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1 Background of Sandikhola
Sandikhola is situated in the Ghorka district in Nepal. The area is mountainous and is isolated due to its surrounding rough roads and steep terrain.
1.1 Geographical Situation of Sandikhola
The Ghorka region is located 140km west of the capital Kathmandu. It is positioned in the central hill region. It is located at an altitude of 1259m above sea level. (EWB Challenge 2014)
Figure 1: Map of the Ghorka Region
1.2 Population of Sandikhola
Sandikhola has a population of 456 people. Majority of these people make a living from farming. (2014 EWB Challenge Resources)
2 Current situation
Sandikhola has a subtropical climate and receives on average 1400-2000mm of rain per year and has an average of 26oC. Sandikhola has a two-season year made up of the dry and wet seasons. The dry season runs from October to May and the wet season from June to September.
2.1 Fuel for cooking
Villagers use firewood, which they get, from community forests where each community has its own allocation of wood. Buffalo and cow dung mixed with water and then fed into a reactor is used to provide villagers with biogas.
2.2 Effects of the cooking techniques used
Firewood storage takes up a lot of space. It also takes several hours to collect each day and when burnt it produces a lot smoke which is harmful to local residents.
Not all the villagers have access to biogas stoves. For those villagers that use biogas there is no smoke when cooking, but they do not have access to biogas all year round.
2.3 Current designs used
Open-fire and mud stoves which are located both inside and outside the house are used. Biogas is also used. Of three current designs mud stoves are the most used. Mud stoves use less firewood than open-fire stoves.
3 Why changes are required
• Improved cooking conditions
• To reduce storage space
• Environmental effects (deforestation, air pollution)
• To reduce time spent collecting wood
• Not every villager has access to biogas
Important points
• More than 17 million tonnes of fuel wood are consumed annually in Nepal, out of which less than 1% is commercialized. The rest is collected by the users free of cost from forests or their own cultivated land.
• Households with traditional mud stoves use less firewood than those that use a traditional open-fire stove. Information from two nationally representative household surveys show that in 1995/96 about 77% of Nepalese households used firewood for cooking. However, by 2003/04 the proportion of families doing this had increased to 84%.
Biogas also contains significant amounts of Carbon Dioxide (CO2), which is non-combustible. Carbon dioxide in itself does not have any harmful effects and is not removed from the biogas unless we wish to upgrade it into biomethane. In conventional biogas CHP (Combined Heat and Power) plants the equipment for capturing CO2 is not required.
One method of the nomadic plains tribes for cooking was to use rawhide cooking vessels which came from the hump of the buffalo, staked over a mound of earth and left to dry in the shape of a bowl. The pot was put in a shallow hole near the fire, and then carefully selected stones that would not shatter easily would be put in the fire and transferred to the bowl with wood or bone tongs to heat the contents of the pot.
Taking wood from rainforests and old-growth forests is detrimental to the environment and society. However, it is possible for us to have sustainable wood if we make an effort.
Nepal is a relatively small country, 100 miles wide by 500 miles long. The southern border is tropical with rich soils, flora and fauna; making this region of Nepal densely populated by humans (Bishop 1998:10). The mountainous region, however, is more sparsely populated. It is the Sherpa who populate these mountains, specifically the middle Himalayan range (Bishop 1998:11).
