Distribution and Climate Model of Four Type Species of Miscanthusin China
XIAO Liang;YI Zi-li;Hunan Engineering Laboratory for Ecological Applications of Miscanthus Resource;Biological Science and Technology,College of Hunan Agricultural University;
In order to confirm the distribution and temperature mode of four types of Miscanthus in China,this paper combined collected specimen and field investigation,analyzed statistically on geographical and climatic factors of four types Miscanthus wild population.The results as following:firstly,the horizontal distribution of Miscanthus lutarioriparius was 111.48~120.81°E and 28.18~34.82°N,respectively,the vertical distribution was 0~321 m;the horizontal distribution of Miscanthussaccharifloruswere 29.90~47.53°N and 106.27~113.76°E,respectively,the vertical distribution was-1~1 455 m;the horizontal distribution of Miscanthus floridulus was 19.14~38.33°N and 104.78~122.39°E,respectively,the vertical distribution was 0~1 650 m;the horizontal distribution of Miscanthussinensiswas 18.81~43.56°N and 100.44~127.55°E,respectively,the vertical distribution was-12~1 678 m.Secondly,the temperature mode of Miscanthusas following:the yearly average precipitation was between 202.40 and 2 444.00 mm,the annual accumulated temperature was between 2 074.00 ℃ and 8 500.00 ℃,the yearly average temperature was between 1.20℃ and 24.40℃,the extremely high temperature was between 30.90℃ and45.20℃in summer,extremely low temperature was-23.21~10.64 ℃in winter,the average temperature of January was between-24.10℃ and 18.70℃,Average temperature of July was between 18.00℃and 32.70℃,the frost-free period was between 110.00 dand 365.00 d,Annual accumulated sun time was between 511.00 hand 2868.00 h.Thirdly,the results of principal component analysis showed as following:PC1 could be explained by the temperature factor,which included the average temperature of January and the frost-free period in whole year.PC2 was decided by the yearly average precipitation and the annualaccumulated sun time.The previous results showed that Miscanthus had a wide distribution and strong adaptability to the climate,which was used to develop as an energy plant.
【CateGory Index】： Q948
【CateGory Index】： Q948