邵阳植烟土壤有机质含量时空特征及与其他土壤养分的关系  

Organic Matter Contents in Soil of Shaoyang Tobacco Growing Areas, Their Spatial-Temporal Characteristics and Relations with Other Soil Nutrients

作　　者：邓小华[1] 邓井青 宾波[2] 张光利[2] 李永富[2] 于庆涛[2] 邹凯[2] 雷天义 肖志翔[2] 

机构地区：[1]湖南农业大学,长沙市芙蓉区410128 [2]邵阳市烟草专卖局,湖南省邵阳市大祥区422000

出　　处：《烟草科技》2014年第6期82-86,共5页Tobacco Science & Technology

基　　金：国家烟草专卖局特色优质烟叶开发重大专项"浓香型特色优质烟叶开发"(ts-01);湖南省科技厅科技项目"湖南浓香型特色优质烟叶研究与开发"(2013NK3073);湖南省烟草公司科技项目"湖南浓香型特色优质烟叶开发"(11-14Aa01)

摘　　要：为揭示邵阳烟区植烟土壤有机质含量时空特征及与其他土壤养分的关系，采用传统统计学、地统计学及分组回归、灰色关联分析方法分析了邵阳烟区植烟土壤有机质含量丰缺状况、空间分布、演变趋势及与土壤养分的定量关系。结果表明：①邵阳烟区植烟土壤有机质含量总体上适宜，平均值为28．19g／kg。变幅为10．20—70．90g／kg，变异系数为36．51％，处于适宜范围内的样本占42．91％。②邵阳县植烟土壤有机质含量极显著高于隆回县和新宁县。③邵阳烟区植烟土壤有机质含量呈斑块状分布态势，总体上从东部和西部向中部呈现减少的趋势，在新宁县的西部和邵阳县的东部各有一个高值区。④邵阳烟区植烟土壤有机质含量年度演变总体呈上升趋势。⑤土壤碱解氮、有效锌、水溶性氯、有效磷含量随着土壤有机质含量提高而增加，存在显著的正相关。⑥土壤养分与土壤有机质含量的关联度大小依次为：碱解氮〉有效锌〉水溶性氯〉有效磷〉速效钾〉交换性镁〉有效硼。In order to investigate the spatial-temporal characteristics of organic matter contents in soil of Shaoyang tobacco growing areas and their relations with other soil nutrients, the organic matter contents, spatial distribution and evolution trend and their quantitative relation with other soil nutrients were analyzed by the methods of traditional statistics, geo-statistics, grouping-regression analysis and grey incidence analysis. The results were as follows： 1） The organic matter content in soil of Shaoyang tobacco growing areas was generally appropriate, it ranged from 10.20 to 70.90 g/kg with the mean value of 28.19 g/kg and the variation coefficient of 36.51%. 42.91% of the samples containing suitable organic matter for tobacco growth. 2） The organic matter content in soil of Shaoyang County was extremely significantly higher than that in Longhui County and Xinning County. 3） The organic matter content was patch-like distributed and generally reduced from the east and west towards middle part in Shaoyang. There was an area with higher organic matter content in the west part of Xinning County and another area in the east part of Shaoyang County. 4） The organic matter contents in soil was increasing over the years in general. 5） The contents of alkali-hydrolyzable nitrogen, available zinc, water-soluble chloride and available phosphorus significantly positively correlated to the organic matter contentin soil. 6） The soil nutrients in the order of correlation alkali-hydrolyzable nitrogen 〉 available zinc 〉 water-soluble with organic matter content in chloride 〉 available phosphorus soil were 〉 available potassium 〉 exchangeable magnesium 〉 available boron.

关 键 词：植烟土壤 有机质 空间分布 分组回归 灰色关联 

分 类 号：S572.06[农业科学—烟草工业] S158[农业科学—作物学]