Soil Organic Carbon (SOC) regulation by anthropogenic activities and natural factors

Pritam Mukherjee, Madhumita Roy and Abhijit Mitra; JECET; December 2017- February 2018; Sec. A; Vol.7. No.1, 103-110.; [DOI: 10.24214/jecet.A.7.1.10310]

Abstract

The present study has illustrated the estimation of the Soil Organic Carbon (SOC) distribution keeping in view the variation of environment. Hence two significantly contrasting environments were selected to evaluate the role of anthropogenic/natural factors on the SOC budget. The regions selected as experimental beds for the present study are highly urbanized city of Kolkata and natural mangrove ecosystem of Sundarbans. 6 stations in each of these two regions were selected during January 2018. We observed relatively higher value of SOC at Kolkata (mean value = 1.95%) compared to mangrove dominated Indian Sundarbans (mean value = 1.37%). The relatively higher values in the city soil may be due to the impact of domestic and municipal waste generation and dumping by the heavily crowded population of the city. The lower value of SOC in Sundarbans may be attributed to the tidal washing of the top soil at regular intervals of time. Erosion of embankments is also a cause of low SOC value in Sundarban region.

Local Ecological Knowledge (LEK) Surveys to find the spatial distribution of Malabar Pied Hornbill (Anthracoceros coronatus) and their familiarity in the Western Ghats region of Karnataka

Shrinivas K.R. and Vijaya Kumara, JECET; December 2017- February 2018; Sec. A; Vol.7. No.1, 097-102.[DOI: 10.24214/jecet.A.7.1. 09702]

Abstract

Malabar Pied hornbill (MPH) being one of the flagship species in the Western Ghats is considered as Near Threatened (NT) and the population is in decreasing trend according to the IUCN Redlist Data. Local Ecological Knowledge (LEK) surveys were conducted in the Western Ghats region of Karnataka state mainly to know the basic knowledge of Hornbill and their co-existence. The questionnaire also aimed to account for the presence and absence of Hornbill species. MPHs are found sparsely in these areas but the Malabar Grey hornbill was in prevalent in all areas. Out of 726 interviews and interactions been made during July 2014 to June 2017, more than 75% of the respondents were farmers or farm labors, nearly 22% were forest personnel and remaining were either business men or resource persons like school masters, postmen, etc. People who knew the unique breeding behavior of hornbills never entertained or encouraged hunting. During the LEK survey an attemp was made to bring about the conservation issues with the people. MPHs were well distributed in the areas with riverine conditions and desirable altitude holding favourable conditions. Forest fires and predation has been the mainreason for their population decline according to the resources. The roosting sites have shown considerable decline in the population of the hornbills and also the roosting place has been kept on changing due to many anthropogenic threats. An immediate action like capacity building is required to control the declining population.

Evaluation and Assessment of Water Quality along Thamirabarani River in Kanniyakumari District, Tamil Nadu, India

Ponmurugaraj.N, Ramalingam Pillai.A and Vaithyanathan.C, JECET; December 2017- February 2018; Sec. A; Vol.7. No.1, 089-096.[DOI: 10.24214/jecet.A.7.1.08996]

Abstract

The present study deals with the analysis and assessment of water quality of Thamirabarani River based on the local utility of the riverine system ten locations were selected for the evaluation. The physico chemical parameters were analyzed during January 2011-December 2011. Seasonal variation at selected ten different sample sites was recorded. The result revealed the quality of river water during different seasons.

A study on Restoration of Rural Tanks for sustainable Rural Development in Cuddalore District

M. Karthi and Dr.P. Balamurugan,JECET; December 2017- February 2018; Sec. A; Vol.7. No.1, 080-088.,[DOI: 10.24214/jecet.A.7.1.08088.]

Abstract

The water source for rural livelihood is rural tanks. These are an important source for traditional culture and economic well-being. These are help to farming activities, livestock breeding, drinking water, environmental protection, and small business development. This research has been done in Keerapalaiyam block of cuddalore district. Two select tank villages have been selected in the block for present analysis. The study aims at present conditions of the tanks and problems of restoration in rural tanks for sustainable rural development. In these two villages, a total of 120 samples have been collected for research. This research concludes that the rural tanks are not depending on the groundwater resources; they are only dependent on the rain water, so that can be assured that sustainable rural development can be achieved through the restoration of rural tanks.

Sedimentary Dynamics of the Coastline of the Vridi Canal in Port-Bouët, Abidjan (Côte D’ivoire)

Dynamique sédimentaire du trait de côte du canal de Vridi à Port-Bouët, Abidjan (Côte d’Ivoire)

N’guessan Yao Alexis, Diangoné Eric, Konan Konan Ernest, Sékongo René, Wognin Valérie,JECET; December 2017- February 2018; Sec. A; Vol.7. No.1, 070-079,DOI: 10.24214/jecet.A.7.1.07079.]

Abstract

Of all the ills that undermine our environment, coastal erosion deserves special consideration on our part. The Ivorian coastline and in particular the coastline of the Vridi Canal at the Port-Bouët Lighthouse is not immune to this phenomenon. This study places particular emphasis on the issue of updating the data of the evolutionary trend of the Vridi-Port-Bouët perimeter because of the dynamism of the area, by the joint analysis of the morphological characteristics of the beach and the dynamics of the area next to. Examination of superficial facies and sub-surfaces has shown that these granulometric facies can be a witness of coastal erosion. Thus, 36 sediment samples from three sampling sites (Capko, Bidet and Phare) showed that the sands of this area are very coarse to coarse, well classified with a variable Skewness. They present a variation of the grain size of the surface (00 cm) towards the depth (200 cm) testifying to the evolution of the coastline.

Résumé: De tous les maux qui minent notre environnement, l’érosion côtière mérite un examen particulier de notre part. Le littoral ivoirien et en particulier le cordon littoral du Canal de Vridi au Phare de Port-Bouët n’échappe pas à ce phénomène. Cette étude met particulièrement l’accent sur la problématique de l’actualisation des données de la tendance évolutive du périmètre Vridi-Port-Bouët à cause du dynamisme de la zone, par l’analyse conjointe des caractéristiques morphologiques de la plage et la dynamique trait de côte. L’examen des faciès superficiels et de sub-surfaces a permis de montrer que ces faciès granulométriques peuvent être témoin de l’érosion côtière. Ainsi 36 échantillons de sédiments issus de trois sites d’échantillonnage (Capko, Bidet et Phare) ont montré que les sables de ce secteur sont très grossiers à grossiers, bien classés avec un Skewness variable. Ils présentent une variation de la taille des grains de la surface (00 cm) vers la profondeur (200 cm) témoignant de l’évolution du trait de côte.