دانلود کتاب مدیریت تولید گیاهی تحت محیط در حال تغییر

The world population is expected to reach 9.8 billion in 2050 but agricultural lands will not expand the same speed. Already, one in nine people around the world suffer from hunger, and the only way to feed them is by doubling food production in a sustainable way. To meet this challenge, we must increase the food production by 70% to feed the increasing population by the year 2050. Global climate change is becoming a great concern for future agriculture that manipulates different complexes of nature and environmental components, thus restricting the utility of natural resources of the planet by disturbing the ecosystem. As water cycle is a vital component of this ecosystem, it has been severely hampered by the climate change in such an extent that it becomes unable to provide the required environment for plants. Moreover, the levels of environmental pollutants are increasing significantly due to climatic adversities and anthropogenic activities due to rapid urbanization and industrialization. All of these negative impacts are accelerating with the passage of time and ultimately link with agriculture. According to FAO, around 60% of the world population depends on agriculture and thus extensive agricultural activities provoke substantial negative impacts on the environment. Climate change affects agriculture and forestry globally, though its impacts may vary depending on the geographical region at different levels. But a minor change in the climate can affect the productivity of the crops to a great extent. One of the major effects of climate change is plant abiotic stress which includes salinity, drought, flooding, heat, cold, metal/metalloid toxicity, etc. These negatively affect plant growth, physiology, and yield to a great extent. Agriculture is a significant factor in reducing poverty and developing the economy of the world. Agriculture and food production mainly depend on two natural resources, water and land. Advancements in technologies have contributed to more food production but it is not enough for current growing population. An increase in the production of growth that ultimately leads to an increase in economic growth put a huge cost into the natural environment. Therefore, enhancing plant productivity in changing climate is one of the major tasks for plant biologists.