مدیریت زیستی فرسایش خاک (مطالعه موردی: حوزه آبخیز گاوشان،‌ استان کرمانشاه)

نوع مقاله : مقالات پژوهشی

نویسندگان

1 گروه مهندسی آبخیزداری، دانشکده منابع طبیعی و علوم دریایی، دانشگاه تربیت مدرس، نور، مازندران، ایران

2 گروه مهندسی آبخیزداری، دانشکده منابع طبیعی و علوم دریایی، دانشگاه تربیت مدرس

3 گروه مهندسی منابع طبیعی، دانشگاه رازی کرمانشاه

4 اداره منابع طبیعی کرمانشاه و سنقر، کرمانشاه

5 دانش‌آموخته کارشناسی خاک‌شناسی دانشگاه رازی کرمانشاه، کرمانشاه

چکیده

حفظ منابع آب‌وخاک با استفاده از روش‌های سازه‌ای و زیستی امکان‌پذیر است. حال با توجه به اینکه روش‌های زیستی مبتنی بر شرایط حاکم بر بوم‌سازگان است،‌ اهمیت ویژه‌ای در مهار فرسایش خاک در مراحل ابتدایی دارد. باوجوداین، استقبال لازم از مدیریت زیستی فرسایش خاک به سبب عدم الگوی اجرایی مناسب توسط کارشناسان اجرایی صورت نگرفته است. ازاین‌رو، پژوهش حاضر باهدف مدیریت زیستی فرسایش در حوزه آبخیز گاوشان واقع در غرب استان کرمانشاه و با مساحت 7736 هکتار به سبب وجود فرسایش‌ سطحی و قابل مدیریت و هم‌چنین اطلاعات در دسترس انجام شد. در این راستا پس از تعیین وضعیت فرسایشی، ویژگی‌های اقلیمی و شرایط رشد گیاهی، رویه اجرایی مدیریت زیستی منطقه پیشنهاد شد. نتایج ضمن گزارش غالبیت فرسایش سطحی، بر قرارگیری وضعیت فرسایشی در طبقه کم و متوسط و طبعاً قابلیت انجام رویکردهای زیستی در آبخیز مزبور مبتنی بر نقشه اقلیمی-کشاورزی تأکید داشت. در همین راستا، مراتع متوسط و ضعیف با مساحت حدود 4219 هکتار و گستره بیش از 54 درصد از آبخیز برای انجام اقدامات زیستی در نظر گرفته شد. هم‌چنین نتایج تقسیم‌بندی رده‌های اقلیمی-کشاورزی آبخیز مطالعاتی را به پنج رده همگون تقسیم کرد. درنهایت برنامه اجرایی مدیریت زیستی فرسایش آبخیز گاوشان بر اساس جامعه‌شناسی گیاهی و توقعات بوم‌شناسی مربوطه در رده‌های اقلیمی-کشاورزی ارائه شد. استفاده از گونه‌های بومی در آبخیز مطالعاتی با افزایش سطح پوشش زمینه‌ساز ایجاد تعادل بوم‌شناختی و درعین‌حال حفاظت از منابع پایه آب، خاک و پوشش گیاهی خواهد شد. نتایج پژوهش حاضر به‌عنوان پژوهشی پیشگام می‌تواند در مدیریت زیستی منابع خاک‌وآب نواحی غرب کشور با شرایط بوم‌سازگانی مشابه مورداستفاده قرار گیرد.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Biological Management of Soil Erosion (Case Study: Gavoshan Watershed, Kermanshah Province, Iran)

نویسندگان [English]

