Article(id=1149768568440533982, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1149768563956826506, articleNumber=null, orderNo=null, doi=10.12404/j.issn.1671-1815.2406677, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1725465600000, receivedDateStr=2024-09-05, revisedDate=1742745600000, revisedDateStr=2025-03-24, acceptedDate=null, acceptedDateStr=null, onlineDate=1752055788382, onlineDateStr=2025-07-09, pubDate=1749312000000, pubDateStr=2025-06-08, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1752055788382, onlineIssueDateStr=2025-07-09, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1752055788382, creator=13701087609, updateTime=1752055788382, updator=13701087609, issue=Issue{id=1149768563956826506, tenantId=1146029695717560320, journalId=1146123166801305609, year='2025', volume='25', issue='16', pageStart='6587', pageEnd='7021', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1752055787314, creator=13701087609, updateTime=1768456850262, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1218559607937618069, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1149768563956826506, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1218559607937618070, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1149768563956826506, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=6682, endPage=6689, ext={EN=ArticleExt(id=1149768568667026399, articleId=1149768568440533982, tenantId=1146029695717560320, journalId=1146123166801305609, language=EN, title=Spatial Heterogeneity and Fertility Evaluation of Soil Nutrients in Main Potato Producing Areas, columnId=1156262738117649382, journalTitle=Science Technology and Engineering, columnName=Papers·Agricultural Science, runingTitle=null, highlight=null, articleAbstract=
The spatial variation characteristics of soil fertility in potato growing area were clarified to provide theoretical basis for soil precise fertilization and fertilizer management in the study area. Taking Keshan Farm in Heilongjiang Province as the study area, 100 sample points were selected in the potato growing area, and soil pH, organic matter, total nitrogen, total phosphorus and total potassium were selected as the indicators to evaluate soil fertility. Geostatistics and geographic information system(GIS) were combined to analyze the spatial variation characteristics of soil nutrients, and soil comprehensive evaluation method was used to evaluate soil fertility in the study area. Results show that the soil is weakly acidic and the pH variation coefficient is small. The contents of organic matter, total nitrogen, total phosphorus and total potassium are at medium and high levels, belonging to moderate intensity variation. Soil pH is a moderate spatial autocorrelation, and the spatial autocorrelation of organic matter, total nitrogen, total phosphorus and total potassium is weak. The spatial accumulation of organic matter and total nitrogen is significant. The spatial variation of soil nutrients in the study area is obvious, showing an east-west direction, and the content of soil nutrients in the middle of the study area is relatively low. The soil fertility in the study area is above the medium level, and the area with good fertility accounts for 72% of the total area. The soil fertility of Keshan farm is good, which can meet the needs of potato growth. Human factors are the main factors affecting soil nutrient content.
, correspAuthors=Zhong-jun LU, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=Ting WANG, Zhong-jun LU, Rui XIN, Nan HUANG, Ke-bao LIU, Bin FU, Yan-xia LIU, Jing NING), CN=ArticleExt(id=1149768573243011073, articleId=1149768568440533982, tenantId=1146029695717560320, journalId=1146123166801305609, language=CN, title=马铃薯主产区土壤养分空间异质性及其肥力评价, columnId=1156262738235089896, journalTitle=科学技术与工程, columnName=论文·农业科学, runingTitle=null, highlight=null, articleAbstract=
