Article(id=1312009656797593962, tenantId=1146029695717560320, journalId=1311385839672066169, issueId=1312009474789958403, articleNumber=null, orderNo=null, doi=10.13870/j.cnki.stbcxb.2026.04.041, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1772640000000, receivedDateStr=2026-03-05, revisedDate=1775664000000, revisedDateStr=2026-04-09, acceptedDate=1776614400000, acceptedDateStr=2026-04-20, onlineDate=1790737078141, onlineDateStr=2026-09-30, pubDate=1787846400000, pubDateStr=2026-08-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1790737078141, onlineIssueDateStr=2026-09-30, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1790737078141, creator=13701087609, updateTime=1790737078141, updator=13701087609, issue=Issue{id=1312009474789958403, tenantId=1146029695717560320, journalId=1311385839672066169, year='2026', volume='40', issue='4', pageStart='1', pageEnd='488', issueExtLink='null', onlineDate='null', pubDate='1787846400000', pubDateStr='2026-08-28', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1790737034746, creator='13701087609', updateTime=1790739471092, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1312019693662204413, tenantId=1146029695717560320, journalId=1311385839672066169, issueId=1312009474789958403, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1312019693662204414, tenantId=1146029695717560320, journalId=1311385839672066169, issueId=1312009474789958403, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=78, endPage=86, ext={EN=ArticleExt(id=1312009657003114859, articleId=1312009656797593962, tenantId=1146029695717560320, journalId=1311385839672066169, language=EN, title=Changes in Soil Organic Carbon Fractions and Stability Characteristics of Abandoned Farmland in Southwest Karst Regions, columnId=1312009514929455370, journalTitle=Journal of Soil and Water Conservation, columnName="Special Issue on Rocky Desertification Control and Ecological Restoration", runingTitle=null, highlight=null, articleAbstract=
Objective This study aims to investigate the evolution patterns of soil organic carbon (SOC) in abandoned farmland of karst areas and identify the transition threshold of carbon pool from quantitative expansion to structural stabilization. Methods A typical abandoned farmland of karst areas in Guizhou was selected as the research subject. A space-for-time substitution method was adopted to analyze the differences in SOC content and its fractions, including easily oxidizable organic carbon (EOC), particulate organic carbon (POC), light fraction organic carbon (LFOC), and heavy fraction organic carbon (HFOC), in the 0~20 cm soil layer across farmland (CK) and succession sequences (5, 10, and 15 a of abandonment). The carbon pool management index (CPMI) and the HFOC/SOC ratio were used to evaluate carbon pool stability. Results 1) After 15 a of abandonment, SOC content in the 0~10 cm soil layer increased by 70.1% compared with CK, with accumulation mainly occurring in the first 10 a. 2) EOC and POC showed an inverted "U"-shaped pattern with increasing abandonment years and peaked at 10 a, increasing by 91.5% and 107.1%, respectively, in the 0~10 cm soil layer compared with CK. HFOC showed a highly significant continuous linear increase (R²>0.9), with its contribution remaining at 88%~90%. 3) The 10 a of abandonment was the threshold for carbon pool functional transition from an activity-driven quantity increase stage to a stability-driven quality stabilization stage, at which CPMI peaked and then declined, while the stability ratio increased. 4) Carbon pool remodeling showed a vertical differentiation pattern with earlier transformation in the surface layer and a lagged response in deeper layers. The 0~10 cm soil layer exhibited significantly higher sensitivity to succession and faster stability improvement than the 10~20 cm soil layer. The first axis of redundancy analysis (RDA) explained 57.27% of the variations, and abandonment years were the dominant factor driving changes in carbon fractions. Conclusion 10 a is the key turning point for carbon pool functional remodeling in karst areas, and vegetation restoration promotes the transition from active accumulation to chemical stabilization. This finding emphasizes the importance of focusing on carbon pool transformation in surface soils and enhancing carbon sequestration capacity by utilizing strong mineral protection in calcium-rich habitats.
