نتایج جستجو برای: aqua crop model

تعداد نتایج: 2166057  

2014
Toshichika Iizumi Navin Ramankutty

Most studies of the influence of weather and climate on food production have examined the influence on crop yields. However, climate influences all components of crop production, includes cropping area (area planted or harvested) and cropping intensity (number of crops grown within a year). Although yield increases have predominantly contributed to increased crop production over the recent deca...

2008
J. Ge J. Huang F. Weng W. Sun

Effects of dust particles on microwave radiation over the Taklamakan desert are studied with use of measurements from the Advanced Microwave Scanning Radiometer (AMSR-E) on the EOS Aqua satellite and a microwave radiation transfer model. Eight observed cases show that the signal from atmospheric dust can be separated from the surface radiation by the fact that the dust particles produce stronge...

2013
Anil Ramakrishna

Estimation of crop production can be a very useful tool while planning a nation’s agriculture. The use of statistical techniques in developing such tools is a popular and well studied problem. In this paper, we present a statistical model that predicts the total crop production for a geographical region, given the season of harvest and the total land used. We apply this model on four major crop...

Journal: :آب و خاک 0
احمد غفاری علی اصغر منتظر علی رحیمی جمنانی

abstract the present study was carried out for developing and evaluating of the optimization model of cropping pattern in irrigation networks using analytical hierarchy process (ahp). the model was programmed into two sub-models. the objective of the first sub-model was ranking of crop appropriately, and the objective of the second sub-model was ranking of cropping area of each crop. ten criter...

2002
Yu Zhang Changsheng Li Xiuji Zhou Berrien Moore

Predicting impacts of climate change or alternative management on both food production and environment safety in agroecosystems is drawing great attention in the scientific community. Most of the existing agroecosystem models emphasize either crop growth or soil processes. This paper reports the latest development of an agroecosystem model (Crop-DNDC) by integrating detailed crop growth algorit...

asghar tofighi, javad Tolouei azar, solmaz babaei bonab,

Background & Aims: Retinol-binding protein 4 (RBP4) as an adipokine is involved in regulating insulin function and glucose metabolism. Serum levels of RBP4 have been identified as one of the most effective factors in impaired glucose tolerance and diabetes. Studies have shown that exercise improves metabolic syndrome and hepatotoxicity. But the effects of Aqua training on liver Enzymes in diabe...

Journal: :Journal of physics 2023

Abstract The aqua-agriculture food sector, challenged by climate change, exploited biodiversity, insecurity, water crisis, and global pandemic, urgently needs the sustainability transition more sustainable practices. Sustainability transitions aim to transform current patterns of production consumption into ones while enhancing ecological economic situation. This agenda is much possible with in...

Journal: :آب و خاک 0
رمضانی اعتدالی رمضانی اعتدالی نظری نظری توکلی توکلی پارسی نژاد پارسی نژاد

abstract: deficit irrigation technique can be used for produce more yield for every unit of irrigation water, and cause to increase crop economical benefit. main purpose of deficit irrigation is high water use efficiency with decreasing in irrigation sufficiency. in this research potential of cropwat model in deficit irrigation management for two crops, wheat and barley in karaj climate was stu...

Journal: :Acta Crystallographica Section E Structure Reports Online 2008

Abstract In order to determine the best water production function (CWPF) for predicting grain yield of a soybean crop four models were evaluated. The four functions evaluated were Jensen (1968), Minhas et al (1974) and modified Stewart et al (1977) and modified Bras and Corodova (1981) models. Field experiments were carried out for evaluation of the models. The grain yields simulated by the c...

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