摘要
为了解湘西州植烟土壤有效锌含量分布状况,测试了湘西州主要烟区488个土壤样本的有效锌含量,采用传统统计学和地统计学方法分析了湘西州植烟土壤有效锌含量适宜样本分布、县域差异、土壤类型差异、海拔差异及空间分布。结果表明:①湘西州植烟土壤有效锌含量总体上略偏高,平均值为2.08 mg/kg,变幅为0.23～6.09 mg/kg,变异系数为51.45%,处于适宜范围内的样本占28.69%。②不同县之间的植烟土壤有效锌含量差异达极显著水平,按从高到低依次为:凤凰县>龙山县>永顺县>花垣县>保靖县>古丈县>芦溪县。③不同土壤类型土壤有效锌含量差异极显著,按从高到低依次为:灰黄棕土>浅灰黄泥>灰黄泥>红壤>水稻土>石灰土>灰黄土>黄壤。④不同海拔高度的植烟土壤有效锌含量差异达极显著水平,有随海拔高度的升高而有效锌含量增高的趋势。⑤植烟土壤有效锌含量Kriging插值图显示,湘西州植烟土壤有效锌含量呈有规律地分布,总体上是从北部和西南部分别向中部递减。
In order to understand the distribution of available zinc contents of tobacco growing soils in Xiangxi,distribution frequency of available zinc contents,difference of different county,difference of different soil types,difference of different altitude and Spatial distribution of available zinc contents were analyzed by collected 488 soil samples.The results were as follows：（1） available zinc contents in the tobacco soil is little higher with a mean of 2.08 mg/kg,amplitude of 0.23~6.09 mg/kg and variation coefficient of 51.45%.About 28.69% of the soil samples of available zinc contents is suitable for tobacco cultivation.（2） there is extremely significant differences among the contents of available zinc in the different counties,and the order of available zinc content in soil for different counties were FenghuangLongshanYongshunHuayuanBaojingGuzhangLuxi.（3） there is extremely significant differences among the contents of available zinc in the different soil types and the order of available zinc content in soil for different soil types were yellow-brown ash soillight yellow ash mudyellow ash mudred soilpaddy fieldlime soilyellow ash soilyellow soil.（4）there existed extremely significant differences among the contents of available zinc in the different altitude.The contents of available zinc was increasing with the rise of altitude in tobacco growing soils of Xiangxi.（5） Kriging interpolation map indicated that the spatial distributions of available zinc were regularly distribution and reduced from the northern and south-western to the middle.
出处
《云南农业大学学报（自然科学版）》
CAS
CSCD
北大核心
2012年第2期210-214,240,共6页
Journal of Yunnan Agricultural University:Natural Science
基金
湘西州烟草公司项目(2011Bo165)
国家烟草专卖局特色优质烟叶开发重大专项(11-14Aa02)
关键词
湘西州烟区
植烟土壤
有效锌
空间分布
Xiangxi tobacco growing areas
tobacco-growing soil
available zinc
spatial distribution
