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韩素芳 , 程诗明, 付金贤, 屈明华, 刘亚群, 徐梁, 成亮. 浙江省油茶土壤肥力评价最小数据集研究[J]. 浙江林业科技, 2021, 41(1): 8-15. DOI: 10.3969/j.issn.1001-3776.2021.01.002
引用本文: 韩素芳 , 程诗明, 付金贤, 屈明华, 刘亚群, 徐梁, 成亮. 浙江省油茶土壤肥力评价最小数据集研究[J]. 浙江林业科技, 2021, 41(1): 8-15. DOI: 10.3969/j.issn.1001-3776.2021.01.002
HAN Su-fang, CHENG Shi-ming, FU Jin-xian, QU Ming-hua, LIU Ya-qun, XU Liang, CHENG Liang. Study on Minimum Data Set for Evaluating Soil Fertility of Camellia oleifera in Zhejiang Province[J]. Journal of Zhejiang Forestry Science and Technology, 2021, 41(1): 8-15. DOI: 10.3969/j.issn.1001-3776.2021.01.002
Citation: HAN Su-fang, CHENG Shi-ming, FU Jin-xian, QU Ming-hua, LIU Ya-qun, XU Liang, CHENG Liang. Study on Minimum Data Set for Evaluating Soil Fertility of Camellia oleifera in Zhejiang Province[J]. Journal of Zhejiang Forestry Science and Technology, 2021, 41(1): 8-15. DOI: 10.3969/j.issn.1001-3776.2021.01.002

浙江省油茶土壤肥力评价最小数据集研究

Study on Minimum Data Set for Evaluating Soil Fertility of Camellia oleifera in Zhejiang Province

  • 摘要: 于2015-2016 年10 月底至11 月初,采集6 个浙江省油茶Camellia oleifera 主产区20 个县(市、区)150个土壤样品,检测其全效、速效养分及中、微量元素等13 个肥力指标,对全量数据集做主成分分析,选取高因子载荷指标,确定浙江省油茶土壤肥力评价最小数据集。结果表明,浙江省油茶主产区土壤肥力最小数据集为全N、有效P、交换性Ca、交换性Mg、有效Cu、有效Fe 这六6 个指标。利用抛物线形隶属度函数对肥力指标进行标准化,结合权重系数得出各样区最小数据集肥力指数。最小数据集肥力指数与单位面积茶油年均产量间的相关性分析结果表明,最小数据集肥力指数与单位面积茶油年产量间呈显著正相关,与全量数据集内梅罗综合指数间呈极显著正相关。

     

    Abstract: From the end of October to the beginning of November in 2015 and 2016, 150 soil samples were collected from Camellia oleifera stands intwenty counties of 6 main producing regions of Zhejiang province. Determinations were made on 13 indicators of fertility, such as total nutrients,available nutrients and microelements, etc. Principal component analysis on total data set demonstrated that the minimum data set included thefollowing six indexes, total nitrogen, phosphorus, exchangeable calcium, exchangeable magnesium, available copper, and available iron. The fertilityindex was standardized by parabolic shape function, and the minimum data set fertility index was calculated according to weight coefficient. Thecorrelation analysis showed that the fertility index of minimum data set had significant positive correlation with annual tea oil yield, and extremelysignificant positive correlation with nemero comprehensive index.

     

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