Article(id=1309575086387069669, tenantId=1146029695717560320, journalId=1308397196074385509, issueId=1309575072856240766, articleNumber=null, orderNo=null, doi=10.11733/j.issn.1007-0435.2026.06.023, pmid=null, cstr=null, oa=null, hot=0, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1767801600000, receivedDateStr=2026-01-08, revisedDate=1772985600000, revisedDateStr=2026-03-09, acceptedDate=null, acceptedDateStr=null, onlineDate=1790156631322, onlineDateStr=2026-09-23, pubDate=null, pubDateStr=null, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1790156631322, onlineIssueDateStr=2026-09-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1790156631322, creator=13701087609, updateTime=1790156631322, updator=13701087609, issue=Issue{id=1309575072856240766, tenantId=1146029695717560320, journalId=1308397196074385509, year='2026', volume='34', issue='6', pageStart='1963', pageEnd='2340', issueExtLink='null', onlineDate='null', pubDate='1781452800000', pubDateStr='2026-06-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1790156628097, creator='13701087609', updateTime=1790156954064, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1309576440438419817, tenantId=1146029695717560320, journalId=1308397196074385509, issueId=1309575072856240766, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1309576440438419818, tenantId=1146029695717560320, journalId=1308397196074385509, issueId=1309575072856240766, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=2207, endPage=2216, ext={EN=ArticleExt(id=1309575086902969063, articleId=1309575086387069669, tenantId=1146029695717560320, journalId=1308397196074385509, language=EN, title=Effects of Nitrogen and Phosphorus Addition on the Productivity and Biodiversity in Degraded Alpine Steppe, columnId=null, journalTitle=Acta Agrestia Sinica, columnName=null, runingTitle=null, highlight=null, articleAbstract=To investigate the appropriate nitrogen addition concentration for synergistically restoring productivity and maintaining biodiversity in degraded alpine steppe, this study conducted a randomized block experiment in the northern Xizang alpine steppe (elevation 4634 m). Six nitrogen addition gradients (0,5,10,15,20, and 25 g·m-2·a-1 N) were set under natural conditions and with phosphorus application. Mixed-effect models were used to analyze the effects of nitrogen addition on plant aboveground biomass, community structure, and diversity. The results showed that short-term nitrogen addition significantly increased plant aboveground biomass, with the promoting effect strengthening as nitrogen concentration increased. Simultaneously, nitrogen addition significantly reduced plant diversity, with the inhibitory effect intensifying with higher nitrogen concentrations, accompanied by an increase in the importance value of grasses and a decrease in the importance values of sedges and forbs. Phosphorus application enhanced the positive effect of nitrogen addition on aboveground biomass but did not significantly exacerbate the inhibition of plant diversity. This study reveals that moderate nitrogen addition (10~15 g·m-2·yr-1N) with phosphorus application may be an effective restoration measure for degraded alpine steppe, providing a scientific basis for the sustainable management of alpine steppe ecosystem., authors=FENG Tan1, PU Xing1, LÜ Chun-lei1, SUN Lei1,2, authorsList=FENG Tan, PU Xing, LÜ Chun-lei, SUN Lei, authorCompany=1 The Forestry and Grassland College of Xizang Agricultural and Animal Husbandry University, Linzhi, Xizang 860000;
2 Qiangtang Alpine Grassland Ecosystem Research Station, Naqu, Xizang 852000, correspAuthors=null, 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, fund=null), CN=ArticleExt(id=1309575086835860198, articleId=1309575086387069669, tenantId=1146029695717560320, journalId=1308397196074385509, language=CN, title=氮磷添加对退化高寒草原生产力与生物多样性的影响, columnId=1309565024058835950, journalTitle=草地学报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=为探究协同恢复退化高寒草原生产力与维持生物多样性的适宜氮添加浓度,本研究在藏北高寒草原(海拔4634 m)开展随机区组试验,设置自然条件及施磷条件下的6个氮添加梯度(0,5,10,15,20和25 g·m-2·a-1 N),利用混合效应模型分析氮添加对植物地上生物量、群落结构及多样性的影响。结果表明,短期氮添加显著提高植物地上生物量,且促进效应随氮浓度升高而增强;同时显著降低植物多样性,抑制效应随氮浓度增加而加剧,禾本科植物重要值的提高,以及莎草科和杂类草植物重要值的降低。施磷增强了氮添加对植物地上生物量的正向效应,但未显著加剧对植物多样性的抑制。本研究揭示,施磷条件下适度氮添加(10~15 g·m-2·a-1 N)可能是恢复退化高寒草原的有效恢复措施,为高寒草原生态系统的可持续管理提供了科学依据。, authors=冯探1, 蒲鑫1, 吕春磊1, 孙磊1,2, authorsList=冯探, 蒲鑫, 吕春磊, 孙磊, authorCompany=1 西藏农牧大学林草学院, 西藏 林芝 860000;
