| 勾承馥.基于多重中介效应模型的不同立地条件杉木人工林水源涵养能力评价[J].林业调查规划,2026,51(1):153-159 |
| 基于多重中介效应模型的不同立地条件杉木人工林水源涵养能力评价 |
| Evaluation of Water Conservation Capacity in Cunninghamia lanceolata Plantations under Different Site Conditions Based on Multiple Mediation Effect Model |
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| DOI： |
| 中文关键词: 水源涵养能力 杉木人工林 立地条件 多重中介效应模型 |
| 英文关键词: water conservation capacity Cunninghamia lanceolata plantation site conditions multiple
mediation effect model |
| 基金项目: |
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| 摘要点击次数: 453 |
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| 中文摘要: |
| 为评价贵州省普定县不同立地条件下杉木人工林水源涵养能力,结合CNRDS数据库的相关数据,构建多重中介效应模型,分析不同立地条件对杉木人工林水源涵养能力自变量、中介变量、因变量的影响。 结果表明,不同立地条件下,坡度<15°、海拔(1 200 m)和林分密度(650 株/hm2
)可保持良好的杉木人工林水源涵养能力;杉木人工林水源涵养能力对中介变量降水截留、地表径流、气候因素、土壤条件、枯枝落叶层、生物多样性均产生间接影响。 |
| 英文摘要: |
| To evaluate the water conservation capacity of Cunninghamia lanceolata plantations under different site conditions in Puding County of Guizhou Province, a multiple mediation effect model was constructed by integrating relevant data from the CNRDS database. This model was used to analyze the
effects of different site conditions on the independent variables, mediating variables, and dependent variables related to the water conservation capacity. The results indicated that under different site conditions,
a slope <15°, an altitude of 1 200 m, and a stand density of 650 trees/ hm2
contributed to maintaining a
favorable water conservation capacity in C. lanceolata plantations. The water conservation capacity of
C. lanceolata plantations indirectly influenced mediating variables including precipitation interception,
surface runoff, climatic factors, soil conditions, litter layer, and biodiversity. |
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