Soil degradation, defined as the lowering and loss of soil functions, is becoming a serious problem worldwide threatens agricultural production terrestrial ecosystems. The surface residue crops one most effective erosion control measures it increases moisture content. In some areas world, management (SSR) crucial for increasing fertility, maintaining high carbon levels, reducing degradation due to rain wind erosion. Standard methods measuring cover are time labor intensive, but remote...

Abstract Increasing water use efficiency (WUE) is a fundamental remedy for food production under conditions of scarcity. The aim this study was to evaluate the potential saving and yield improvements with ET‐HS model subsurface drip irrigation. For purpose, four irrigation treatments were installed in silty loam soil at an experimental farm near city Isfahan Iran 2000 2001. included: surface (DI), 15 cm depth (SDI ), 30 furrow (FI). These repeated two genera potato, Marfona Navita...

Conservation tillage methods through leaving the crop residue cover (CRC) on soil surface protect it from water and wind erosions. Hence, percentage of CRC is very critical for evaluation intensity. The objective this study was to develop a new methodology based semiautomated fuzzy object image analysis (fuzzy OBIA) compare its efficiency with two machine learning algorithms which include: support vector (SVM) artificial neural network (ANN) previous We also considered spectral images...

The main objective of this study is to apply an object-based image analysis (OBIA) approach satellite processing and determining crop residue cover (CRC) tillage intensity. To achieve goal, we collected ground truth data using line-transect method from 35 plots farmlands with area 528 ha. Accordingly, Landsat Operational Land Imager (OLI) together global positioning system (GPS)-based survey set were considered for applying the OBIA methods deriving CRC. process data, steps including...

In this study, the concentrations of heavy metal (Cd, Pb, Fe, and Ni) in contaminated soils adjacent to two steel mill companies three crops (i.e., wheat, rice, onion) grown these regions were compared with a non-industrial site Isfahan province, central Iran. The results manifold. both soil within industrial turned out be more significant than nonindustrial counterpart. addition, surrounding demonstrated by Cd, Ni according limits provided international standards USEPA European Union...

This study was planned to investigate the concentrations of heavy metal in soils and crops estimate potential health risks metals humans via consumption grown at industrial sites (Zarrinshahr Mobarakeh) control site (Natanz) Isfahan province, central Iran. The food (wheat rice grains onion bulbs) were digested by acid digestion method then analyzed for Mn, Cu Zn atomic absorption spectrophotometer. results showed that concentration Mobarakeh higher than Zarrinshahr Natanz. Mn Natanz...

Qualitative and quantitative restrictions on water resources have given rise to large stress land plants.The recognition of such stresses can be help in crop management.Due the impact yield, plays an important role planning proper irrigation, timing, amount needed by plants.Crop Water Stress Index (CWSI) is used for monitoring quantifying as well irrigation scheduling.This study was conducted purpose determining Maize (SC-701) Scheduling, use leaf temperature north Isfahan, Iran, year 2013,...

Purpose In the past three decades, remote sensing-based models for estimating crop yield have addressed critical problems of general food security, as unavailability grains such rice creates serious worldwide insecurity problems. The main purpose this study was to compare potential time-series Landsat-8 and Sentinel-2 data predict several weeks before harvest on a regional scale. Design/methodology/approach To end, sum normalized difference vegetation index (NDVI)-based created best...

Water is one of the most stable and abundant complexes on nature that can be polluted with natural human factors. Polluted water harmful to health need purify. One economic rapid methods for elements removal displacement metals by biosorption. Two treatments in four replications purpose purifying wastewater Ceratophyllum demersum were designed. The included raw municipal (RMW) treated (TMW). experiment was performed at open air Khorasgan University area 18 days without aeration. Result COD...

Background: The entrance of untreated wastewater or disposal leachate to water resources such as surface water, groundwater irrigation increases the risk contaminant accumulation. Removal deduction concentration is then crucial before entering natural its transfusion directly soil water. Four studies were carried out in a pilot plant evaluate effect zeolite decrease chemical and biological index compost factory leachate. Land treatment was considered main strategy; however, some pounding...

Soil and plants growing in the vicinity of industrial areas display increased concentrations heavy metals give an indication environmental quality. The contamination source for aluminum, iron, nickel lead Botanical garden Mobarakeh Steel Company was recognized by analyzing leaves topsoil two evergreen species: Quercus brantii Ligustrum vulgare . Availability studied elements investigated measuring their total extractable concentration inthe soils. For ensuring air borne these metals, plant...

Abstract The use of municipal wastewater for irrigation needs special management. This is due to the environmental and health hazards. In this study, secondary treated was used in five treatments. These treatments were as follows: furrow with normal water (FN), drip (DI), subsurface 15 cm depth (SDI ), 30 (FW). results showed that application DI SDI sand filters causes a decrease index pollution, including 50.1% BOD 5 , 98.9% total count, 97.6% coliform, 93.2% faecal 57.1% nematode, 81%...

Aims: This research was conducted to study the effects of electrical conductivity (EC) irrigation water and compost on Cadmium (Cd) Zinc (Zn) uptake by sunflower, Helianthus annuus. The transfer Cd Zn from soils close mine, sunflower tissues, interactions between two concerned metals, were also investigated. Materials Methods: For this purpose, 10% weight/weight municipal composts applied raw that randomly collected mine region. Series analyses implemented water, with EC values in range 0,...

Declining water resources, increasing drought period and irrigated area cause a shift to deficit production which is not based on full requirement. This study was conducted investigate the impacts of two different irrigation methods, including traditional (TDI) partial root-zone drying (PRD) use efficiency (WUE) in corn cultivations located at lands close Shahrekord wastewater treatment plant. A factorial design employed, consisted fifteen treatments three replications. The first factor...

Trace element contamination in aquatic ecosystems is one of the most important concerning environmental health. Submerged plants can be used for removal elements. The aim this study was to investigate how Ceratophyllum demersum could affect on wastewater quality recycling reuse other purposes agriculture and industrial fields. In survey, two treatments four replications were designed. included raw municipal (RMW) treated (TMW). experiment performed outdoor Khorasgan University area without...

Petroleum compounds are one of the most frequently encountered pollutants in soils adjacent to oil refineries.Phytoremediation, where feasible, has become a cost-effective alternative physicochemical methods soil remediation.In this study, sorghum (Sorghum bicolor) and barley (Hordeum vulgare) were selected for phytoremediation diminution concentration oil-based contaminants was measured during 90-day period.Contaminated control treatments compared terms root shoot dry weight.Comparisons...

Shortage of irrigation water is a crucial problem in arid and semi-arid regions. Therefore, application wastewater such area seems to be an indispensable solution. The health aspect the should considered by microbial evaluation soil plant irrigated with treated wastewater. In this study several methods were used. Results showed that filtration reduced pollution municipal maximum was surface drip furrow least level total fecal coliform sub-surface at depth 30 cm condition reuse. results...

Strategic planning in turbulent and changing environments is always debt. The aim investigating application of strategic models to a great non-governmental university over Iran. Methodology was R&D two phases (a- comparative research for reviewing experiences other universities through the world b- designing developing comprehensive model relevant fit circumstances team involved key stakeholders like groups managers, staff also graduate student's representatives via Focus Discussion Groups...