生态科学2025，Vol.44Issue(2)：65-76,12.DOI:10.14108/j.cnki.1008-8873.2025.02.007
气候变化背景下小叶冷水花在中国的适宜生境动态
Suitable-habitat dynamics of Pilea microphylla in China under climate change
摘要
Abstract
The suitable-habitat dynamics of alien plants is the fundamental information for early detection and rapid response to these species under climate change.Pilea microphylla is an alien plant that has been successfully naturalized in China.In this study,the Maximum Entropy(MaxEnt)model based on the optimization of Regularization Multiplier(RM)and Feature Combination(FC)was used to predict the potential-habitat distribution and suitable-habitat dynamics of P.microphylla under different climate models.The results show that:(1)when the regularization multiplier is 0.1 and the feature combination is linear(L)and product(P),the complexity of the model is relatively low,and the AUC value is more than 0.95.The results indicate that the improved MaxEnt model can provide accurate prediction results.(2)Temperature and precipitation are two dimensions that limit the potential distribution of P.microphylla.Among them,the main limiting factors of the temperature dimension are the monthly mean temperature difference between day and night,the variation range of annual temperature,and the annual average temperature.In contrast,the driest quarter precipitation,the warmest quarter precipitation,and the seasonal variation variance of precipitation are the main limiting factors of the precipitation dimension.(3)Under the current climate model,P.microphylla is mainly distributed in subtropical regions of south China,with a wide geographical distribution.In the future climate scenario,the high-suitability,moderate-suitability,and total potential habitat of P.microphylla will increase.The potential habitat will spread into high-altitude and high-latitude regions.The results can provide a theoretical basis for the prevention and control of P.microphylla under climate warming in the future,and provide a theoretical reference for predicting and managing other alien species.关键词
气候变化/外来物种/潜在地理分布/MaxEnt模型/小叶冷水花Key words
climate change/alien species/potential geographical distribution/MaxEnt model/Pilea microphylla分类
农业科技引用本文复制引用
王世雄,马玉萍,马晓丽,张广奇..气候变化背景下小叶冷水花在中国的适宜生境动态[J].生态科学,2025,44(2):65-76,12.基金项目
国家自然科学基金(32160267) （32160267）
青海师范大学中青年科研基金项目(2019zr011) （2019zr011）