One of the most predominate ecosystems is the forest community. Covering about one-fourth of the land area on Earth, forests consist mainly of trees and other woody vegetation, growing closely together. The trees can be large and densely packed, as they are in the coastal forests of the Pacific Northwest, or they can be relatively small and sparsely scattered, as they are in the dry tropical forests of sub-Saharan Africa. Forests are complex ecosystems that also include “soils and decaying organic matter, fungi and bacteria, herbs and shrubs, vines and lichens, ferns and mosses, insects and spiders, reptiles and amphibians, birds and mammals, and many other organisms” (Audesirk, 2003). All of these components constitute an intricate web with many biological interconnections. A bird may depend on the upper branches of a tree for nesting, while the tree may depend on the fungi surrounding its roots to obtain water and nutrients. A forest performs a number of vital environmental services, such as cleansing the air, moderating the climate, filtering water, cycling nutrients, providing a habitat for animals and provides humans with recreation and beautiful scenery. Resources from the forest supply raw materials, such as lumber, paper products, greenery and pharmaceuticals. Some of the developing issues today concerning forests are fires and what we as a society can do to restore the natural ecosystems within the forests around our world. Many aspects are to be considered when looking at the ecology and bioremediation of forests such as, human activities, wildlife, endangerment and environmental changes. This paper will discuss the effect wildfires have on the forest ecosystem.
...ch is used to replace natural gas. He also stated that, among the equipment used to burn the biofuel, the suspension burner have the ability to exceed 99% efficiency and whole-tree burner can reduce the cost of harvesting and handling woody fuels by about 35% (Brown, 2003). Moreover, the usage of bio-energy in long term is to provide a degree of ecological balance and climate change, avoid acid rain, reduce soil erosion and minimize water pollution (Gevorkian, 2007). Therefore, biomass is environmental friendly like solar energy. Based on the research that has been carried out regarding the synthesis of gas from biomass, the gas gasifies in the internal combustion engine. The relative energy density of synthesis gas is higher than the fossil fuel under certain conditions. In addition, the relative flame speed of synthesis gas can reduce the time for spark ignition.
The study’s methodology was qualitative. While the study recognizes that palm oil plantation increases deforestation and consequently reducing biodiversity, the authors argues that the demand for palm oil up to the year 2020 can be met without any reduction of forest cover through the improvement of yields and conservation of degraded land. In particular, the study notes that while palm oil plantation endangers orangutan’s habitat, the authors suggest that encroachment of orangutan’s habitat could be reduced by up to 30% through the use of sustainable land use initiatives and policies. Overall, the findings of this article suggest that is there is a need to advocate for an environmental sustainable biomass industry in Malaysia in order to protect the natural habitat for
Kenya has a humid type of climate with little temperature variation from month to month. The average annual temperature along the coast is 27 degrees celcius, but in Kenya Highlands it is only 14 degrees celcius. About three-fourths of Kenya recieves less than 500ml of rain a year. Most rain fall occurs during the “long rains” from March to May.
would always be firewood on the porch. The house had one of those older heaters that
and to cut down on pollution. Since the number of landfills continues to diminish, keeping
These fuels include coal, oil products such as gasoline, and natural gas. Use of these fuels has a number of harmful health and environmental effects. According to the World Health Organization, outdoor air pollution, most of it from burning fossil fuels, especially coal kills at least 800,000 people each year and causes health problems for tens of millions of others. Technology is available to reduce such air pollution, but using it is costly and results in higher fuel
No one can deny the basic human need for housing. And no one can deny that any advanced culture requires a great deal of paper to transact its daily business. However, one must also recognize the importance of forests in and of themselves. We must fight against deforestation and international community must also introduce stricter policies to stop deforestation. 1) First, we will talk about the effects of deforestation and why it's a problem. 2) Second, we will learn about the many causes of deforestation. 3) Lastly, we will cover how to solve this problem.
centuries. Today with an increasing population the amount of wood available has declined seriously in recent decades. People have been harvesting wood to cultivate land, burn, and for the use of raw materials for industry (Urquhart 2014). The estimated amount of deforestation taking place is twenty million hectares per year (Urquhart 2014). Climate change and global warming are just a few of the problems associated with the degradation of our forests.
Factories and transportation depend on huge amounts of fuel--billions of tons of coal and oil are consumed around the world every year. When these fuels burn they introduce smoke and other, less visible, by-products into the atmosphere.
The Forest fire is occurring very frequently nowadays, reasons for it are a heavy increase in global warming and an increase in temperature.