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用MaxEnt模拟湖北海棠(Malus hupehensis)地理分布
王雷宏,杨俊仙,黄成林
0
(安徽农业大学林学与园林学院;安徽农业大学理学院)
摘要:
采用湖北海棠551个分布数据以及当前生物气候数据,用MaxEnt软件模拟了它的地理分布。结果显示:①潜在分布地区有巴基斯坦北部、印度北部、尼泊尔、不丹、缅甸东北部、越南西北部、广西北部、西藏南部及东南部、日本岛东南侧、朝鲜半岛中南部及沿海地区;河北东北部、山东半岛北部和辽宁南部,其中分布值在0.6~1的地区有不丹、韩国济州岛及附近岛屿和日本及附近岛屿。②分布记录非常少,但分布值已达0.6~1的地区有山西东南部、江苏省南通、四川雅安市汉源和山东崂山。③以分布值在0.6~1的地区来表示现实地理分布格局,自西东向分布为喜马拉雅南部,东南部-横断山-秦岭-巫山-长江中下游山地-武夷山-朝鲜半岛-日本岛。自北向南,北界在太行山南部,南界武夷山西南部。④Jackknife test检测表明干旱季节的平均温度对湖北海棠的分布增益贡献最大,本种自然分布于干旱季节平均气温在-10℃~15℃的地区。
关键词:  湖北海棠  MaxEnt  地理分布
DOI:
基金项目:安徽省优秀青年自然科学基金(10040606Q18)和安徽农业大学人才引进基金(2008010)
Modelling geographic distribution of Malus hupehensis with MaxEnt
WANG Lei-hong,YANG Jun-xian,HUANG Cheng-lin
(School of Forestry & Landscape of Architecture,Anhui Agricultural University;School of Science, Anhui Agricultural University)
Abstract:
Geographic distribution of Malus hupehensis was modelled with MaxEnt by 551 presence recorded data and current bioclimatic data. The results showed that: ①Malus hupehensis would be more likely to occur in those areas (potential distribution), such as northern Pakistan, northern India, Nepal, Bhutan, northeast Myanmar, northwest of Vietnam, northern of Guangxi, the southern and southeastern of Xizang, southeast of Japan, south, center and coast of Korea, northeast of Hebei, north of Shandong, southern of Liaoning. Of which , the areas with 0.6-1 distribution value (logistic) are Bhutan, Cheju Island and coastal islands of Korea, Japan islands and the its nearby islands.② The areas with distribution values 0.6-1 were in the southeast of Shanxi, Nantong of Jiangsu, Hanyuan of Sichuan, and Laoshan of Shandong, although, there were a few present records in those areas. ③ Geographical distribution patterns of M. hupehensis could be expressed using those areas with distribution value 0.6-1, from west to east, the southern and southeastern of the Himalayas, Hengduan Mountains, Qinling Mountains, and Wu Mountains, the mountainous regions of middle and lower reaches of Yangtze River, Wuyi Mountains, Korean Peninsula, the Japan islands. From north to south, the most northern boundary was in the south of the Taihang Mountains, and the southern boundary was in the southwest of the Wuyi Mountains. ④ It was showed that the average temperature in the dry season was the greatest contribution to the distribution gain of M. hupehensis by Jackknife Test, and it was distributed naturally over those areas with average temperature of ﹣10℃-15℃ in the dry season.
Key words:  Malus hupehensis (Pamp.) Rehd.)  maximum entropy method  geographic distribution

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