an important factor in sustainable agriculture and economic management is to calculate areas under different crops that the inputs of agriculture connect to this topic. planning of agricultural mechanization, fertilizer and pesticide requirements, pests and diseases control, estimates of agricultural production, income and tax and financial planning, all linked to the cultivated areas and estim...

2 The map on the title page shows the crop production value of China's cultivated land in Yuan per hectare (Reproduced from: Heilig, 1999). The map shows that there are great divergences in crop productivity between cultivated areas in China. Very " profitable " crop production is possible in the provinces of Hubei, Hunan and parts of Jiangsu. A very poor crop production value is generated in t...

The term “physical development and land use” was primarily raised in the Western countries so that governments could monitor the way the land is used and to maintain property rights. However, with rapid growth of urbanization and development of urban and regional planning the dimensions and the contents of the concept have expanded day by day. The central and practical core of urban planning is...

Landscape dynamics are common phenomenon in the human-dominated environments whereby it can be observed that the composition and configuration between landscape elements change over time. This dynamism brings about habitat loss and fragmentation that can greatly alter ecosystem services at patch, class, and landscape levels. We conducted a study to examine composition and configuration of fores...

alborz province with an area of about 5121.7 km2 has about 0.31% of the total area of the country. the total arable area of the province is about 48954 hectares. water, land and capital are the most important factors for agricultural production. by understanding the subjective beliefs, decision-making criteria and economic incentives of local farmers, the priority of crops can be achieved with ...