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当前位置: 首页 > 文章 > 浏阳植烟土壤pH和有机质时空变异及丰缺评价 云南农业大学学报(自然科学) 2017,V32 (1) 134-139
Position: Home > Articles > Temporal and Spatial Variability of Soil p H and SOM in Liuyang Journal of Yunnan Agricultural University(Natural Science) 2017,V32 (1) 134-139

浏阳植烟土壤pH和有机质时空变异及丰缺评价

作  者：
唐春闺;李帆;杨红武;向世鹏;李强
单  位：
湖南农业大学烟草研究院;湖南省烟草公司长沙市公司
关键词：
烟区;土壤;pH;有机质;时空变异
摘  要：
为探明浏阳烟区土壤pH和有机质时空变异特征,并为土壤pH和有机质合理管控提供参考,以浏阳市2000年和2014年耕地土壤pH和有机质为研究对象,利用半方差函数及克里格插值等方法,对县域土壤pH和有机质时空变异特征和丰缺状况进行了评价。结果表明:14年间土壤pH提高了0.30,增幅为5.57%,土壤有机质下降了2.89 g/kg,降幅为8.89%;14年来土壤有机质和pH块金效应增加,说明土壤有机质和pH空间结构减弱,随机变异性增强;土壤pH适宜等级的面积比2000年增加了29.07%,低等级的面积比2000年减少了28.59%;有机质含量适宜等级的面积比2000年减少了8.39%,高等级的耕地面积比2000年增加了8.15%。由此可见,浏阳烟区植烟土壤酸碱度变得更适宜烤烟生产,而有机质含量两极分化严重,变得不利于烤烟生产,因此在生产上应继续坚持施用生石灰的调节土壤pH,同时针对不同区域有机质的变化做好有机物料投入工作。
译  名：
Temporal and Spatial Variability of Soil p H and SOM in Liuyang
作  者：
TANG Chungui;LI Fan;YANG Hongwu;XIANG Shipeng;LI Qiang;Hunan Provincial Tobacco Company Changsha Branch;Tobacco Research Institute,Hunan Agricultural University;
关键词：
tobacco area;;soil;;pH;;SOM;;spatiotemporal variation
摘  要：
In order to investigate the Liuyang tobacco growing areas,soil pH and organic matter spatial and temporal variability and soil pH and organic matter of reasonable control provide a reference to Liuyang City in 2000 and 2014 farmland soil pH and organic matter as the research object,using semivariance and Kriging interpolation method,the county soil pH and organic matter spatio-temporal variation characteristics and the condition of abundance or deficiency were evaluated. The results showed that 14 years with the increase of pH 0. 30,an increase of 5. 57%,soil organic matter fell 2. 89,a decline of8. 89%; 14 years to increase the soil nugget effect that decreased soil available phosphorus spatial structure,enhance the random variability; soil pH "appropriate " level of area than in 2000 increased29. 07%,the area of "low"rating than in 2000 reduced 28. 59%; organic matter content "appropriate"area ratio in 2000 decreased 8. 39%,"high " levels of cultivated land area than in 2000 increased8. 15%. Thus,soil pH of tobacco is becoming more suitable for planting tobacco,and soil organic matter is becoming less suitable for planting tobacco,so quicklime should be applied continuously to regulating soil pH,and organic material should be applied according to content of organic matter of different regional.

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