明确马铃薯种植区土壤肥力空间变异特征,为研究区马铃薯土壤精准施肥和培肥管理提供理论依据。以黑龙江省克山农场为研究区,在马铃薯种植区采取100个样点,选取土壤pH、有机质、全氮、全磷和全钾作为评价土壤肥力的指标,采用地统计学和地理信息系统(geographic information system,GIS)相结合,分析土壤养分的空间变异特征,并利用土壤肥力综合评价法评价研究区土壤肥力。结果表明:土壤呈弱酸性,pH变异系数小;有机质、全氮、全磷、全钾的含量处于中高水平,属于中等强度变异。土壤pH属于中等强度空间自相关,有机质、全氮、全磷、全钾的空间自先关较弱。有机质和全氮的空间聚集性显著。研究区土壤养分空间变化特征明显,呈东西方向变化,中部土壤养分含量相对偏低。研究区土壤肥力处于中等以上水平,肥力良好的面积占总面积的72%。克山农场土壤肥力良好,满足马铃薯生长需求。人为因素是影响土壤养分含量的主要因素。
, correspAuthors=陆忠军, authorNote=null, correspAuthorsNote=
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, authorsList=王婷, 陆忠军, 辛蕊, 黄楠, 刘克宝, 付斌, 刘艳霞, 宁静)}, authors=[Author(id=1178019271096549703, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=2102439644@qq.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1178019271163658568, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, authorId=1178019271096549703, language=EN, stringName=Ting WANG, firstName=Ting, middleName=null, lastName=WANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1 Institute of Agricultural Remote Sensing and information, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1178019271239156041, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, authorId=1178019271096549703, language=CN, stringName=王婷, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1 黑龙江省农业科学院农业遥感与信息研究所, 哈尔滨 150086, bio={"content":"
王婷(1995—),女,汉族,黑龙江哈尔滨人,硕士,研究实习员。研究方向:土地生态。E-mail:2102439644@qq.com。
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王婷(1995—),女,汉族,黑龙江哈尔滨人,硕士,研究实习员。研究方向:土地生态。E-mail:2102439644@qq.com。
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1 Institute of Agricultural Remote Sensing and information, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1178019272229011800, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, authorId=1178019272107376981, language=CN, stringName=黄楠, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1 Institute of Agricultural Remote Sensing and information, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1178019272564556125, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, authorId=1178019272426144090, language=CN, stringName=刘克宝, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1 Institute of Agricultural Remote Sensing and information, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1178019272963015015, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, authorId=1178019272820408676, language=CN, stringName=刘艳霞, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2 东北农业大学公共管理与法学院, 哈尔滨 150030)])])], keywords=[Keyword(id=1178019273277587821, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, language=EN, orderNo=1, keyword=soil nutrients), Keyword(id=1178019273353085294, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, language=EN, orderNo=2, keyword=spatial variation), Keyword(id=1178019273449554287, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, language=EN, orderNo=3, keyword=geographical statistics), Keyword(id=1178019273516663152, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, language=EN, orderNo=4, keyword=comprehensive evaluation of soil fertility), Keyword(id=1178019273613132145, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, language=CN, orderNo=1, keyword=土壤养分), Keyword(id=1178019273688629618, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, language=CN, orderNo=2, keyword=空间变异), Keyword(id=1178019273755738483, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, language=CN, orderNo=3, keyword=地统计), Keyword(id=1178019273835430260, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, language=CN, orderNo=4, keyword=土壤肥力综合评价)], refs=[Reference(id=1178019276364595593, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, doi=null, pmid=null, pmcid=null, year=2011, volume=17, issue=6, pageStart=1342, pageEnd=1350, url=null, language=null, rfNumber=[1], rfOrder=0, authorNames=徐新朋, 赵士诚, 张云贵, journalName=植物营养与肥料学报, refType=null, unstructuredReference=徐新朋, 赵士诚, 张云贵, 等. 吉林省玉米种植区土壤养分空间变异特征研究[J].
