Mahboobeh Kiani-Harchegani

Yazd University

Understanding of rainfall-runoff processes in arid and semi-arid regions, such as runoff discharge (Q) and sediment concentration (SC) in hillslopes with different geometries, can offer better insights into hydrological processes. Consequently, considering intra- and inter-storm dynamics of Q and SC during consecutive storms (CSs), on hillslopes of...

Factors involved in hillslope geometry and soil erosion are still under discussion by the scientific community-and one of these factors is microtopography. In this research, the effect of surface roughness (SR) on the soil loss was investigated for different complex hillslope (CHS) systems in terms of plan shapes (convergent, parallel, and divergen...

Accelerated soil erosion is an earth surface process that threats sustainable land management. Among different forms of soil erosion, rills, gullies, and landslides are the most dominant features, which have a considerable contribution in sediment yield at the landscape and catchment scale. Rill erosion may contribute as a significant erosion proce...

This paper aims to test different methods used for assessing the indices of sediment yield to identify hotspots and rank sediment yield hotspots. This process includes the assessment of the Entropy Weighting (EW), Fractal Dimension (FD), Slope Length (SL) gradient, and Sediment Connectivity (SC) methods. The indices at different sub-catchment level...

There is evidence that human activities are affecting global dynamics. The consequences of changes in the duration of the annual seasons and daily temperatures will imply drastic impacts on human and natural ecosystems. However, estimations related to the duration of the seasons considering the daily temperatures are scarce and could help to forese...

هدف از پژوهش حاضر بررسی اثربخشی طرح‌های آبخيزداری انجام پذیرفته در حوضه سد زاینده‌رود در بخش‌های فرسایش خاک، دبی سیلاب و بیلان آب زیرزمینی با توجه به مطالعات و آمار موجود و به روش کتابخانه‌ای بود. در همین راستا مشخص شد که طرح‌های سازه‌ای اجرا شده شامل 493 بند کوتاه آبخیزداری (سنگی ملاتی،خشکه چین و گابیونی) با ارتفاع متوسط 2/1 متر و 14 طرح زیستی در...

Fire is an ecological force that affects three to four percent of the earth's surface annually by altering biogeochemical cycles. The fire effects on nature can have both positive and negative consequences; as in fire-compatible ecosystems, fire is an essential process that releases nutrients, alters competition, and affects the composition of the...

This chapter focused on topographical features as key factors in soil erosion processes with emphasis on the slope and variety of profiles and planes. If there is an accurate understanding between the topographical features and the hydrology processes, it can be useful and efficient in the watershed’s management and soil conservation plans. Accordi...

Soil erosion is one of the most important environmental issues in the world, because it affects soil resources. Using crop or garden residues is an approach to prevent soil loss that acts as a protective layer, in addition to absorbing the kinetic energy of raindrops that can increase the shear strength of the soil surface and reduce erosion. Accor...

In recent years, the occurrence of floods is one of the most important challenges facing in Hamadan city. In the absence/inefficiency of urban drainage systems, rainwater harvesting (RWH) systems as low-impact development (LID) methods can be considered as a measure to reduce the floods. In this study, three scenarios concerning the RWH from the ro...

Soil is one of the main and most important natural resources of the earth. Soil degradation and erosion in addition to direct economic consequences also have severe environmental consequences. Conservation and optimal use of water and soil resources is one of the principles of sustainable development in any country. One of the cheapest and most app...

The need for accurate data and information at the spatial scale to investigate soil loss and sediment production has been of great concern in recent decades. To this end, the establishment of research stations and experimental areas is considered important and necessary. Also, due to the fact that watersheds are not always parallel rectangles, diff...

Soil degradation by water erosion is a serious problem in reducing soil quality. The use of vegetation cover is known as a simple and cost-effective bioengineering tool for the improvement of the physical properties of soil, to control runoff, erosion, and sediment, and to control the stability of hillslopes. Due to the high importance of vegetatio...

Water poverty index (WPI) is widely considered a simple and clear tool to evaluate the effects of combined factors on water shortage and resources stress. In this research, we tried to focus on water tensions in the upstream part of the Karoon basin in Iran for analyzing the water status of the area. For this purpose, the required data were firstly...

To gain a better understanding of the global application of soil erosion prediction models, we comprehensively reviewed relevant peer-reviewed research literature on soil-erosion modelling published between 1994 and 2017. We aimed to identify (i) the processes and models most frequently addressed in the literature, (ii) the regions within which mod...

