ارزيابي هيدروژئوشيميايي، كيفيت آب زيرزميني و غلظت ارسنيك دشت سيرجان با استفاده از نرم افزار هايGIS وAqQa

Hydrogeochemical evaluation, groundwater quality and arsenic concentration of Sirjan plain using GIS and AqQa softwares

ﺑﺮرﺳﯽ ﮐﯿﻔﯿﺖ آب ﮔﺎﻣﯽ ﻣﻬﻢ در ﺟﻬﺖ اﺳﺘﻔﺎده ﺑﻬﯿﻨﻪ و ﻣﻨﺎﺳﺐ از ﻣﻨﺎﺑﻊ آب ﺑﺮاي ﺷﺮب و ﻫﻤﭽﻨﯿﻦ اﻧﺘﺨﺎب اﻟﮕﻮي ﮐﺸﺖ ﻣﻨﺎﺳﺐ و ﺳﺎزﮔﺎر ﺑﺎ ﮐﯿﻔﯿﺖ آب اﺳﺖ. از اﯾﻦ رو ﺿﺮورت ﻣﻄﺎﻟﻌﻪ وﯾﮋﮔﯽﻫﺎي ﮐﯿﻔﯽ آب در ﺑﺮﻧﺎﻣﻪﻫﺎي ﻣﺪﯾﺮﯾﺘﯽ ﻣﻨﺎﺑﻊ آب ﺑﻪ ﺷﺪت ﻣﻮرد ﺗﻮﺟﻪ ﻗﺮار ﮔﺮﻓﺘﻪ اﺳﺖ. در اﯾﻦ ﻣﻄﺎﻟﻌﻪ، ﺑﻪ ﻣﻨﻈﻮر ﺑﺮرﺳﯽ ﮐﯿﻔﯿﺖ آب دﺷﺖ ﺳﯿﺮﺟﺎن، دادهﻫﺎي ﮐﯿﻔﯿﺖ آب، ﮐﻪ در ﺳﺎﻟﻬﺎي 81 ﺗﺎ 94 ﺟﻤﻊ آوري ﺷﺪه ﺑﻮدﻧﺪ، ﺗﻮﺳﻂ ﻧﺮم اﻓﺰارﻫﺎي AqQA و SPSS ﻣﻮرد ﺗﺠﺰﯾﻪ وﺗﺤﻠﯿﻞ ﻗﺮار ﮔﺮﻓﺘﻨﺪ و ﺳﭙﺲ ﺑﻪ ﮐﻤﮏ ﻧﻤﻮدارﻫﺎي ﺷﻮﻟﺮ، وﯾﻠﮑﺎﮐﺲ و اﺳﺘﯿﻒ ﻣﻮرد ﺑﺮرﺳﯽ و ارزﯾﺎﺑﯽ ﻗﺮار ﮔﺮﻓﺘﻨﺪ، در ﻣﺮﺣﻠﻪ ﺑﻌﺪ دادهﻫﺎي ﺳﺎل 94در ﺳﺎﻣﺎﻧﻪ اﻃﻼﻋﺎت ﺟﻐﺮاﻓﯿﺎﯾﯽGIS)( ﺑﺎ اﺳﺘﻔﺎده از روش درون ﯾﺎﺑﯽIDW)( ﺟﻬﺖ ﺗﻬﯿﻪ ﻧﻘﺸﻪﻫﺎي ﭘﻬﻨﻪﺑﻨﺪي ﮐﯿﻔﯿﺖ آب اﺳﺘﻔﺎده ﮔﺮدﯾﺪ. ﻧﺘﺎﯾﺞ ﺗﺠﺰﯾﻪ و ﺗﺤﻠﯿﻞ ﮐﯿﻔﯽ آب ﻧﺸﺎن دادﻧﺪ ﻧﻤﻮدار ﭘﺎﯾﭙﺮآﺑﻬﺎي زﯾﺮزﻣﯿﻨﯽ ﻣﻨﻄﻘﻪ ﻣﻮرد ﻣﻄﺎﻟﻌﻪ داراي رﺧﺴﺎره ﻏﺎﻟﺐ Na- Cl ﺑﻮده و در ﮔﺮوه آﺑﻬﺎي ﺷﻮر ﻗﺮار ﻣﯽ ﮔﯿﺮد، ﺑﺮاﺳﺎس ﻧﻤﻮدار وﯾﻠﮑﺎﮐﺲ آب ﮐﺸﺎورزي ﺑﻄﻮر ﻏﺎﻟﺐ در ﮔﺮوه آب ﺷﻮر و ﺧﯿﻠﯽ ﺷﻮر)C3 ,C4(، ﺑﺎ ﺗﻮﺟﻪ ﺑﻪ ﻧﻤﻮدار ﺷﻮﻟﺮ آب ﺷﺮب درﮐﯿﻔﯿﺖ ﻣﺘﻮﺳﻂ ﺗﺎ ﮐﺎﻣﻼً ﻧﺎﻣﻄﺒﻮع و ﺑﺮاﺳﺎس ﻧﻤﻮدار اﺳﺘﯿﻒ آب ﻫﺎي زﯾﺮزﻣﯿﻨﯽ در ﺗﯿﭗ ﮐﻠﺮﯾﺪ ﺳﺪﯾﻢ و آب ﮐﻠﺮوره ﻗﺮار دارﻧﺪ. ﻏﻠﻈﺖ ارﺳﻨﯿﮏ در ﺑﺴﯿﺎري از ﻣﻨﺎﻃﻖ اﯾﻦ دﺷﺖ ﺑﺎﻻي ﺣﺪ اﺳﺘﺎﻧﺪارد اﺳﺖ داده ﻫﺎي ﻣﻄﺎﻟﻌﻪ ﺣﺎﺿﺮ ﻧﺸﺎن ﻣﯽدﻫﺪ ﯾﮑﯽ از ﻣﺸﮑﻼت ﻣﻨﺎﺑﻊ آﺑﯽ در دﺷﺖ ﺳﯿﺮﺟﺎن ﻣﻘﺪار ﺑﺎﻻي ﻧﻤﮏ و ﻣﻮاد ﻣﺤﻠﻮل ﺑﻮده، ﮐﻪ ﻧﺸﺎن دﻫﻨﺪه ﺗﺎﺛﯿﺮ ﺑﺴﺰاي ﺳﺎزﻧﺪﻫﺎي زﻣﯿﻦﺷﻨﺎﺳﯽ )ﺗﺒﺨﯿﺮي( ﺑﺮ ﻣﻨﺎﺑﻊ آب زﯾﺮزﻣﯿﻨﯽ و ﮐﺎﻫﺶ ﮐﯿﻔﯿﺖ ﻣﻨﺎﺑﻊ آب اﺳﺖ.

Water quality assessment is an important step for optimal and proper use of water resources for drinking and selection of suitable and consistent water quality patterns. Therefore, the necessity of studying water qualitycharacteristics in water resource management programs has been highly considered. in this study, the water quality dada of Sirjan Plain, were gathered water quality data from 2002 to 2015, were analyzed by AqQA and SPSS software, and then evaluated using Schuler,Wilcox, and Stiff charts,in the next step by the data 2015 from(GIS) system,Interpolation method(IDW)was used to provide water quality zoning maps. The analysis results showed that the water quality, The groundwater piper diagram of the study area has the dominant Na-Cl facies and is grouped to saline waters. According to the Wilcox chart, agricultural water is predominantly saline and highly saline (C3 ,C4), According to the Schuler diagram, drinking water is of medium to completely unpleasant quality, an‎d in terms of stiff diagrams, groundwater is in the type of sodium chloride and chlorinated water. The concentration of arsenic in many areas of this plain is above the standard .The data of the present study show One of the problems of water resources in Sirjan plain is the high amount of salt and soluble substances, Which shows the great influence of geological formations (evaporation) on groundwater resources and reducing the quality of water resources.