Article(id=1239152910362276415, tenantId=1146029695717560320, journalId=1238822807409311748, issueId=1239152904658022886, articleNumber=null, orderNo=null, doi=10.11686/cyxb2020174, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1586793600000, receivedDateStr=2020-04-14, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1773366676177, onlineDateStr=2026-03-13, pubDate=1605801600000, pubDateStr=2020-11-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1773366676177, onlineIssueDateStr=2026-03-13, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1773366676177, creator=13701087609, updateTime=1773366676177, updator=13701087609, issue=Issue{id=1239152904658022886, tenantId=1146029695717560320, journalId=1238822807409311748, year='2020', volume='29', issue='11', pageStart='1', pageEnd='204', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1773366674818, creator=13701087609, updateTime=1773366910226, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1239153892072673913, tenantId=1146029695717560320, journalId=1238822807409311748, issueId=1239152904658022886, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1239153892072673914, tenantId=1146029695717560320, journalId=1238822807409311748, issueId=1239152904658022886, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=183, endPage=189, ext={EN=ArticleExt(id=1239152912920801972, articleId=1239152910362276415, tenantId=1146029695717560320, journalId=1238822807409311748, language=EN, title=Increase in soil coarse sand content and decrease in soil nutrient levels accompany the transformation of perennial communities to annual communities in desert grassland, columnId=0, journalTitle=Acta Prataculturae Sinica, columnName=, runingTitle=null, highlight=null, articleAbstract=
This research studied the distribution of plant communities in response to soil environmental factors in desert steppe. We selected a soil habitat transition gradient from sierozem to sandy soil in Yanchi, Ningxia, China. Within, at the edge of, and outside of the sierozem habitat, vegetation characteristics and soil sampling were conducted using a line transect method. Based on the soil environmental factors and community species composition data, we quantitatively classified the plant communities using multivariate regression trees and redundancy analysis. Then we analyzed the differences between the different plant communities using principal component analysis. It was found that dominant species of the plant communities changed from Stipa breviflora+Cleistogenes squarrosa+Thermopsis lanceolate to Sophora alopecuroides+Pennisetum centrasiaticum and to Artemisia scoparia+Salsola collina across the soil gradient. Key soil factors associated with the shift of plant community species dominance included soil coarse sand, soil organic carbon and soil total phosphorus contents. Across the habitat gradient from sierozem to sandy soil, height, cover and biomass of the plant communities showed a statistically significant increase, community species abundance showed a significant decrease, and plant community diversity showed an increase and then a decrease. As soil texture became coarser and soil nutrient content decreased along the gradient, perennial plant communities were replaced by annual plant communities. Compared with the plant communities in the sierozem habitat, the proportion of perennial plant species, plant species diversity and biomass were low in sandy habitats.
, correspAuthors=Xing WANG, authorNote=null, correspAuthorsNote=
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本文属于开放获取期刊。, copyrightOwner=草业学报编辑部, extLink=null, articleAbsUrl=null, sourceXml=omnoo9nCOE+9Pvpu3qKQcg==, magXml=PvUg7Z0oTxgE7RQyinkk0Q==, pdfUrl=null, pdf=cB8NisIDMJtYOexVLRJDhA==, pdfFileSize=983824, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=DmlFPRkj94bxrA5K57NdXw==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=VY0fZYRjTCIXm3qKWBrxJw==, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=Lei WANG, Nai-ping SONG, Lin CHEN, Xin-guo YANG, Xing WANG), CN=ArticleExt(id=1239152913151488709, articleId=1239152910362276415, tenantId=1146029695717560320, journalId=1238822807409311748, language=CN, title=荒漠草原土壤粗质化和养分减少伴随多年生群落转变为一年生群落, columnId=1239152913042436797, journalTitle=草业学报, columnName=研究简报, runingTitle=null, highlight=null, articleAbstract=
为明晰荒漠草原植物群落物种空间分布对土壤环境因子的响应,2018年在宁夏盐池县荒漠草原区域,沿灰钙土内部、边缘和外部生境,基于样线法开展植被和土壤调查及采样,采用多元回归树和冗余分析相结合,探讨植物群落随土壤因子的空间变化特征以及不同群落特征的差异。结果表明,沿灰钙土内部、外部和边缘生境:1)短花针茅+糙隐子草+披针叶黄华群落,苦豆子+白草群落逐渐转变为猪毛蒿+猪毛菜群落。2)土壤粗砂粒、有机碳和全磷含量是群落物种组成空间变化的主要控制因子。3)植物群落高度、盖度和生物量呈显著降低趋势;群落物种多样性呈先增加后减少趋势;植物群落密度呈显著增加趋势。结论沿灰钙土内部、边缘和外部生境,土壤粗颗粒含量增加,养分含量降低,多年生植物群落转变为一年生植物群落。相对于残存的灰钙土生境植物群落,经历过严重沙化的生境,多年生物种比例、植物多样性和生物量依然较低。
, correspAuthors=王兴, authorNote=null, correspAuthorsNote=
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The schematic diagram of the sampling
N indicates the number of sample, green circle represents the square.
