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Revitalization of Rivers in India Draft Policy - Isha Guru Jaggi Vasudev

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<strong>Revitalization</strong> <strong>of</strong> <strong>Rivers</strong> In <strong>India</strong><br />

<strong>Draft</strong> <strong>Policy</strong> Recommendation<br />

soil biological and chemical properties <strong>of</strong> a ra<strong>in</strong>fed Vertisol <strong>in</strong> the semiarid tropical<br />

environment <strong>in</strong> southern <strong>India</strong>. Yields were comparable to the conventional system<br />

<strong>of</strong> crop production that used standard agrochemical <strong>in</strong>puts. In crop husbandry<br />

systems receiv<strong>in</strong>g only biological <strong>in</strong>puts, depend<strong>in</strong>g on the crops grown that year,<br />

stover yield rang<strong>in</strong>g from 6.6 to 11.6 t/ha and gra<strong>in</strong> yield rang<strong>in</strong>g from 4 to 5.9 t/ha<br />

was harvested annually when there was > 627 mm <strong>of</strong> ra<strong>in</strong>fall (Rupela, 2006).<br />

An <strong>in</strong>vestigation on changes <strong>in</strong> soil organic carbon (SOC) under conservation<br />

agriculture (CA), after seven years <strong>of</strong> rice–wheat rotations <strong>in</strong> the eastern Indo-<br />

Gangetic Pla<strong>in</strong>s (IGP) <strong>of</strong> <strong>India</strong>, revealed that both zero tillage and permanent<br />

raised bed crop establishment methods which reta<strong>in</strong>ed the crop residue <strong>in</strong> the<br />

soil <strong>in</strong>creased SOC at 0–0.6 m depth by 4.7 and 3.0 t C/ha, respectively, whereas<br />

the conventional transplanted rice followed by conventional tillage wheat system<br />

resulted <strong>in</strong> a decrease <strong>in</strong> SOC <strong>of</strong> 0.9 t C/ha (Sapkota et.al., 2017).<br />

Higher SOC concentrations <strong>in</strong> surface soils under zero tillage compared<br />

to conventional tillage system have been attributed to less disruption <strong>of</strong><br />

macroaggregates that protected SOC aga<strong>in</strong>st oxidation.<br />

4.4.5. PARTICIPATORY RESOURCE CONSERVATION AND MANAGEMENT<br />

A case study <strong>in</strong> Netranahalli Watershed (Karnataka) <strong>in</strong> southern pen<strong>in</strong>sular <strong>India</strong><br />

stressed the importance <strong>of</strong> <strong>in</strong>volvement <strong>of</strong> communities for conservation <strong>of</strong><br />

natural resources (ma<strong>in</strong>ly soil and water) and their management. Improvement<br />

<strong>in</strong> groundwater levels, soil and moisture conservation, development <strong>of</strong> irrigation<br />

facilities, water regeneration capacity, forestry and horticulture development,<br />

change <strong>in</strong> land use pattern and cropp<strong>in</strong>g pattern, improvement <strong>in</strong> animal health,<br />

employment, and <strong>in</strong>come generation were noticed by Adhikari et al. [2013].<br />

5. A REVIEW ON THE MAIN CAUSES OF SOIL DEGRADATION,<br />

Research results document<strong>in</strong>g both soil on degradation and soil health<br />

improvement <strong>in</strong> various agricultural systems and potential solutions to<br />

improve soil health <strong>in</strong> different regions <strong>in</strong> <strong>India</strong>, leads to the follow<strong>in</strong>g<br />

(Bhattacharyya et.al., 2015):<br />

438 Annexures

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