| تعداد نشریات | 287 |
| تعداد نشریات سازمان | 85 |
| تعداد شمارهها | 3,159 |
| تعداد مقالات | 35,108 |
| تعداد مشاهده مقاله | 50,529,951 |
| تعداد دریافت فایل اصل مقاله | 90,478,411 |
تغییرات گسترههای رو به دریا و خشکی رویشگاههای مانگرو در سواحل استان هرمزگان | ||
| تحقیقات حمایت و حفاظت جنگلها و مراتع ایران | ||
| مقاله 2، دوره 18، شماره 1 - شماره پیاپی 35، شهریور 1399، صفحه 1-13 اصل مقاله (566.47 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijfrpr.2020.126154.1382 | ||
| نویسندگان | ||
| داود مافی غلامی* 1؛ ابوالفضل جعفری2 | ||
| 1گروه علوم جنگل، دانشکده منابع طبیعی و علوم زمین، دانشگاه شهرکرد | ||
| 2استادیار پژوهش / موسسه تحقیقات جنگلها و مراتع کشور | ||
| چکیده | ||
| کاهش بارندگی و وقوع خشکسالی با محدود کردن مهاجرت مانگروها بهسمت خشکی، سبب افزایش آسیبپذیری این اکوسیستمها نسبت به بالا آمدن سطح آب دریاها میشود. بنابراین پایش تغییرات گسترههای رو به خشکی و دریای مانگروها میتواند اطلاعات ارزشمندی را در مورد میزان آسیبپذیری آنها به بالا آمدن سطح آب دریا ارائه دهد. هدف از پژوهش پیشرو بررسی روند تغییرات گسترههای رو به خشکی و دریای مانگروها در طول سواحل استان هرمزگان است. بدین منظور، با استفاده از تصاویر ماهوارهای پوشش مانگروها در سه رویشگاه خمیر، تیاب و جاسک در سالهای 1986، 1998 و 2016 نقشهسازی شد و تغییرات گستره رو به خشکی و رو به دریای رویشگاهها در مقاطع زمانی ذکرشده بررسی گردید. نتایج نشان داد که در دوره زمانی پس از سال 1998 که منطبق با دورههای بلندمدت خشکسالی در سواحل جنوبی ایران است، از وسعت گسترههای رو به خشکی مانگروها کاسته شده است (7/272 هکتار کاهش در رویشگاه خمیر) و یا آنکه روند توسعه گسترههای رو به خشکی رویشگاهها کاهش چشمگیری داشته است؛ بهطوری که در رویشگاههای تیاب و جاسک میزان افزایش وسعت گستره رو به خشکی به ترتیب از حدود 463 و 165 هکتار در دوره پیش از سال 1998 به حدود 35 و 13هکتار در دوره پس از سال 1998 کاهش یافته است. در کنار تاثیر قابلتوجه کاهش بارندگی، عوامل انسانی همانند چرای دام و تهیه چوب سوختی (بویژه در مانگروهای واقع در روبشگاه خمیر)، توسعه آبزیپروری و آلایندهها نیز نقش موثری در پسروی این رویشگاهها داشتهاند. | ||
| کلیدواژهها | ||
| آسیب پذیری؛ تغییر اقلیم؛ سامانه اطلاعات جغرافیایی؛ سنجش از دور | ||
| عنوان مقاله [English] | ||
| Changes in landward and seaward extent of mangroves in the coastal areas of the Hormozgan province | ||
| نویسندگان [English] | ||
| Davood Mafi Gholami1؛ Abolfazl Jaafari2 | ||
| 1Department of forest science, faculty of natural resources and earth sciences, Sahrekord university, Sahrekord, Iran | ||
| 2Research Institute of Forests and Rangelands | ||
| چکیده [English] | ||
| Reduced rainfall and drought occurrence by restricting the migration of mangroves to the uplands have increased the vulnerability of these ecosystems to sea level rise. Therefore, monitoring the changes in the landward and seaward extent of mangroves can provide valuable information on the response and degree of vulnerability of these ecosystems to sea level rise. The aim of this study was to investigate the changes in the landward and seaward extent of mangroves along the coasts of the Hormozgan province. To this end, the mangroves in the Khamir, Tiab and, Jask habitats were mapped using satellite imagery in 1986, 1998 and 2016 and changes in the landward and seaward extent of mangroves were investigated during the periods before and after 1998 (the period of occurrence of long-term droughts on the southern coasts of Iran). The results showed that in the post-1998 period, which corresponds to long periods of drought on the southern coast of Iran, the landward extent of the mangroves was reduced (272.7 ha reduction in Khamir) or the trend of development of landward extent has decreased dramatically, such that in Tiab and Jask the increase in the landward extent has decreased from 463 and 165 ha to 35 and 13 ha, respectively. In addition to the significant effect of reduced rainfall, human factors such as livestock grazing and fueling (especially for the mangroves located in Khamir), development of aquaculture and pollutants have also played an important role in the regression of these habitats. | ||
| کلیدواژهها [English] | ||
| Climate change, Geographic information system, Remote sensing, Vulnerability | ||
| مراجع | ||
|
