WANG Zixuan,LI Xuejiao,WANG Ding,et al.Relationship Between Understory Vegetation Characteristics and Soil Nutrients in Elaeagnus angustifolia-Caragana korshinskii Forests With Different Degradation Degrees in the Lower Reaches of Shiyang River[J].Northern Horticulture,2025,(19):94-101.[doi:10.11937/bfyy.20250368]
石羊河下游不同退化程度沙枣-柠条林林下植被特征与土壤养分关系
- Title:
- Relationship Between Understory Vegetation Characteristics and Soil Nutrients in Elaeagnus angustifolia-Caragana korshinskii Forests With Different Degradation Degrees in the Lower Reaches of Shiyang River
- 文章编号:
- 1001-0009(2025)19-0094-08
- Keywords:
- lower Shiyang River; Elaeagnus angustifolia forest; Caragana korshinskii forest; plant diversity; soil nutrient
- 分类号:
- S 718.5
- 文献标志码:
- A
- 摘要:
- 以石羊河下游干旱地区退化的沙枣纯林、柠条纯林与沙枣-柠条混交林人工林为试材,采用野外调查与试验分析方法,研究了不同退化林地林下植物多样性、土壤养分差异以及土壤因子与林下植物多样性的相关性,以期为退化人工林的管理与保护提供参考依据。结果表明:轻度退化的沙枣、柠条纯林样地Shannon-wiener指数、Simpson指数与Pielou指数均极显著大于中度与重度沙枣-柠条退化混交林样地(P<0.01)。干旱区沙枣林地对土壤pH的改善作用强于柠条林地,但沙枣退化程度越严重土壤碱性越强;固氮灌木柠条的种植能有效提升土壤中水解氮含量,但随着柠条的退化程度加重,土壤中水解氮含量呈下降趋势。干旱区不同退化程度沙枣纯林、柠条纯林与沙枣-柠条混交林土壤pH、有机碳、水解氮、速效磷和速效钾这5项养分指标与林下植物多样性之间无显著相关性(P<0.05)。
- Abstract:
- Taking the degradedpure Elaeagnus angustifolia,pure Caragana korshinskii and mixed forests of Elaeagnus angustifolia and Caragana korshinskii in the arid area lower reaches of the Shiyang River as the test materials,using field investigation and experimental analysis methods to study the diversity of understory,soil nutrient differences and the correlation between soil factors and understory diversity in different degraded forest lands,in order to provide reference for the management and protection of degraded forest lands.The results showed that Shannon-wiener index,Simpson index and Pielou index of light degraded pure forest plots of Elaeagnus angustifolia and Caragana korshinskii were significantly higher than those of moderately and severe degraded mixed forest plots(P<0.01).The effect of Elaeagnus angustifolia forest on soil pH improvement was stronger than that of Caragana korshinskii forest in arid area.However,the soil alkalinity was stronger when the Elaeagnus angustifolia degradation degree was more serious.The planting of nitrogen-fixing vegetation Caragana korshinskii could effectively increase the content of hydrolytic nitrogen in soil.However,with the deterioration of caragana vegetation increasing,the content of hydrolytic nitrogen in soil showed a decreasing trend.There was no significant correlation between soil pH,organic carbon,hydrolyzed nitrogen,available phosphorus,available potassium and understory vegetation diversity in Elaeagnus angustifolia forest,Caragana korshinskii forest and Elaeagnus angustifolia and Caragana korshinskii mixed forest with different degradation degrees in the arid area(P<0.05).
参考文献/References:
[1]ZHANG Y,ZHU G,MA H,et al.Effects of ecological water conveyance on the hydrochemistry of a terminal lake in an inland river:A case study of Qingtu lake in the Shiyang River Basin[J].Water,2019,11(8):1673.[2]王同红,王旭峰,杨彦鹏,等.河西地区2000—2020年植被生态需水量估算[J].西北师范大学学报(自然科学版),2024,60 (4):12-25.[3]HOWE P D.Extreme weather experience and climate change opinion[J].Current Opinion in Behavioral Sciences,2021,42:127-131.[4]董雪兵,周谷平.中国西部大开发发展报告[M].北京:中国人民大学出版社,2020.[5]王婕.生态文明视域下我国沙地生态治理研究:以毛乌素沙地为例[D].成都:电子科技大学,2020.[6]武海雯,杨秀艳,王计平,等.沙枣改善盐碱土壤养分的研究进展[J].生态学杂志,2019,38(11):3527-3534.[7]常兆丰.甘肃河西60年防沙治沙的问题及出路[J].干旱区资源与环境,2019,33(9):152-159.[8]ZHAO Y,WANG L,KNIGHTON J,et al.Contrasting adaptive strategies by Caragana korshinskii and Salix psammophila in a semiarid revegetated ecosystem[J].Agricultural and Forest Meteorology,2021,300:108323.