引用本文:王程栋,徐宜民,马兴华,刘光亮,曲潇玲,李东阳,曾庆宾,王树声.中国优质烤烟产区耕层土壤腐殖质组分特征[J].土壤学报,2019,56(4):919-928.
WANG Chengdong,XU Yimin,MA Xinghua,LIU Gangliang,QU Xiaoling,LI Dongyang,ZENG Qingbin,WANG Shusheng.Humus Composition of Topsoil in Quality Flue-cured Tobacco Producing Region in China[J].Acta Pedologica Sinica,2019,56(4):919-928
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中国优质烤烟产区耕层土壤腐殖质组分特征
王程栋1, 徐宜民1, 马兴华1, 刘光亮1, 曲潇玲1, 李东阳2, 曾庆宾3, 王树声1
1.中国农业科学院烟草研究所;2.陕西省烟草公司宝鸡市公司;3.四川省烟草公司攀枝花市公司
摘要:
土壤腐殖质含量和组成影响烤烟的产量和质量。中国烤烟种植空间分布广泛,植烟土壤的成土因素和土壤类型复杂多样,但有关全国尺度的植烟土壤腐殖质组分特征的研究报道甚少。采集了中国12个优质烟叶产区47个代表性县市425个典型烟田的耕层(0~30 cm)土样,测定和比较分析了土壤腐殖质组分,并进行了聚类分区。结果表明:(1)腐殖质总碳量介于6.04~23.18 g·kg-1,平均为13.91 g·kg-1;腐殖酸碳量、胡敏酸碳量、胡敏素碳量、富里酸碳量以及胡富比的范围分别为3.66~12.23 g·kg-1、1.41~6.17 g·kg-1、2.38~10.95 g·kg-1、2.24~6.99 g·kg-1和0.45~1.03,平均分别为8.10 g·kg-1、3.22 g·kg-1、5.81 g·kg-1、4.88 g·kg-1和0.72。(2)腐殖质全碳量南岭山区显著高于其他地区,中原产区与鲁中山区显著低于其他地区;腐殖酸碳量、胡敏酸碳量和胡敏素碳量均以南岭山区为最高,鲁中山区均为最低;胡敏素含量攀西山区较高,但其他组分偏低。(3)依据腐殖质组分(6项指标)将47个县市产区分为四类地区,各类地区之间腐殖质含量和组分差异显著。
关键词:  全国尺度  植烟土壤  不同产区  腐殖质组分  聚类分析
DOI:10.11766/trxb201805230214
分类号:
基金项目:中国农业科学院科技创新工程项目(ASTIP-TRIC03)、 中国烟草总公司陕西省公司项目(BJYC-2016-FW-043)和中国烟草总公司四川省公司项目(PZHYC2018001)共同资助
Humus Composition of Topsoil in Quality Flue-cured Tobacco Producing Region in China
WANG Chengdong1, XU Yimin1, MA Xinghua1, LIU Gangliang1, QU Xiaoling1, LI Dongyang2, ZENG Qingbin3, WANG Shusheng1
1.Tobacco Research Institute of Chinese Academy of Agricultural Sciences;2.BaoJi Tobacco Company of ShanXi Province;3.Panzhihua Tobacco Company of Sichuan Province
Abstract:
【Objective】Content and composition of soil humus are major factors that may influence yield and quality of flue-cured tobacco. Tobacco is widely planted in China in a number of soils, different, complex and verified in soil-forming factor and soil type. However little information is available now in the literature about characteristics of soil humus composition at a country scale. 【Method】In this study topsoil samples were collected from 425 tobacco fields in 47 tobacco-planting areas typical of the 12 high-quality tobacco production regions of China for analysis of composition of topsoil humus. 【Result】Results show: (1) Total carbon of the soil humus varied in the range of 23.18 ~ 6.04 g·kg-1 with a mean of 13.91 g·kg-1; humic acid carbon, humin acid carbon, humin acid carbon, fulvic acid carbon and H/F ratio did in the range of 12.23 ~ 3.66 g·kg-1, 6.17 ~ 1.41 g·kg-1, 10.95 ~ 2.38 g·kg-1, 6.99 ~ 2.24 g·kg-1 and 1.03 ~ 0.45 with a mean of 8.10 g·kg-1, 3.22 g·kg-1, 5.81 g·kg-1, 4.88 g·kg-1 and 0.72, respectively: (2) Total carbon in humus was significantly higher in Nanling mountain region than in the other regions, but significantly lower in Zhongyuan region and Central Shandong than in the other areas. Humic acid carbon, humin acid carbon and humin carbon was the highest in Nanling mountain area and the lowest in Central Shandong, while humus in Panxi region was relatively high in humin but lower in other components; (3) According to content and composition of soil humus (six indices), the 47 areas could be divided into four groups, differing sharply in humus content and composition.【Conclusion】The tobacco planting areas are quite different in content and composition of humus in topsoil. The areas in South China are higher than those in North China. The 47 areas are sorted into four groups in terms of content and composition of topsoil humus and the four groups vary significantly in humus content and composition.
Key words:  Country-wide  Tobacco-planting soil  Different regions  Humus components  Cluster analysis