  • S.H. Sadeghi 1
  • A. Jafarpour 2
  • M. Farajolahi 2
  • D. Khatibi Roodbarsara 2
  • M. Moradi Sefidcheghayi 2
  • M. Zabihi Silabi 2
  • M. Khosravi 3
  • E. Kolani 4
  • B. Mohammadi 4
  • M.J. Adibi 4
  • H. Azarniya 5
1 Department of Watershed Management Engineering, Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University, Noor Mazandaran Province, Iran
2 Department of Watershed Management Engineering, Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University
3 Department of Natural Resources Engineering, Razi University of Kermanshah
4 Natural Resources Department of Kermanshah and Songhor, Kermanshah, Iran
5 Former B.Sc. Student in Soil Science, Razi University of Kermanshah, Kermanshah, Iran
چکیده [English]

Introduction: One of the most important causes of land degradation and reduced fertility is soil erosion, a severe threat to human welfare and food security. With the intensification of erosion and sediment transport in the watershed, water quality is reduced, and sediment production and flood risks are increased. The consequences of soil impoverishment cause irreparable damage, including the abandonment of farms, increased migration, economic, social, and political problems. In this regard, paying attention to soil and water resources conservation is one of the most necessary measures to control erosion. So that the performance of natural ecosystems increases through conserving the soil and preventing the occurrence and intensification of erosion. Therefore, it is essential to know different stages of erosion and evaluation of the factors governing it in properly managing soil and water resources in a watershed. So far, various biological methods and structures are used to control soil and runoff loss in watersheds. Since biological methods are based on ecosystems' conditions, it is essential to control soil erosion in the early stages. In recent years, extensive methods for the conservation of soil and water resources have been introduced and used in practice. Therefore, one of the most important methods of protecting soil and water resources is the use of biological methods in terms of low use of tillage operations, limited intervention, and manipulation in nature, cost-effectiveness, and also better efficiency than structural measures. However, the biological management of soil erosion has not yet been welcomed by executive experts due to the lack of a proper implementation model.
Materials and Methods: The present study was conducted to investigate biological erosion management in the Gavoshan Watershed, Iran, due to distributed and manageable erosion and the available information. The Gavoshan Watershed, with an area of 7736 ha, the mean annual precipitation of 339 mm, the minimum and maximum elevations of 1635, and 2455 meters above sea level, is located in Kermanshah Province. After determining the erosion status, climatic characteristics, and plant growth conditions, the executive procedure of biological management of the region was proposed.
Results and Discussion: The results showed that surface erosion is predominant in the area, and therefore the suitability of the conditions for bio-management measures was confirmed. While reporting the prevalence of sheet erosion, the results emphasized the erosion status in the low and moderate classes and the ability to perform biological approaches in the watershed based on the climatic-agricultural map. The results further showed that according to the climatic-agricultural map, the whole study watershed was divided into five categories. In this regard, the second category with an area of 3421 ha had the highest, and the fifth category with 82 ha had the lowest areas. Finally, after determining the area of different land-uses and according to the maps of soil erosion and climatic-agricultural conditions as well as ombrothermic and hetherograph diagrams, suitable rangeland species were selected and suggested for each climatic-agricultural category based on the expected characteristics of elevation, precipitation, temperature, phenology and adequate role in soil conservation. Finally, the executive plan of biological management of soil erosion in the Gavoshan Watershed was presented based on phytosociology and relevant ecological expectations. Since bio-management measures are applicable in rangelands with moderate and poor vegetation conditions, the good rangelands were not prioritized for the planning. Accordingly, moderate and weak rangelands with an area of about 4219 ha, i.e.> 54%, of the watershed were considered for biological activities. It is expected that by taking biological measures, erosion control will be done in the early stages, and by increasing the vegetation level in 54.63% of the watershed, in addition to controlling soil erosion or at least stopping it in the early stages, carbon sequestration conditions, nitrogen fixation, and increase soil fertility. The use of endemic species in this watershed would facilitate ecological balance and at the same time protect the basic resources of water, soil, and vegetation by increasing the level of ground cover.
Conclusion: Biological management is a new approach in soil and water resource sustainable management that inhibits soil loss in the early stages of erosion and prevents the destruction of ecosystems. The results of the present study are anticipated to meet the expected needs in the protection of soil and water resources in similar watersheds in the west of the country. The results of the present study can be used in soil and water resources management in the western regions of the country with similar ecological conditions. Although the proposed approach can be used in most parts of the country rangelands, appropriate field studies and continuous monitoring of the proposed function will be necessary to provide comprehensive and integrated conclusions for soil and water resources management.

