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Surveying Riparian Zone and Water Quality of Jajrud River

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Surveying Riparian Zone and Water Quality of Jajrud River Iranian Journal of Aquatic Animal Health 6(1) 29-43 2020 Surveying riparian zone and water quality of Jajrud River R. Ameri Siahouei 1, a, M. Zaeimdar1, a, R. Moogouei1*, S. A. Jozi 2 1 Department of Environmental Management, North Tehran Branch, Islamic Azad University, Tehran, Iran 2 Department of Environment, North Tehran Branch, Islamic Azad University, Tehran, Iran a These are equally contributed to assign the manuscript as first author Received: June 2020 Accepted: August 2020 Abstract In this paper the riparian zones and water Surveying riparian zones shows that a total of quality of Jajrud River were examined. Human 168 ha of areas around the river need to be and economic factors affecting the river rehabilitated to restore vegetation that was ecosystem have been assessed for ten years. effective in reducing and controlling non-point The evaluation results show that the total water pollution. exploiters of agriculture, forestry and fisheries, Keywords: Jajrud River, Plants; water quality 12.02%, the number of horticultural exploitation is 15.75%, the number of Introduction beekeeping exploitation is 18.01%, the number Riparian zones are habitats and plant of active agricultural cooperatives 50%, the communities around riverbeds and include number of issued building permits has hydrophilic plants. Around the rivers and increased by 270.45%, the number of active lakes, the transition zone includes the service cooperatives covered by the General biological community along the rivers and Directorate of Cooperatives has increased by lakes. These communities are affected by 56.25%, the construction of freeways, their fresh water (Griggs, 2009; Chen et al., highways and main roads has increased by 2019). They are usually narrow and Downloaded from ijaah.ir at 2:09 +0330 on Saturday October 2nd 2021 [ DOI: 10.29252/ijaah.6.1.29 ] 89.69%. Examination of qualitative parameters fragmented and therefore vulnerable. In fact, including nitrate, electrical conductivity, total they are part of the land that directly affects dissolved solids, BOD5, COD, pH, phosphate or is affected by rivers and streams. These and ammonium shows that BOD5, TDS and areas include the immediate banks of rivers, NH4 exceeds 14 times, 16 times and 17 times including bed, margins and surrounding more than allowable limits respectively. lands, and floodplains. The width of riparian Correspondence R. Moogouei, Department of zones depends on the type of river and its Environmental Management, North Tehran watershed. So the level that is affected and Branch, Islamic Azad University, Tehran, Iran (e- needs to be managed is different. The size of mail: [email protected]). the riparian vegetation along the river 29 Ameri Siahouei et al., Surveying riparian zone and water quality of Jajrud River changes over time. These ecosystems have a 2018). Jajrud River is located in Shemiranat high biodiversity and are the source of many region in Tehran province. Shemiranat region ecosystem services. These areas, with a has different uses that have compatible and sponge-like function, are effective in adverse effects and consequences on the reducing water flow during flooding and region's ecosystem. According to the latest absorbing water pollutants (Betz et al., 2018). statistics published by the National Statistics The management and restoration of riparian Center of Iran, the population of Shemiranat zones affect the aquatic animal health in two city has grown by 23.4% between 2007 and ways. First: Direct effect through physical 2017. An examination of the situation in the protection of river canal and conservation of region in terms of economic and human aquatic habitat. Second: Indirect effect activities in the last ten years shows that the through phytoremediation of pollutants from total number of farmers in the agricultural, river water and increasing water quality. The forestry and fisheries sectors has increased by health of aquatic animals depends on the 12.02%. The number of horticultural quality of the water. Vegetation around the exploitation is 15.75%, the number of river or riparian zone plays an important role beekeeping exploitation is 18.1%, the number in the physical and chemical quality of water. of active agricultural cooperatives, 50%, the Therefore, to maintain the ecological balance number of issued building permits, 270.45%, of the river, vegetation and animals are and the number of active service cooperatives interdependent. Management and restoration under the coverage of the General Directorate of vegetation around the river preserves the of Cooperatives has increased by 56.25%. geomorphological features and health of the These exploits, if