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百山祖国家公园龙泉片区黑麂栖息地预测

Habitat prediction of black muntjac (Muntiacus crinifrons) in the Longquan Area of Baishanzu National Park

  • 摘要:
    目的 在百山祖国家公园龙泉片区开展黑麂生境适宜性评价,为制定黑麂及其栖息地的针对性保护措施提供科学依据。
    方法 通过红外相机监测技术获取位点数据,并结合海拔、距道路距离和距居民点距离等7种环境变量,采用 MaxEnt模型评价分析百山祖国家公园龙泉片区中黑麂的生境适宜性。
    结果 MaxEnt模型可以较准确地预测黑麂生境适宜性空间分布。黑麂高适宜生境主要分布在片区内黄茅尖、凤阳尖、烧香岩、天堂山的山麓之间以及海拔较高的乔木林内。高适宜区面积为54.54 km2,占片区总面积的 21.90%。因子变量贡献分析表明,距居民点距离、海拔、坡向和距道路距离的贡献率分别为50.9%、24.1%、10.7%和7.2%。
    结论 针对海拔800 m以上、坡度15°~30°的阔叶林和针阔混交林,建议通过全林抚育、灌木层带状劈抚和适当补植黑麂食物源植物等措施,优化林下结构与食物资源,同时对针叶林实施常绿阔叶林改造。在后续保护措施中,应重点在不同海拔地带,逐步形成结构稳定、食物供应持续的优质黑麂栖息地。

     

    Abstract:
    Objectives This study conducts a habitat suitability assessment for the black muntjac (Muntiacus crinifrons) within the Longquan Area of Baishanzu National Park, aiming to provide a scientific basis for formulating targeted conservation strategies for both the species and its habitat.
    Methods Using the site data obtained through infrared camera monitoring technology and combining seven environmental variables such as elevation, distance to roads, and distance to settlements, the MaxEnt model was employed to evaluate and analyze the habitat suitability of the black muntjac in the Longquan Area of Baisanzu National Park.
    Results The results indicated that the MaxEnt model could accurately predict the spatial distribution of the black muntjac's habitat suitability. High-suitability habitats for the black muntjac were mainly distributed among the foothills of Huangmao Peak, Fengyang Peak, Shaoxiang Rock, and Tiangong Mountain, as well as within the high-elevation arbor forests within the area. The total area of high-suitability zones was 54.54 km2, accounting for 21.90% of the total park area. The factor variable contribution analysis showed that the distance to settlements, elevation, aspect, and distance to roads were 50.9%, 24.1%, 10.7%, and 7.2%, respectively.
    Conclusions For broad-leaved forests and mixed coniferous-broad-leaved forests situated above 800 m in elevation and on slopes ranging from 15° to 30°, it is recommended to implement measures such as overall forest tending, strip thinning of the shrub layer, and targeted supplemental planting of forage species for black muntjac. Concurrently, evergreen broad-leaved forest restoration should be implemented for existing coniferous stands. Future conservation interventions should prioritize the gradual development of structurally stable, high-quality black muntjac habitats characterized by sustained food provisioning across various elevational gradients.

     

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