不同营林抚育措施对红锥林土壤的影响  

Effects of Different Forest Tending Measures on Soil of Red Cone Forest

作　　者：陆婷 Lu Ting(Longyandong Forest Farm,Guangdong Province,Guangzhou 510520,China)

机构地区：[1]广东省龙眼洞林场,广州510520

出　　处：《林业科技情报》2024年第3期57-59,共3页Forestry Science and Technology Information

摘　　要：目的:分析不同营林抚育措施对红锥林土壤的影响。方法:在广东省龙眼洞林场红锥林种植基地开展研究,试验基地选择地势坡缓、长势健康的林区,在生长基地内开展不同营林抚育措施,不做任何处理纳入CK组,铲草纳入Z1组,施肥纳入Z2组,铲草+施肥纳入Z3组,对比不同营林抚育措施对红锥林土壤的影响。结果:Z3组的pH值、有机质、全氮、全磷、全钾、碱解氮、速效磷、速效钾各项指标高于Z2组、Z1组和CK组,有统计学意义(P<0.05)。Z2组的pH值、有机质、全钾、碱解氮、速效钾高于Z1组和CK组(P<0.05),全氮、全磷、速效磷和Z1组对比无差异(P>0.05)。Z1组的机质、全氮、全磷、全钾、碱解氮、速效磷、速效钾高于CK组(P<0.05),pH值和CK组无差异(P>0.05),总体而言,Z3组>Z2组>Z1组>CK组。Z3组0~20 cm、20~40 cm、40~60 cm 0和60~80 cm不同土层的含水率不同,均有差异(P<0.05),Z3组的各个土层土壤含水率分层明显。CK组、Z1组和Z2组不同土层含水率存在相同比例,对比无统计学差异(P>0.05)。不同小组采用不同营林抚育措施后,Z3组的N、P、K的径流水、径流泥沙总量均少于Z2组、Z1组和CK组,对比有统计学意义(P<0.05)。结论对红锥林土壤采用铲草+施肥的方式进行抚育处理,能改善土壤成分,提升土壤的养分含量,促进红锥林生长。Objective:To analyze the effects of different forest tendingmeasures on soil of red cone forest.Methods:The study was carried out in Hongzhi forest planting base of Longyan Cave Forest Farm in Guangdong Province.Forest areas with slow slope and healthy growth were selected in the experimental base,and different forest tending measures were carried out in the growing baseincluding CK group without any treatment,Z1 group with shoveling grass,Z2 group with fertilization,and Z3 group with shoveling grass+fertilization.The effects of different forest tending measures on Hongzhi forest soilwerecompared.Results The pH value,organic matter,total nitrogen,total phosphorus,totalpotassium,alkali-hydrolyzed nitrogen,available phosphorus and available potassium in Z3 group were higher than those in Z2,Z1 and CK groups,wistatisticalsignificance(P<0.05).The pH value,organic matter,total potassium,alkali-hydrolyzed nitrogen and available potassium in Z2 group were higher than those in Z1 and CK groups(P<0.05),but there was no difference in total nitrogen,total phosphorus and available phosphorus between Z1 group and Z1 group(P>0.05).The mechanical quality,total nitrogen,total phosphorus,total potassium,alkali-hydrolytic nitrogen,available phosphorus and available potassium of Z1 group were higher than those of CK group(P<0.05),while the pH value of Z3 group was not different from that of CK group(P>0.05).In general,Z3group>Z2 group>Z1 group>CK group.The water content of 0~20 cm,20~40 cm,40~60 cm 0 and 60~80 cm soil layers in Z3 group was different(P<0.05),and the soil moisture content of Z3 group was stratified obviously.The water content of different soil layers in CK group,Z1 group and Z2 group had the same proportion,and there was no statistical difference(P>0.05).After different groups were treated with different forests,the total amount of N,P and K runoff water and runoff sediment in Z3 group was lower than that in Z2,Z1 and CK groups,and the comparison was statistically significant(P<0.05).Conclusion The soil composition

关 键 词：营林抚育 红锥林 土壤成分 

分 类 号：S791.22[农业科学—林木遗传育种]