广西科学院学报2025，Vol.41Issue(2)：213-221,9.DOI:10.13657/j.cnki.gxkxyxb.20250722.007
基于MaxEnt模型的林芝市越冬赤麻鸭生境适宜性评价
Habitat Suitability Evaluation of Wintering Tadorna ferrug-inea in Nyingchi Based on MaxEnt Model
摘要
Abstract
Mastering the habitat needs of species and the spatial distribution pattern of suitable habitats is cru-cial for the protection of species.In this study,46 effective distribution points of Tadorna ferruginea over-wintering in Nyingchi were collected through field investigation and network retrieval.After using the Maxi-mum Entropy(MaxEnt)model pre-experiment and ENMTools tool to screen 12 major environmental varia-bles,the MaxEnt model was used to predict and analyze its suitable habitat.The results showed that the Ar-ea Under Curve(AUC)value of the Receiver Operating Characteristic(ROC)in the MaxEnt model was as high as 0.950,which indicated that the model had high accuracy and the prediction results had high credibili-ty.The main environmental factors affecting the overwintering habitat selection of T.ferruginea in Nying-chi included distance from roads(contribution rate 56.4％),distance from water sources(contribution rate 9.3％),precipitation in the driest month(contribution rate 8.9％),land use type(contribution rate 8.6％),slope(contribution rate 6.2％),and minimum temperature in the coldest month(contribution rate 6.1％).The suitable habitats for T.ferruginea are usually located near the water source with close distance to the road,mild climatic conditions and high vegetation coverage on both sides of the river bank.From the distri-bution map of suitable habitats,the high suitable habitat area of T.ferruginea only accounts for 1.25％of the total study area,which indicates that there is a large area of ecological protection blank area in Nyingchi,and it is recommended to take measures to protect and improve the habitat quality of T.ferruginea.关键词
赤麻鸭/最大熵模型/生境/适宜性评价Key words
Tadorna ferruginea/maximum entropy model/habitat/suitability evaluation分类
农业科技引用本文复制引用
陈进勋,邬玖久,沈邱筱潇,申婉青,邹成成,王忠斌..基于MaxEnt模型的林芝市越冬赤麻鸭生境适宜性评价[J].广西科学院学报,2025,41(2):213-221,9.基金项目
2023年中央财政林业草原生态保护恢复资金国家级自然保护区补助项目(S202310372050)和2023年全国越冬水鸟林芝地区同步监测项目(2023XZLZ406)资助. （S202310372050）
