Research on the Characteristics of Microorganisms in Different Forest Lands
XIAO Chun-ling et al (College of Life Sciences , Jinggangshan University, Ji'an, Jiangxi 343009)
[Objective] The study aimed to provide basis for the selection, defending and management of plantation. [Method] The soil samples were collected from different depths of wasteland with thin grass, plantation and natural forestland in Ji'an and Yingtan cities and the microorganism quantity in soil was determined by dilution plate method. [Result] The bacteria number in 0~10 cm soil layer was lower than that in 10~20 cm soil layer in natural forestland, the microorganism quantity and species reduced along with the increment of soil depth and related to the change of soil nutrients significantly. Under the same depth, the microorganism colonies and quantity in natural forestland were more than that in plantation. The microorganism quantities in both plantation and natural forestland had significant difference from that in wasteland with thin grass. The bacteria quantities in both plantation and natural forestland had no significant difference in Ji'an, but had significant difference in Yingtan. The fungi quantity had no difference between plantation and natural forestland and actinomyces had significant difference between natural forestland and plantation. [Conclusion] The microorganism quantity and species in soil were most in natural forestland and secondary in plantation and wasteland with thin grass. The soil fertility in natural forestland was higher than that in plantation, which was more in favor of the growth of soil microorganism.
【CateGory Index】： S718.8