2 羌塘高寒草地生态系统定位研究站, 西藏 那曲 852000, correspAuthors=null, authorNote=冯探(1996-),男,汉族,江苏连云港人,硕士研究生,主要从事高寒草地生态与保护培育研究,E-mail:1501255948@qq.com, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=+tlZpjmYEtd0/mELUFocOw==, pdfFileSize=4321648, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=西藏农牧大学研究生创新项目 (YJS2025-14); 羌塘高原项目 (603325037); 羌塘科技小院项目 (XY2024-02))}, authors=null, keywords=[Keyword(id=1309575087272067816, tenantId=1146029695717560320, journalId=1308397196074385509, articleId=1309575086387069669, language=CN, orderNo=1, keyword=氮添加), Keyword(id=1309575087326593769, tenantId=1146029695717560320, journalId=1308397196074385509, articleId=1309575086387069669, language=CN, orderNo=2, keyword=磷限制), 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草地学报 | 研究论文 2026,34(6): 2207-2216
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草地学报 |研究论文 2026 , 34 (6) : 2207 -2216
氮磷添加对退化高寒草原生产力与生物多样性的影响
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冯探1, 蒲鑫1, 吕春磊1, 孙磊1,2
作者信息
    1 西藏农牧大学林草学院, 西藏 林芝 860000;
    2 羌塘高寒草地生态系统定位研究站, 西藏 那曲 852000
作者简介:
冯探(1996-),男,汉族,江苏连云港人,硕士研究生,主要从事高寒草地生态与保护培育研究,E-mail:1501255948@qq.com
Effects of Nitrogen and Phosphorus Addition on the Productivity and Biodiversity in Degraded Alpine Steppe
  • FENG Tan1, PU Xing1, LÜ Chun-lei1, SUN Lei1,2
  • Affiliations
      1 The Forestry and Grassland College of Xizang Agricultural and Animal Husbandry University, Linzhi, Xizang 860000;
      2 Qiangtang Alpine Grassland Ecosystem Research Station, Naqu, Xizang 852000
    doi: 10.11733/j.issn.1007-0435.2026.06.023
    文章导航
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    为探究协同恢复退化高寒草原生产力与维持生物多样性的适宜氮添加浓度,本研究在藏北高寒草原(海拔4634 m)开展随机区组试验,设置自然条件及施磷条件下的6个氮添加梯度(0,5,10,15,20和25 g·m-2·a-1 N),利用混合效应模型分析氮添加对植物地上生物量、群落结构及多样性的影响。结果表明,短期氮添加显著提高植物地上生物量,且促进效应随氮浓度升高而增强;同时显著降低植物多样性,抑制效应随氮浓度增加而加剧,禾本科植物重要值的提高,以及莎草科和杂类草植物重要值的降低。施磷增强了氮添加对植物地上生物量的正向效应,但未显著加剧对植物多样性的抑制。本研究揭示,施磷条件下适度氮添加(10~15 g·m-2·a-1 N)可能是恢复退化高寒草原的有效恢复措施,为高寒草原生态系统的可持续管理提供了科学依据。
    氮添加  /  磷限制  /  高寒草原  /  植物地上生物量  /  植物多样性  /  群落结构
    To investigate the appropriate nitrogen addition concentration for synergistically restoring productivity and maintaining biodiversity in degraded alpine steppe, this study conducted a randomized block experiment in the northern Xizang alpine steppe (elevation 4634 m). Six nitrogen addition gradients (0,5,10,15,20, and 25 g·m-2·a-1 N) were set under natural conditions and with phosphorus application. Mixed-effect models were used to analyze the effects of nitrogen addition on plant aboveground biomass, community structure, and diversity. The results showed that short-term nitrogen addition significantly increased plant aboveground biomass, with the promoting effect strengthening as nitrogen concentration increased. Simultaneously, nitrogen addition significantly reduced plant diversity, with the inhibitory effect intensifying with higher nitrogen concentrations, accompanied by an increase in the importance value of grasses and a decrease in the importance values of sedges and forbs. Phosphorus application enhanced the positive effect of nitrogen addition on aboveground biomass but did not significantly exacerbate the inhibition of plant diversity. This study reveals that moderate nitrogen addition (10~15 g·m-2·yr-1N) with phosphorus application may be an effective restoration measure for degraded alpine steppe, providing a scientific basis for the sustainable management of alpine steppe ecosystem.
    Nitrogen addition  /  Phosphorus limitation  /  Alpine steppe  /  Plant aboveground biomass  /  Plant species diversity  /  Community structure
    冯探, 蒲鑫, 吕春磊, 孙磊. 氮磷添加对退化高寒草原生产力与生物多样性的影响. 草地学报, 2026 , 34 (6) : 2207 -2216 . DOI: 10.11733/j.issn.1007-0435.2026.06.023
    FENG Tan, PU Xing, LÜ Chun-lei, SUN Lei. Effects of Nitrogen and Phosphorus Addition on the Productivity and Biodiversity in Degraded Alpine Steppe[J]. Acta Agrestia Sinica, 2026 , 34 (6) : 2207 -2216 . DOI: 10.11733/j.issn.1007-0435.2026.06.023

      西藏农牧大学研究生创新项目 (YJS2025-14); 羌塘高原项目 (603325037); 羌塘科技小院项目 (XY2024-02)

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    2026年第34卷第6期
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    2种不同金属材料的力学参数
    科
    Family
    属数
    Number of
    genus
    种数
    Number of
    species
    占总种数比例
    Percentage of
    total species (%)
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    Genus
    种数
    Number of
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    占总种数比例
    Percentage of total
    species (%)
    鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
    小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
    多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
    红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
    小菇属 Mycena 11 5.26
    光柄菇属 Pluteus 5 2.39
    红菇属 Russula 17 8.13
    栓菌属 Trametes 5 2.39
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