文献类型：期刊文献

中文题名：矿区6种藤本植物的叶功能性状及其对覆土厚度的响应

英文题名：Leaf Functional Traits of Six Liana Species in Mining Area and Their Responses to Covering Soil Thickness

作者：刘仁[1,2] 袁小东[3] 孙韵[1,2] 蔡宗明[1,2] 何平[1,2] 宋云霞[1,2] 喻龙华[1,2] 张华聪[1,2] 厉月桥[1,2]

第一作者：刘仁

机构：[1]中国林业科学研究院亚热带林业实验中心/新余市森林碳汇监测与调控重点实验室,江西新余336600;[2]生物多样性保护与资源利用江西省重点实验室,江西新余336600;[3]新余市生态保护中心,江西新余336600

年份：2026

卷号：48

期号：1

起止页码：99-114

中文期刊名：西南大学学报(自然科学版)

外文期刊名：Journal of Southwest University(Natural Science Edition)

收录：;北大核心:【北大核心2023】；

基金：江西省林业科技创新项目(创新专项〔2023〕29号);江西省自然科学基金青年基金项目(20242BAB20262);新余市科技计划项目(余科发〔2022〕40号)。

语种：中文

中文关键词：藤本植物;叶功能性状;叶经济谱;覆土厚度

外文关键词：vines plants;leaf functional traits;leaf economic spectrum;thickness of covering soil

分类号：Q948.1

摘要：明确6种藤本植物在不同覆土厚度下的适应性差异,筛选出耐薄土或厚土的优势物种,为矿区人工植被重建提供科学选种和覆土厚度依据,提升生态修复效率。以矿区中6种藤本植物(五叶地锦、葛藤、常春藤、凌霄、常春油麻藤、爬山虎)为试验材料,利用主成分分析法、隶属函数法研究3种覆土厚度下6种藤本植物叶功能性状及氮磷养分策略的差异,对6种藤本植物各项指标进行综合分析及评价。结果表明:①在覆土厚度20 cm下五叶地锦生长状况最佳;在覆土厚度40 cm下爬山虎和凌霄生长优势较高;在覆土厚度60 cm下葛藤、常春藤和常春油麻藤表现出较好的适应性和生长优势。②五叶地锦和凌霄在覆土厚度20 cm下增加根系投资以增强养分获取,在覆土厚度60 cm下则转向增加叶生物量以优化光合作用;葛藤和常春油麻藤在各厚度下均表现出较高的生物量积累,显示出较强的适应潜力;在覆土厚度20 cm下葛藤和常春油麻藤表现为“快投资-回报”资源获取型策略,具有高比叶面积、低叶干物质含量特征,利于快速生长与资源捕获,而爬山虎和常春藤则倾向于“慢投资-回报”资源保守型策略,具有高比叶质量和叶干物质含量,增强了其对贫瘠环境的耐受性。③所有藤本植物生长均受氮磷限制,不同藤本植物在不同覆土厚度下对氮磷养分的吸收与分配策略存在差异。五叶地锦在薄土层(20 cm)下茎根氮磷吸收量突出;葛藤与常春油麻藤则在厚土层(60 cm)下各器官养分吸收量较高,体现了豆科植物的固氮优势。总的来看,藤本植物通过调整生物量分配、叶片形态和养分吸收策略来适应不同覆土厚度以提升生长和竞争力。
The adaptability differences of six vines plants under different soil thicknesses were clarified,and the dominant species resistant to thin soil or thick soil were screened out,which provides scientific selection and soil thickness basis for artificial vegetation reconstruction in mining area,and improves the efficiency of ecological restoration.In this study,six vines plants(Parthenocissus quinquefolia,Pueraria lobata,Hedera nepalensis,Campsis grandiflora,Mucuna sempervirens,Parthenocissus tricuspidata)in the mining area were used as experimental materials.The differences of leaf functional traits and nitrogen and phosphorus nutrient strategies of six vines plants under three soil thicknesses were studied.The indexes of six vines plants were comprehensively analyzed and evaluated by principal component analysis and membership function method.The results have shown that,①The growth of Parthenocissus quinquefolia was the best when the soil was 20 cm,and the growth advantages of Parthenocissus tricuspidata and Campsis grandiflora are higher when the soil was 40 cm,while Pueraria lobata,Hedera nepalensis and Mucuna sempervirens showed better adaptability and growth advantages when the soil was 60 cm.②Parthenocissus quinquefolia and Campsis grandiflora augmented root investment to enhance nutrient acquisition at a soil depth of 20 cm.Conversely,at a soil depth of 60 cm,they shifted towards increasing leaf biomass to optimize photosynthesis.Pueraria lobata and Mucuna sempervirens demonstrated higher biomass accumulation across all soil depths,suggesting strong adaptability.Moreover,Pueraria lobata and Mucuna sempervirens adopted a“fast investment-return”strategy at a soil depth of 20 cm,characterized by a high specific leaf area and low leaf dry matter content,which facilitated rapid growth and resource capture.In contrast,Parthenocissus tricuspidata and Hedera nepalensis tended to follow a“conservative”strategy,featuring a high specific leaf mass and leaf dry matter content,thereby enhancing tolerance to nutrient-poor environments.The growth of all vine plants was nitrogen-limited.③Different vines plants exhibited distinct nitrogen and phosphorus absorption and allocation strategies at varying soil depths.Parthenocissus quinquefolia displayed prominent nitrogen and phosphorus absorption in stems and roots in shallow soil(20 cm),while Pueraria lobata and Mucuna sempervirens showed significantly higher nutrient uptake in all organs in deep soil(60 cm),reflecting the nitrogen-fixation advantage of leguminous plants.Overall,vines plants adapted to different soil thicknesses to improve growth and competitiveness by adjusting biomass allocation,leaf morphology,and nutrient uptake strategies.