Put into consideration a small stream located at the top of the mountains. Te watershed of this particular stream will comprise of few underground precipitation runoffs and springs coming from the lands that are above it. Hnce the stream continues to flow down the hill; i flows to large water bodies including larger rivers, sreams and even lakes before flowing into the oceans which accordingly have watersheds that are large. Hwever, i is important to note that all watersheds both large and small have complex processes that in or the other impact on the quality of water coming out and utilized by the human population for various purposes.
Acording to Sivapalan (2266) human beings does not only use water for the cleaning and cooking but also for drinking, ceaning and draining the waste systems. I order to achieve this treatment plants, dms and pipes have to be put into place for the purposes of treating water before and after it enters the homes of individuals in the society. Additionally, oher structures should be put in place for of transporting water.
Tis is because in order for human beings to be free from infections, t be water too need free from all forms of pollution and safe for domestic use. Tis explains the importance of managing all the watersheds as they are the sources of water for human and animal populations. Acording Sivapalan (2268) most cities and towns have put in place plans for managing the watersheds with an aim of ensuring not only quantity but also quality of the water sources. Mreover, i is important take that as watersheds continue to develop; sorm water continues to drain from areas such as buildings, prking lots, felds and even fields.
Hnce, te roadside ditches are designed in a particular manner to prevent the structures from flooding by ensuring increased flow of the run off waters. Nnetheless, efects of both quality and quantity of water in lakes and streams are not put into consideration in the process of designing, bilding and maintaining the ditches. Wthin the watershed there are various types of matter including water which usually in flow.
Hwever, i similar environment there is air, wter and soil which support lives of human population. Te physical aspect of the watershed includes hydrologic, gomorphic and climatic. ..
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