云南植烟土壤有机质与养分的关系及主要养分的空间变化

发布时间：2018-08-17 17:20

【摘要】：为明确云南主要植烟产区土壤有机质含量空间分布变化及与其他土壤养分的关系,利用GPS技术采集196个云南烟区土壤样品,运用地统计学、经典统计方法、灰色关联分析方法及Kriging插值法分析云南烟区植烟土壤有机质含量的总体特征、丰缺评价、空间分布变化规律及与土壤养分的相关关系。结果表明,云南烟区植烟土壤有机质含量涵盖缺乏、偏低、适宜、偏高和丰富所有范围,总体上属适宜水平,平均值为24.21 g/kg,变异系数为38.04%,属中等变异,处于适宜范围内的样本占36.13%;文山植烟土壤有机质含量高于红河、昆明、保山和曲靖烟区;土壤有机质含量随着碱解氮的增加而升高,为正相关关系;土壤养分与有机质含量的关联度从高到低依次排列为碱解氮速效磷速效钾氯离子有效硼有效镁有效钙;烟区土壤有机质、碱解氮、氯离子和速效磷呈现明显的区域差异性,为斑块状分布态势;植烟土壤有机质含量总体上从文山的东部和保山的西南部向中部及南部减少,碱解氮从文山的东部、昆明的西部和保山的西南部向中部及南部逐渐减少,速效磷从昆明的西北部和保山的北部向中部及南部逐渐减少,氯离子从红河、文山的中部和昆明、曲靖的北部向南部逐渐减少。
[Abstract]:In order to clarify the spatial distribution of soil organic matter content and its relationship with other soil nutrients in main tobacco growing areas in Yunnan Province, 196 soil samples from Yunnan tobacco growing areas were collected by GPS technique, and geostatistics and classical statistical methods were used. Grey relational analysis and Kriging interpolation were used to analyze the general characteristics of organic matter content in tobacco growing soil in Yunnan Province, the evaluation of abundance and deficiency, the law of spatial distribution and the correlation between organic matter content and soil nutrients. The results showed that the content of organic matter in tobacco growing soils in Yunnan Province was deficient, low, suitable, high and rich in all ranges. The average value was 24.21 g / kg, and the coefficient of variation was 38.04%. The content of organic matter in Wenshan tobacco planting soil was higher than that in Honghe, Kunming, Baoshan and Qujing tobacco areas, and the content of soil organic matter increased with the increase of alkali-hydrolyzed nitrogen, which was a positive correlation. The correlation degree between soil nutrients and organic matter content was in order of alkali-hydrolyzed nitrogen, available phosphorus, available potassium chloride ion, available boron, available magnesium, available calcium, soil organic matter, alkali-hydrolyzed nitrogen, chlorine ion and available phosphorus showed obvious regional differences. The organic matter content of tobacco planting soil decreased from the east of Wenshan Mountain and the southwest of Baoshan to the middle and south, and the alkali-soluble nitrogen gradually decreased from the eastern part of Wenshan Mountain, the west of Kunming and the southwest of Baoshan Mountain to the middle and south, and the soil organic matter content decreased gradually from the east of Wenshan Mountain to the middle and south of Baoshan Mountain. The available phosphorus gradually decreased from the northwest of Kunming and the north to the middle and south of Baoshan, and the chloride ions gradually decreased from the red river, the central part of Wenshan and Kunming, the north of Qujing to the south.
【作者单位】：红云红河(烟草)集团有限责任公司;云南省农业科学院农业环境资源研究所;云南中烟工业有限责任公司技术中心;
【基金】：红云红河(烟草)集团有限责任公司科技项目“提高云烟品牌原料基地山地烟叶可用性研究”(编号:HYHH2013YL03)
【分类号】：S158.3;S572

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