To gain a better understanding of the global application of soil erosion prediction models, we comprehensively reviewed relevant peer-reviewed research literature on soil-erosion modelling published between 1994 and2017. We aimed to identify (i) the processes and models most frequently addressed in the literature, (ii) the regions within which mode...

Soil erosion can present a major threat to agriculture due to loss of soil, nutrients, and organic carbon. Therefore, soil erosion modelling is one of the steps used to plan suitable soil protection measures and detect erosion hotspots. A bibliometric analysis of this topic can reveal research patterns and soil erosion modelling characteristics tha...

In arid and semi-arid regions such as Iran, groundwater is more important for humans and ecosystems than surface water. Different models of groundwater vulnerability assessment can be used to better manage water resources. The purpose of this study is to evaluate the qualitative vulnerability of groundwater resources in the Birjand Plain aquifer us...

Land degradation is one of the major environmental problems in many countries in the 21st century, and human activities are the most important factor influencing it. The types and processes of Land degradation in the various ecosystems are not similar. Lands in the fragile, arid ecosystems cover about 41 percent of Earth’s surface where 37 percent...

Due to the high costs associated with the control of soil erosion, the precise selection of practical techniques towards this end is a prerequisite for sustainable land management. For the proper application of anti-erosion measures, a good knowledge of the behavior of soil erosion and hydrological properties is required. Research has indicated tha...

Nowadays soil erosion control using different amendments has grown up worldwide. However, the application of transformed materials like biochar has not been adequately studied. In the same vein, the application of biochars produced from waste materials that harm nature, and impose cost to managers and producers is a valuable approach for optimal ut...

Systematic bibliometric investigations are useful to evaluate and compare the scientific impact of journal papers, book chapters and conference proceedings. Such studies allow the detection of emerging research topics, the analyses of cooperation networks, and the collection of in-depth insights into a specific research topic. In the presented work...

In recent years, the shape of slopes has been considered as an important factor in the hydrological processes of watersheds. It is effective in providing correct and efficient management strategies for the watersheds management. If there is a mutual understanding between the shape of the slopes and the hydrological processes and runoff formed by th...

The geometry of hillslopes (plan and profile) affects soil erosion under rainfall-runoff processes. This issue comprises of several factors, which must be identified and assessed if efficient control measures are to be designed. The main aim of the current research was to investigate the impact of surface Roughness Coefficients (RCs) and Complex Hi...

This study aimed to examine flood hazard zoning and assess the role of check dams as effective hydraulic structures in reducing flood hazards. To this end, factors associated with topographic, hydrologic and human characteristics were used to develop indices for flood mapping and assessment. These indices and their components were weighed for flood...

Monitoring and managing floods and sediments are considered major challenges in the sustainable management of watersheds. Hence, an effective layout of the hydraulic structures across channels is considered as a measure to overcome these two challenges. This study was carried out in the Illanlu catchment in the northwest of Hamadan Province, Iran....

خاک به‌عنوان منبع طبيعي، سرمايه ملي و بستر حيات، نقش اساسي در استقرار و رشد جوامع بشري و نيز ساير مخلوقات دارد. خاك، پيکره‌اي طبيعي و پوياست که بر اثر فرآيندها و عوامل خاک‌ساز تشکيل شده و در برگيرنده مواد معدني و آلي است که پوسته خارجي زمين را مي‌پوشاند و گياهان قادر به روييدن در آن مي باشند. با درك عمیق جایگاه منابع خاك کشور و لزوم حفظ و حراست از...

آبخیزها با کارکردهای مختلف هیدرولوژیکی، بوم‌شناختی، اقتصادی و اجتماعی به‌عنوان عرصه فعالیت جوامع انسانی نقش با اهمیتی در کیفیت زندگی انسان‌ها دارند و مدیریت جامع آن‌ها در راستای توسعه پایدار کشورها از اهمیت ویژه‌ای برخوردار است. بر این اساس انتخاب حوزه‌های آبخیز معرف و به‌تبع آن آبخیزهای زوجی برای پایش و ارزیابی فعالیت‌های مناسب و متناسب در راستای...

Naybandan watershed is one of the protected areas of the Environmental Protection Organization with an area of 15169.9 km2 in Tabas city, Yazd province. In the present study, water resources status considering the importance of the water resources conservation and management in different ecosystems of Naybandan watershed was studied by field survey...

