[1]覃祚玉,曹继钊,唐健,等.基于主成分分析和模糊数学法的桉树人工林土壤肥力质量评价[J].浙江林业科技,2021,41(05):8-14.[doi:10.3969/j.issn.1001-3776.2021.05.002]
 QIN Zuo-yu,CAO Ji-zhao,TANG Jian,et al.Assessment of Soil Fertility in Eucalyptus Plantation in Guangxi by Principal Component Analysis and Fuzzy Mathematics[J].Journal of Zhejiang Forestry Science and Technology,2021,41(05):8-14.[doi:10.3969/j.issn.1001-3776.2021.05.002]
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基于主成分分析和模糊数学法的桉树人工林土壤肥力质量评价()
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《浙江林业科技》[ISSN:1001-3776/CN:33-1112/S]

卷:
41
期数:
2021年05期
页码:
8-14
栏目:
论著
出版日期:
2021-10-10

文章信息/Info

Title:
Assessment of Soil Fertility in Eucalyptus Plantation in Guangxi by Principal Component Analysis and Fuzzy Mathematics
文章编号:
1001-3776(2021)05-0008-07
作者:
覃祚玉123曹继钊123唐健123邓小军123潘波123宋贤冲123
(1. 广西林业科学研究院,广西南宁530002;2. 国家林业局中南速生材繁育实验室,广西南宁 530002; 3. 广西优良用材林资源培育重点实验室,广西南宁530002)
Author(s):
QIN Zuo-yu123CAO Ji-zhao123TANG Jian123DENG Xiao-jun123PAN Bo123SONG Xian-chong123
(1. Guangxi Zhuang Autonomous Region Forestry Research Institute, Nanning 530002, China; 2. Key Laboratory of Central South Fast-growing Timber Cultivation of State Forestry Administration, Nanning 530002, China; 3. Guangxi Key Laboratory of Superior Timber Tree Resource Cultivation, Nanning 530002, China)
关键词:
土壤肥力评价模糊统计主成分分析聚类分析桉树人工林广西
Keywords:
soil fertility evaluation fuzzy mathematics principal component analysis cluster analysis Eucalyptus plantations Guangxi
分类号:
S714.8
DOI:
10.3969/j.issn.1001-3776.2021.05.002
文献标志码:
A
摘要:
2017年11—12月,对广西林业沃土工程8个试点单位的1 ~ 2年生桉树Eucalyptus人工林的270个土壤样品进行了土壤pH和14种养分指标测定,并结合主成分分析、聚类分析及模糊数学隶属度函数法,对广西桉树人工林土壤肥力质量进行综合评价。结果表明,广西桉树人工林土壤均为酸性土壤,土壤中的交换性钙含量较为丰富,土壤有机质、全氮、全钾、碱解氮、交换性镁、有效铜、有效锌、有效硼、有效锰含量适中,全磷、有效磷、速效钾、有效铁处于贫乏水平,其中土壤有机质、碱解氮、有效磷、有效硼、有效铁、速效钾为土壤肥力的主要影响因子。采用系统聚类法将土壤肥力综合指标值(IFI)划分为I级(优)、II级(良)、III级(中等)、IV级(较差)、V级(差)5个等级,广西桉树人工林土壤肥力综合指数范围为0.160 ~ 0.678,土壤肥力总体属于中等偏低水平,属于优良以上(优、良)水平仅有15.5%。8个试点单位的土壤肥力质量以较差(IV)等级为主,中等(III)、差(V)等级次之。根据评价结果,建议低肥力土壤林地需增施有机肥,适量补充氮磷钾肥,并有针对性添加铁肥和硼肥。
Abstract:
From November to December 2017, 270 soil samples were collected under Eucalyptus plantation from eight forest farms, Guangxi Zhuang Autonomous Region. Soil pH and 14 soil fertility indicators were determined and comprehensive evaluation of the soil fertility for Eucalyptus plantation was carried out by the methods of principal component analysis and fuzzy mathematics. The results showed that Eucalyptus plantation soil showed acid, rich in exchangeable Ca content. Contents of soil organic matter, total N, total K, alkali-hydrolyzable N, exchangeable Mg, available Cu, available B and available Zn were at medium level, while that of soil total P, available P, available K and available Fe contents were insufficient. Contents of soil organic matter, alkali-hydrolyzable N, available P, available K, available Fe and available B contents were the main factors affecting the soil fertility. According to integrated fertility index, the soil fertility of Eucalyptus plantation from eight forest farms was 0.160-0.678, dominated by grade IV, followed by grade III and V.

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备注/Memo

备注/Memo:
收稿日期:2020-04-24;修回日期:2021-08-07
基金项目:广西创新驱动发展专项资金项目课题(桂科AA17204087-11);广西科技基地和人才专项(桂科AD17129051);广西林业科技推广示范项目(gl2017kt15)
作者简介:覃祚玉,硕士,工程师,从事植物营养与土壤肥料研究;E-mail:474050475@qq.com。通信作者:唐健,博士,教授高级工程师,从事植物营养与土壤肥料研究;E-mail:21712104@qq.com。
更新日期/Last Update: 2021-10-10