, authors=Huidan Peng
1, 2, Quanhou Dai
1, 2, Xingsong Yi
3, Li Tian
1, 2, Huamei Li
1, 2, authorsList=Huidan Peng, Quanhou Dai, Xingsong Yi, Li Tian, Huamei Li, authorCompany=null, correspAuthors=Quanhou Dai, 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=1312009660153037176, articleId=1312009656797593962, tenantId=1146029695717560320, journalId=1311385839672066169, language=CN, title=西南喀斯特耕地撂荒土壤有机碳组分变化及其稳定性特征, columnId=1312009515093033228, journalTitle=水土保持学报, columnName=“石漠化防治与生态修复”专栏, runingTitle=null, highlight=null, articleAbstract=
目的 为探究喀斯特耕地撂荒土壤有机碳变化规律并辨析碳库由数量扩张向结构稳固转化的阈值。 方法 以贵州典型喀斯特撂荒耕地为研究对象,采用时空替代法,分析耕地(CK)及演替序列(5、10、15 a)土层(0~20 cm)土壤有机碳(SOC)及其组分(易氧化有机碳EOC、颗粒有机碳POC、轻组有机碳LFOC、重组有机碳HFOC)的含量分异,利用碳库管理指数(CPMI)及重组组分占比(HFOC/SOC)评价碳库稳定性。 结果 1)撂荒15 a时0~10 cm土层SOC含量较CK显著增长70.1%,积累主要集中在前10 a。2)EOC与POC随撂荒年限呈倒“U”形波动并于10 a达峰,0~10 cm土层分别较CK增长91.5%和107.1%;HFOC呈极显著持续线性增长(R2>0.9)贡献率稳居88%~90%。3)撂荒10 a是碳库由活性驱动的量增阶段转向稳定驱动的质稳阶段的关键功能转型阈值,此点CPMI达峰后回落,稳定性比值回升。4)碳库重塑呈浅层先转型、深层滞后的垂直分异规律,0~10 cm土层对演替驱动的敏感度及稳定性提升速度显著优于10~20 cm土层。RDA第1轴解释率达57.27%,撂荒年限是驱动组分变化的主导因子。 结论 10 a是喀斯特碳库功能重塑的关键拐点,植被恢复促使碳库由活性积累转向化学固持。该发现强调评估应关注表层碳库转型,利用高钙生境增强矿物保护韧性,提升固碳能力。
, authors=彭绘丹
1, 2, 戴全厚
1, 2, 易兴松
3, 田力
1, 2, 李华梅
1, 2, authorsList=彭绘丹, 戴全厚, 易兴松, 田力, 李华梅, authorCompany=null, correspAuthors=戴全厚, authorNote=
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1, 2, address=
1.College of Forestry,Guizhou University,Guiyang 550025,China
2.Research Center of Soil Erosion and;Ecological Restoration,Guizhou University,Guiyang 550025,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1312009660882846087, tenantId=1146029695717560320, journalId=1311385839672066169, articleId=1312009656797593962, authorId=1312009660736045443, language=CN, stringName=彭绘丹, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, address=
1.贵州大学林学院,贵阳 550025
2.贵州大学土壤侵蚀与生态修复研究中心,贵阳 550025, bio={"content":"
彭绘丹(2001—),女,硕士研究生,主要从事喀斯特土壤侵蚀与水土保持研究。E-mail:peng565109@163.com
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彭绘丹(2001—),女,硕士研究生,主要从事喀斯特土壤侵蚀与水土保持研究。E-mail:peng565109@163.com
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1, 2, address=
1.College of Forestry,Guizhou University,Guiyang 550025,China
2.Research Center of Soil Erosion and;Ecological Restoration,Guizhou University,Guiyang 550025,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1312009661109338509, tenantId=1146029695717560320, journalId=1311385839672066169, articleId=1312009656797593962, authorId=1312009660954149257, language=CN, stringName=戴全厚, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, address=
1.贵州大学林学院,贵阳 550025
2.贵州大学土壤侵蚀与生态修复研究中心,贵阳 550025, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1312009660475998585, tenantId=1146029695717560320, journalId=1311385839672066169, articleId=1312009656797593962, xref=1., ext=[AuthorCompanyExt(id=1312009660484387194, tenantId=1146029695717560320, journalId=1311385839672066169, articleId=1312009656797593962, companyId=1312009660475998585, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1.贵州大学林学院,贵阳 550025)]), AuthorCompany(id=1312009660564078972, tenantId=1146029695717560320, journalId=1311385839672066169, articleId=1312009656797593962, xref=2., ext=[AuthorCompanyExt(id=1312009660572467581, tenantId=1146029695717560320, journalId=1311385839672066169, articleId=1312009656797593962, companyId=1312009660564078972, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.Research Center of Soil Erosion and;Ecological Restoration,Guizhou University,Guiyang 550025,China), AuthorCompanyExt(id=1312009660580856190, tenantId=1146029695717560320, journalId=1311385839672066169, articleId=1312009656797593962, companyId=1312009660564078972, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.