نتایج جستجو برای: land evaluation

تعداد نتایج: 935552  

Journal: :مدیریت خاک و تولید پایدار 0
مسلم ثروتی عضو هیئت علمی دانشگاه ارومیه علی اصغر جعفرزاده عضو هیئت علمی دانشگاه تبریز فرزین شهبازی عضو هیئت علمی دانشگاه تبریز حسن محمدی دانشجوی کارشناسی ارشد دانشگاه شاهد نیلوفر تیمورپور دانشجوی کارشناسی ارشد

irrigular land use, land degradation and increasing yield per surface area unit supplicate to be inevitable optimal land utilization.so land evaluation, planning and management to be necessary to achieve a sustainabledevelopment.following this trend, microleis (mediterranean land evaluation information system)has evolved towards an agro-ecological decision support system.the goal of this study ...

Journal: :Remote Sensing 2015
Wenzhong Shi Xiaokang Zhang Ming Hao Pan Shao Liping Cai Xuzhe Lyu

Validation of land cover products is a fundamental task prior to data applications. Current validation schemes and methods are, however, suited only for assessing classification accuracy and disregard the reliability of land cover products. The reliability evaluation of land cover products should be undertaken to provide reliable land cover information. In addition, the lack of high-quality ref...

1996
David G. Rossiter

Land evaluation is the process of predicting the use potential of land on the basis of its attributes. A variety of analytical models can be used in these predictions, ranging from qualitative to quantitative, functional to mechanistic, and specific to general. This paper classifies land evaluation models by how they take time and space into account, and whether they use land qualities as an in...

2003
A. K. Bregt

Land evaluation is the prediction of land performance over time under speci®c uses, to guide strategic land use decisions. Modern land evaluation has a 30 year history, yet the results have often been disappointing. Land users and planners have been reported to ignore land evaluations, perhaps re ̄ecting poor quality, low relevance, or poor communication. To test the success of a large land eval...

ژورنال: علوم آب و خاک 2001
ایوبی, شمس الله, جلالیان, احمد , گیوی, جواد ,

Qualitative land suitability evaluation is based on the physical parameters affecting the yield agricultural crops. The socio-economic factors are not considered in such evaluations. This study was carried out to assess the qualitative land suitability for irrigated wheat, barley, maize and rice in northern Baraan. Five soil series and 25 different phases were first delineated. Land utilization...

ایوبی, شمس الله, جلالیان, احمد , گیوی, جواد ,

Qualitative land suitability evaluation is based on the physical parameters affecting the yield agricultural crops. The socio-economic factors are not considered in such evaluations. This study was carried out to assess the qualitative land suitability for irrigated wheat, barley, maize and rice in northern Baraan. Five soil series and 25 different phases were first delineated. Land utilization...

2007
Fengchang Xue Zhengfu Bian

The evaluation of land quality plays an important role in the study of land resources. Some software of GIS was applied to evaluate land quality in recent years. There is some limitation in Appling GIS to evaluate land quality directly. GIS combined with MCE (Multi-Criteria Evaluation) can eliminate limitation existing in using GIS singly. In this thesis key technology of evaluating land qualit...

2008
Hongbo Jin Yuanfang Huang Shiwen Zhang Guan Gong

Taking Renjiazhuang coal mine as the object of study, this paper carries on evaluation to destruction degree in this area by using extension theory and establishing evaluation extension model of land destruction in mining area. Results show that severe destruction area of collapse land in Renjiazhuang coal mine is 112.86hm, moderate destruction area is 372.27hm, light destruction area is 723.42...

2010
Fengchang Xue

GIS-MCE is the main method in land evaluation,but it is a linear method and neglects multidimensional complexity of factors used in land evaluation, which leads to information loss. Multidimensional scaling (MDS) originates from psychoanalysis, which is used to describe multidimensional data in higher dimensions by transforming data in higher dimensions into geometry structure in Lower dimensio...

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