MICROBIAL ENZYME-ACTIVITIES RELATED TO LITTER DECOMPOSITION NEAR A HIGHWAY IN A SUBTROPICAL FOREST OF NORTH-EAST INDIA

Citation
Sr. Joshi et al., MICROBIAL ENZYME-ACTIVITIES RELATED TO LITTER DECOMPOSITION NEAR A HIGHWAY IN A SUBTROPICAL FOREST OF NORTH-EAST INDIA, Soil biology & biochemistry, 25(12), 1993, pp. 1763-1770
Citations number
34
Categorie Soggetti
Agriculture Soil Science
Journal title
ISSN journal
00380717
Volume
25
Issue
12
Year of publication
1993
Pages
1763 - 1770
Database
ISI
SICI code
0038-0717(1993)25:12<1763:MERTLD>2.0.ZU;2-J
Abstract
Cellulose, amylase and invertase activities were studied in extracts o f leaf litters of Alnus nepalensis and Pinus kesiya during litter deco mposition at a roadside (more polluted) and a non-roadside (less pollu ted) forest stand. Enzyme activities were considerably higher in litte r at the less polluted than at the more polluted site. Cellulase and a mylase activities showed a marked seasonal variation at both sites. Ce llulase and amylase activities increased during litter decomposition, whereas invertase activity was higher at the begining of litter decomp osition. Invertase activity correlated positively with litter soluble sugars. Cellulase and amylase activities, but not invertase activity, were correlated significantly with numbers of fungi and bacteria.