九寨沟不同受损林地土壤特征研究  

Research on Soil Characteristics of Different Damaged Woodlands in Jiuzhaigou County

作　　者：叶颂 刘邵谋 邓东周[3] 庄文化[1,2] 李卓[5] 潘红丽[3] 刁元彬 刘玉平 YE Song;LIU Shaomou;DENG Dongzhou;ZHUANG Wenhua;LI Zhuo;PAN Hongli;DIAO Yuanbin;LIU Yuping(State Key Laboratory of Hydraulics and Mountain River Engineering,College of Water Resource&Hydropower,Sichuan University,Chengdu 610065,China;Sichuan Key Laboratory of Ecological Restoration and Conservation for Forest and Wetland,Sichuan Academy of Forestry,Chengdu 610081,China;Administration Office of Jiuzhaigou County,Sichuan Gonggangling Nature Reserve,Jiuzhaigou 623400,China;Crop Research Institute,Sichuan Academy of Agricultural Sciences,Chengdu 610066,China)

机构地区：[1]四川大学水力学与山区河流开发保护国家重点实验室,四川成都610065 [2]四川大学水利水电学院,四川成都610065 [3]四川省林业科学研究院,森林和湿地生态恢复与保育四川省重点实验室,四川成都610081 [4]四川省贡杠岭自然保护区九寨沟县管理处,四川九寨沟623400 [5]四川省农业科学院作物研究所,四川成都610066

出　　处：《四川林业科技》2021年第1期6-10,共5页Journal of Sichuan Forestry Science and Technology

摘　　要：为了探索九寨沟地震不同受损林地土壤理化特征分布情况,进一步提高受损栖息地林草植被快速恢复模式的合理性,根据研究区震损程度,分析了各样地土壤理化性质。结果表明:土壤容重随震损程度增强呈先减小再增大的趋势;有效磷和铵态氮含量随震损程度增加而升高,而速效钾和硝态氮含量降低。因此,应根据不同震损地块的土壤理化性质进行有针对性的土壤改良,提高林草植被恢复速度,增强各种恢复模式的土壤肥力支撑条件。In order to explore the distribution situations of physical and chemical characteristics of different woodlands damaged in Jiuzhaigou earthquake and further improve the rationality of the rapid restoration model of forest-grass vegetation in the damaged habitat,the soil physical and chemical properties of different plots were analyzed according to the degree of earthquake damage in the study area.The results showed that:(1)The soil bulk density first decreased and then increased with the increasing degree of earthquake damage.(2)The contents of available phosphorus and ammonia nitrogen are positively correlated with the degree of earthquake damage,while the contents of available potassium and nitrate nitrogen showed the opposite pattern.Therefore,targeted soil improvement should be carried out according to the soil physical and chemical properties of different earthquake-damaged plots,in order to improve the recovery speed of forest-grass vegetation restoration,and enhance the supporting conditions of soil fertility in various restoration models.

关 键 词：九寨沟 震损程度 土壤理化性质 

分 类 号：S153.6[农业科学—土壤学]