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Sankar Mariappan

Sankar Mariappan
Indian Institute of Soil and Water Conservation · ICAR

Doctor of Philosophy
Research and Development

About

26
Publications
21,102
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131
Citations
Citations since 2016
19 Research Items
116 Citations
2016201720182019202020212022010203040
2016201720182019202020212022010203040
2016201720182019202020212022010203040
2016201720182019202020212022010203040

Publications

Publications (26)
Article
It is essential to minimize soil quality degradation in sloping agricultural fields through stabilization and improvement of soil hydraulic properties using sustainable soil management. This study aimed to analyze the impact of different tillage practices, including conventional tillage (CT), minimum tillage (MT), and zero tillage (ZT), on soil hyd...
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The conservation and sustainability of natural resources , particularly soil and water, are crucial for agricultural yield and livelihood. Soil erosion models simulate the influence of existing farm management patterns as well as soil conservation interventions affecting soil erosion rates and accordingly recommend appropriate management techniques...
Article
Knowledge of temporal variation of soil hydraulic properties (SHPs) is crucial to understand soil physical behavior under different tillage practices. The objective of this study was to assess the variation of saturated and near‐saturated soil hydraulic conductivity (NSHC) and water‐conducting macroporosity (Ɛ) under long‐term (09 years) tillage re...
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The disturbances caused to forests by human interferences have a significant impact on forest hydrology and the nutrient cycle. The stemflow, throughfall, interception loss, and runoff are the major components of the forest hydrology and play an active role in nutrients cycling. A study was therefore carried out in the Sal forests under various dis...
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The extent to which soil erosion is a net source or sink of carbon globally remains unresolved but has the potential to play a key role in determining the magnitude of CO2 emissions from land-use change in rapidly eroding landscapes. The effects of soil erosion on carbon storage in low-input agricultural systems, in acknowledged global soil erosion...
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Indian farmers have innate knowledge and proficiency in organic farming as it istheir traditional way of agriculture. During the 1960s the demand for food production has increased and created much pressure on land and water resources. Out of a total reported geographical area of 329 Mha of India, about 146.8 Mha are degraded by various factors amon...
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The soil pore system is an important hydraulic property to understand the hydro-physical behavior of soil. The present study aimed to assess the impact of long-term tillage practices (CT - conventional tillage, MT - minimum tillage, and ZT - zero tillage) on flow weighted mean pore radius (r ), the number of pores (n ), and soil 0 0 pore-hydraulic...
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Tillage plays an important role in modifying soil hydraulic properties. The objective of the present study was to evaluate the effect of conservation tillage practices in a maize-wheat cropping system on nearsaturated soil hydraulic properties and pore characteristics in the North-West Himalayan region, India. Three treatments viz. conventional til...
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There are 17 nutrients established as essential for plant growth and higher yield, among those 6 nutrients viz., zinc, boron, iron, manganese, molybdenum and copper are required in small quantities and therefore called micronutrients. Though the requirement of micronutrient is less, their role in plants for the sustainable yield is very important....
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The economical stability and social sustainability of countries, worldwide, depend on their healthy and rich agricultural soils with supportive ecosystems. Agricultural soils have long been regarded merely as a means of holding up the plant and as a result, they have not always been managed properly to maintain and enhance their crop production cap...
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Soil degradation deteriorates soil health and has been considered as one of the major causes of human malnutrition (Lal, 2009). In combating malnutrition, presently adopted approaches like food fortification, mineral supplementation, food diversification and bio-fortification are not sufficient and call for additional and simultaneous soil bas...
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Cotton (Gossypium sp.) is a major crop grown under rainfed conditions in Vertisols and associated soils in semi-arid tropical (SAT) regions of Peninsular India. In recent years, cotton productivity has declined due to various biophysical factors including pest and diseases, seasonal water stress soil degradation and poor crop management practices....
Article
Soil cracks can enhance water recharge through preferential flow during the rainy season and enhanced evaporation loss during the post-rainy season. Despite their significance, a limited information is available on the management of surface cracks in Vertisols. The frequency, size, and rate of development of cracks greatly affect the movement of so...
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Worldwide, conservation agriculture practices involving minimal soil disturbances and retention of crop residue (>30%) have been practised increasingly and recognized to enhance soil health by optimizing key soil attributes. However, little information is available on the short‐term effects of conservation agriculture practices on soil properties u...
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Soil degradation induced by erosion represents a major threat to food production and ecosystem service globally, and in India more than 80 Mha have been impacted. In the light of the serious threat, there is a pressing need for a systematic nationwide assessment of land degradation due to erosion. We discuss the potential for using caesium-137 and...
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Land evaluation correlates soil survey information, climate, vegetation and other aspects of land with the specific use for which land is evaluated. In this process, the suitability of the land is assessed and classified. Shrinking land availability, increasing land degradation and expanding population necessitates the wise use of lands. Appraisal...
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The soil properties of the different land uses were studied in various landscape positions in lower Himalayan watershed of India. Soil properties such as bulk density showed lowest value in forest land use with mean value of 1.15 Mg m−3 Sand and silt contents were more in nalabed and agriculture-fallow land use, respectively in lower landscape, whe...
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Maintaining groundwater quality is the most critical issue in coastal region and it necessitates understanding of seawater intrusion and salinization process in this region for the wise management of groundwater…………………… Chemical composition of groundwater in coastal region differs broadly depending on diverse geo-hydrology, hydrometeorology, topogr...
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Soil resource of the coastal regions of Cuddalore district was studied to assess the productivity rating for the field, pasture and tree crops. The soil resource was inventoried using remote sensing approach. The IRS 1D PAN merged LISS III data at 1:50,000 scale was exploited for pre-field interpretation. The different image interpretation units (I...
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Abstract: Detailed soil survey (1: 5000 scale) of Kutturavupatti village (537ha) in Sivagangai district of Tamil Nadu was conducted during 2005-06 to delineate the area for agricultural suitability. Four soil series, namely, Sivagangai, Melapoongudi, Tamarakki and Keelapoongudi were identified. The soils of Sivagangai series had more than 70% gr...

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