贵州大学土壤侵蚀与生态修复研究中心,贵阳 550025)])]), Author(id=1312009661184835983, tenantId=1146029695717560320, journalId=1311385839672066169, articleId=1312009656797593962, orderNo=2, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1312009661272916369, tenantId=1146029695717560320, journalId=1311385839672066169, articleId=1312009656797593962, authorId=1312009661184835983, language=EN, stringName=Xingsong Yi, firstName=Xingsong, middleName=null, lastName=Yi, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
3, address=
3.School of Tourism,Ecology,and Environment,Anshun University,Anshun,Guizhou 561000,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1312009661360996754, tenantId=1146029695717560320, journalId=1311385839672066169, articleId=1312009656797593962, authorId=1312009661184835983, language=CN, stringName=易兴松, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
3, address=
3.安顺学院旅游生态与环境学院,贵州 安顺 561000, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1312009660656353663, tenantId=1146029695717560320, journalId=1311385839672066169, articleId=1312009656797593962, xref=3., ext=[AuthorCompanyExt(id=1312009660660547968, tenantId=1146029695717560320, journalId=1311385839672066169, articleId=1312009656797593962, companyId=1312009660656353663, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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3.安顺学院旅游生态与环境学院,贵州 安顺 561000)])]), Author(id=1312009661444882836, tenantId=1146029695717560320, journalId=1311385839672066169, articleId=1312009656797593962, orderNo=3, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1312009661541351831, tenantId=1146029695717560320, journalId=1311385839672066169, articleId=1312009656797593962, authorId=1312009661444882836, language=EN, stringName=Li Tian, firstName=Li, middleName=null, lastName=Tian, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, address=
1.College of Forestry,Guizhou University,Guiyang 550025,China
2.Research Center of Soil Erosion and;Ecological Restoration,Guizhou University,Guiyang 550025,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1312009661608460696, tenantId=1146029695717560320, journalId=1311385839672066169, articleId=1312009656797593962, authorId=1312009661444882836, language=CN, stringName=田力, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, address=
1.贵州大学林学院,贵阳 550025
2.贵州大学土壤侵蚀与生态修复研究中心,贵阳 550025, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1312009660475998585, tenantId=1146029695717560320, journalId=1311385839672066169, articleId=1312009656797593962, xref=1., ext=[AuthorCompanyExt(id=1312009660484387194, tenantId=1146029695717560320, journalId=1311385839672066169, articleId=1312009656797593962, companyId=1312009660475998585, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1, 2, address=
1.College of Forestry,Guizhou University,Guiyang 550025,China
2.Research Center of Soil Erosion and;Ecological Restoration,Guizhou University,Guiyang 550025,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1312009661960782238, tenantId=1146029695717560320, journalId=1311385839672066169, articleId=1312009656797593962, authorId=1312009661725901210, language=CN, stringName=李华梅, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, address=
