Soil enzyme activities in dependence on tree litter and season of a social forest, Burdwan, India

Abstract

The study was done to evaluate enzyme activities (amylase, cellulase and invertase) from the soils of different vegetation sites, with seasonal variation, of social forest, Burdwan, India. Study results showed significant lower enzymatic activities in the subsoil compared to those of the topsoil. The seasonal variations indicated that amylase, cellulase and invertase enzyme activities had reached peaks during the rainy seasons in different soil depths. Amylase activity was highest in Tectona litter containing soil in all seasons in both the soil layers. All the three enzyme activities have shown significant positive correlation with available nitrogen (p < 0.05) and available phosphorous (p < 0.05) during rainy season in both the soil depths. Correlation study revealed that soil organic carbon was positively correlated with cellulase and invertase activities except in the Anacardium vegetation site in the topsoil during rainy season. Irrespective of the seasons and the depths of soil, control site without vegetation showed much lower levels of organic carbon and enzyme activity compared to those of the experimental sites. Therefore, it is concluded that carbon transformation will be higher during rainy season in the vegetation sites of forest soil under such agroclimatic conditions.

The Influence of Soil Physico-Chemical Properties and Enzyme Activities on Soil Quality of Saline-Alkali Agroecosystems in Western Jilin Province, China

“…In this study, enzyme activities (except for polyphenol oxidase) decreased with soil depth and the findings are similar to Lemanowicz and Krzyżaniak [54], Biró et al [55] and Das et al [56]. No consistent temporal trends were observed among soil enzyme activities, however, at the second crop growing stage, i.e., in July (summer in study area), most soil enzymes appeared higher activities, probably because soil enzyme activities increase with the rise of soil temperature [57].…”

Soil enzyme activity under arsenic-stressed area of Purbasthali, West Bengal, India

“…The activities of the soil enzymes urease, amylase, and invertase did not vary significantly (p > 0.05) from season to season but the seasonal variation of cellulase activity was significant (p < 0.01). Similar higher level of cellulase activity during rainy season was reported by Das et al (2014). The seasonal variation results revealed that amylase activity in the As-contaminated area was significantly (p < 0.000) different from that of the control area during pre-monsoon period.…”

“…This is probably due to the different availability of nutrient is different in different soils (Olander & Vitousek 2000;Treseder & Vitousek 2001). Moreover, nitrogen potentially alter soil organic matter, therefore, it may have indirect effects on soil enzyme activities (Cusack 2013;Das et al 2014). The dendrogram study revealed that As formed cluster with cellulase activity, but the other three enzymes activities do not form such cluster with As.…”

“…Groundwater contaminated with As is frequently used for irrigation and this makes it possible for As to enter the human food chain through locally grown food crops and vegetables (Das et al 2014). Soil acts as a principal sink of As along with contaminated groundwater.…”

Effects of Leaf Extract of Lantana camara on Germination and Growth Behavior of Selected Tree Species

“…T 4 treatments showed substantially lower vigor index in Dalbergia sissoo (0.075) than Albizia lebbeck (1.39). Das et al, (2012) reported that with the increasing the concentration of leachate of Shorea robusta, the vigour index of the Cicer aretinum decreased. The vigour index of all the four seedlings may be due to reduced seed germination and shoot length, as vigour index is the product of germination and seedling growth.…”