Showing posts with label Features. Show all posts
Showing posts with label Features. Show all posts

Tuesday, October 9, 2012

Features Of Landscape

The term landscape refers to the study of Landscape unaffected features of an area of land equal as the type of landforms, genuineness water nationality agnate as rivers, lakes and the sea, existence of living elements of land cover, topography and the quality and type of flowering. The study also involves the weather changes in a particular environment.

Topography influences human life in incomparable ways. Its effects on farming and transportation are pronounced. The exact topography of the plains puts little constrains on the development of agriculture and the network of transportation. But in certain highlands ruggedness of topography makes development of farming and transportation difficult. In the areas which are not rugged, agriculture is confined to the narrow river valleys.

The study of climate is classified as dry climate and Highland climate. Dry climate is the characteristic feature of the climate in which potential evaporation exceeds precipitation. It is subdivided as Arid or desert which is in the case when potential evaporation exceeds precipitation by more than two times, and semi arid or steepe is the case when potential evapo transpiration exceeds precipitation but is not twice as great. The two subgroups are further divided into two climatic types on the basis of temperature. Areas where the temperature of the coolest month is 10 or less are classified as Kalt and those with more than ten as Heiss.

Soil gives support to the plants and act as an agent supplying wholly or in part nutrients, water, air and heat. Now we see that what the factors that affect the soil formation are. These include climate9temperature and precipitation ), vegetation and living organisms, parent material, topography and time. The role of climate is that in sub humid regions the quality of soil is good but in the areas of ice there is no soil. Alluvium, loessa, wind reworked sands act as parent materials. With regard to topography the areas of different areas develop different soils. Soil formation is a complex phenomenon and requires considerable time. The conversion of the bedrocks into regolith is a time consuming process. Soil erosion is a menace which destroys the soils. It is unfortunate that the problem of soil erosion has not roused much public and government attention. Water and wind are the two main agents of erosion in Pakistan. Soil erosion has been further accelerated by landslides and soil creep and by the cutting of the forest, overgrazing and poor management of the farmlands. It must be noted that wind and water erosion both work together particularly in the desert and the semi - desert areas.

Wednesday, September 12, 2012

Usage and Features of Water Pumps

A pump is a machine or device that can be used for raising, compressing, or transferring fluids. There are various types of pumps allied as gear pumps, peristaltic pumps, importance pumps, and impulse pumps, etc. All of them are entirely useful in industries. But in our daily life, there is a very commonly used clutch of pump which is called water pump.

Water pump is an important tool for a incongruity of residential, light call or agricultural tasks. Especially in the rural areas, it can play a very important role. Water pump can remove water from a basement or equivalent from shallow flooded areas. It can also drain and fill the swimming pool and pond. Besides, it can be applied to meet irrigation requirements for agriculture. It can also be used in the construction. All in all, it has various usages.

There are also many types of water pumps, and each of them can serve a special purpose in a home or business. Although most of water pumps have similar performances and functions, you should still have to consider different aspects to choose the appropriate products for your own. For example, if you want to drain your hot tub or garden pond, you can choose transfer pumps which are made for clear water pumping and should be free of debris. In addition, they can also be used to drain shallow flooded areas and for lawn sprinkling. But if you want to buy a suitable pump for agricultural usage, you should choose high - pressure pumps which are designed to provide higher pressure at lower volumes because they can move water over long distances.

Additionally, you should take many other features into consideration when you purchase the water pump. The good and suitable pump products can enable you to get easy starts, more effective cleaning, and longer life. For heavy - duty water transfer or cleanup projects, you can look for engines with an OHV design which delivers a cooler, cleaner and more fuel - efficient engine. Ceramic mechanical seals can provide long - life performance. And lightweight aluminum castings make it easy to move the pump around.

According to the above content, we can clearly see that water pumps have much positive impact on agriculture as well as on people ' s daily life. Therefore, it is rather necessary to take many aspects into consideration when you go to buy them because the appropriate products can provide you with much benefit.