1.贵州大学林学院,贵阳 550025
2.贵州大学土壤侵蚀与生态修复研究中心,贵阳 550025, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1312009660475998585, tenantId=1146029695717560320, journalId=1311385839672066169, articleId=1312009656797593962, xref=1., ext=[AuthorCompanyExt(id=1312009660484387194, tenantId=1146029695717560320, journalId=1311385839672066169, articleId=1312009656797593962, companyId=1312009660475998585, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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Geographical location of the study area, figureFileSmall=c95KimPD88vMFvIL/j9otg==, figureFileBig=oazraGHSAbwR9Uw/cE1e3Q==, tableContent=null), ArticleFig(id=1312009664997458346, tenantId=1146029695717560320, journalId=1311385839672066169, articleId=1312009656797593962, language=CN, label=图1, caption=
研究区地理位置, figureFileSmall=c95KimPD88vMFvIL/j9otg==, figureFileBig=oazraGHSAbwR9Uw/cE1e3Q==, tableContent=null), ArticleFig(id=1312009665215562155, tenantId=1146029695717560320, journalId=1311385839672066169, articleId=1312009656797593962, language=EN, label=Fig.2, caption=
Changes in soil organic carbon accumulation and carbon pool stability, figureFileSmall=WxHIqVtAiDTAVtFVgTH11g==, figureFileBig=U5SYSMC+z0Froh5BUEJaDA==, tableContent=null), ArticleFig(id=1312009665291059628, tenantId=1146029695717560320, journalId=1311385839672066169, articleId=1312009656797593962, language=CN, label=图2, caption=
土壤有机碳积累与碳库稳定性变化注:图柱及折线处小写字母表示不同撂荒年限间显著差异(p<0.05);HFOC/SOC为有机碳库稳定性;CPMI为碳库管理指数。下同。
, figureFileSmall=WxHIqVtAiDTAVtFVgTH11g==, figureFileBig=U5SYSMC+z0Froh5BUEJaDA==, tableContent=null), ArticleFig(id=1312009665391722925, tenantId=1146029695717560320, journalId=1311385839672066169, articleId=1312009656797593962, language=EN, label=Fig.3, caption=
Characteristics of active organic carbon in soil, figureFileSmall=XtEbqgN9wJaWIsS9d5aNlg==, figureFileBig=Mtw9egH//9LiehaYmWyG6Q==, tableContent=null), ArticleFig(id=1312009665467220398, tenantId=1146029695717560320, journalId=1311385839672066169, articleId=1312009656797593962, language=CN, label=图3, caption=
土壤活性有机碳组分的特征, figureFileSmall=XtEbqgN9wJaWIsS9d5aNlg==, figureFileBig=Mtw9egH//9LiehaYmWyG6Q==, tableContent=null), ArticleFig(id=1312009665551106479, tenantId=1146029695717560320, journalId=1311385839672066169, articleId=1312009656797593962, language=EN, label=Fig.4, caption=
Changes in the content of stable organic carbon and the proportion of LFOC and HFOC in total organic carbon, figureFileSmall=S8ep/D5adfbEi5cI3vF52Q==, figureFileBig=ffjMkIJUxgiG1G+977qSLA==, tableContent=null), ArticleFig(id=1312009665622409648, tenantId=1146029695717560320, journalId=1311385839672066169, articleId=1312009656797593962, language=CN, label=图4, caption=
稳定有机碳的含量变化及LFOC和HFOC占总有机碳比的变化注:图中X为撂荒年限。
, figureFileSmall=S8ep/D5adfbEi5cI3vF52Q==, figureFileBig=ffjMkIJUxgiG1G+977qSLA==, tableContent=null), ArticleFig(id=1312009665693712817, tenantId=1146029695717560320, journalId=1311385839672066169, articleId=1312009656797593962, language=EN, label=Fig.5, caption=
Correlation analysis among carbon fractions, figureFileSmall=K/Ghcq1UIXMrSobSfjKUyw==, figureFileBig=dxUbM7MRlB8IiLsAuvPeFQ==, tableContent=null), ArticleFig(id=1312009665781793202, tenantId=1146029695717560320, journalId=1311385839672066169, articleId=1312009656797593962, language=CN, label=图5, caption=
