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芒和五节芒在中国的潜在分布
引用本文:周婧,李巧云,肖亮,蒋建雄,易自力.芒和五节芒在中国的潜在分布[J].植物生态学报,2012,36(6):504-510.
作者姓名:周婧  李巧云  肖亮  蒋建雄  易自力
作者单位:湖南农业大学生物科学技术学院, 长沙 410128
基金项目:国家自然科学基金(30971832);孟德尔基金资助
摘    要: 利用最大熵模型, 将我国现有芒(Miscanthus sinensis)和五节芒(M. floridulus)的地理分布信息与19个降水及温度等气候因子相拟合, 预测了芒和五节芒在我国的潜在分布区域, 并推测出芒和五节芒的基本生态位。结果显示: 芒的潜在适生区包括四川西部、陕西北部、宁夏、内蒙古中部、黑龙江、吉林西部、辽宁西部、青海东南部等地区, 其基本生态位参数为: 最暖季节降水量为400–1 000 mm, 平均8月降水量为100–350 mm, 7月平均最低气温为15 ℃, 平均7月降水量为100–350 mm, 11月平均最高气温为–10–22 ℃, 最干月平均气温为–15–20 ℃, 平均12月降水量为100 mm以下; 五节芒的潜在适生区为云南、陕西、山西、宁夏、河南、山东、吉林、辽宁以及四川西部、甘肃南部和内蒙古东部等地区, 其基本生态位参数为: 最暖季节降水量至少在400 mm以上, 平均6月降水量为150–550 mm, 7月平均最低气温在15–30 ℃之间, 6月平均最低气温为10 ℃, 平均4月降水量为50–100 mm。结果表明, 在进行遗传改良的前提下, 我国有丰富的适合栽植芒和五节芒的土地资源。

关 键 词:最大熵(MAXENT)模型  五节芒    多年月平均气温  潜在分布  降水量
收稿时间:2012-01-11
修稿时间:2012-03-15

Potential distribution of Miscanthus sinensis and M. floridulus in China
ZHOU Jing , LI Qiao-Yun , XIAO Liang , JIANG Jian-Xiong , YI Zi-Li.Potential distribution of Miscanthus sinensis and M. floridulus in China[J].Acta Phytoecologica Sinica,2012,36(6):504-510.
Authors:ZHOU Jing  LI Qiao-Yun  XIAO Liang  JIANG Jian-Xiong  YI Zi-Li
Affiliation:College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
Abstract:Aims In recent years, Miscanthus sinensis and M. floridulus have attracted considerable attention as two of the most promising non-food energy crops in China. We attempt to determine the potential distributions of the two Miscanthus species to provide a reference for developing non-food energy crops using marginal lands in China. Methods We predicted the potential distribution and fundamental niches of M. sinensis and M. floridulus in China based on the maximum entropy (MAXENT) model using distribution data of the two species combined with 19 climatic factors. Important findings The potential distribution area for M. sinensis covers west Sichuan, north Shaanxi, Ningxia, central Inner Mongolia, Heilongjiang, west Jilin, west Liaoning, southeast Qinghai, etc. Its fundamental niche parameters are: precipitation of warmest quarter of 400–1 000 mm, average precipitation in August of 100–350 mm, average minimum air temperature in July of 15 °C, average precipitation in July of 100–350 mm, average maximum air temperature in November of –10 to 22 °C, mean temperature of driest quarter of –15 to 20 °C and average precipitation in December <100 mm. The potential distribution area for M. floridulus includes Yunnan, Shaanxi, Shanxi, Ningxia, Henan, Shandong, Jilin, Liaoning, west Sichuan, south Gansu and east Inner Mongolia, etc. Its fundamental niche parameters are: precipitation of warmest quarter>400 mm, mean precipitation in June of 150–550 mm, average minimum air temperature of 15–30 °C in July and 10 °C in June and average precipitation in April of 50–100 mm. The results show that there are abundant land resources for growing M. sinensis and M. floridulus in China.
Keywords:maximum entropy (MAXENT) model  Miscanthus floridulus  M  sinensis  monthly average air temperature for many years  potential distribution  precipitation
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