نتایج جستجو برای: land use( agricultural
تعداد نتایج: 1889356 فیلتر نتایج به سال:
with the increasing population and the need for more food, as well as with the development of science and technology, human approach to unnatural and often chemical inputs to increase agricultural production has been a great expansion and problems such as increased cancers, chronic diseases has created environmental pollution. implementation of organic organic is a solution to these problems . ...
rivers and runoff have always been of interest to human beings. in order to make use of the proper water resources, human societies, industrial and agricultural centers, etc. have usually been established near rivers. as the time goes on, these societies developed, and therefore water resources were extracted more and more. consequently, conditions of water quality of the rivers experienced rap...
Recently, land use and land cover change have received increased attention, and an approach is required that can assess agricultural land use intensity on a general basis. This study demonstrated the usefulness of a tool for characterizing and assessing agricultural land use intensity in Beijing mountainous region. An emergy analysis and principal component analysis (PCA) were adopted to obtain...
This paper is on the basis of the former evaluation system of intensive use of agricultural land, unifying the actual situation of new countryside construction in our country, to analysis the intensive use degree of every province’s agricultural land in our country using the method of principal and factor analysis. The research, melting into the agricultural industry target in the former evalua...
purpose: one of the major problems in the agriculture field is the land use change that has been growing recently and disturbing the balance of agricultural products in long term. there are many factors that affect farmers' willingness to change the use of land. in this regard, the main objective of this study is to identify factors which affect the agricultural land use change in rural areas i...
< p>Successful implementation of land reform requires the implementation of large-scale market transformations, in particular in the structure of land tenure and land use, in the field of land valuation. The article is devoted to the development of scientific and methodological bases of economic evaluation and use of land resources of agricultural enterprises, substantiation of approaches and r...
This paper analyses determinants of agricultural land prices in Sweden with a particular focus on location-specific factors. An asset-pricing model is used to decompose agricultural land prices into expected returns from land in its current agricultural use and expected returns from its potential use. The model is estimated in a cross regional context where explanatory factors relate to regiona...
There is a need for expanding agricultural lands due to increased demand for food production and security. Some regions can convert available land to agricultural land use. In order to evaluate available land for future agricultural production, multi-criteria evaluation (MCE) methods can be used to identify the land suitability. This study proposes and implements the soft computing logic and Lo...
The relation between human population growth and land use change is much debated. Here we present a case study from Papua New Guinea where the population has increased from 2.3 million in 1975 to 5.2 million in 2000. Since 85% of the population relies on subsistence agriculture, population growth affects agricultural land use. We assessed land use change in the Morobe province (33,933 km2) usin...
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