نتایج جستجو برای: productivity zone and gis models

تعداد نتایج: 16959967  

2004
K. Lee

Recently, new approaches with commercial high-resolution satellite imagery in the engineering application domains have been attempted. Among them, uses of remotely sensed imagery linked with GIS-T (Geographic Information Systems for Transportation) or transportation geography are regarded as one of prospecting issues. As the matter of facts, most transportation applications are needed real-time...

Journal: :Journal of environmental biology 2010
S V Sowmya R K Somashekar

Fire is the most spectacular natural disturbance that affects the forest ecosystem composition and diversity. Fire has a devastating effect on the landscape and its impact is felt at every level of the ecosystem and it is possible to map forest fire risk zone and thereby minimize the frequency of fire. There is a need for supranational approaches that analyze wide scenarios of factors involved ...

2004
P. Yang R. Shibasaki

This paper describes a method of integrating remotely sensed data (the MODIS LAI product) with an ecosystem model (the spatial EPIC model) to estimate crop yield in North China. The traditional productivity simulations based on crop models are normally sitespecific. To simulate regional crop productivity, the spatial crop model is developed firstly in this study by integrating Geographical Info...

2007
Dayong Shen Kaoru Takara Yasuto Tachikawa

To simulate dynamic soft geo-objects and reflect geoscientific laws, the authors discuss the characteristics, mathematical expression, parameter representation and rendering of GIS Flow Element (FE) and GIS Soft Voxel (SV). The simulation and rendering algorithms of GIS FE and GIS SV are based on particle system and metaball technology in computer graphics. The main differences are that GIS FE ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1389

the current study examined iranian undergraduate efl students’ willingness to communicate with regard to their vocabulary knowledge. in general, participants were somewhat willing to communicate in english. the total mean score of 730 university students’ perception of willing to communicate was 83.53 out of 135. results, regarding four parts of willingness to communicate, revealed that part...

Journal: :journal of rangeland science 2015
victor r squires elahe karami

the arid zone encompasses land that has an imbalance between precipitation and losses through evaporation. globally, arid zones comprise large part of many countries in the mid-latitudes in both the northern and the southern hemispheres. both australia and iran are countries with a large arid zone. this negative water balance in the arid zone affects the type of land use in these countries. at ...

2010
Shafaatunnur Hasan Mohd Noor Md Sap

Rice, Oryza sativa, also known as paddy rice is produced by at least 95 countries around the globe with China and India are the largest producers of rice in the world; while Thailand, Vietnam and America are the largest world rice exporters. To sustain rice productivity, advance agriculture technologies have always been deployed to increase the productivity of this food grain. This is due to th...

2002
Guoxin TAN Ryosuke SHIBASAKI

Abslraci-This article focuses on developing a predictive method to simulate the distribution of agricultural land use patterns based on remote sensing and a multiple choice logit model. A multiple choice model is developed to determine land use options such as rice cropland, maize cropland, wheat cropland, soybean cropland and so on. The independent variables are grouped under two categories: b...

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