pits drop world crops ponds roads planet nature vision runoff streams reality erosion habitat sponges wildlife rooftops Wetlands lifeblood riverbanks commitment pollutants open spaces communities groundwater biodiversity water wastage water quality storage tanks allegianceindia drip irrigation positive impact proper treatment Riparian Buffers powerful concept Pond Rejuvenation water stewardship sprinkler systems native vegetation mere conservation local water bodies Wetland Restoration Rainwater Harvesting Community Engagement ecological functions Efficient Irrigation Allegiance Enterprise Allegiance Water Management Water Positive Water Positive