Land degradation means a significant reduction in the productive capacity of the land and it is a complex process. Tackling land degradation challenges in the 21st century requires a new understanding of the complex interactions between land systems and human societies. Specifically, the sustainability of the land systems cannot be achieved without...

Increasing knowledge and evaluation the soil quality in the different ecosystems is important to improve sustainable land use management and to decrease land degradation. Therefore, the present study was planned to analyses the effects of different land use (irrigated farms, rain fed farms, orchards and rangelands), texture and topography on soil q...

Quantification of runoff and soil loss variabilitities are important aspects of hydrological processes. The present study was designed to evaluate the effect of six consecutive storms on variability of descriptive characteristics of runoff and soil loss under different rainfall intensities. To achieve the objectives, a set of laboratory experiments...

Quantification of runoff and soil loss variabilitities are important aspects of hydrological processes. The present study was designed to evaluate the effect of six consecutive storms on variability of descriptive characteristics of runoff and soil loss under different rainfall intensities. To achieve the objectives, a set of laboratory experiments...

Different land uses affect physical, chemical and biological properties of the soil and hence change the quality of soil. However, limited researches have been conducted in due course on the basis of high resolution field surveying. Therefore, the current study aimed to evaluate the effects of land use types on different variables of the Shazand Wa...

Soil erosion is a serious environmental, social and economic problem. It not only causes severe land degradation and soil loss, but also threatens the stability and health of the society and, in general, its sustainable development. Soil erosion is related with different soil characteristics, measurements and its calculations. The soil erodibility...

Assessing impacts of different factors on soil erosion is crucial for developing management of watershed resources. The present study aimed at determining the effect of rainfall intensity (RI) and slope steepness (SS) on sediments subjected to raindrop detachment (RD), transport by raindrop splash (ST), raindrop-induced flow transport (RIFT) and tr...

In this paper, we present and analyze a novel global database of soil infiltration measurements, the Soil Water Infiltration Global (SWIG) database. In total, 5023 infiltration curves were collected across all continents in the SWIG database. These data were either provided and quality checked by the scientists who performed the experiments or they...

In this paper, we present and analyze a global database of soil infiltration measurements, the Soil Water Infiltration Global (SWIG) database, for the first time. In total, 5023 infiltration curves were collected across all continents in the SWIG database. These data were either provided and quality checked by the scientists who performed the exper...

Studying sediment graph and sediment rating loops are as important and appropriate tools in analyzing sediment behavior with discharge changes and understanding the controlling role of discharge in sediment production during storms respectively. Therefore investigating the sediment behavior and variations in the form of sediment rating loops is so...

Estimates of spatio-temporal variations of sediment concentration with discharge are needed for the assessment of aquatic ecosystems, estimates of contaminant export from catchments. The relationship between discharge and sediment concentration is available for different watersheds. However, elucidating flow discharge-soil loss-contribution area re...

Download Abstract In this paper, we present and analyze a global database of soil infiltration measurements, the Soil Water Infiltration Global (SWIG) database, for the first time. In total, 5023 infiltration curves were collected across all continents in the SWIG database. These data were either provided and quality checked by the scientists who...

The effects of different local slopes (i.e., 5, 15 and 25%) and rainfall intensities (i.e., 30, 60 and 90 mmh-1 with respective durations 30, 15 and 10 min), but identical runoff depth (15 mm) on the Grain Size Distribution (GSD) of sediment in comparison with the original soil GSD was discussed. The sediment quantification was carried out by raind...

Monitoring the sediment transport behavior induced by different interventions, particularly sand mining from rivers, is needed to adaptively manage the watersheds. The particle size distribution of the suspended sediment in up and downstream of rivers is one of the main indicators to know about fate of sediments, which may be varied in different co...

Investigation of sediment particle size distribution (SPSD) was considered as a new science to investigate the SPSD interactions in fluvial systems by hydrologists, geomorphologists and geochemists since 1980s. Accurate understanding of complexities of SPSD behavior in different environments will help overcoming management problems in soil and wate...

This is obvious that no erosion occurs unless detachment takes place first either by raindrop or runoff. The Raindrop-Impact-Induced Erosion (RIIE) occurs when detachment results by raindrop energy. Towards this attempt, a set of laboratorial experiments were scheduled for effects of consecutive storms on RIIE components (i.e. upward splash, downwa...

