P. Abirami, G. Anbalagan, B. Rajeswari, M. Ranjithkumar, and E. Dharmaraj, from the different institute of India. wrote a Research Article about, Physico-Chemical Analysis of Lake Soil for Environmental Management. entitled, A physico-chemical characteristic of soil samples for an environmental management study at lake ecosystem. This research paper published by the Journal of Biodiversity and Environmental Sciences (JBES). an open access scholarly research journal on Biodiversity. under the affiliation of the International Network For Natural Sciences| INNSpub. an open access multidisciplinary research journal publisher.
Abstract
The study area chosen for this investigation of soil quality was Samuthram lake, Thanjavur district to find out the impact of sewage wastes, open defecation, agricultural run-off etc., The pH of the sites was ranged from 8.1 – 8.4. The soil samples are alkaline in all the sites. TOC is important because it improves both the physical and chemical properties of soil and has several beneficial effects on agricultural soil quality. The percentage of total organic matter was ranged from 1.3 to 9.1. The nitrogen level of the study sites was ranged from 0.02% to a maximum of 0.14%. The phosphorous levels of the sites ranged from 0.01% to 0.08%. Phosphates are not toxic to people or animals unless they are present in very high levels. The result shows that the potassium levels ranges from a minimum of 0.02 – 0.04%. The above study indicates that pH and alkalinity of the soil samples are well above the safe limit. Other parameters are not more. In case of Agricultural run-off, open defecation, untreated sewage water may cause serious problem in future. So, there is an urgent management activity to protect this natural ecosystem.
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Introduction
Thanjavur being the
foremost district of the Cauvery delta occupies an important position in the
agricultural map of Tamil Nadu state. Since its formation, the district is called
as the rice bowl of Tamil Nadu. Samuthram lake was one of the most important
irrigation and biologically significant lake at Thanjavur district. Samuthram
Lake is located about 7 Km to the East of Thanjavur town on the Thanjavur
Nagapattinam, Velangkanni Road (Fig. 1 & 2). The study area is bounded by
STP in the West and Amman temple in the East. It has good network of roads and
the Lord Siva Temple is situated at the central part of the lake is now removed
by government authorities. The North west bank of the lake affected by high
degree of anthropogenic activities like open defecation, ground drainage mixing
etc., Lakes are not only the most important water resources in arid Central
Asia, but also important resources for maintaining the unique ecosystem of the
region (Huang, 2022). The selected area for the present work has not been
studied so far, although such studies have been extensively carried out on
other lakes of Thanjavur but not in our study area. The main objectives of the
study is analyse the soil samples to evaluate any contamination will occur due
to cloth washing, agriculture run off etc. The sample was collected during
summer season. This work is carried out to find out the impact of sewage
wastes, anthropogenic activities on soil quality.
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