[1]熊新武,李俊南,浦文静,等. 基于Nemerow法的核桃林土壤肥力分析与评价[J].西北林学院学报,2020,35(3):126-132.[doi:10.3969/j.issn.1001-7461.2020.03.20]
 XIONG Xin-wu,LI Jun-nan,PU Wen-jing,et al. Soil Fertility Analysis and Evaluation of Walnut Grove Based on Nemerow Method[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2020,35(3):126-132.[doi:10.3969/j.issn.1001-7461.2020.03.20]
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 基于Nemerow法的核桃林土壤肥力分析与评价()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第35卷
期数:
2020年第3期
页码:
126-132
栏目:
出版日期:
2020-05-31

文章信息/Info

Title:
 Soil Fertility Analysis and Evaluation of Walnut Grove Based on Nemerow Method
文章编号:
1001-7461(2020)03-0126-07
作者:
 熊新武1李俊南1浦文静2杨万超2江期川3梁林波1郭玉红3*
 (1.云南省林业科学院 漾濞核桃研究院,云南 漾濞 672500;2.维西县林业局,云南 维西 674600;3.云南省林业科学院,云南 昆明 650201)
Author(s):
 XIONG Xin-wu1LI Jun-nan1PU Wen-jing2YANG Wan-chao2JIANG Qi-chuan3LIANG Lin-bo1GUO Yu-hong3*
 (1.Yangbi Walnut Research Iinstitute,Yunnan Academy of Forestry,Yangbi 672500,Yunnan,China; 2.Weixi County Forestry Bureau,Weixi 674600,Yunnan,China; 3.Yunnan Academy of Forestry,Kunming 650201,Yunnan,China)
关键词:
 核桃林Nemerow法土壤肥力评价维西县
Keywords:
 walnut grove soil fertility evaluation Nemerow method Weixi County
分类号:
S727.33
DOI:
10.3969/j.issn.1001-7461.2020.03.20
文献标志码:
A
摘要:
 研究云南核桃和新疆核桃林土壤肥力状况,探索核桃林土壤肥力的主要影响因子,为核桃林地平衡施肥提供参考依据。以维西县核桃林为对象,采集核桃林地深0~20、20~40、40~60 cm 3个土层90个样点的土壤,测定pH、有机质、碱解N、有效P、速效K等因子,运用Nemerow法和第2次土壤普查分级标准进行土壤肥力综合评价。结果表明:1)土壤养分因子变异系数在10.0%~133.3%,速效K属于强变异;pH总体均值为6.51,呈弱酸性,随着土层深度的增加,pH呈上升趋势;有机质和碱解N总体均值分别为25.2 mg·kg-1和78.8 mg·kg-1,均分布在Ⅲ、Ⅳ级,有机质属中上水平,碱解N属中等水平,二者均表现为明显的表聚现象和随土层深度的增加含量下降的相似性;有效P总体均值为9.66 mg·kg-1,分布在Ⅲ、Ⅳ级,属中等水平;速效K总体均值为69.4 mg·kg-1,分布在Ⅳ、Ⅴ、Ⅵ级,属低水平。2)核桃林土壤的有机质、碱解N、有效P、速效K 4个养分因子均表现为0~20 cm土层含量最高,随着土层深度的增加,含量总体均呈下降趋势,差异显著性分析表明各采样点和各土层之间4个养分因子均表现为差异显著。3)Nemerow法评价结果显示,该研究区域内核桃林土壤综合肥力指数均值为1.37,肥力指数最高1.54,最低1.12,属于中等水平,速效K是研究区域内核桃林地的主要限制因子。
Abstract:
 The purpose of this study was to investigate the soil fertility of walnut grove to offer reference for the balanced fertilization in walnut cultivation.The experiment was conducted in Weixi County of Yunnan Province.Soil samples were collected from three soil layers (0-20,20-40,and 40-60 cm) in 90 plots,of which relative parameters were measured,such as pH,organic matter (OM),alkali-hydrolyzed nitrogen (Navl-alk),available phosphorus (Pavl),and available potassium (Kavl).Based on Nemerow method and grading standard of the Second National General Soil Survey,the soil fertility was assessed comprehensively.The results showed that 1) the variation coefficients of soil nutrients were between 10.01% and 133.29%,in which the Kavl varied most significantly.The average soil pH was 6.51,which was in the range of weak acidity.It increased with soil depth.The average of soil OM and Navl-alk were 25.2 and 78.8 mg·kg-1,respectively,which ranged between class Ⅲ and Ⅳ.The fertility of OM was in the level of above the average,and the Navl-alk was in average level.Both soil OM and Navl-alk presented surface aggregation phenomena,and decreased with soil depth.The average of soil Pavl was 9.66 g·kg-1,ranged in class Ⅲ and Ⅳ,belonging to middle level.The average of Kavl was 69.4 mg·kg-1,it ranked in class Ⅳ,Ⅴ and Ⅵ,belonging to middle and low levels.2) All the soil nutrients (OM,Navl,Pavl,and Kavl) were highest in 0-20 cm soil layer,and decreased with soil depth.Significant differences in the contents of soil nutrients were observed among different sample sites and soil layers.3) The evaluation results based on Nemerow method indicated that the average of fertility index was 1.37 (1.54 in maximum and 1.12 in minimum),the soil fertility was in medium level.Kavl was the main limiting factor in the research area.

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备注/Memo

备注/Memo:
 收稿日期:2019-07-10修回日期:2019-10-21
基金项目:中央财政林业科技推广([2017]TG14);云南省重大科技专项计划专题(2018ZG001-01);云南省科技创新人才计划(2018HC015);维西县林业局“维西核桃提质增效技术研究”。
作者简介:熊新武。研究方向:经济林遗传育种与栽培。E-mail:394594019@qq.com
*通信作者:郭玉红,高级工程师。研究方向:经济林栽培。E-mail:gyuhong@126.com
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