نتایج جستجو برای: land evaluation

تعداد نتایج: 935552  

Journal: :بوم شناسی کشاورزی 0
حمیدرضا باقرزاده علی باقرزاده حمید معین راد

land evaluation is the process of predicting the land use potential on the basis of its attributes. at the present study the qualitative land suitability evaluation was investigated for specific cereal crops including irrigated wheat (triticum aestivum l.), mays (zea mays l.) and cotton (gossypium herbaceum l.), based on fao land evaluation frame works (1976, 1983 and1985), climatic and soil re...

Journal: :JCP 2011
Jiulong Zhu Xiaoyan Tao

Study on land ecological safety has become a forefront topic of regional sustainable development. The paper constructed an evaluation index system of land ecological safety. Then it discussed the ranges of indexes corresponding to each evaluation grade. Considering the illegibility and uncertainty in land ecological safety evaluation, the paper combined fuzzy matter-element and entropy method t...

اقدر , حسین , رحیمی, وحید, محمدیاری, فاطمه, پورخباز, حمیدرضا,

The area of Zagros forests is continuously in danger of destruction. Therefore, the remaining forests should be carefully managed based on ecological capability evaluation. In fact, land evaluation includes prediction or assessment of land quality for a special land use with regard to production, vulnerability and management requirements. In this research, we studied the ecological capability o...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی - دانشکده علوم زمین 1389

چکیده ندارد.

Journal: :Computers & Geosciences 2011
Kai Xu Chunfang Kong Jiangfeng Li Liqin Zhang Chonglong Wu

Suitability evaluation of urban construction land based on geo-environmental factors is the process of determining the fitness of a given tract of land for construction. This process involves a consideration of the geomorphology, geology, engineering geology, geological hazards, and other geological factors and is the basis of urban construction land planning and management. With the support of...

2009
Hongxia Xue

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...

ژورنال: علوم آب و خاک 2008
امینی, امیر مظفر , ایوبی, شمس الله , جلالیان, احمد , رستمی نیا, محمود ,

  Extension of cultivation areas becomes gradually impossible due to ever-increasing population growth and urban area development in Iran. Therefore, it is very important to use the existing cultivated lands more efficiently. Land suitability evaluation makes the sustainable use of the lands feasible. The objective of this study was qualitative, quantitative and economic suitability evaluation ...

2010
Zhiquan Zhao Xiaoyan Tao

Study on land ecological safety can help people acquire the states and changes of land ecosystem. It is of great significance to realize the reasonable utilization of land resource. The paper constructed an evaluation index system of land ecological safety based on Pressure-State-Response model. Then the paper combined fuzzy mathematics and matterelement theory to establish an evaluation model ...

Journal: :مرتع و آبخیزداری 0
راضیه صفی یاری دانشجوی کارشناسی ارشد مهندسی علوم خاک، دانشگاه تهران فریدون سرمدیان استاد دانشکدة مهندسی علوم خاک، دانشگاه تهران احمد حیدری دانشیار دانشکدة مهندسی علوم خاک، دانشگاه تهران شیرین یونسی دانشجوی کارشناسی ارشد مهندسی علوم خاک، دانشگاه تهران

evaluation soil erosion is an important matter to protecting it from destroying in future due to the excessive use of the inherent capacity of soil and also improper management. therefore, in this study land vulnerability related to water and wind erosion of abyek for crops and pasture land has been evaluated, using raizal model as one of the microleis sub-models. morphological and physical and...

امینی, امیر مظفر , ایوبی, شمس الله , جلالیان, احمد , رستمی نیا, محمود ,

  Extension of cultivation areas becomes gradually impossible due to ever-increasing population growth and urban area development in Iran. Therefore, it is very important to use the existing cultivated lands more efficiently. Land suitability evaluation makes the sustainable use of the lands feasible. The objective of this study was qualitative, quantitative and economic suitability evaluation ...

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