莲花卷瓣兰在浙江绍兴的新分布及其在中国的潜在适生地  

The New Distribution of Bulbophyllum hirundinis in Shaoxing,Zhejiang and Its Potential Habitat in China

作　　者：陈凯 高湧 林心昀 童城威 张弘稷 王黎瑾[1] 乔芬 CHEN Kai;GAO Yong;LIN Xinyun;TONG Chengwei;ZHANG Hongji;WANG Lijin;QIAO Fen(School of Ecology,Lishui University,Lishui 323000,Zhejiang;Hangzhou Branch,Shanghai Jianke Environmental Technology Co.Ltd.,Hangzhou 310000,Zhejiang)

机构地区：[1]丽水学院生态学院,浙江丽水323000 [2]上海建科环境技术有限公司杭州分公司,浙江杭州310000

出　　处：《丽水学院学报》2024年第2期10-19,共10页Journal of Lishui University

基　　金：国家自然科学基金资助项目“小麦孢囊线虫新效应因子Ha-63744功能与互作机制研究”(31901860);丽水学院横向课题“新昌县小型水电站报废重建(生态改造)一期项目水生和陆生生态调查与评价”(HXZKB2023048)。

摘　　要：文章报道了莲花卷瓣兰(Bulbophyllum hirundinis)的地理新分布,研究它在当前气候下的潜在适生区,为该物种的研究与资源保护提供了基础数据。测量并收集新发现植株的形态特征数据、生境数据等。基于当前气候环境数据与收集到的莲花卷瓣兰地理分布数据,利用最大熵模型(MaxEnt),分析影响莲花卷瓣兰分布的主导因子,并对该物种在中国的适宜性分布区进行预测。经比对,确定新发现的植株是莲花卷瓣兰。MaxEnt模型受试者工作曲线(ROC)中的曲线下面积(AUC)值为0.939,说明该模型具有较高的精度,能较好地预测莲花卷瓣兰的潜在适生区。影响莲花卷瓣兰分布的主导因子为年均气温、冷季降雨量、年温度变化范围、年平均日较差、雨期降雨量。当前气候下,莲花卷瓣兰适宜性分布区主要位于南部过渡带以南地区,总面积为216.73×10^(4)km^(2),占全国总面积的22.53%。年均气温是影响莲花卷瓣兰分布的最主要的气候因子,贡献度为56.1%。莲花卷瓣兰潜在的最适宜分布区在广东、广西、海南、台湾地区等地。该预测结果可以为莲花卷瓣兰的保护提供参考。This article reports the new geographical distribution of Bulbophyllum hirundinis,studies its potential habitat in the current climate,and provides basic data for the research and resource conservation of this species We measured and collected the morphological characteristics and habitat data of the newly discovered plants.Based on the current climate and environmental data and the collected geographical distribution data of Bulbophyllum hirundinis,we used the Maximum Entropy Model(MaxEnt)to analyze the dominant factors affecting the distribution of Bulbophyllum hirundinis and predict the suitable distribution area of this species in China.By comparison,we confirmed that the newly discovered plants were Bulbophyllum hirundinis.The Area Under the Curve (AUC) value in the Receiver Operating Curve (ROC) of the MaxEnt model is 0.939,indicating that the model has high accuracy and can predict the potential habitat of Bulbophyllum hirundinis well.The dominant factors affecting the distribution of Bulbophyllum hirundinis are average annual temperature,rainfall during the cold period,annual temperature range,average annual daily temperature range,and rainfall during the rainy period.In the current climate,the suitable distribution area of Bulbophyllum hirundinis is mainly located to the south of the southern transition zone,with a total area of 216.73×10^(4)km^(2),accounting for22.53%of the total area of the country.The average annual temperature is the most important climatic factor affecting the distribution of Bulbophyllum hirundinis,with a contribution of 56.1%.The most suitable distribution area of Bulbophyllum hirundinis is in Guangdong,Guangxi,Hainan,Taiwan region and so on.The prediction results can provide reference for the conservation of Bulbophyllum hirundinis.

关 键 词：浙江 绍兴 兰科 新记录 莲花卷瓣兰 MAXENT 

分 类 号：Q948.2[生物学—植物学]