unsustainable and river that directly affects the health of aquatic incompatible with the environment, affect the animals. Aquatic habitats for spawning and quality of river water as well as the rearing larvae are protected. With the surrounding vegetation. Construction of restoration of vegetation around the river and freeways, highways, main roads and side the physical protection of the canal and the roads has increased by 89.69% (Statistical Downloaded from ijaah.ir at 2:09 +0330 on Saturday October 2nd 2021 [ DOI: 10.29252/ijaah.6.1.29 ] riverbed and the preservation of habitats and Yearbook of Iran 2019). An increase of water quality, the endangered aquatic almost 90% in the construction of all kinds of animals’ population will increase. In many roads, in addition to the destruction of natural parts of the country, these ecosystems need habitats, is accompanied by an increase in all management so that their performance in kinds of pollution and waste. An increase of water purification is not disrupted. One of the more than 270% in the issuance of building services of these ecosystems is the control of permits will affect the appearance and use of non-point and point pollution of rivers, which the area. At the same time, some human has become a major problem in many activities and various economic sectors have industrialized countries (Gunawardena et al., seen negative growth in the last ten years. 30 Iranian Journal of Aquatic Animal Health Household electricity subscribers decreased and chemical parameters between 1391 and by 77.84% and the change in electricity sales 1398 in 5 sampling stations have been per MWh unit was estimated at 85.98%. studied. Industrial electricity subscribers have also experienced a growth of 12.5%. Water sales, Material and Method number of fuel sales stations, light livestock Jajrud water catchment with an area of 1892 breeding, heavy livestock breeding, poultry Km2 with coordinates of 35°:25ʺ to 36° farming, number of greenhouse exploitation, degrees northen latitude and 51°:23ʺ to 52°: number of agricultural exploitation 6ʺ eastern longitude located in the eastern operations, have had negative growth part of Tehran (Behbahaninia and Salmasi respectively, - 39.72%, - 23.80%, - 35.55%, - 2019). The main tributary of this river 76.02%, - 59.39%, - 31.57%, - 65.37%. originates from the Kharsang Mountain Increasing and decreasing these human and located in the northeast of Tehran and its economic uses, in addition to the length is 140 km. Then, after passing through consequences of climate change, has several Fasham village, and Oshan, it changes its effects on the region (Hashempour et al., direction to the southeast and enters Latian 2020). These activities have adverse effects Lake after passing Rudak and Lashgarak. on the riparian zones. Riparian zones play a Then it flows towards Parchin and enters significant role in purifying various water Varamin plain through Sharifabad canal. The pollutants (Moogouei et al., 2018; Moogouei branches of Jajrud River include Ahar, Afjeh, and Chen 2020). The aim of this study was to Omame, Oshan, Khairrudbar, Damavand, investigate the area of polygons of riparian Rote, Shemshak, Keresht, Garmabdar, Lalon zone vegetation along the Jajrud River and and Nasrabad. According to the statistics areas without vegetation, from Sarband Sar to recorded in Shemiranat city in annual weather the entrance of Latian Dam using satellite report in 2019, in 1396, the average air images. Satellite images are a suitable tool for temperature has changed from 5.2°C to environmental and agricultural modeling Downloaded from ijaah.ir at 2:09 +0330 on Saturday October 2nd 2021 [ DOI: 10.29252/ijaah.6.1.29 ] 28.1°C and monthly rainfall has changed (Liang et al., 2018; Zhang et al., 2020). In from 0 to 109.5 mm. Relative humidity has this study, Landsat / Copernicus satellite changed from 9% to 70%. images measured the area of polygons without certain vegetation and the area of Introducing marginal plant communities polygons that need of restoration. Also, the The list of plants that live in or near the river water quality of the river in terms of physical is shown in the table 1. 31 Ameri Siahouei et al., Surveying riparian zone and water quality of Jajrud River Table 1. List of plants in the Jajrud River for the riparian zone restoration program (Khorasani, 2001) Next to the Inside the Next to Inside the Scientific Name Scientific Name water water the water water Nasturtium officinalis * Carex spp. * Calamagrostis pseudoghragmites * Sisymbrium irio * Mentha aquatica * Crambe kotschyanus * Lythrum salicaria * Holosteum umbellatum * Phragmites australis * Chellidonium majus * Typha australis * Rumex crispus * Catabrosa aquatica * Mentha longifolia * Zanichelia palustris * Agropyron repens * Callitriche palustris * Anagalis coerulea * Juncus inflexous *
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