黄山栾树造林模式对土壤酶活性和土壤肥力的影响  

Effects of Afforestation Patterns of Koelreuteria integrifolia on the Soil Enzyme Activity and Soil Fertility

作　　者：张鸿 ZHANG Hong(Hengshan Forest Farm of Bowang District,Ma'anshan 243131,Anhui,China)

机构地区：[1]马鞍山市博望区横山林场,安徽马鞍山243131

出　　处：《安徽林业科技》2023年第3期16-19,23,共5页Anhui Forestry Science and Technology

摘　　要：本文研究了黄山栾树不同造林模式对土壤理化性质、土壤养分和土壤酶活性的影响。结果表明,混交林能够显著改善土壤理化性质,提高土壤酶活性和土壤养分含量,以黄山栾树+水杉混交林效果最佳。与黄山栾树纯林相比,黄山栾树+水杉混交林的土壤容重降低了12.98%,总孔隙度增加了16.32%,pH值增加了35.03%,显著改善了土壤理化性质;黄山栾树+水杉混交林的土壤总有机碳含量、水溶性有机碳和有机质含量分别增加了59.92%、32.31%、48.81%,并显著增加了土壤氮磷钾元素的含量,提高了土壤肥力;黄山栾树+水杉混交林的土壤酶活性显著增加,其中脲酶、磷酸酶和蔗糖酶活性分别增加了17.27%、24.07%、8.37%,差异均达到显著水平。In this paper,a study was made on the the effects of different afforestation patterns of Koelreuteria integrifolia on the soil physicochemical properties,nutrients and enzyme activities.The results showed that the mixed forest could significantly improve the soil physicochemical properties,enzyme activity and nutrient content,with Koelreuteria integrifoliaxMetasequoia glyptostroboides mixed forest having the best effect.Compared with the soil of K.integrifolia pure forest,the soil bulk density of the mixed forest decreased by 12.98%,the total porosity increased by 16.32%and the pH value increased by 35.03%with significant improvement of the soil physicochemical properties.The contents of the soil total organic carbon,water-soluble organic carbon and organic matter in the mixed forest increased by 59.92%,32.31%and 48.81%respectively with significant increase in the contents of nitrogen,phosphorus and potassium and improvement of the soil fertility.The soil enzyme activities of the mixed forest increased significantly,in which those of urease,phosphatase and sucrase increased by 17.27%,24.07%and 8.37%respectively with significant differences.

关 键 词：黄山栾树 混交林 土壤 肥力 

分 类 号：S714[农业科学—林学]