Playa

Open Access Article

1 - Analysing the development of effective natural factors warmness, case and cover the hole edge of the desert Haj Aligholi
Saeid Kamyabi Mohammadali Rajaei Rizi Rahim Yousefizadeh Hamidreza Maleki

Water is life resource for living creatures especially human being. Water is the first andnecessary toop for industrial development the base for agricultural production .if the mater ofwater and soil conservation be considered systematically and in the wide spread scale More

Water is life resource for living creatures especially human being. Water is the first andnecessary toop for industrial development the base for agricultural production .if the mater ofwater and soil conservation be considered systematically and in the wide spread scale, in factthe consistency of natural environment is fulfilled (rajaei 1382).The resource area is locatedbetween 50 35 to 26 36 of north latitude and 12 54 to 46 54 north longitude which reachesfrom north to alborz mountain frome east to moladeh village, from west to damghan city andfrom sout to hajali gholi playa . in this area the following villages are located , mehmandoost,dehmolla, kalati molla, forat,zarrin abad mehdi abad, abbas abad,vamerzan, bagh, jazan,heidarabad and haji abad which contain a population about 62000 person including damghancity.the main occupation of population of this region is gardening.The disaster of underground water table falling , salinization of water,increase of demand andregion potential for increasing cultivating lands needs a full study for providing sustainablesituation and is one of the most necessary need of the ragion. In order to reach to this aim allgeographical,natural and especially geomorphology agents of region were strictly and in thefield , using GIS hardware were studied to find the role of them on water resources of this areawhere is one of the centers of human activities in the field of agriculture . the results show thatthe geomorphology of the region including tall mountains, affecting on the amount of rainfall,also tectonized limestone formation, have an important role on water provision of the region,which with wide plainheads have the principle role oo feeding underground tables. Manuscript profile

Open Access Article

2 - Road Construction and Geomorphic Instability in Deserts
سیدرضا Hosseinzadeh

Vest parts of the central and eastern of Iran are covered by mountain basin-rangedeserts. These deserts have developed during the quaternary alternating between dryand wet climatologically conditions, and now that earth is going through aninterglacial age, they are pass More

Vest parts of the central and eastern of Iran are covered by mountain basin-rangedeserts. These deserts have developed during the quaternary alternating between dryand wet climatologically conditions, and now that earth is going through aninterglacial age, they are passing through a dry period. In such conditions, when thedesert landforms seem to be stabilized for short periods; rapid changes take place indesert geomorphic systems due to human-induced changes in the environment.Road construction has a great impact in deserts than the other human activities. Thisarticle, using air photos and satellite images and, particularly, field data, discusses theeffect of road construction on geomorphic instability of alluvial fan surfaces, playa anddesert pavements. The results show that:1. Road construction operations carried out on the surface of dry alluvial fans changethe equilibrium profile of main and secondary channels, resulting in intense verticalerosion;2. Road construction carried out in playa environments disrupt the balance of waterand sediments of surface streams and the terminal basin, bringing about changes inlandform boundaries.3. Road construction operations carried out on desert pavements in the resumption ofdeserts, causing wind deflation. Manuscript profile

Open Access Article

3 - The Geomorphology of Darangir playa
R. Noujavan H. Sadough

Every kind of Geomorphological Landscapes has a basic roll in regionaldevelopment.In Yazd province using every kind of land use projects withought consideringplaya's landscape can't Complot the chain of it's development and Constraction,because. The playa's landscape is More