Investigation of inter-storm variability of runoff and soil loss characteristics helps experts and decision makes better understanding of hydrological response. However, this important has been less considered in the world, especially developing countries. The present study was therefore planned to evaluate the effect of different rainfall intensit...

Runoff generation is very imperative, since it keeps not only water out of access of fauna and flora at the upland areas, but it also altered the landscape by the action of soil erosion. In addition, runoff can transport organic materials and heavy metals and pollutes the water bodies. Therefore, water and soil conservation measures are advised to...

Multivariate statistical techniques, such as cluster analysis (CA), principal component analysis (PCA), factor analysis (FA), were applied for the evaluation of temporal/spatial variations and the interpretation of a large complex water quality data set of the Karoon river basin, generated during 13 years (1994-2006) monitoring of 13 parameters at...

Splash detachment and transport of soil particles by raindrops are the initiating mechanisms of soil erosion by water. The size distribution of splashed particles is very important and effective in the rate of other erosion processes. However, this important issue has been less considered. Therefore, the present study investigated individual and in...

Splash detachment and transport of soil particles by raindrops impact on the soil surface are the initiating mechanisms of water erosion. However, mechanistical analysis of different effective factors has been less taken into account. The present study has been therefore formulated for comparative analysis of effective intensities and slopes on Rai...

Water erosion comprises major processes of the detachment, enterinment, transport and deposition. Sediment washed out from the watershed is composed of different particle sizes. The particle size distribution of sediment is a significant factor influencing detachment and transport processes. However, the changeability variables of particle size dis...

Studying dynamics, transportation and deposition of suspended sediment and its interaction with other ecosystem components plays an important role in understanding a watershed system. The present study aimed to assess temporal and spatial variations of relationship between suspended sediment concentration and some of contaminants viz. cadmium, chro...

Studying dynamics, transportation and deposition of suspended sediment and its interaction with other ecosystem components plays an important role in understanding a watershed system. The present study aimed to assess temporal and spatial variations of relationship between suspended sediment concentration and some of contaminants viz. cadmium, chro...

Data acquisition on effects of type, amount and transportation processes of sediment load at different temporal and spatial scales due to sand mining activities is essential for proper and better management of sand harvesting. Nevertheless, different aspects of effects of sand mining activities on sediment load changeability at different temporal a...

This paper aims at assessing the feasibility of suspended sediment concentration (SSC) estimation by using predictor variables of heavy metal concentration (HMC, viz., iron, chromium, zinc and nickel) transported in solution and solid. The study was conducted in the Research and Educational Forest Watershed of the Tarbiat Modares University (Kojour...

Abstract Soil erosion is one of the most important issues in developing countries. Accomplishment of soil conservation and sediment control strategies is needed for reducing the effects of this phenomenon. Therefore, awareness of suspended sediment content transported by rivers and in spatial scales is so necessary. Hence, the present study was con...

The particle size distribution (PSD) of suspended sediment has fundamental importance in understanding its role in a variety of environmental processes, modeling the transport of sediment and sediment-associated contaminants including heavy metals, nutrients, radionuclide and synthetic organic compounds in river systems. This paper aimed to assess...

Soil erosion causes sediments to be detached from their source materials and transported as suspended particles. The present study was conducted to evaluate the effects of sand exploitation on the distribution of suspended sediments in the Educational and Research Forest Watershed of Tarbiat Modares University, which comprises approximately 50,000...

Abstract Studying temporal variation of suspended sediment graph is an important tool in soil and water resources management of a watershed. The present study was conducted in Educational and Research Forest Watershed of Tarbiat Modares University in Mazandaran Province, Iran, with an area of some 50 130 ha to investigate the monthly variations of...

Awareness of the complex behavior and variability of suspended sediment particle size is one of the most important factors in the modeling of sediment transport and deposition. Therefore the present study aimed to investigate influence of discharge competence on suspended sediment particle size distribution changes in Kojour River from Forest Water...

Different environmental aspects of miscellaneous ecosystems are being presently supposed as important issues to policy makers, managers and exploiters of natural resources. However, temporal variations of determinant factors and particularly the similarity of their trends have not been taken into account. Towards this attempt, the present study aim...

This present study was conducted to determine particle size characteristics of suspended sediments transported by base and flood-flows in the Kojur River in Kojur forest watershed with an area of 50000 ha. Sediment samples were analyzed based on Stokes’ law using a modified pipette and applying the GRADISTAT software. Results showed 81.1, 3.4 and 1...