The premier made the call yesterday when speaking with villagers of Namakuku village in Ruangwa District, Lindi Region soon after inspecting construction of water supply project which upon completion will be serving 1,468 people in the area.
The water project will be a big relief to the villagers particularly women and girls who spend much time as they wait for the precious liquid from a hand-pumped water facility in the area.
The premier was on end-year vacation yesterday. He started his three-day visit to inspect development projects in Ruangwa constituency.
"We have one task ahead, which is to ensure that this source of water is protected and the only way to protect it is through planting trees as many as possible," he said.
He added: "We should also ensure that no one is allowed to do farming activities within 100 meters."
The 181,8m/- project is being constructed by KALIF construction company and is expected to be completed by January 15, 2018.
The project whose construction started in July this year is being funded by the central government through National Water Investment Fund.
Meanwhile, the PM urged villagers in the village to make 50,000 bricks for the construction of the dispensary that will relief people from trekking long distances looking for health services.