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基于空间插值法的遵义烟区植烟土壤养分时空变化
引用本文:张恒,黄莺,刘明宏,丁飞,杨楷,方冲冲.基于空间插值法的遵义烟区植烟土壤养分时空变化[J].中国烟草科学,2020,41(3):36-43.
作者姓名:张恒  黄莺  刘明宏  丁飞  杨楷  方冲冲
作者单位:1. 贵州大学烟草学院, 贵阳 550025;2. 贵州省烟草品质研究重点实验室, 贵阳 550025;3. 贵州省烟草公司遵义市公司, 贵州 遵义 563000
基金项目:贵州省烟草公司遵义市公司科技项目“遵义烤烟大量元素失调症及调控措施研究”(201602);贵州省烟草公司科技项目“基于有机质空间变量的烤烟施肥模型研究”(201909);贵州省高层次创新人才培养计划—百层次人才项目{黔科合平台人才[2016]5663号}
摘    要:为明确遵义烟区近10年田间管理技术对植烟土壤养分的影响,以遵义中部烟区为例,运用反距离权重法对比分析了遵义市播州区、汇川区、新蒲新区2006年和2016年的植烟土壤有机质、全氮、碱解氮、有效磷、缓效钾、速效钾、pH的变化。结果表明,遵义植烟土壤中不同养分含量变化具有差异性,表现在土壤缓效钾和速效钾含量分别增加了36.43%和57.25%;土壤有机质、全氮、碱解氮、有效磷、pH分别下降了23.17%、18.62%、16.78%、49.88%、0.52。在空间分布上,分别有87.2%、81.1%、90%、93.5%、80.0%的土壤有机质、全氮、碱解氮、有效磷、pH呈下降趋势;分别有84.2%、90.2%的土壤缓效钾、速效钾呈增加趋势。养分空间分布的变化规律表征遵义烟区田间施肥和管理技术较为统一;同时显示,遵义烟区应增加有机肥和磷的施用量,维持氮总量,减少无机氮和钾的施用量并根据区域状况进行合理配方施肥。

关 键 词:植烟土壤  反距离权重法  土壤养分  时空变化
收稿时间:2019-12-05

Temporal and Spatial Variations of Soil Nutrients in Zunyi Tobacco Growing Area Based on Spatial Interpolation Method
ZHANG Heng,HUANG Ying,LIU Minghong,DING Fei,YANG Kai,FANG Chongchong.Temporal and Spatial Variations of Soil Nutrients in Zunyi Tobacco Growing Area Based on Spatial Interpolation Method[J].Chinese Tobacco Science,2020,41(3):36-43.
Authors:ZHANG Heng  HUANG Ying  LIU Minghong  DING Fei  YANG Kai  FANG Chongchong
Affiliation:1. Tobacco College of Guizhou University, Guiyang 550025, China;2. Guizhou Key Laboratory for Tobacco Quality Research, Guiyang 550025, China;3. Zunyi Branch of Guizhou Provincial Tobacco Company, Zunyi, Guizhou 563000, China
Abstract:In order to determine the effects of field management practices on tobacco growing soil nutrients in Zunyi tobacco area in the past 10 years, taking the central area of Zunyi as an example, the method of inverse distance weight in ArcGIS was employed to analyse the changes of soil organic matter, total nitrogen, alkali hydrolyzed nitrogen, available phosphorus, slow-release potassium, available potassium and pH in 2006 and 2016 in Bozhou, Huichuan District and Xinpu New District of Zunyi, respectively. Results showed that the variation of nutrient contents in Zunyi tobacco growing soils was distinct. The contents of slow-release potassium and available potassium increased by 36.43% and 57.25%, respectively, while the contents of organic matter, total nitrogen, alkali hydrolyzed nitrogen, available phosphorus and pH decreased by 23.17%, 18.62%, 16.78%, 49.88% and 0.52, respectively. In terms of spatial distribution, the contents of soil organic matter, total nitrogen, available nitrogen and available phosphorus mainly exhibited decreasing trend, accounting for 87.2%, 81.1%, 90%, 93.5% and 80.0% of the total area, respectively, whereas the contents of slow-release potassium and available potassium exhibited increasing trend, accounting for 84.2% and 90.2% of the total area, respectively. The variations of nutrient spatial distribution indicates that the application of field fertilization and management practices is standardized, and its effect on tobacco growing soil in Zunyi tobacco area exhibits identity. The variation of different nutrient contents proved higher application level of organic and phosphorus, maintenance of the current level of total nitrogen, and lower rates of inorganic nitrogen and potassium applied, meanwhile rational formula fertilization should be performed according to local situations.
Keywords:tobacco growing soil  inverse distance weight method  soil nutrient  temporal and spatial variation  
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