کلیدواژه‌ها [English]

  • Adaptive soil conservation
  • Bio-climatic zoning
  • Erosion bioengineering
  • Vegetation cover management
  • Alavizadeh F., Naseri K., Golkarian A., and Tavili A. 2014. The study of biological soil crust (mosses) roles in protection of surface soil in front of water erosion (Case study: Rangelands around Torogh Dam in Khorasan Razavi Province). Journal of Rangeland and Watershed Management 67(1): 83-92. (In Persian)
  • Babaie S., Niknahad H., Fatahi B., and Akbarlo M. 2012. Investigation of botanical characteristics and importance of Daphne mucronata 1st National Conference on Strategies for Achieving Sustainable Development. 4 P. (In Persian)
  • Baghaeifar Z., Mofidinia M., and Chehregani A.K. 2016. Microsporogenesis and megasporogenesis in Echinops ilicifolius Cellurar and Molecular Researches (Iranian Journal of Biology) 29(4): 349-358. (In Persian with English abstract)
  • Bagheri A., Safdari V., Lashgari A., and Tajdini A. 2014. Comparative wood anatomy of three Ephedra species (Ephedra procera, Ephedra strobilacea and Ephedra intermedia) of Iran. Wood and Paper Science Research 28(4): 709-719. (In Persian with English abstract)
  • Belnap J., Walker B.J., Munson S.M., and Gill R.A. 2014. Controls on sediment production in two US deserts. Aeolian Research 14: 15-24.‏
  • Boardman J., Vandaele K., Evans R., and Foster I. D. 2019. Off-site impacts of soil erosion and runoff: Why connectivity is more important than erosion rates. Soil Use and Management 35(2): 245-256.
  • Chamizo S., Rodríguez-Caballero E., Román J.R., and Cantón Y. 2017. Effects of biocrust on soil erosion and organic carbon losses under natural rainfall. Catena 148(2): 117-125.‏
  • Cheng, Li Y., Long M., Gao M., Zhang Y., Lin J., and Li X. 2020. Moss biocrusts buffer the negative effects of karst rocky desertification on soil properties and soil microbial richness. Plant and Soil 1-16.‏
  • Delavar M., and Hamidi Madani N. 2014. Investigation of Ombrothermic curves in the interpretation of drought phenomenon (Case study: Fars Province). 1th National Conference on Water, Human, Earth. 13 P. (In Persian)
  • Dharma-Wardana M.W.C. 2018. Fertilizer usage and cadmium in soils, crops, and food. Environmental Geochemistry and Health 40(6): 2739-2759.
  • Esmali A., and Abdollahi Kh. 2011. Watershed Management & Soil Conservation. University of Mohaghegh Ardabili 612 p. (In Persian)
  • Farajzadeh M., and Takalo-Bighash A. 2001. Agroclimatic zoning in Hamedan Province using GIS technology based on dry wheat. Geographical Research Quarterly 21: 93-105. (In Persian)
  • Farsi R., Yeganeh H., Hoseinalizadeh M., and Azimi M.S. 2021. Estimating the economic value of the role of vegetation in controlling soil erosion (Case Study: Kechik Watershed). Water and Soil Conservation 27 (6): 137-152. (In Persian with English abstract)
  • Gao L., Bowker M.A., Sun H., Zhao J., and Zhao Y. 2020. Linkages between biocrust development and water erosion and implications for erosion model implementation. Geoderma 357:
  • Ghasemi Aryan Y., Arzani H., Filekesh E., and Yari R. 2013. Estimating the production of Artemisia siberi through the measurement of plant’s dimensions (Case study: southwest Sabzevar). Iraninn Journal of Rangeland and Desert Research 20(1): 1-10. (In Persian with English abstract)
