نتایج جستجو برای: arid agriculture

تعداد نتایج: 81907  

Journal: :آب و خاک 0
زارع ابیانه زارع ابیانه قاسمی قاسمی بیات ورکشی بیات ورکشی معروفی معروفی

abstract evapotranspiration as one of the important elements in agriculture has a considerable role in water resource management. therefore, using a more exact estimation method is an essential step of agricultural development, especially in arid semi-arid area. in this research, in order to exact estimate of garlic evapotranspiration using lysimeteric data, an artificial neural network (ann) m...

Journal: :desert 0
b. shokati department of agronomy, faculty of agriculture, university of zabol, zabol, iran m.r. asgharipour department of agronomy, faculty of agriculture, university of zabol, zabol, iran a. ghanbari department of agronomy, faculty of agriculture, university of zabol, zabol, iran b. feizizadeh department of physical geography, centre for remote sensing and gis, university of tabriz

in the way of finding economic and tolerable plant to the arid and semi-arid climatic conditions and prevent desertification in these areas, this study aims to assess agro-climatic suitability for producing saffron in east-azerbaijan province based on geographic information system (gis) spatial analysis technique. for this goal, several criteria including soil conditions, climatological indicat...

2017
Eric W. Chance Kelly M. Cobourn Valerie A. Thomas Blaine C. Dawson Alejandro N. Flores Prasad S. Thenkabail

There are pressing concerns about the interplay between agricultural productivity, water demand, and water availability in semi-arid to arid regions of the world. Currently, irrigated agriculture is the dominant water user in these regions and is estimated to consume approximately 80% of the world’s diverted freshwater resources. We develop an improved irrigated land-use mapping algorithm that ...

Journal: :Remote Sensing 2015
Said Nawar Henning Buddenbaum Joachim Hill

Modeling and mapping of soil properties has been identified as key for effective land degradation management and mitigation. The ability to model and map soil properties at sufficient accuracy for a large agriculture area is demonstrated using Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) imagery. Soil samples were collected in the El-Tina Plain, Sinai, Egypt, concurren...

2012
Mohammad Valipour

More accurate forecasting of monthly rainfall is significantly important in drought forecasting in agriculture, irrigation schedule, water resources management, and crop pattern design. In this paper, ability of time series models in forecasting the rainfall according to the climate conditions is estimated. For this purpose, rainfall data of four different climates in Iran was selected. Using t...

2016
Elia Scudiero Dennis L. Corwin Ray G. Anderson Todd H. Skaggs

Soil salinity undermines global agriculture by reducing crop yield and impairing soil quality. Irrigation management can help control salinity levels within the soil root-zone. To best manage water and soil resources, accurate regional-scale inventories of soil salinity are needed. The past decade has seen several successful applications of soil salinity remote sensing. Two salinity remote sens...

2012
Jinping Zhang Junfeng Zhang Qiting Zuo

Evapotranspiration is a central process of the hydrological cycle, and various water saving measures are based on it. However, there is little research work on evapotranspiration in the world. In particular, there is rare hydrological cycle-based research on the impact of channel lining on evapotranspiration in arid and semi-arid regions. This paper applies a hydrological cycle model to examine...

2018
Hassan Etesami Gwyn A. Beattie

Salinity stress is one of the major abiotic stresses limiting crop production in arid and semi-arid regions. Interest is increasing in the application of PGPRs (plant growth promoting rhizobacteria) to ameliorate stresses such as salinity stress in crop production. The identification of salt-tolerant, or halophilic, PGPRs has the potential to promote saline soil-based agriculture. Halophytes ar...

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