koombum polayum

prathyekichum nyoosilandinte padinjaaran theerathu uthppaadanakshamatha mechappeduthunnathinulla mechilppurangal contouring cheiyunna oru saankethikavidyayaanu koombum pollalum, idaykkide "flipping" ennu vilikkunnu.
peett mannilum uyarnna mazhayulla pradeshangalilum upayogikkunna eee saankethikavidya vegathil jalapravaham anuvadikkukayum jalanirapp kuraykkukayum cheiyunnu. 
vaarshika mazha 3000 millimeter varunna nyoosilandinte padinjaaran theerathulla kauhithiraamgiyil nadanna moonnu varshathe pareekshanatthil, drainage illaathathine apekshichu 14 sathamaanam mechappettu. 
padinjaaran theerathu koombum pollalum kooduthalaayi upayogikkunnu, jalathinte gunanilavaaratthe badhikkunna prathyaaghaathangalekkurich aashanka uyarnnittund. manninte ghadana, vrishtipradesha jalashasthram, aavaasavyavasthayile mattangal ennivayilum swaadheenam cheluthunnu.