, figureFileSmall=gPSqSnHPmkk/kdgDxcxe9g==, figureFileBig=DmlFPRkj94bxrA5K57NdXw==, tableContent=null), ArticleFig(id=1239152917836526584, tenantId=1146029695717560320, journalId=1238822807409311748, articleId=1239152910362276415, language=CN, label=图1, caption=
实验设计及采样示意图
图中N代表样方数量,绿色圆代表样方。
, figureFileSmall=gPSqSnHPmkk/kdgDxcxe9g==, figureFileBig=DmlFPRkj94bxrA5K57NdXw==, tableContent=null), ArticleFig(id=1239152917928801277, tenantId=1146029695717560320, journalId=1238822807409311748, articleId=1239152910362276415, language=EN, label=Fig.2, caption=
Multivariate regression tree for plant community (A) and resubstitution and cross-validation relative error (B) for the multivariate regression tree
(a) Change trend of cross-validated relative error; (b) Change trend of relative error; (c) The tree size suggested by “1-SE”; Min+1SE: One standard error above the minimum cross-validated relative error.
, figureFileSmall=7B3TIl60r7qBMEY1RZK69w==, figureFileBig=EwPIIEV+EPT5cbr9tFZQWA==, tableContent=null), ArticleFig(id=1239152918025269251, tenantId=1146029695717560320, journalId=1238822807409311748, articleId=1239152910362276415, language=CN, label=图2, caption=
植物群落分类多元回归树(A)及分类相对误差和交叉验证相对误差(B)变化
(a)交叉验证相对误差变化趋势;(b)相对误差变化趋势;(c)基于“1-SE”规则确定的分类属规模点;Min+1SE:交叉验证相对误差最小值加上一个标准误差线。
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Relationship between different plant community species composition and soil environmental factors
Different shapes and colors represent three groups of communities divided by multiple regression trees: The first group is a red box;The second group is a green dot;The third group is a blue triangle. The same below.SOC:土壤有机碳Soil organic carbon; STP:土壤全磷Soil total phosphorous;CS:土壤粗砂粒Soil coarse sand;SC:土壤黏粉粒Soil silt clay;Sti bre:短花针茅S. breviflora; Clei squ:糙隐子草C. squarrosa;Les pot:牛枝子L. potaninii;Gue ver:米口袋Gueldenstaedtia verna;Art sco:猪毛蒿A. scoparia;Sal col:猪毛菜S. collina;Pol ten:远志Polygala tenuifolia;Eup koz:沙生大戟 Euphorbia pekinensis;Peg har:骆驼蓬Peganum harmala;Ixe gra:细叶山苦荬Ixeridium_chinense;The lan:披针叶黄华T. lanceolata;Pen cen:白草P. centrasiaticum;Sop alo:苦豆子S. alopecuroides;Ast mel:草木樨状黄耆A. melilotoides;Het alt:阿尔泰狗娃花Heteropappus altaicus;Acr rep:顶羽菊 Acroptilon repens.
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不同植物群落物种组成变化与环境因子关系
不同形状和颜色代表多元回归树划分的3组群落:第1组为红色方框;第2组为绿色圆点;第3组为蓝色三角,下同。
, figureFileSmall=YWt+/Ev5BcS5XK1z8YH8zw==, figureFileBig=kCgM8fwDYjqzJtep6pwi1g==, tableContent=null), ArticleFig(id=1239152918323064855, tenantId=1146029695717560320, journalId=1238822807409311748, articleId=1239152910362276415, language=EN, label=Fig.4, caption=
Change trend for different plant community characteristic
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不同植物群落特征差异
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Soil environmental factors significantly impacted distribution of species composition based on forward selection
, figureFileSmall=null, figureFileBig=null, tableContent=
变量 Variables | 解释量R2 Explanation | 累计R2解释量 Cumulative explanation | 解释量校正值 Adjusted explanation | F | P |
| 黏粉粒 Silt+clay 10~20 cm | 0.459 | 0.459 | 0.451 | 61.835 | 0.000 |
| 粗砂粒 Coarse sand 0~10 cm | 0.047 | 0.506 | 0.492 | 6.924 | 0.000 |
