| 汤桂迎,韩富忠,杨秀玲,雷延明,何 丹,李静雯,卡毛花,李强峰,宋维秀,黄 伟,周华坤,史正晨.麦秀林场不同龄级紫果云杉林下植物群落特征及影响因素研究[J].林业调查规划,2025,50(5):127-136 |
| 麦秀林场不同龄级紫果云杉林下植物群落特征及影响因素研究 |
| Characteristics and Influencing Factors of Understory Plant Communities ofPicea purpurea of Different Ageclasses in Maixiu Forest Farm |
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| DOI： |
| 中文关键词: 群落特征 紫果云杉林下植物 龄级 土壤理化性质 物种多样性 麦秀林场 |
| 英文关键词: community characteristics understory vegetation of Picea purpurea forest ageclass soil
physicochemical properties species diversity Maixiu Forest Farm |
| 基金项目:青海省麦秀林区天然林监测项目(QHFTJC(FW)-2023-023);青海省麦秀林区青海云杉林抚育经营和人工林近自然经营技术研究项目(QHFTJC(FW)-2023-024);黄南州牧光储一体光伏园区生态监测评价项目(QHJF-2023-001);黄南藏族自治州生
物多样性本底调查与研究项目(QHSY-2024-023-01);青海省交通运输厅科技项目(JG2019-07). |
| 作者 | 单位 | | 汤桂迎 | 青海大学 农牧学院,青海 西宁 810016 | | 韩富忠 | 黄南州麦秀林场,青海 黄南州 811401 | | 杨秀玲 | 青海省林业和草原局,青海 西宁 810008 | | 雷延明 | 青海省林业和草原局,青海 西宁 810008 | | 何 丹 | 黄南州麦秀林场,青海 黄南州 811401 | | 李静雯 | 黄南州麦秀林场,青海 黄南州 811401 | | 卡毛花 | 黄南州麦秀林场,青海 黄南州 811401 | | 李强峰 | 青海大学 农牧学院,青海 西宁 810016 | | 宋维秀 | 青海大学 农牧学院,青海 西宁 810016 | | 黄 伟 | 交通运输部天津水运工程科学研究院,天津 300456 | | 周华坤 | 中国科学院西北高原生物研究所,
青海省寒区恢复生态学重点实验室,青海 西宁 810008 | | 史正晨 | 中国科学院西北高原生物研究所,
青海省寒区恢复生态学重点实验室,青海 西宁 810008
青海师范大学化学化工学院,青海 西宁 810016 |
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| 中文摘要: |
| 为研究麦秀林场不同林龄紫果云杉天然林林下植物群落特征及其与土壤特征间的变化规律,
揭示森林演替过程中群落组成与土壤环境因子间的关系。以麦秀林场紫果云杉天然林林下植物群
落为研究对象,探讨土壤理化指标对不同林龄紫果云杉林下植物物种组成的影响。结果表明,麦秀
林场紫果云杉林共发现植物62 种,属于27 科45 属,其中毛茛科植物数量最多,占植物总种数的
33.33%,其次为菊科、蔷薇科和禾本科,占比59.25%;林下草本层Margalef 丰富度指数最高为成熟
林(2.92), 最低为幼龄林(0.11); Simpson优势度指数最高为成熟林(0.89), 最低为幼龄林
(0.23);Shannon-Wiener多样性指数最高为成熟林(2.66),最低为幼龄林(0.56);Pielou均匀度指
数最高为中龄林(0.88),最低为幼龄林(0.22)。在成熟林中土壤全氮、有机碳、全磷、碱解氮含量
及含水量与Margalef 丰富度指数间呈显著正相关(P<0.05),土壤有效磷、铵态氮与Margalef丰富
度指数间呈极显著正相关(P<0.01)。麦秀林场紫果云杉天然林林下草本植物多样性较高,但灌木
种类较少,在幼龄林和中龄林中,土壤理化指标与植物多样性间的相关性不显著,在成熟林中Margalef
丰富度指数主要受土壤有效磷、铵态氮等土壤理化指标的影响。 |
| 英文摘要: |
| This study aimed to investigate the variation patterns between understory plant community
characteristics and soil properties in natural Picea purpurea forests of different ages in Maixiu Forest
Farm, and to reveal the relationship between community composition and soil environmental factors during
forest succession. Focusing on the understory plant communities of natural Picea purpurea forests in Maixiu
Forest Farm, the influence of soil physicochemical indicators on the species composition of understory
plants across different forest ages was explored. The results showed that a total of 62 plant species belonging
to 45 genera and 27 families were found in the Picea purpurea forests of Maixiu Forest Farm, among
which the Ranunculaceae had the highest number of plants, accounting for 33.33% of the total, followed
by Asteraceae, Rosaceae, and Poaceae, together accounting for 59. 25%; for the herb layer, the Margalef
richness index was highest in mature forests(2.92) and lowest in young forests(0.11); the Simpson
dominance index was highest in mature forests(0.89) and lowest in young forests(0.23); the
Shannon-Wiener diversity index was highest in mature forests(2.66) and lowest in young forests
(0.56); the Pielou evenness index was highest in middle-aged forests(0.88) and lowest in young forests
(0.22). In mature forests, soil total nitrogen, organic carbon, total phosphorus, alkali-hydrolyzable
nitrogen content, and water content showed significant positive correlations with the Margalef richness
index (P<0.05), while soil available phosphorus and ammonium nitrogen showed highly significant positive
correlations with the Margalef richness index (P<0.01). The natural Picea purpurea forests in
Maixiu Forest Farm exhibited high herbaceous plant diversity but relatively few shrub species. In young
and middle-aged forests, the correlations between soil physicochemical indicators and plant diversity were
not significant. In mature forests, the Margalef richness index was primarily influenced by soil physicochemical
indicators such as available phosphorus and ammonium nitrogen. |
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