摘要
采用描述统计与GIS技术结合的方法,对罗平县12个植烟乡镇基本烟田,共计210个不同类型土壤p H与有机质含量的空间分布特征进行分析。结果表明:1)罗平县植烟土壤p H值4.61~8.06,平均为6.58;从p H值空间分布来看,大体上呈现从西北到东南逐渐升高的趋势。2)罗平县不同海拔的植烟土壤p H值均在适宜范围,随着海拔的升高,p H呈降低趋势。3)罗平县不同类型土壤以紫色土p H最低,极显著低于其他土壤类型。4)罗平县植烟土壤有机质含量4.20~164.13g/kg,平均为43.10g/kg,罗平各乡镇植烟土壤有机质平均含量均在30g/kg以上,从有机质含量空间分布来看,大体上呈现西北高于东南的趋势。5)随着海拔的升高,土壤有机质呈上升趋势,各海拔植烟土壤有机质均十分丰富,均在30g/kg以上。6)各类型植烟土壤有机质含量均在30g/kg以上,有机质最高的新积土含量为53.04g/kg,较低的是水稻土(34.97g/kg)和黄壤(39.36g/kg)。
The 210 different types of soil, pH and spatial distribution characteristics of organic matter content, were studied through descriptive statistic analysis and GIS technology in the 12 tobacco planting towns of Qujing Luoping county .The results showed that: 1 ) The tobacco soil pH is 4.61 - 8.06, and with an average of 6.58. The tobacco soil pH generally shows a tendency of increase gradually from northwest to southeast according to the spatial distribution of pH. 2 ) The tobacco soil pH values were in appropriate range of different elevation, pH value is tend to decline with increasing elevation.3 ) The purple soil pH is the lowest and significantly lower than that of other soil types. 4 ) The organic matter content of planting tobacco soil is 4.20 164.13g/kg, with an average of 43.10g/kg. The organic matter content of the different towns planting tobacco soil are all more than 30g/kg on average. The organic content generally shows the tendency of northwest is higher than the southeast according to the spatial distribution of organic content. 5 ) The soil organic matter content is on the rise with the increase of altitude. The content are very rich in all the altitude plant tobacco soil and more than 30g/kg. 6 ) The organic matter content of each types of plant tobacco soil are more than 30 g/kg. The highest one is alluvial soils ( 53.04g/kg ) , the paddy soil ( 34.97g/kg ) and the yellow soil ( 39.36g/kg ) are at a low level.
作者
周强
张润明
Zhou Qiang, Zhang Runming(Technical Center of Gansu Tobacco Industrial Co. Ltd, Gansu Lanzhou 730050)
出处
《中国农业文摘(农业工程)》
2018年第3期47-51,共5页
Agricultural Science and Engineering in China
基金
云南省烟草公司项目"曲靖市精益烟叶生产研究与应用"(2014YN24)
关键词
烤烟
土壤
PH
有机质
罗平县
Flue-cured tobacco
Soil
pH
Organic matter content
Luoping