Biomediated transformations in forest floor of Jammu region

Simple item page
dc.contributor.advisorSharma, Vikas
dc.contributor.authorkUMAR Arora, Rohit
dc.date.accessioned2021-02-08T06:49:23Z
dc.date.available2021-02-08T06:49:23Z
dc.date.issued2020-12
dc.description.abstractA study was carried out in the Jammu division of Jammu and Kashmir to understand and assess the change that occur in soil health of forest floors upon deforestation. A comparison was made among the forest floor soils and deforested soils to assess this change. Soil samples were collected from both forest floors and deforested soils in six areas of Jammu division covering different forest types and climatic zones. Bulk density varied from1.55 to 1.67 g cm-3 in deforested soils irrespective of soil depth. Soil texture under forest were finer as compared to deforested soils in general as is evident from higher clay content in forest soils. Soil pH was acidic under vegetation irrespective of whether the vegetation was in sub-tropical or temperate zone. Forest soils contain higher mean values of organic carbon content than deforested soils at all locations and it varied from 0.55 to 1.31% in forest soils whereas it varied from 0.43 to 0.72 % under deforested soils. Cation exchange capacity (CEC) followed the similar pattern to that of organic carbon. The mean values of mineral nitrogen content did not vary among forest and deforested soils. Phosphorus, potassium, DTPA-Fe and exchangeable aluminium had higher values in forest soils in comparison to deforested soils. Higher mean values of microbial biomass carbon were recorded under forest soils in comparison to deforested soils at all the locations and it varied from 70.45 to 113.12 μg g-1 in forest soils whereas it varied from 26.19 to 65.51 μg g-1 in deforested soils irrespective of soil depth. Similar trend was observed for microbial biomass N and P. Highest Urease content was recorded in Bhaderwah in forest as well as deforested soils, the values being 10.19 and 5.60 µg of NH4+ N released/g of soil, respectively whereas Samba soils had lowest mean value of Urease under forest as well as deforested lands. Acid phosphatase content followed the trend of Urease and it decreased due to deforestation at all locations. Highest Sulphatase content in forest and deforested soils was 76.95 and 42.26 µg of p-nitrophenol released/g of soil, respectively. Highest cellulase was recorded in Bhaderwah in forest as well as deforested soils with, the values were 347.26 and 190.78 µg of glucose released/g of soil, respectively. 16srRNA phylogenetic analysis revealed that, the most dominant Phylum was Proteobacteria, followed by Firmicutes, Actinobacteria, Chloroflexi and so on in the soils under study. Dominant bacterial genera in order of relative abundance were Bacillus, CandidatusSolibacter, Clostridium, Anaerolinea, and so on in deforested lands. Top phyla under fungi were Ascomycata, Basidiomycota and Chytridiomycota. It can be concluded from the study that deforestation had a negative effect on soil health irrespective of forest types and climate zones. Removal of vegetation can significantly degrade soil health as is evident from decrease in soil nutrient content and reduced biological activity.en_US
dc.identifier.citationpreferred for your work. Arora RohitBiomediated Transformations in Forest Floor of Jammu Region Specify Series/Report No. From your Division/Faculty of your Thesis/ Dissertation.J-12-D-164-Aen_US
dc.identifier.other36620
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810160968
dc.keywordsFOREST SOILS, DEFORESTED SOILS, NUTRIENT STATUS, ENZYMATIC ACTIVITY, SOIL CARBONen_US
dc.language.isoEnglishen_US
dc.pages118en_US
dc.publisherSher-e-Kashmir University of Agricultural Sciences and Technology Jammu, J&Ken_US
dc.subSoil Science and Agriculture Chemistryen_US
dc.themeBiomediated transformations in forest floor of Jammu regionen_US
dc.these.typePh.Den_US
dc.titleBiomediated transformations in forest floor of Jammu regionen_US
dc.typeThesisen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
36620 Rohit kumar Arora J12D164A THESIS PhD.pdf
Size:
3.13 MB
Format:
Adobe Portable Document Format
Description:
Biomediated transformations in forest floor of Jammu region
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Theses