金针菇菌渣对川西北高寒沙地植被及土壤酶活性的影响  

Influences of Adding Needle Mushroom Edible Fungi Residues on Vegetation and Soil Enzyme Activity of Sandy Soil in Northwest Sichuan

作　　者：冯慧翎 胡玉福[1] 舒向阳[1] 庞宇[1] 费凯[1] 何剑锋[1] 蒋双龙 

机构地区：[1]四川农业大学资源学院,成都611130 [2]开江县国土资源局,四川达州656250

出　　处：《水土保持学报》2016年第5期161-165,共5页Journal of Soil and Water Conservation

基　　金：国家支撑计划项目(2015BAC05B01);四川省科技计划项目(2013SZ0110;2014SZ0159;2014SZ0057);四川省科技支撑计划(2013NZ0027)

摘　　要：为探究施用金针菇菌渣对川西北高寒沙化土地植被、土壤有机碳和土壤酶活性的影响,通过田间试验和土壤样品采集与化验,研究了不同菌渣量处理下川西北高寒沙地植被、土壤理化性质及酶活性变化特征。研究结果表明,15kg/m2菌渣混施(F4)、10kg/m2菌渣混施(F3)、5kg/m2菌渣混施(F1)处理下地表植被盖度、高度、生物量、土壤含水量、有机碳及酶活性显著高于对照(CK),土壤容重显著低于CK。F4处理下,植被盖度、高度、生物量、土壤含水量、有机碳、纤维素酶、淀粉酶、蔗糖酶和多酚氧化酶活性分别增加了272.20%,144.51%,228.85%,616.46%,93.25%,135.90%,129.22%,154.41%,99.88%,115.03%;土壤容重降低了39.04%。说明菌渣与土壤混施对于川西北高寒沙化草地植被恢复、土壤理化性质改善和土壤酶活性提高具有显著效果,且随着菌渣施用量的增加作用效果增强。F2处理下土壤有机碳、纤维素酶、淀粉酶、蔗糖酶和多酚氧化酶活性与CK相比差异未达显著水平,但显著低于F1、F3、F4处理,表明菌渣地表覆盖方式施用效果不及混合施入土壤方式。相关性分析结果表明,有机碳、地下生物量、纤维素酶、淀粉酶、蔗糖酶和多酚氧化酶活性两两之间极显著相关(P<0.01)。In order to reveal the effects of edible fungus residue on vegetation,soil organic carbon and enzyme activities of sandy soil,sandy soil was sampled in the northwest Sichuan as research object by five point sampling method.The results showed that the treatment of mixing 5kg/m2 edible fungus residue in soil（F1）,mixing 10kg/m2 edible fungus residue in soil（F3）and mixing 15kg/m2 edible fungus residue in soil（F4）could significantly increase vegetation coverage and height,biomass,soil water content,organic carbon and enzyme activities,and decrease the soil bulk density.Compared with CK,the treatment of F4 increased vegetation coverage and height,biomass,soil water content,organic carbon and enzyme activities by 272.20%,144.51%,228.85%,616.46%,93.25%,135.90%,129.22%,154.41%,99.88%,115.03% and decreased the soil bulk density by 39.04%.It indicated that the mixing of edible fungus residue and soil had a remarkable effect on vegetation,soil physicochemical properties and enzyme activities.The treatment of F2 could increase soil organic carbon,cellulase,amylase,invertase and polyphenol oxidase activity compared with the CK,but it was significantly lower than F1,F3 and F4.This result indicated that the effect of cover the soil was better than that of edible fungus residue mixed application.Correlation analysis showed that the SOC,below biomass and enzymes activities were obviously positive correlation（P0.01）.

关 键 词：菌渣 沙化土壤 有机碳 酶活性 

分 类 号：S151.9[农业科学—土壤学]