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1 黑龙江省农业科学院农业遥感与信息研究所, 哈尔滨 150086)]), AuthorCompany(id=1178019271008469314, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, xref=2, ext=[AuthorCompanyExt(id=1178019271021052227, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, companyId=1178019271008469314, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 School of Public Administration and Law, Northeast Agricultural University, Harbin 150030, China), AuthorCompanyExt(id=1178019271046218052, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, companyId=1178019271008469314, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 东北农业大学公共管理与法学院, 哈尔滨 150030)])], figs=[ArticleFig(id=1178019274070311285, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, language=EN, label=Fig.1, caption=
Spatial location and sampling point distribution of Keshan Farm, figureFileSmall=GxoVcY5h25LMz7xViS/kiA==, figureFileBig=WgkjKUQP1C/HB2Qu9E9/Wg==, tableContent=null), ArticleFig(id=1178019274187751798, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, language=CN, label=图1, caption=
克山农场空间位置及采样点分布 基于自然资源部标准地图服务网站下载的审图号为GS(2024)0650号的标准地图制作,底图无修改
, figureFileSmall=GxoVcY5h25LMz7xViS/kiA==, figureFileBig=WgkjKUQP1C/HB2Qu9E9/Wg==, tableContent=null), ArticleFig(id=1178019274250666359, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, language=EN, label=Fig.2, caption=
Spatial distribution of soil nutrients, figureFileSmall=X0K6lQ/1MM553YCrZ3ko+Q==, figureFileBig=o/mb7WesG1t9HoTcD/PXTw==, tableContent=null), ArticleFig(id=1178019274313580920, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, language=CN, label=图2, caption=
土壤养分空间分布, figureFileSmall=X0K6lQ/1MM553YCrZ3ko+Q==, figureFileBig=o/mb7WesG1t9HoTcD/PXTw==, tableContent=null), ArticleFig(id=1178019274389078393, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, language=EN, label=Fig.3, caption=
Spatial distribution of soil fertility levels, figureFileSmall=XwV61OAf4y5p+rxEEHitDQ==, figureFileBig=LEDfznSNJtXf54BdgPd+UQ==, tableContent=null), ArticleFig(id=1178019274464575866, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, language=CN, label=图3, caption=
土壤肥力等级空间分布, figureFileSmall=XwV61OAf4y5p+rxEEHitDQ==, figureFileBig=LEDfznSNJtXf54BdgPd+UQ==, tableContent=null), ArticleFig(id=1178019274535879035, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, language=EN, label=Table 1, caption=
Weights of evaluation indicators
, figureFileSmall=null, figureFileBig=null, tableContent=
| 指标 | pH | 有机质/ (g·kg-1) | 全氮/ (g·kg-1) | 全磷/ (g·kg-1) | 全钾/ (g·kg-1) |
相关系数 平均值 | 0.30 | 0.31 | 0.24 | 0.42 | 0.18 |
| 权重 | 0.21 | 0.22 | 0.17 | 0.29 | 0.12 |
), ArticleFig(id=1178019274615570812, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, language=CN, label=表1, caption=
评价指标权重
, figureFileSmall=null, figureFileBig=null, tableContent=
| 指标 | pH | 有机质/ (g·kg-1) | 全氮/ (g·kg-1) | 全磷/ (g·kg-1) | 全钾/ (g·kg-1) |
相关系数 平均值 | 0.30 | 0.31 | 0.24 | 0.42 | 0.18 |
