Negative Impact On Plant Life

The global population is expected to reach 9 billion people by the year 2050 and scientific projections indicate that world is on a trajectory towards an environmental and global food crisis. World Leaders, environmental enthusiasts and aid agencies have cause for alarm as they support urgent policies for change, for without them mankind will face unprecedented food insecurity. In 2015 estimates were that there were “some 795 million people” [World Food Programme, 2015], experiencing food insecurity and 3.1 million children under 5 died through malnutrition, while Australians continue to waste an estimated 361 Kg’s of food per person per yr [PMSEIC, 2010, p.44] All the while the earth groans under the weight of Greenhouse Gas Emissions [GHG], deforestation, soil degradation and

More than six billion individuals live on planet Earth. As the populace develops, we are taking increasingly land to live and utilizing a greater amount of the world's characteristic assets. Numerous human exercises likewise create POLLUTION, which is harming the Earth's surroundings.

The transition from the traditional hunter gatherer societies, in to an agriculture based living system, has allowed humans to increase their population size, putting strains on the Earth’s environment. Agriculture has also brought along with it a decrease in women’s roles in the community, while also bringing about a class system where the wealthy rule, and were the weak and poor obey. As humans began to domesticate more plants and animals, they settled in permanent areas. The Change from hunter gatherer benefited few, but had dire consequences for the earth and groups with in it. One such consequence was the population increase, which has lead to major issues throughout history, and one that has ties to current global issues.

After learning about the statistics of how much agriculture consumes our planet, I was appalled to see how destructive it is. Jonathan Foley put into perspective the increase and rapid demand for food. Agriculture alone consumes 40% of our land surface, 70% of our irrigation system, and

I care deeply about the planet Earth, the home humans originate from, so it pains me to watch “modern” society devastate natural life across the board. I feel personally connected to the issue of how we use our land. Having lived in the Lee County area since birth, I have noticed just in our own little part of the world how much “development” can change things. There used to be so much more plant life: trees, grasses, flowers and a myriad of other greenery. What was once considered “empty” lots, by some, have been adapted to suit human desires be it additional roads, restaurants, shopping malls, and a continuing spread of “chain” corporate industries. Beyond human structures, huge amounts of land also are cultivated for industrial farming

Presently, 6.8 billion people exist on the Earth today. Combined, the entirety of farmland needed for these billions of people to be fed is equivalent to the size of South America. The population of Earth is still steadily increasing. Populations are expected to continue rising to 9.6 billion within the year 2050. Each one of these extra people also needing more healthy food, clean water, space, and energy to survive. When these extra bodies arrive, in addition to crop late the size of South America, an extra plot the size of Brazil will also be needed. This is not even including the land that every other creature on the planet needs to survive. When this is added to the calculation, eighty percent of dry land will need to be dedicated to

First of all, farmers or gardeners acknowledge erosion and take into consideration of how to deal with it. When farmers or gardeners plough their plants, the topsoil can easily be eroded with wind or run-offs. This can create problems for local streams or for the soil. People learned to use other plants like bushes to counter wind erosion, also know as “windbreak”.

Through the years, our planet has been negatively affected by anthropogenic activities. The Anthropocene has been thought of as a geological period where human activity has negatively impacted ecological systems on the planet. These harmful activities have led to, air pollution, soil degradation, and soil contamination in urban and suburban areas, by dangerous pollutants like heavy metals and polycyclic aromatic hydrocarbons (Kumar & Hundal, 2016). Soil and air pollution and other environmental issues and pressures will continue to be a problem as the world’s population rises in an urbanizing society. Now, more than ever, we must collectively work towards a good Anthropocene, which is essentially building sustainable systems that will mitigate the environmental harm already done to the planet and its people. A good Anthropocene will have positive impacts on the natural, built, and social environments.

