂草0-20cm土层含水量较高;随着土壤深度增加,不同覆盖处理之间土壤水分含量差异增大。4种材料覆盖均有利于降低土壤容重,其中以秸秆效果最显著。Based on experiment on mulching Olea europaea L.garden in dry and hot valley of Yunnan with different mulching materials,the dyanmic change of temperature,moisture and unit weight in the garden soil were detected and analyzed.The results showed that adjustment of mulching on soil temperature is mainly to upper layer.The daily change of soil temperature decrease with air temperature increase in summer after mulching.The change of soil temperature is different with different mulching materials,of which with plastic mulching is the greatest,paper box mulching is greater and that of straw is the least.Mulching has raised soil moisture in the garden.The moisture keeping capacity shows the highest with straw mulching in 0～20 cm layer.However,the difference of soil moisture increase with the soil depth among 4 mulching materials.All mulching can decrease soil unit weight.And straw mulching has the most effects.

关 键 词：干热河谷 油橄榄园 土壤覆盖 土壤温度 土壤水分 土壤容重 

分 类 号：S565.7[农业科学—作物学] S626.2