| 全磷 Total phosphorus 10~20 cm | 0.020 | 0.527 | 0.507 | 3.064 | 0.003 |
| 粗砂粒 Coarse sand 20~40 cm | 0.021 | 0.548 | 0.522 | 3.322 | 0.002 |
| 细砂粒 Fine sand 0~10 cm | 0.021 | 0.569 | 0.537 | 3.315 | 0.002 |
| 有机碳Soil organic carbon 10~20 cm | 0.014 | 0.583 | 0.546 | 2.271 | 0.026 |
| 有机碳Soil organic carbon 0~10 cm | 0.012 | 0.594 | 0.552 | 1.960 | 0.048 |
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基于前向选择分析的影响植物群落物种组成的土壤环境因子筛选
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变量 Variables | 解释量R2 Explanation | 累计R2解释量 Cumulative explanation | 解释量校正值 Adjusted explanation | F | P |
| 黏粉粒 Silt+clay 10~20 cm | 0.459 | 0.459 | 0.451 | 61.835 | 0.000 |
| 粗砂粒 Coarse sand 0~10 cm | 0.047 | 0.506 | 0.492 | 6.924 | 0.000 |
| 全磷 Total phosphorus 10~20 cm | 0.020 | 0.527 | 0.507 | 3.064 | 0.003 |
| 粗砂粒 Coarse sand 20~40 cm | 0.021 | 0.548 | 0.522 | 3.322 | 0.002 |
| 细砂粒 Fine sand 0~10 cm | 0.021 | 0.569 | 0.537 | 3.315 | 0.002 |
| 有机碳Soil organic carbon 10~20 cm | 0.014 | 0.583 | 0.546 | 2.271 | 0.026 |
| 有机碳Soil organic carbon 0~10 cm | 0.012 | 0.594 | 0.552 | 1.960 | 0.048 |
), ArticleFig(id=1239152918742495278, tenantId=1146029695717560320, journalId=1238822807409311748, articleId=1239152910362276415, language=EN, label=Table 2, caption=
Correlation coefficient between community characteristic and axis of PCA
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| 指标 Index | 相关性系数 Correlation parameter | | P值 P-value |
| 主成分1 PC1 | 主成分2 PC2 | 主成分3 PC3 | 主成分4 PC4 | 主成分1 PC1 | 主成分2 PC2 | 主成分3 PC3 | 主成分4 PC4 |
| 高度High | -0.686 | -0.018 | -0.034 | -0.631 | | 0.000 | 0.878 | 0.771 | 0.000 |
| 盖度 Cover | -0.858 | 0.045 | 0.070 | 0.166 | | 0.000 | 0.702 | 0.549 | 0.154 |
| 生物量 Biomass | -0.823 | -0.332 | -0.183 | 0.181 | | 0.000 | 0.004 | 0.117 | 0.119 |
| 密度 Abundance | 0.058 | 0.481 | -0.686 | 0.008 | | 0.620 | 0.000 | 0.000 | 0.948 |
| 丰富度 Richness | 0.022 | -0.508 | -0.636 | 0.460 | | 0.854 | 0.000 | 0.000 | 0.000 |
| 香农威纳指数Shannon-Wiener | 0.187 | -0.441 | -0.579 | -0.531 | | 0.108 | 0.000 | 0.000 | 0.000 |
| 均匀度指数 Pielou | -0.093 | -0.849 | 0.215 | 0.059 | | 0.427 | 0.000 | 0.065 | 0.614 |
), ArticleFig(id=1239152918864130101, tenantId=1146029695717560320, journalId=1238822807409311748, articleId=1239152910362276415, language=CN, label=表2, caption=
植物群落特征参数与PCA典范轴的相关系数及显著水平
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| 指标 Index | 相关性系数 Correlation parameter | | P值 P-value |
| 主成分1 PC1 | 主成分2 PC2 | 主成分3 PC3 | 主成分4 PC4 | 主成分1 PC1 | 主成分2 PC2 | 主成分3 PC3 | 主成分4 PC4 |
| 高度High | -0.686 | -0.018 | -0.034 | -0.631 | | 0.000 | 0.878 | 0.771 | 0.000 |
| 盖度 Cover | -0.858 | 0.045 | 0.070 | 0.166 | | 0.000 | 0.702 | 0.549 | 0.154 |
| 生物量 Biomass | -0.823 | -0.332 | -0.183 | 0.181 | | 0.000 | 0.004 | 0.117 | 0.119 |
| 密度 Abundance | 0.058 | 0.481 | -0.686 | 0.008 | | 0.620 | 0.000 | 0.000 | 0.948 |
| 丰富度 Richness | 0.022 | -0.508 | -0.636 | 0.460 | | 0.854 | 0.000 | 0.000 | 0.000 |
| 香农威纳指数Shannon-Wiener | 0.187 | -0.441 | -0.579 | -0.531 | | 0.108 | 0.000 | 0.000 | 0.000 |
| 均匀度指数 Pielou | -0.093 | -0.849 | 0.215 | 0.059 | | 0.427 | 0.000 | 0.065 | 0.614 |
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