中文摘要：

Microcalorimetry 被用来在土壤的三种类型调查微生物引起的活动，并且在土壤上评估铅(Pb2+) 的不同集中的影响(果园土壤，庄稼土壤，森林土壤) 在中国武汉微生物引起的活动。试验性的结果表明由于土壤的不同物理、化学的特征，在三土壤的微生物引起的活动取样的土壤在一个下降序列：果园土壤，收割土壤，森林土壤。Pb viz 的六个层次。 0 ， 10 ， 20 ， 40 ， 80 ， 160 得到扑灭系数因为在 MeCN 和苯的不同使除去空气的极性答案的 astaxanthin (I)和 canthaxanthin ( II )被激光闪光光分解作用在 298 K 评估在光谱从由精力转移的 350～650 nm 的区域方法，作为 sensitizer 采用 2-acetonaphthone 。在 MeCN 和苯的三位字节三位字节扑灭系数以在场的类胡萝卜素是不同的。最大的三位字节三位字节扑灭 coeffici？

英文摘要：

Microcalorimetry was used to investigate the microbial activity in three types of soil （orchard soil, crop soil, forest soil） in Wuhan, China, and to evaluate the influence of different concentrations of lead （Pb^2＋） on soil microbial activity. The experimental results revealed that due to different physical and chemical characteristics of the soils, soil microbial activity in three soil samples were in a descending sequence： orchards soil, crops soil, forest soil. Six levels ofPb viz. 0, 10, 20, 40, 80, 160 μg·g^-1 were applied in these soils, and the results showed that an in- crease of the amount of Pb^2＋ is associated with a decrease in microbial activity in the soils due to the toxic effect of Pb^2＋. In order to gain further insight of the sequential change of microorganisms, determination of colony forming units （CFU） was performed to provide a negative linear correlation between the heat effect and the respective number of microorganisms in the system.