Every kind of Geomorphological Landscapes has a basic roll in regionaldevelopment.In Yazd province using every kind of land use projects withought consideringplaya's landscape can't Complot the chain of it's development and Constraction,because. The playa's landscape is one of the basic. Units of morphotectonic. In thisprovince. (Siah Kooh playa – Abar kooh playa Daranjir- Harat and marvast playa's andSaghand playa and….)Finding away for using, Landuse projects has a special roll in regional developmentAnd researching and recognizing this landscapes is one of the basic part of landuseproject in this province.Among of these playa's , Daranjir or bafgh playa is the thired playa (From the pointof area viwes) which it's shape like a hole (North – west to south – east).It's placed between kharanagh and bafgh. Which is in east of Yazd province.In this paper. Which is provide in base of Analytical Methodes and using a numberof digital dataes, in GIS Frame work, We can recognized different geomorphologicalaspects of this region and it's potential. In five surfaces (Convex, Concave – traces andun sustainability wind surfaces) and Conclude that: Knowing the paleo and dinamysmgeomorphology Of this region.Has an important roll in Document of Development sterategy Frame work .Because of the result of this researches. Salinization process is active in Daranjirplaya now (We can see it's effects on different part of playa).There are some Evidence of active Tectonic in the south – west of this region andanalysis of drainages show anticidence conception too.Because of above Conclusion and several other limitations we can say this region isnot suitable for development in tourism Field.The main axes of development in this area can be concentrated on mine activitiesespecially. Rare metals element which is deposite in playa Manuscript profile

Open Access Article

4 - Geochemical and Sedimentary Changes of the Mighan Playa in Arak, Iran
Feridon Ghadimi Mohammad Ghomi

The Mighan Playa is the largest playa in Markazi Province. Sedimentary and soil structures show that during all phases the playa was ephemeral. The duration and frequency of flooding varied causing variations in the relative amounts of accumulation, and soil formation. More

The Mighan Playa is the largest playa in Markazi Province. Sedimentary and soil structures show that during all phases the playa was ephemeral. The duration and frequency of flooding varied causing variations in the relative amounts of accumulation, and soil formation. The clastic fraction of the playa sediment consists of quartz, mica and chlorite while the non-clastic evaporite fraction is dominated by gypsum, calcite, glauberite, thenardite and halite. Using the principle of chemical divides, such variations in mineralogy have been explained in terms of a change in brine chemistry from Na-Ca-Mg-SO4-Cl to Na-SO4-Cl type. It is also suggested that at an earlier stage, Mighan playa brine underwent evaporation under the conditions of Ca>alkalinity whereas in more recent times, the evaporite mineralogy has developed with alkalinity>Ca. The shallow depth cores are divided into distinct geochemical units based on elemental ratios. Units I and III reflect high chemical weathering whereas the middle unit, II, indicates relatively low weathering and enrichment in evaporates Manuscript profile

Open Access Article

5 - Investigating the potential of geographic conditions and geomorphology in the storage of water resources using GIS (The studied area is Haj Aligholi Desert)
rahim yosfizadeh

Water is life  resource  for living creatures especially  human  being .Water is the first and necessary toop for industrial development the base for agricultural production .if the mater of water and soil conservation be considered systematically an More

Water is life  resource  for living creatures especially  human  being .Water is the first and necessary toop for industrial development the base for agricultural production .if the mater of water and soil conservation be considered systematically and in the wide spread scale, in fact the consistency of natural environment is fulfilled (rajaei 1382).The resource area is located between 50 35 to 26 36 of north  latitude and 12 54 to 46 54 north longitude which reaches from north to alborz mountain frome east to moladeh village, from west to damghan city and from sout to hajaligholi playa . in this area the following villages are located , mehmandoost, dehmolla, kalatimolla, forat,zarrinabadmehdiabad,abbasabadT,vamerzan,bagh,jazan,heidarabad and haji abad which contain a population about 62000 person including damghancity. the main occupation of population of this region is gardening. The disaster of underground water table falling , Stalinization of water, increase of demand and region potential for increasing cultivating lands needs a full study for providing sustainable situation and is one of the most necessary need of the ragion. In order to reach to this aim all geographical, natural and especially geomorphology agents of region were strictly and in the field , using GIS hardware were studied to find the role of them on water resources of this area where is one of the centers of human activities in the field of agriculture . the results show that the geomorphology of the region including tall mountains, affecting on the amount of rainfall, also tectonized limestone formation, have an important role on water provision of the region, which with wide plainheads have the principle role oo feeding underground tables. Manuscript profile

