मृदा स्‍वास्‍थय Tag

 मृदा खराब होने की अवस्‍था को धीमा करने तथा पलटनेे की रणनीति‍यॉं:  एग्रोफोरेस्ट्री की भूमिका Soil degradation implies decline in the quality and capacity of soil through natural or anthropogenic perturbations. Degradation processes include erosion, compaction and hard setting, acidification, declining soil organic matter (SOM), soil fertility depletion, biological degradation, and soil pollution. Soils are the basis for more than 90% of worldwide food production. However, about 25% of the world’s arable land is degraded. Without fertile soils, world food security is at risk. Very limited degree of agriculturally usable soil (about 12% of the total land area) is available on the earth’s surface. The degraded soils cannot be restored within a human generation....