Question

comparative study on strategies for water conservation between india and sri lanka

Answer 1

Answer:

Food production in Sri Lanka needs to increase to feed a growing population whereas water for irrigation is getting scarcer. Ma-jor challenges Sri Lanka facing today are to save water, increase food productivity and produce more grain with less water. This article analyzes and recommends the ways in which water saving irrigation management is to be practiced to meet these chal-lenges at the field level. The analyses were conducted using actual data collected mostly from Irrigation department and Agri-culture department in all the regional offices. Water input can be reduced by reducing ponded water depths to soil saturation or by alternate wetting/drying by following good water management tecneques. Water savings under saturated soil conditions were on average between 20 % and 25 % with yield reductions between 5 % and 8 %. Yields were reduced between 15 % and 45 % when soil water potentials in the root zone were allowed to reach minus 125 mbar to minus 250 mbar. In claye soils, intermit-tent drying may lead to shrinkage and cracking in the fields, thereby risking increased soil water loss, increased water require-ments and decreased water productivity. It therefore does not produce more rice with less water on the same field. Field-level water productivity and yield can only be increased concomitantly by improving total factor productivity or by raising the yield potential. Total rice production can be increased by using water saved in one location to irrigate new land in another location. If this is not done, as strategy of saving water at the field level, potentially threatens total rice production at large in Sri Lanka.

Explanation:

Answer 2

Answer:

Follow the answer below.

Explanation:

The difference between Sir Lanka and India is that India has got plenty of poorly managed water resource whereas Sir Lanka has little of water but manage it to increase their productivity .

India experiences plenty of Rainfall while Sir Lanka doesn't.

The reason why sir Lanka has managed to optimize its use of water is because of agricultural productivity , which is an important aspect of food security.

Due to the poor planning of Indian water resource , it has led to economic strains that result from environmental management issues.

N/b :water is very crucial for development of a country especially for its economic health.