نتایج جستجو برای: agricultural used land
تعداد نتایج: 2401809 فیلتر نتایج به سال:
n the twenty years that preceded 1920 I there was a 245 percent increase in the average per-acre price of farmland (including improvements) before land values fell sharply. Today’s escalation in land values-364 percent between 1957 and 1977-prompts some pointed questions: Have land prices reached their peak? If not, when will they plateau, if ever? Will they then decline and, if so, will the de...
Decisive factor of scale of land is the capacity of management and control of agricultural operation subject, which is strengthened with improvement of skills. Only if scale of land is enlarged accordingly, then economic profit can be gained. Under such external circumstances as reduction of agricultural comparative advantage and fluctuation of relative factor prices brought about by economic d...
One of the most important problems facing desert areas today is the growing trend of desertification and land use change. Land use is a special use of man from the earth. These uses are changing over time and these changes lead to increased land degradation and ecosystem destruction, especially in arid and semi-arid regions. Accordingly, in this research, the trend of land use change in the eas...
Land cover changes influence the biogeochemistry, hydrology, and climate of the earth. Studies that assessed land cover changes at the global scale mostly focused on: deforestation, cropland expansion, dry land degradation, urbanisation, pasture expansion, and agricultural intensification. For the assessment, remotely sensed land-cover data, census data, and expert knowledge were used. In tropi...
non-consolidation and dispersion of agricultural lands is considered as one of the serious barriers against agricultural development. small-size farms along with their being dispersed hinders the efficient use of water, land, labor, mechanization and other factors effective in agricultural production. the main purpose followed in this article is to study the attitude of farmers towards land int...
Increase in CO2 emissions induced by agricultural inputs in China since its socialist market economic reforms may hinder its sustainable economic development. More attention has been paid to changes in agricultural land use and overall land use benefit; however, relatively less attention has been paid to changes in CO2 emissions induced by agricultural inputs in China since the reforms. The car...
Improper use of rangelands may lead to their destruction. Therefore, the conversion of these degraded rangelands to agricultural lands and other land uses may improve their soil quality. The purpose of the present study was to evaluate the impact of cultivation in the degraded rangelands on some soil characteristics in Safashahr region of Fars province. Four land uses including the rangeland wi...
Agroforestry systems and tree cover on agricultural land make an important contribution to climate change mitigation, but are not systematically accounted for in either global carbon budgets or national carbon accounting. This paper assesses the role of trees on agricultural land and their significance for carbon sequestration at a global level, along with recent change trends. Remote sensing d...
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