| 权重 | 0.21 | 0.22 | 0.17 | 0.29 | 0.12 |
), ArticleFig(id=1178019274674291069, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, language=EN, label=Table 2, caption=
Soil fertility classification standards in Northeast China
, figureFileSmall=null, figureFileBig=null, tableContent=
| 指标 | 土壤肥力分级 |
| 高 | 较高 | 中 | 较低 | 低 |
| pH | 6.0~7.5 | 5.5~6.0 | 5.0~5.5 | 4.5~5.0 | <4.5 |
有机质含量/ (g·kg-1) | >40 | 30~40 | 20~30 | 10~20 | <10 |
全氮含量/ (g·kg-1) | >2.5 | 1.5~2.5 | 1~1.5 | 0.5~1 | <0.5 |
全磷含量/ (g·kg-1) | >1 | 0.8~1 | 0.6~0.8 | 0.5~0.6 | <0.5 |
全钾含量/ (g·kg-1) | >25 | 20~25 | 15~20 | 10~15 | <10 |
), ArticleFig(id=1178019274749788542, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, language=CN, label=表2, caption=
东北地区土壤肥力分级标准
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| 指标 | 土壤肥力分级 |
| 高 | 较高 | 中 | 较低 | 低 |
| pH | 6.0~7.5 | 5.5~6.0 | 5.0~5.5 | 4.5~5.0 | <4.5 |
有机质含量/ (g·kg-1) | >40 | 30~40 | 20~30 | 10~20 | <10 |
全氮含量/ (g·kg-1) | >2.5 | 1.5~2.5 | 1~1.5 | 0.5~1 | <0.5 |
全磷含量/ (g·kg-1) | >1 | 0.8~1 | 0.6~0.8 | 0.5~0.6 | <0.5 |
全钾含量/ (g·kg-1) | >25 | 20~25 | 15~20 | 10~15 | <10 |
), ArticleFig(id=1178019274812703103, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, language=EN, label=Table 3, caption=
Turning points of indicators
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| 指标 | pH | 全氮含量/ (g·kg-1) | 有机质含量/ (g·kg-1) | 全磷含量/ (g·kg-1) | 全钾含量/ (g·kg-1) |
| x1 | 5.5 | 1.0 | 20 | 0.8 | 15 |
| x2 | 6.5 | 2.5 | 50 | 1.0 | 20 |
| x3 | 7.0 | — | — | — | — |
| x4 | 7.5 | — | — | — | — |
), ArticleFig(id=1178019274896589184, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, language=CN, label=表3, caption=
各指标转折点
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| 指标 | pH | 全氮含量/ (g·kg-1) | 有机质含量/ (g·kg-1) | 全磷含量/ (g·kg-1) | 全钾含量/ (g·kg-1) |
| x1 | 5.5 | 1.0 | 20 | 0.8 | 15 |
| x2 | 6.5 | 2.5 | 50 | 1.0 | 20 |
| x3 | 7.0 | — | — | — | — |
| x4 | 7.5 | — | — | — | — |
), ArticleFig(id=1178019275026612609, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, language=EN, label=Table 4, caption=
Descriptive characteristics of soil nutrients
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| 指标 | 样点数 | 最小值 | 最大值 | 均值 | 标准差 | 偏度 | 峰度 | 变异系数/% | 分布类型 |
| pH | 100 | 5.25 | 6.59 | 5.84 | 0.27 | -0.04 | 0.32 | 4.58 | 正态分布 |
| 有机 | 100 | 27.97 g/kg | 58.37 g/kg | 41.81 g/kg | 6.75 | -0.01 | -0.51 | 16.13 | 正态分布 |
| 全氮 | 100 | 0.97 g/kg | 2.84 g/kg | 1.86 g/kg | 0.33 | 0.02 | 0.56 | 17.67 | 正态分布 |
| 全磷 | 100 | 0.72 g/kg | 1.33 g/kg | 0.98 g/kg | 0.13 | 0.36 | -0.05 | 13.42 | 对数正态 |
| 全钾 | 100 | 13.78 g/kg | 22.53 g/kg | 18.34 g/kg | 2.51 | -0.18 | -1.35 | 13.69 | 正态分布 |
), ArticleFig(id=1178019275110498690, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, language=CN, label=表4, caption=
土壤养分描述性特征
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| 指标 | 样点数 | 最小值 | 最大值 | 均值 | 标准差 | 偏度 | 峰度 | 变异系数/% | 分布类型 |
| pH | 100 | 5.25 | 6.59 | 5.84 | 0.27 | -0.04 | 0.32 | 4.58 | 正态分布 |
