湖南典型烟区土壤有机质与活性组分的分布特征及相关性  

Distribution Characteristics and Correlation of Soil Organic Matter and its Active Ingredients in the Typical Tobacco-growing Regions in Hunan

作　　者：刘琼峰[1] 彭曙光 刘勇军 李明德[1] 吴海勇[1] 谷雨[1] 段淑辉 肖汉乾 李伟 蒋尊龙 贾少成 张明发 LIU Qiongfeng;PENG Shuguang;LIU Yongjun;LI Mingde;WU Haiyong;GU Yu;DUAN Shuhui;XIAO Hanqian;LI Wei;JIANG Zunlong;JIA Shaocheng;ZHANG Mingfa(Hunan Soil and Fertilizer Institute, Changsha 410125, China;Hunan Provincial Tobacco Company, Changsha 410004, China;Yongzhou Branch of Hunan Provincial Tobacco Company, Yongzhou, Hunan 425000, China;Xiangxi Branch of Hunan Provincial Tobacco Company, Jishou, Hunan 416000, China)

机构地区：[1]湖南省土壤肥料研究所,长沙410125 [2]湖南省烟草公司,长沙410004 [3]湖南省烟草公司永州市公司,湖南永州425000 [4]湖南省烟草公司湘西自治州公司,湖南吉首416000

出　　处：《中国烟草科学》2017年第6期67-73,共7页Chinese Tobacco Science

基　　金：中国烟草总公司湖南省公司科技创新项目"湖南烟区植烟土壤有机质分布特征及有机肥影响烤烟品质的机理研究与应用"(15-18Aa01)

摘　　要：为探明湖南省湘西自治州烟区与湘南永州烟区土壤有机质的数量和质量状况,运用野外调查与室内分析相结合、Arc GIS空间插值与统计分析相结合的方法,研究了典型烟区植烟土壤有机质与活性组分的分布特征及相关性。结果表明,湘西自治州烟区与湘南永州烟区植烟土壤有机质含量总体偏高,空间变异较大。湘西自治州烟区土壤有机质平均含量为28.55 g/kg,土壤活性有机质平均含量为6.25 g/kg,植烟县土壤有机质含量主要处于适宜、高范围(占66.18%);湘南永州烟区土壤有机质平均含量为42.3 g/kg,土壤活性有机质平均含量为7.80 g/kg,植烟县土壤有机质主要处于高、极高范围(占70.1%)。两大典型生态烟区土壤有机质与活性有机质含量均呈线性正相关关系,土壤有机质与土壤全氮、碱解氮的相关性最大,表明土壤氮素与土壤有机质的关系最为密切。研究区应根据土壤有机质的分布特征合理调控有机肥和氮肥的施用。In order to investigate the quantity and quality status of soil organic matter in tobacco-growing areas of Xiangxi autonomous region and Yongzhou region of Hunan Province,the distribution characteristics of soil organic matter and its active ingredients in two typical tobacco-growing regions have been studied by using the field investigation and statistic analysis methods.The results showed that the content of soil organic matter in the tobacco-growing soil of Xiangxi autonomous region and Yongzhou region is relatively high and with a relatively large spatial variability.The average content of soil organic matter and soil active organic matter reached28.55and6.25g/kg respectively in Xiangxi tobacco-growing areas,with66.18%of the soils having soil organic matter contents at appropriate and high levels.The average content of soil organic matter and soil active organic matter reached42.3and7.80g/kg respectively in Yongzhou tobacco-growing areas,with and70.1%of the soils having soil organic matter contents at high and very high levels.Soil organic matter was positively linearly related to the content of active organic matter,and showed the greatest correlation with soil total nitrogen and alkaline hydrolysis nitrogen.According to the characteristics of soil organic matter distribution,organic fertilizers and nitrogen fertilizer should be rationally regulated in these tobacco growing areas.

关 键 词：土壤有机质 土壤活性有机质 分布特征 相关性 典型烟区 

分 类 号：S153.6[农业科学—土壤学]