  • Gholami L., Karimi N., and Kavian A. 2017. Soil bioengineering methods used in water management and stabilization of steep slopes. Ecohydrology 4(1): 149-162. (In Persian)
  • Haghizadeh A., Bayat, and Arshia A. 2019. Estimation of The Evapotranspiration potential of Kermanshah synoptic stations Using Genetic Programming. Geographic Space 67(19): 29-42. (In Persian)
  • Haidarian Aghakhani M., Naghipour Borj A.A., and Nasri M. 2010. The effects of exclosure on vegetation and soil chemical properties in Sisab rangeland, Bojnord, Iran. Renewable National Research 1(2): 14-24. (In Persian with English abstract)
  • Hanafi A., and Khoshhal Dastjerdi J. 2017. Identifying Suitable Areas for Dry-farming Wheat in Zanjan Province Based on Agricultural Climatic Parameters. Geographic Space 59(17): 47-66. (In Persian)
  • Hosseini Tavasol M., and Yousefi Khanghah Sh. 2007. Provide a method for managing and rehabilitating watersheds using appropriate biological programs (Case study of Gorbaghi watershed). 4th National Conference on Watershed Management Science and Engineering of Iran (Watershed Management) 10 P. (In Persian)
  • Hosseini S.A., Raeini M., Sharifi F., and Gholami M. 2018.Evaluation of bio mulch erodibility on steep lands using rainfall simulation. Watershed Engineering and Management 10(1): 108-120. (In Persian with English abstract)
  • Kavianpour A., Jafarian Z., Esmaeili A., and Kavian A. 2015. Effect of Vegetation on Reduction of Runoff and Soil Loss Using Rain Simulation in Nashu Rangelands of Mazandaran Province. Geography and Environmental Planning 58(2): 179-190. (In Persian)
  • Kermanshah Development Engineering Consulting Company, 2015. Detailed-executive studies of area No. 4 of Gavoshan dam in Songor and Keliai. 172 p. (In Persian)
  • Khatibi S.A., Golkarian A., Mosaedi A., and Sojasi Qeidari H. 2017. Evaluation biological and biomechanical watershed management activities Case study: Mahvid Catchment. Extension and Development of Watershed Management 5(16): 45-54. (In Persian with English abstract)
  • Kheirfam, and Asadzadeh F. 2020. Stabilizing sand from dried-up lakebeds against wind erosion by accelerating biological soil crust development. European Journal of Soil Biology 98: 103189.‏
  • Le Bissonnais Y., Cerdan O., Lecomte V., Benkhadra H., Souchère V., and Martin P. 2005. Variability of soil surface characteristics influencing runoff and interrill erosion. Catena 62(2-3): 111-124.‏
  • Maassoumi A. 2016. Role of Astragalus in equilibrium ecosystem. Iran Nature 1(1): 41-47. (In Persian with English abstract)
  • Mooshakhian Y., Sheikh A., Vetiver role in soil erosion control. 2009. 5th National Conference on Watershed Management Science and Engineering of Iran (Sustainable Management of Natural Resources). 10p. (In Persian)
  • Rafiee F., Jafari A., and Askari Y. 2014. An overview of the botanical characteristics of Crataegus 2th National Conference on Forest Science Students 9 P. (In Persian)
  • Rafiee, Jafari  R.,  Matinkhah S.H., Tarkesh Isfahani M.,  Karimzadeh H.R, and Jafari Z. 2020. Predicting the Potential Habitat Distribution of Crataegus Pontica C. Koch, Using a Combined Modeling Approach in Lorestan Province. Applied Ecology Isfahan University of Technology 9(2): 45-59. (In Persian with English abstract)
  • Refahi H.Gh. 2015. Water erosion and conservation. 2nd University of Tehran Press 674 P. (In Persian)