| 有机 | 100 | 27.97 g/kg | 58.37 g/kg | 41.81 g/kg | 6.75 | -0.01 | -0.51 | 16.13 | 正态分布 |
| 全氮 | 100 | 0.97 g/kg | 2.84 g/kg | 1.86 g/kg | 0.33 | 0.02 | 0.56 | 17.67 | 正态分布 |
| 全磷 | 100 | 0.72 g/kg | 1.33 g/kg | 0.98 g/kg | 0.13 | 0.36 | -0.05 | 13.42 | 对数正态 |
| 全钾 | 100 | 13.78 g/kg | 22.53 g/kg | 18.34 g/kg | 2.51 | -0.18 | -1.35 | 13.69 | 正态分布 |
), ArticleFig(id=1178019275311825283, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, language=EN, label=Table 5, caption=
Semi-variance function model of soil nutrients and related parameters
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| 指标 | 模型 | 块金值 C0 | 基台值 (C0 +C) | 块金效应 [C0 /(C0 +C)]/% | 变程/m | 决定系数R2 | Moran's I | Z |
| pH | 指数模型 | 0.010 | 0.057 | 72.6 | 0.54 | 0.706 | 0. 036 | 0.713 |
| 有机质 | 球状模型 | 4.700 | 36.450 | 87.1 | 0.24 | 0.497 | 0.076 | 2.615 |
| 全氮 | 球状模型 | 0.004 | 0.079 | 94.4 | 0.23 | 0.482 | 0.166 | 2.711 |
| 全磷 | 球状模型 | 0.001 | 0.013 | 93.4 | 0.15 | 0.402 | 0.065 | 1.153 |
| 全钾 | 指数模型 | 0.002 | 0.017 | 88.0 | 0.24 | 0.523 | 0.024 | 0.209 |
), ArticleFig(id=1178019275458625924, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, language=CN, label=表5, caption=
土壤养分半方差函数模型及相关参数
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| 指标 | 模型 | 块金值 C0 | 基台值 (C0 +C) | 块金效应 [C0 /(C0 +C)]/% | 变程/m | 决定系数R2 | Moran's I | Z |
| pH | 指数模型 | 0.010 | 0.057 | 72.6 | 0.54 | 0.706 | 0. 036 | 0.713 |
| 有机质 | 球状模型 | 4.700 | 36.450 | 87.1 | 0.24 | 0.497 | 0.076 | 2.615 |
| 全氮 | 球状模型 | 0.004 | 0.079 | 94.4 | 0.23 | 0.482 | 0.166 | 2.711 |
| 全磷 | 球状模型 | 0.001 | 0.013 | 93.4 | 0.15 | 0.402 | 0.065 | 1.153 |
| 全钾 | 指数模型 | 0.002 | 0.017 | 88.0 | 0.24 | 0.523 | 0.024 | 0.209 |
), ArticleFig(id=1178019275664146821, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, language=EN, label=Table 6, caption=
Correlation coefficients of soil nutrients with topography and environmental factor
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| 指标 | 水平曲率 | 坡面曲率 | 坡向 | 坡度/(°) | 海拔/m | 村庄距离/m | 道路距离/m |
| pH | 0.093 | 0.096 | 0.136 | -0.274** | -0.116 | 0.085 | 0.112 |
| 有机质 | -0.119 | 0.074 | -0.011 | 0.022 | -0.037 | -0.258* | 0.283 |
| 全氮 | -0.060 | 0.244* | -0.040 | -0.039 | 0.128 | -0.168* | -0.152 |
| 全磷 | 0.039 | -0.047 | -0.103 | 0.138 | 0.135 | 0.214 | 0.124* |
| 全钾 | -0.072 | -0.096 | 0.062 | -0.043 | -0.001 | 0.144 | 0.210 |
), ArticleFig(id=1178019275764810118, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768568440533982, language=CN, label=表6, caption=
土壤养分与地形及环境因子的相关系数
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| 指标 | 水平曲率 | 坡面曲率 | 坡向 | 坡度/(°) | 海拔/m | 村庄距离/m | 道路距离/m |
| pH | 0.093 | 0.096 | 0.136 | -0.274** | -0.116 | 0.085 | 0.112 |
| 有机质 | -0.119 | 0.074 | -0.011 | 0.022 | -0.037 | -0.258* | 0.283 |
| 全氮 | -0.060 | 0.244* | -0.040 | -0.039 | 0.128 | -0.168* | -0.152 |
| 全磷 | 0.039 | -0.047 | -0.103 | 0.138 | 0.135 | 0.214 | 0.124* |
| 全钾 | -0.072 | -0.096 | 0.062 | -0.043 | -0.001 | 0.144 | 0.210 |
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