各组分间的相关性注:SOC为土壤有机碳;EOC为易氧化有机碳;POC为颗粒有机碳;HFOC为重组有机碳;LFOC为轻组有机碳;*表示p<0.05。下同。
, figureFileSmall=K/Ghcq1UIXMrSobSfjKUyw==, figureFileBig=dxUbM7MRlB8IiLsAuvPeFQ==, tableContent=null), ArticleFig(id=1312009665853096371, tenantId=1146029695717560320, journalId=1311385839672066169, articleId=1312009656797593962, language=EN, label=Fig.6, caption=
Redundancy analysis of soil organic carbon fractions and environmental factors, figureFileSmall=VduSh4fP2XeONyxyJpAelA==, figureFileBig=6TebOO41VxrBWu4GZbp6dA==, tableContent=null), ArticleFig(id=1312009665924399540, tenantId=1146029695717560320, journalId=1311385839672066169, articleId=1312009656797593962, language=CN, label=图6, caption=
土壤有机碳组分与环境因子的冗余分析注:FVC为植被覆盖度;LD为枯落物厚度。
, figureFileSmall=VduSh4fP2XeONyxyJpAelA==, figureFileBig=6TebOO41VxrBWu4GZbp6dA==, tableContent=null), ArticleFig(id=1312009666016674229, tenantId=1146029695717560320, journalId=1311385839672066169, articleId=1312009656797593962, language=EN, label=Table 1, caption=
Basic information of the sample plot
, figureFileSmall=null, figureFileBig=null, tableContent=
| 类型 | 经度(E) | 纬度(N) | 海拔/m | 坡度/(°) | 枯落物 厚度/cm | 植被覆盖度/% | 样地特征 |
|---|
| CK | 106°38′05″~106°38′06″ | 26°27′06″~ 26°27′07″ | 1 180~1 193 | 13~20 | 0 | 30~80 | 年种植玉米(Zea mays)、土豆(Solanum tuberosum)等农作物,碳输入以作物根系为主,量少且季节性强。地上部分收获后移除,枯落物极少 |
撂荒 5 a | 106°38′06″~106°38′07″ | 26°27′08″~ 26°27′09″ | 1 189~1 203 | 13~22 | 0.03~0.1 | 30~80 | 以一年生草本植物为主,优势物种为荩草(Arthraxon hispidus)、狗尾草(Seta-ria viridis)、鬼针草(Bidens pilosa)、一年蓬(Erigeron annuus)等,平均高度20~60 cm碳输入以浅根系易分解枯落物为主,地上生物量约0.3~0.6 kg/m² |
| 撂荒10 a | 106°38′31″~106°38′35″ | 26°28′08″~ 26°28′22″ | 1 179~1 205 | 14~23 | 0.2~0.5 | 30~80 | 以多年生草本植物为主,主要有白茅(Imperata cylindrica)、五节芒(Miscan-thus floridulus)等,平均高度80~100 cm地下根系密度增大,枯落物量增加,地上生物量约1.0~1.8 kg/m² |
| 撂荒15 a | 106°37′41″~106°37′45″ | 26°26′54″~ 26°26′56″ | 1 185~1 196 | 14~21 | 0.5~3.0 | 30~80 | 以灌木和多年生草本植物为主,主要有火棘(Pyracantha fortuneana)、小果蔷薇(Rosa cymosa)、金佛山荚蒾(Vibur-num chinshanense)、白茅(Imperata cy-lindrica)、五节芒(Miscanthus floridu-lus)等,平均高度1.0~2.5 m,根系深,多为难分解枯落物,地上生物量约2.5~4.0 kg/m² |
), ArticleFig(id=1312009666087977398, tenantId=1146029695717560320, journalId=1311385839672066169, articleId=1312009656797593962, language=CN, label=表1, caption=
样地基本信息
, figureFileSmall=null, figureFileBig=null, tableContent=
| 类型 | 经度(E) | 纬度(N) | 海拔/m | 坡度/(°) | 枯落物 厚度/cm | 植被覆盖度/% | 样地特征 |
|---|
| CK | 106°38′05″~106°38′06″ | 26°27′06″~ 26°27′07″ | 1 180~1 193 | 13~20 | 0 | 30~80 | 年种植玉米(Zea mays)、土豆(Solanum tuberosum)等农作物,碳输入以作物根系为主,量少且季节性强。地上部分收获后移除,枯落物极少 |
撂荒 5 a | 106°38′06″~106°38′07″ | 26°27′08″~ 26°27′09″ | 1 189~1 203 | 13~22 | 0.03~0.1 | 30~80 | 以一年生草本植物为主,优势物种为荩草(Arthraxon hispidus)、狗尾草(Seta-ria viridis)、鬼针草(Bidens pilosa)、一年蓬(Erigeron annuus)等,平均高度20~60 cm碳输入以浅根系易分解枯落物为主,地上生物量约0.3~0.6 kg/m² |
| 撂荒10 a | 106°38′31″~106°38′35″ | 26°28′08″~ 26°28′22″ | 1 179~1 205 | 14~23 | 0.2~0.5 | 30~80 | 以多年生草本植物为主,主要有白茅(Imperata cylindrica)、五节芒(Miscan-thus floridulus)等,平均高度80~100 cm地下根系密度增大,枯落物量增加,地上生物量约1.0~1.8 kg/m² |
| 撂荒15 a | 106°37′41″~106°37′45″ | 26°26′54″~ 26°26′56″ | 1 185~1 196 | 14~21 | 0.5~3.0 | 30~80 | 以灌木和多年生草本植物为主,主要有火棘(Pyracantha fortuneana)、小果蔷薇(Rosa cymosa)、金佛山荚蒾(Vibur-num chinshanense)、白茅(Imperata cy-lindrica)、五节芒(Miscanthus floridu-lus)等,平均高度1.0~2.5 m,根系深,多为难分解枯落物,地上生物量约2.5~4.0 kg/m² |
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