[9]寇文华,侯红蕊,魏亚娟.吉兰泰荒漠绿洲过渡带不同生境植被多样性与土壤养分特征研究[J].北方园艺,2024(7):82-88.[10]海龙.毛乌素沙地杨柴人工灌木林土壤有机碳与呼吸作用特征研究[D].呼和浩特:内蒙古农业大学,2023.[11]SHRESTHA R,KARMACHARYA S B,JHA P K.Vegetation analysis of natural and degraded forests in Chitrepani in Siwalik region of Central Nepal[J].Tropical Ecology,2000,41(1):111-114.[12]陈璐霞.退化林修复后林分结构和目标树竞争强度变化[D].武汉:华中农业大学,2023.[13]寇志伟.毛乌素榆林沙区灌木防护林健康评价[D].杨凌:西北农林科技大学,2021.[14]BERHE D H,RETTA A N,TEFERA A S,et al.Ecological study and forest degradation of the Waldiba Monastery woodland in Tigrai,Ethiopia[J].Discover Sustainability,2024,5(1):57.[15]段河,张建波,张忠旺.内蒙古三北工程区退化林现状分析与修复建议[J].林业资源管理,2022(1):174-179.[16]BERGERA L,PUETTMANNK J.Overstory composition and stand structure influence herbaceous plant diversity in the mixed aspen forest of northern Minnesota[J].The American Midland Naturalist,2000,143(1):111-125.[17]周来,程小芳,张梦弢.林窗对华北落叶松天然次生林林下物种多样性的影响[J].北京林业大学学报,2024,46(6):48-56.[18]李天玲.马尾松林窗年龄、面积对植物多样性、土壤理化性质及油樟化学计量特征的影响[D].雅安:四川农业大学,2020.[19]WEIDENHAMERJ D,CALLAWAY R M.Direct and indirect effects of invasive plants on soil chemistry and ecosystem function[J].Journal of Chemical Ecology,2010,36(1):59-69.[20]高磊,杨光,吴际,等.毛乌素沙地沙柳沙障对植被群落及土壤理化性质的影响[J].北方园艺,2023(15):81-89.[21]赵耕毛,杨梦圆,陈硕,等.我国盐碱地治理:现状、问题与展望[J].南京农业大学学报,2025,48(1):14-26.[22]HONG S,PIAO S,CHEN A,et al.Afforestation neutralizes soil pH[J].Nature Communications,2018,9(1):520.[23]SINGH K,SINGH B,SINGH R R.Changes in physico-chemical,microbial and enzymatic activities during restoration of degraded sodic land:Ecological suitability of mixed forest over monoculture plantation[J].CATENA,2012,96:57-67.[24]JO I,FRIDLEY J D,FRANK D A.Rapid leaf litter decomposition of deciduous understory shrubs and lianas mediated by mesofauna[J].Plant Ecology,2020,221(1):63-68.[25]杨红玲,姚博,苏永中,等.北方农牧交错带人工林土壤理化性质分布格局[J].中国沙漠,2024,44(2):283-294.[26]孙婉怡,余新晓,贾国栋,等.内蒙古半干旱地区不同人工林土壤因子与林下植物多样性的相关性[J].东北林业大学学报,2024,52(7):51-57.[27]刘云超.不同林龄沙地云杉林凋落物分解及土壤养分动态研究[D].哈尔滨:东北林业大学,2022.[28]HAN W,LU H,LIU G,et al.Quantifying degradation classifications on alpine grassland in the Lhasa River Basin,Qinghai-Tibetan Plateau[J].Sustainability,2019,11(24):7067.[29]MA Y C,ZHANG J,GAO Y M,et al.Comprehensive evaluation on soil nutrient change characteristics and quality of different degraded grasslands in Qilian Mountains[J].Acta Agrestia Sinica,2022,30(7):1621-1629.[30]曹颖,聂明鹤,沈艳,等.宁夏干旱风沙区荒漠草原不同退化阶段植被土壤变化特征及其相关性[J].草业学报,2024,33(8):1-14.[31]YANG C,WANG C Y,WANG W Y,et al.Soil nutrient characteristics and quality evaluation of alpine grassland in the source area of the Yellow River on the Qinghai Tibet Plateau[J].Ecology and Environmental Sciences,2022,31(5):896-908.[32]WU G L,RENG H,DONG Q M,et al.Above-and belowground response along degradation gradient in an alpine grassland of the Qinghai-Tibetan Plateau[J].Clean-Soil,Air,Water,2014,42(3):319-323.[33]LIU M,ZHANG Z,SUN J,et al.The response of vegetation biomass to soil properties along degradation gradients of alpine meadow at zoige plateau[J].Chinese Geographical Science,2020,30(3):446-455.[34]徐来仙,何友均,艾训儒,等.基于森林生态系统服务权衡与协同的森林可持续管理[J].生态学报,2024,44 (4):1347-1359.[35]陈璐霞.退化林修复后林分结构和目标树竞争强度变化[D].武汉:华中农业大学,2023.[36]张金霞,曹广民.高寒草甸生态系统氮素循环[J].生态学报,1999(4):509-512.
备注/Memo
第一作者简介:王梓璇(1992-),女,博士,副研究员,现主要从事森林生态学等研究工作。E-mail:15247130306@163.com.责任作者:何芳兰(1980-),女,博士,研究员,现主要从事荒漠植物生理生态等研究工作。E-mail:hefanglan2003@126.com.基金项目:甘肃省农业大学科研启动基金资助项目(GAU-KYQD-2020-25);中央财政林业科技推广示范资金资助项目(2024ZYTG04);国家自然科学基金资助项目(32460431);陇原青年创新创业人才资助项目(2023LQGR58);甘肃省高校青年博士支持资助项目(2023QB-131)。收稿日期:2025-02-10