江西毛竹主产区土壤有效Cu、Zn、Fe和Mn空间分布特征研究  

A Study on Spatial Distribution of Soil Available Cu,Zn,Fe and Mn in Moso Bamboo Stands in Jiangxi Province

作　　者：鲁顺保[1,2] 龚霞[1] 张勇江[1] 郭晓敏[1] 

机构地区：[1]江西农业大学园林与艺术学院/江西省竹子种质资源与利用重点实验室,江西南昌330045 [2]江西师范大学生命科学学院,江西南昌330022

出　　处：《江西农业大学学报》2010年第4期752-758,共7页Acta Agriculturae Universitatis Jiangxiensis

基　　金：国际植物营养研究所IPNI项目(Jiangxi-18);国家自然科学基金项目(30860226);科技部农业科技成果转化资金项目(2008GB2C500149);科技部科技支撑项目(2008BADA9B0802);江西省教育厅青年基金项目(GJJ10093);江西省科技厅学科带头人项目(030008)

摘　　要：对江西6个毛竹主产县8个林地的土壤有效Cu、Zn、Fe和Mn含量分布进行研究,结果表明其含量差异变化均较大。0～10,10～30和30～50cm平均有效Cu含量分别为0.70,0.51和0.39mg/kg,排埠、双峰和官山林地有效Cu含量主要分布在0.5～1.0mg/kg,分别占全部样地的77.8%,100%和88.9%;除太平山庄外,10～30cm和30～50cm土层有效Cu含量均低于0.5mg/kg。有效Zn的平均含量分别为2.00,1.34,0.86mg/kg。有效Fe的平均含量分别为19.41,15.93和13.56mg/kg,三爪仑样地0～10cm土壤有效Fe含量在20～25mg/kg,占全部样地的88.9%;10～30cm在15～20mg/kg,占全部样地的55.6%。土壤有效Mn平均含量分别为16.37,12.13和9.20mg/kg,太平山庄样地0～10cm和10～30cm土壤有效Mn含量为15～20mg/kg,均占全部样地的66.7%。方差分析表明,不同样地土壤有效Cu、Zn、Fe和Mn含量均达极显著差异。相关性分析表明:土壤有机质和有效Fe含量之间呈显著正相关,与Cu呈负相关,与10～30cm和30～50cm土壤有效Zn和0～10cm有效Mn呈负相关但不显著。除0～10cm的土壤有效Fe和Zn含量之间不显著外,其它微量元素之间均达显著差异或极显著差异。The distribution characteristics of available Cu,Zn,Fe and Mn of soil samples from bamboo forests of 8 sites in 6 main producing bamboo counties in Jiangxi Province were studied.The results showed that the differences of these available microelements in different sites were obvious.The average contents of available Cu in the 0-10 cm,10-30 cm and 30-50 cm layers were 0.70,0.51 and 0.39 mg/kg respectively.The available Cu contents were 0.5-1.0 mg/kg in Paibu,Shuangfeng and Guanshan,accounting for 77.8%,100% and 88.9% respectively.The available Cu contents in the 10-30 cm and 30-50 cm layers except in Taiping Hills were less than 0.5 mg/kg.The average contents of available Zn in the 0-10 cm,10-30 cm and 30-50 cm layers were 2.00,1.34 and 0.86mg/kg respectively.The average contents of available Fe in the 0-10 cm,10-30 cm and 30-50 cm layers were 19.41,15.93 and 13.56 mg/kg respectively.The available Fe content in the 0-10 cm layer in San Zhualun was 20-25 mg/kg and accounted for 88.9% ,15-20 mg/kg in the 10-30 cm and accounted for 55.6% .The average contents of soil available Mn in the 0-10 cm,10-30 cm and 30-50 cm layers were 16.37,12.13 and 9.20 mg/kg respectively.The available Mn contents in the 0-10 cm and 10-30 cm layers in Taiping Hills were 15-20 mg/kg and both accounted for 66.7% .The available soil Cu,Zn,Fe and Mn contents were significantly different among all the forests at the three depths.The correlation analyses showed that there was a significant correlation between soil organic matter （SOM） and available Fe,and a negative correlation between SOM and available Cu.There were no significant differences between soil available Zn in the 10-30 cm and 30-50 cm layers and available Mn in the 0-10 cm,but the correlations were negative.The correlations were significant in different soil layers among these microelements except available Fe and Zn in the 0-10 cm layer.

关 键 词：毛竹 微量元素 空间分布 

分 类 号：S153.61[农业科学—土壤学]