Shameem S.A.,SKUAST Kashmir |
Shameem S.A.,Forest Research Institute University |
Soni P.,Forest Research Institute University |
Bhat G.A.,University Of Kashmir
Asian Journal of Plant Sciences | Year: 2010
The present study was conducted to estimate the variation in herbaceous community features in terms of diversity, species richness and distribution pattern in the two different ecosystems i.e., site I (pastureland) and site II (forest) in the lower Dachigam National Park of Kashmir, Himalaya. The pasture site is located outside the National Park and is under grazing were as forest site is located inside the National Park and is protected. The study was done on seasonal basis and the results revealed higher trend for diversity(H') at both sites during summer season (site I = 3.03, site II =2.92). However, dominance index was inversely related to diversity index(H') (site I = 0.06 and site JJ = 0.07). Richness index showed maximum value in spring (4.12, site II) and summer (3.70, site I). Equability or evenness index obtained higher value in summer (0.94, site I) and winter (0.96, site II). Comparatively on an average site II showed higher trend in Shannon diversity (site I = 2.435, site II = 2.655), richness index (site I = 2.652, site II = 3.297) and equability index (site I = 0.852, site II = 0.915). The frequently occurred dominant species during prominent season based on IVT at site I were Cynodon dactylon, Salvia moorcroftiana and Thymus serphyllum at site II were Arthraxon prinoides, Fragaria nubicola, Poa annua, Poa sp. and Viola indica. The abundance to frequency ratio (A/F) indicated most of the species performed contiguous pattern of distribution. A seasonal picture depicted contagious> random distribution pattern while regular distribution was reported almost negligible. The study concluded that seasons have great influence on species diversity. During spring and summer season an increase in species diversity was observed which declined as autumn and winter approached mainly due to dry environmental conditions, slow growth rate and other climatic factors. © 2010 Asian Network for Scientific Information.
Rastogi A.,McGill University |
Rastogi A.,Forest Research Institute University |
Badola R.,Wildlife Institute of India |
Hussain S.A.,Wildlife Institute of India |
Hickey G.M.,McGill University
Biological Conservation | Year: 2010
This study tests the potential utility of Stakeholder Analysis to Protected Area management. Using Corbett National Park (CNP), India, as a case study, Stakeholder Analysis (SA) was used to identify important stakeholder groups and assess their relationships, relative power and importance. This exercise was undertaken to assist the managers of CNP with future strategy formulation and implementation. The results demonstrate SA to be a simple, yet effective, method that can help PA managers understand the social dimensions of their undertaking, without waiting for long-term policy changes. The results reveal possible stakeholder alliances, and those that may need strengthening to guarantee the welfare of CNP. Divergent opinions on the same issue were also discovered. This underlines that addressing low levels of knowledge and misplaced information may be of strategic importance in reducing conflict against a PA. This research also helps theorize previously unexplored relationships among stakeholders in India, using the framework of Stakeholder Theory. Repeating the exercise on a regular basis could help PA managers monitor stakeholder interactions and political positions over time. © Elsevier Ltd.
Saini V.K.,Forest Research Institute University |
Naithani S.,Forest Research Institute University |
Thapliyal B.P.,Central Pulp and Paper Research Institute |
Gupta R.,Hemwati Nandan Bahuguna Garhwal University
International Journal of ChemTech Research | Year: 2011
Global concerns about elimination of pollution from pulp and paper mills, has lead us to explore alternative processes for better delignification. In an attempt to address this issue rate of delignification was increased by applying Trametes versicolor in destructured samples of Dendrocalamus stictus, which was destructured by Impressafiner (compression-cum dewatering processes). The extent of delignification was determined and compared between the nondestructured and destruc ured samples. It was found that rate of delignification was significantly distinct between the two samples. In Dendrocalamus strictus, fungi Trametes versicolor shows 15.02% and 22.14% lignin loss in nondestructured and destructured samples respectively with in 21 days. The influence of physical parameters like pH, temperature, media concentration, moisture and incubation time were also examined during the study. It was found that in Dendrocalamus strictus lignin degradation by Trametes versicolor in destructured sample was approximately 7.12% more than in non-destructured. Scanning Electron Microscopy (SEM) was used to investigate the growth of bamboo colonizing and decay fungi into the tissue structure. Kraft pulping of destructured treated sample shows 5 point reduction in kappa no. than untreated non destructured sample. Thus this paper provides an insight of the delignification extent in Dendrocalamus strictus after mechanical operation at varying physical parameters.
Jamir C.,Forest Research Institute University |
Sharma N.,Indian Institute of Science |
Sengupta A.,Indian Institute of Science |
Ravindranath N.H.,Indian Institute of Science
Regional Environmental Change | Year: 2013
Certain parts of the State of Nagaland situated in the northeastern region of India have been experiencing rainfall deficit over the past few years leading to severe drought-like conditions, which is likely to be aggravated under a climate change scenario. The state has already incurred considerable losses in the agricultural sector. Regional vulnerability assessments need to be carried out in order to help policy makers and planners formulate and implement effective drought management strategies. The present study uses an 'index-based approach' to quantify the climate variability-induced vulnerability of farmers in five villages of Dimapur district, Nagaland. Indicators, which are reflective of the exposure, sensitivity and adaptive capacity of the farmers to drought, were quantified on the basis of primary data generated through household surveys and participatory rural appraisal supplemented by secondary data in order to calculate a composite vulnerability index. The composite vulnerability index of village New Showba was found to be the least, while Zutovi, the highest. The overall results reveal that biophysical characteristics contribute the most to overall vulnerability. Some potential adaptation strategies were also identified based on observations and discussions with the villagers. © 2012 Springer-Verlag.