Human Impacts on the

Hydological Cycle

Presented By:Maria Elsa F. Gestoso

Objectives:Define Hydrological Cycle

Overview of World’s Water

Going Over the Cycle’s Phases

Human Impacts on the Hydrological Cycle

What is Hydrological

Cycle?It is a sequence of conditions

through which water passes or circulates on and below the

earth’s surface and the atmosphere. It is commonly known as the Water Cycle.

In simplier term. . .

Water Cycle is the nature’s way of

recycling water on Earth!

IMAGINE? Only 3% of the worlds water is safe for human consumption.

Let’s take a look at this. . .

The Hydrological

Cycle

.

.

.

..

.

.

.

.

Transpiration

EvaporationCondensation

Precipitation

evaporation of

water from

leaves of

plants and its

corresponding

uptake from

roots in the

soil.

Process in which

liquid changes to gas.

Process

by which

matter

changes

from gas

phase

into a

liquid

phase.

When cloud particles become too heavy to remain suspended in the air, they fall to the Earth.

Human Activities that impacts the water cycle:

Vast usage of chemicals, pesticides, fertilizers and other forms of

pollutions can cause Eutrophication.

What is Eutrophication?

Eutrophication is a process in which bodies of water (lakes, ponds,

and rivers) receive excess nutrients that stimulate excessive

growth of algae. 

Video

Algal Bloom results to this:

Another Human activity leads to this. .

Manila Bay for example has become

a huge floating dump in Metro

Manila.

Human activities like usage of chemicals,

pesticides and dumping wastes in the bodies of water can lead to total

Hydrological Cycle Destruction. .

THANK YOU! Let’s all be a catalyst of

change!