Open Access Article

6 - Extraction of surface water zones of seasonal lake Jazmourian using remote sensing indicators.
Mojtaba Solimani Sardo Zohreh Ebrahimi Mehdi Zarei

Water resources are one of the most important components of land life and sustainable development. In the present study, the study of time series changes in the area of Jazmourian Playa water areas, using the surface reflection data of Landsat 8 satellite from 2013 to More

Water resources are one of the most important components of land life and sustainable development. In the present study, the study of time series changes in the area of Jazmourian Playa water areas, using the surface reflection data of Landsat 8 satellite from 2013 to 2019, was considered and the Modified Normalized Water Difference Index (MNDWI) was used to separate the water areas on the images. Then the trend of changes in the area of water areas was estimated. All of these processes and satellite image analysis were performed in the Google Earth Engine software environment, which is a web and open source system for performing spectral and radiometric analyzes on satellite images. ArcGIS 10.5 software was also used to prepare spatial maps. . Findings showed that the area of the seasonal lake of Jazmourian Lake is estimated to be 21426 Km based on MNDWI index, approximately 1515 Km based on automatic water extraction index (AWEI) and 1610 Km2 based on water absorption ratio (WRI) index. On the other hand, the analysis of surface water production of Landsat images showed that the highest rate of change was related to temporary seasonal and new seasonal water zones, so that changes in temporary seasonal zones occupied an area of about 11245 km2 and new seasonal surface zones about 35355 km2. Is. Jazmourian plain water intake is related to the occurrence of seasonal floods and increased rainfall in the basin, so that a high correlation (R2 = 0.89) between the annual rainfall of the basin and the increase in the area of water areas resulting from the MNDWI index has been observed. Manuscript profile

Open Access Article

7 - An investigation on the quantitative effect of the 2003 Bam earthquake on Bam plain aquifer
Gholamreza Lashkaripour Hadi Salari

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Open Access Article

8 - Statistical Analysis of the Hydrogeochemical Evolution of Groundwater in Alluvial Aquifer of Arak Mighan Playa, Markazi Province, Iran
F Ghadimi M Ghomi

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Open Access Article

9 - Determination and Comparison of Preference Value for Five Halophyte Species in the Marginal Rangeland of Salt Lake in Aran and Bidgol Region, Kshan, Iran
Reza Dehghani Bidgoli

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Open Access Article

10 - The Impact of Different Habitat Conditions on the Variability of Amino acids and minerals in Haloxylon salicornicum (Moq.) Bunge ex Boiss.
mahdieh tajamolian hamid sodaeizadeh Asghar Mosleh arany mohammad hadi rad mohammadali hakimzadeh

Soil salinity is one of the most important factors affecting plant growth. Haloxylon salicornicum (Moq.) Bunge ex Boiss., as a salt tolerant specie grows in a wide range of desert lands and has a significant impact on wind erosion control. The present study investigated More

Soil salinity is one of the most important factors affecting plant growth. Haloxylon salicornicum (Moq.) Bunge ex Boiss., as a salt tolerant specie grows in a wide range of desert lands and has a significant impact on wind erosion control. The present study investigated the effects of different soil conditions (soil saline and non-saline-sodic playa -sand), on amino acids and minerals of H. salicornicum. Sampling was done Completely randomized design with three replications. The results showed that in both habitats, serine has the highest contribution to the formation of the content of total amino acids of the H. salicornicum .The content of total amino acid in the two regions was significantly different at 1% level (p <0.01), the highest amounts of total amino acid (414.75 ppM) measured in sandy habitat and lowest amount (268.38 ppM) measured playa habitat. Sparic acid, glutamate, serine, glycine, alanine, tyrosine, valine, methionine in the sandy habitat was more than Playa. While glutamine and threonine in Playa had a higher content. Mineral analysis showed that the highest amount of phosphorus, sodium, chlorine, iron, manganese, zinc and copper in playa and most of nitrogen were in sandy area. Accumulation of ions such as sodium in plant tissues in playa is the most important physiological response of H. salicornicum to the regulation of osmotic potential. The role of osmolites such as Amine acids are considered at a later stage. Manuscript profile

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