The current global population of 7.6 billion people is expected to reach 11.2 billion in 2100 (UN DESA), and as the Earth’s population continues to grow exponentially, the topic of environmental sustainability is being debated with increased urgency. In the past few years, many large-scale environmental issues have emerged due to human activities: climate change, air and water pollution, rising sea levels, habitat loss, species extinction, and worsening natural disasters are all becoming more and more prevalent. But perhaps our most immediate concern should be whether or not we will be able to continue feeding this ever-increasing population.

to be grown trees have to be cut down and I have explained the effects

Erosion removes the surface soils, containing most of the organic matter, plant nutrients, and fine soil particles, which help to retain water and nutrients in the root zone where they are available to plants. Thus it affects the productivity of plants. The remaining, the subsoil, tends to be less fertile, less absorbent and less able to retain pesticides, fertilizers, and other plant nutrients. There are over 17,000 soil types recognized worldwide. They vary widely in structure, erodibility, fertility, and ability to produce crops. A generalized soil profile for a humid, temperate climate is showed. When the natural vegetation is cleared for agriculture, soils become exposed to erosion and loss of soil fertility. The removal of the above-ground natural

The future of the human race is terrifying to ponder about; not only does it raise many questions as to how the constant population growth will be handled, but it also causes natural resources to become more limited by the day. As human beings progress towards the future they will undoubtedly accomplish a myriad of feats. It is essential that one of such feats can solve the issues brought forth by the ever growing population of the human race. Furthermore, engineers must either generate new ways to sustain the increasing population, or they must develop systems to restrict the growth of population in general. It may even be possible for engineers to apply their work towards developing certain systems or technologies which can do such things as producing more clean drinking water, disposing of waste more efficiently, being more efficient with energy (such as oil and fossil fuels), etc. If present day engineers do not work quickly toward solving these problems, it could be catastrophic. The human race is running out of the required resources to sustain the current population, let alone the future population of the Earth at this rate. The population of people on the Earth is expected to reach 8 billion by 2024 and is projected to be 10 billion by 2056. (Worldometers, 2016). As the population will increase by billions in the next few decades, the human race will not be able to sustain such essential resources as oil, coal, and many other essential resources for human survival.

As the world population continues to rise, there are growing concerns for maintaining agricultural farmlands, especially in developing countries with drought and famine. This has also led to many shortages of food, due to high demand because of the increasing population. Demographists worry that if this growing issue continues to hurt food consumption of povertized countries, than there will be more deaths because the population is increasing, but the food levels are staying the same, or even decreasing. Some of these demographists believe that this is occurring, because the developed countries are intaking too much food. Others believe that this is because of the overpopulated countries, and the fact that they are in higher need for food because of their population. Another problem that arises within this is deforestation. Deforestation is a part of this growing problem because when massive woodlands are cut down, the lands become dry and bodies of water in or around the land dry up, making crops unsuitable for crop growth and crop rotation, leading to the lands to turn into non-arable lands. This is also known as desertification. This correlates with population growth because if lands become non-arable, then crops won’t grow there, leading to starvation in developing countries with higher population needs and demands. Although some people are taking action for the problems that this issue has given us, we’re still nowhere near solving the problem.

Plants, being sessile organisms cannot move to more favorable places to escape the adverse effects of HM toxicity.Exposure of the plants to toxic levels of HM triggers a wide range of physiological and biochemical process; and plants in order to cope with the negative impacts of toxicity develop and/or adopt a series of strategies (Fig.1) (Hayat et al., 2012). The initial response of the plants to various stresses, including HM accumulation in the soils involve perception of stress stimuli, signal transduction and transmission of amplified signal (mitogen activated proteins viz; SIMKK,SIMK, SAMK,MMK3,MMK2) into cell and acceleration of the cell machinery to bring about comparative changes in cascades of physiological, biochemical and

Significantly, desertification also cause soil erosion, which means soil surface is worn by wind and water. Desertification makes soil easy to erode by water or wind, as soil is exposed and soil structure is instable without forest. LaI R(2003) says that ““Land area globally affected by erosion is 1094 million ha (Mha) by water erosion, of which 751 Mha is severely affected, and 549 Mha by wind erosion, of which 296 Mha is severely affected.” To control soil erosion, an obvious way is virescence, enlarging forest cover, which can protect the soil far from exposing to strong wind. Also, the roots of plants under ground play a role as a framework, as they are obstructions to soil movement,