  • SadeghiH.R., Kheirfam H., Homaee M., Zarei-Darki B., and Vafakhah M. 2017. Improving runoff behavior resulting from direct inoculation of soil micro-organisms. Soil and Tillage Research 171: 35-41.‏
  • SadeghiH.R., Ghavimi-Panah M.H., Younesi H., and Kheirfam H. 2018. Ameliorating some quality properties of an erosion-prone soil using biochar produced from dairy wastewater sludge. Catena 171: 193-198.‏
  • SadeghiH.R., Gholami L., Homaee M., and Khaledi Darvishan A. 2015. Reducing sediment concentration and soil loss using organic and inorganic amendments at plot scale, Solid Earth 6(2): 445-455.
  • SadeghiH.R., Najafinejad A., Gharemahmudli S., Zarei-Darki B., Behbahani A. M., and Kheirfam H. 2021. Reduction in soil loss caused by a freeze-thaw cycle through inoculation of endemic soil microorganisms. Applied Soil Ecology 157: 103770.
  • SadeghiH.R., Sadeghi Satri M., Kheirfam H., and Zarei-Darki B. 2020. Runoff and soil loss from small plots of erosion-prone marl soil inoculated with bacteria and cyanobacteria under real conditions. European Journal of Soil Biology 101: 103214.‏
  • Sadeghi S.H.R., Jafarpoor A., Zabihi Silabi M., Molashahi S., Naghdi M., Sharifi Moghani M., Ghysoori Z., and Farzadfar E. 2021. Biologic Management Framework of Soil Erosion in the Watershed (Applied study: Oshnavieh Galazchai, West Azerbaijan, Iran). Iranian Journal of Soil and Water Research 52(4): 1-15. (In Persian with English abstract)
  • Sadeghi S.H.R., Kheirfam H., Homaee M., and Zarei-Darki 2017. Improving runoff behavior resulting from direct inoculation of soil micro-organisms. Soil and Tillage Research 171: 35-41.
  • SadeghiH.R. 2005. A semi-detailed technique for soil erosion mapping based on BLM and satellite image applications, Journal of Agricultural Sciences and Technology (JAST) 7(3-4): 133-142.
  • Saffariha M., Azarnivand H., Zare Chahouki M.A., Tavili A., Nejad Ebrahimi S., and Potter D. 2019.  Investigating the effect of flowering stage on the quality and quantity of Salvia limbata essential oil in different altitudes in Taleghan rangelands. Range and Watershed Management 27(1): 139-149. (In Persian)
  • Servati R., Ahmadi H., Mirbagheri B., and Bahramifard H. 2011. Erosion estimation of Zidasht-Fashndak watershed (Taleghan). Natural Geography 4(12): 17-28. (In Persian)
  • Shirmardi H.A., Gholami P., Mohammadi Najafabadi H., and Fakhimi Abarghoei E. 2018. Investigation of changes production and consumption of Bromus tomentellus Boiss in Karsanak Rangelands in Chaharmahal & Bakhtiari Province. 7th National SConference on Range and Range Management of Iran 12 p. (In Persian with English abstract)
  • TavaKoli M., and Pirozi F. 2011. Preliminary study of the causes of drought and decay of Arjan (Amygduluse orientalis) shrubs in Lorestan Province. Central Zagros National Forest Conference; Capabilities and bottlenecks 8p. (In Persian)
  • Xiao B., Sun F., Hu, K., and Kidron G.J. 2019. Biocrusts reduce surface soil infiltrability and impede soil water infiltration under tension and ponding conditions in dryland ecosystem. Journal of Hydrology 568: 792-802.
  • Young K.E., Bowker M.A., Reed S.C., Duniway M.C., and Belnap J. 2019. Temporal and abiotic fluctuations may be preventing successful rehabilitation of soil‐stabilizing biocrust communities.Ecological Applications 29(5): 1-13.