It' mother nature and weather patern. Some year too much rain some no rain at all. you could have a billions trees but if this kind of mother nature nothing can stop it...
It's due to the seasonal moonsoon. It's more damaging to Thailand this year, but it's may be as bad in Laos in the future. No one can predict for sure.
Khon soua man kor tham tea khouam soua nan la. khon phuak nee bor dee man pha ya yam hed jai Laos - Thailand phitd kan, man jing tang kham tham baab nee.
Unpredictable from Mother Nature, hope next time can have a better prepare and handling these type of situation, do best for whom is facing the problem. Soon, you all should be fine.
That's is a Creator nature of Universe and earth with water he teaches his people to know the truth and to live harmony with his phisical and spiritual laws.