What part of the enviornment manmade make up watersheds?
Watersheds are natural geographical features that are defined by the terrain and hydrological characteristics of a particular area. However, manmade structures and activities can also influence and impact watersheds.
To identify the parts of the environment that are manmade and contribute to watersheds, you will need to consider human interventions and modifications to the natural landscape. Here are some examples:
1. Urban areas: The expansion of cities and towns often involves clearing land, altering the natural topography, and constructing buildings, roads, and other infrastructure. These changes can influence the flow of water and affect the drainage patterns within a watershed.
2. Industrial activities: Factories, power plants, and other industrial facilities can contribute to watersheds through mechanisms such as wastewater discharge. These sources may introduce pollutants, chemicals, or excess heat into the water, impacting the ecology of the watershed.
3. Agricultural practices: Certain agricultural activities can affect watersheds. For instance, excessive use of fertilizers, pesticides, and irrigation can lead to runoff, which can introduce pollutants and impact water quality.
4. Dams and reservoirs: Manmade structures, such as dams and reservoirs, alter the natural flow of water in a watershed. These structures are designed to control water storage, release, and flow, affecting downstream areas and the overall hydrological balance.
5. Channelization and drainage systems: In some cases, waterways or natural drainage systems are modified for flood control, irrigation, or navigation purposes. These canalization or drainage projects can change the natural course of water, altering the watershed characteristics.
To understand the specific manmade contributions in a given watershed, it's essential to conduct research or consult local authorities, water management organizations, or environmental agencies in the area of interest.