What Is Arable Land? Explained!

Agricultural land is a term that is used in the field of agriculture to describe land that is capable of being ploughed and used to grow crops. This may also refer to land that is a type of pasture that is used to raise cattle or sheep. However, the definition of arable land can be very specific and agricultural statistics may have a more accurate definition of the term.

MCDM-AHP method for saffron cultivation

Using GIS, a weighted linear combination model was applied to determine the most suitable area for saffron cultivation in Azadshahr Township. A weighted linear combination model (WLC) is a GIS-based decision rule which is frequently applied in resource evaluation problems. It is especially useful in land use/suitability analysis. It can be easily implemented in GIS environments and provides the most accurate results.

Saffron is a valuable export product in Iran. The value of saffron is dependent on several factors including weather, soil, and water. It generates an income per cubic meter of water that is eight times more than cereals and 20 times more than potatoes.

The highest stigma yield occurs in silty soil textures. The number of flowers is limited by a high relative humidity and low rainfall. The saffron growing season is limited to autumn. A saffron garden should face south. Identifying suitable areas for saffron cultivation can increase the economic benefits for the farmers.

A suitability map was created using AHP and analytic hierarchy process (AHP). In addition, the fuzzy analytic hierarchy process was developed. These processes included determining weights for topography, soil, and salinity. These weights were added to the expert’s choice.

The most suitable areas for saffron cultivation were identified as those in cultivation strips from the southwest to the southeast of the region. This was done by taking into account several criteria. Among the criteria, the most important was the soil type. This was determined based on the Landsat-8 satellite images. Soil types include clay loam, sandy loam, and silt.

The study also evaluated the salinity stress. This stress limits water transfer and limits the photosystem efficiency. The salinity stress map showed lower values in rivers and catchments. This was due to the water shortage in Iran. It has been reported that salinity reduces growth. It is also known that high salinity reduces the maximum quantum yield.

The suitability model also took into consideration slope. The most suitable areas for saffron were found to be those with a slope of less than eight percent. These areas are also those with favorable soil conditions.

Carl Sauer’s Land of Plenty Hypothesis

During his long tenure at the University of California, Berkeley, Carl Sauer was one of the era’s most prolific and intrepid researchers. His scholarly output has not diminished since his retirement from active teaching in 1957. His contributions to early land-use mapping in the United States helped catapult him into the national spotlight. He also served on the advisory committee for the John Simon Guggenheim Memorial Foundation and on the President’s Science Advisory Board, among other high-profile jobs. He played a major role in establishing the United States Soil Conservation Service, as well as helping to establish the U.S. Department of Agriculture’s national weed control program. His most memorable contribution may have been his design of the Michigan Land Economic Survey.

Sauer was also one of the first academics to make the leap from academia to the real world. After receiving his PH.D. from the University of Michigan, Sauer was appointed to the staff of the newly minted department of geology and geography at the university. His most memorable contribution may have been his innovative design of the Michigan Land Economic Survey. This feat brought him national recognition and a spot on the U.S. Department of Agriculture’s Soil Conservation Service advisory committee. He also served as a consultant to the President’s Science Advisory Board and helped to establish the U.S. Department of Transportation’s National Highway System.

For more than three decades, Sauer was chairman of the department of geography at the university. In addition to his groundbreaking contributions to early land-use mapping in the U.S., he was also one of the first academics to explore the history of the Pacific Coast. During this time, he studied the history of tropical Mexico and Central America. In the process, he also uncovered the fact that the best crop for the area was cotton.

Pesticides and fertilizers increase farming efficiency but cause environmental pollution

Agricultural chemicals and pesticides are used extensively to increase the productivity of farms and improve yields. However, they have negative effects on the environment. These chemicals can cause serious health problems for humans and plants.

The excessive use of chemical fertilizers has led to the growth of greenhouse gas emissions. Excessive use of pesticides has also led to a reduction in natural habitats. Pesticides are known to interfere with the absorption of essential mineral nutrients by plants. This reduces the quality of crops and negatively affects pollination.

The increase in food demand is projected to increase pesticide usage in the coming decades. Agriculture contributes significantly to water pollution. Water pollution from agricultural activities is estimated to cost OECD countries more than billions of dollars annually.

Pesticides are highly persistent and they accumulate in soil, water, air, and plant parts. These compounds are also found in fish that are toxic. Their presence in the food chain leads to reproduction-related problems, as well as cancer and other health risks.

A recent study found organochlorine pesticides in blood samples of endangered species. The decomposition of these compounds has a slow rate. This affects the quality of agricultural crops and also pollutes groundwater. In addition, they have a slow migration into upper trophic levels of the food chain.

Pesticides are used in agriculture to increase yields and reduce pests. However, their use is increasing in developing countries. This increases the risk of human health problems, such as non-allergic asthma, cancer, and reproduction-related problems. They can also contaminate local water bodies and pollute the entire ecosystem. Agricultural chemicals and pesticides are a major source of water pollution in rivers, lakes, and other water bodies.

The present manuscript is an attempt to critically evaluate the use of pesticides around the world. It also provides guidance to researchers who are attempting to study their impact on ecosystems.

The usage of pesticides is also increasing in developing countries. These chemicals are used to control insects and weeds. However, misuse of these chemicals has led to a wide range of health problems, including cancer, non-allergic asthma, and reproductive-related problems. In addition, the use of untested chemicals enhances the risks.