-Alongi, D.M. 2018b. Impact of global change on nutrient dynamics in mangrove forests. Forests, 9(10): 596. -Alongi, D.M. 2008. Mangrove Forests: resilience, protection from tsunamis, and responses to global climate change. Estuarine, Coastal and Shelf Science, 76(1): 1-13. -Alongi, D. M. 2018a. Mangrove Forests. In Blue Carbon (pp. 23-36). Springer, Cham. -Barlow, M., Cullen, H. and Lyon, B. 2002. Drought in central and southwest Asia: La Niña, the warm pool, and Indian Ocean precipitation. Journal of climate, 15(7): 697-700. -Blasco, F., Saenger, P. and Janodet, E. 1996. Mangroves as indicators of coastal change. Catena, 27(3-4): 167-178. -Cazenave, A. and Remy, F. 2011. Sea level and climate: measurements and causes of changes. Wiley Interdisciplinary Reviews, Climate Change, 2(5): 647-662. -CESNR (Consulting Engineers of Sustainability of Nature and Resources), 2013. National document of the country's mangrove forests, 530p (In Persian). -Dahdouh-Guebas, F., Jayatissa, L.P., Di Nitto, D., Bosire, J.O., LoSeen, D. and Koedam, N. 2005. How effective were mangroves as a defense against the recent tsunami?. Current Biology, 15: 443-447. -Danehkar, A. 2001. Mangroves forests zonation in Gaz and Harra international wetlands. The Environment Scientific Quarterly Journal, 34: 43-49 (In Persian). -Danehkar, A., Mahmoudi, B. and Hashemi, A. 2007. Management Plan and development of mangrove forests in the Hormozgan province, Department of Natural Resources Hormozgan province, 200p (In Persian). -Ellison, J.C. 2018. Effects of climate change on mangroves relevant to the Pacific Islands. Centre for Environment, Fisheries and Aquaculture Science, 99-111. -Ellison, J.C. and Zouh, I. 2012. Vulnerability to climate change of mangroves: assessment from Cameroon, Central Africa. Biology, 1(3): 617-638. -Eslami-Andargoli, L., Dale, P.E.R., Sipe, N. and Chaseling, J. 2009. Mangrove expansion and rainfall patterns in Moreton Bay, southeast Queensland, Australia. Estuarine, Coastal and Shelf Science, 85(2): 292-298. -Eslami-Andargoli, L., Dale, P.E.R., Sipe, N. and Chaseling, J. 2010. Local and landscape effects on spatial patterns of mangrove forest during wetter and drier periods: Moreton Bay, Southeast Queensland, Australia. Estuarine, Coastal and Shelf Science, 89(1): 53-61. -Etemadi, H., Samadi, S.Z., Sharifikia, M. and Smoak, J.M. 2016. Assessment of climate change downscaling and non-stationarity on the spatial pattern of a mangrove ecosystem in an arid coastal region of southern Iran. Theoretical and Applied Climatology, 126(1-2): 35-49. -FAO (Food and Agriculture Organization of the United Nations). 2007. The world’s mangroves 1980–2005. FAO Forestry Paper 153. FAO, Rome. -Field, C. 1995. Impacts of expected climate change on mangroves. Hydrobiologia, 295: 75-81. -Gilman, E.L., Ellison, J., Duke, N.C. and Field, C. 2008. Threats to mangroves from climate change and adaptation options: a review. Aquatic Botany, 89(2): 237-250. -Gilman, E., Ellison, J. and Coleman, R. 2007. Assessment of mangrove response to projected relative sea-level rise and recent historical reconstruction of shoreline position. Environmental Monitoring and Assessment, 124(1): 105-130. -Giri, C. 2016. Observation and monitoring of mangrove forests using remote sensing: Opportunities and challenges. Remote Sensing, 8(9): 783. -Halpern, B.S., Selkoe, K.A., Micheli, F. and Kappel, C.V. 2007. Evaluating and ranking the vulnerability of global marine ecosystems to anthropogenic threats. Conservation Biology, 21(5): 1301-1315. -Krauss, K.W., McKee, K.L., Lovelock, C.E., Cahoon, D.R., Saintilan, N., Reef, R. and Chen, L. 2014. How mangrove forests adjust to rising sea level. New Phytologist, 202(1): 19-34. -Lucas, R.M., Ellison, J.C., Mitchell, A., Donnelly, B., Finlayson, M. and Milne, A.K. 2002. Use of stereo aerial photography for quantifying changes in the extent and height of mangroves in tropical Australia. Wetlands ecology and Management, 10(2): 159-173. -Mafi-Gholami, D., Mahmoudi, B. and Zenner, E.K. 2017a. An analysis of the relationship between drought events and mangrove changes along the northern coasts of the Persian Gulf and Oman Sea. Estuarine, Coastal and Shelf Science, 199: 141-151. -Mafi-Gholami, D., Baharlouii, M. and Mahmoudi, B. 2017b. Investigation of climate change consequences on mangroves and saltmarshes areas (Case study: Hara biosphere reserves). Journal of Environmental Researches. Accepted for publication (In Persian). -Mafi-Gholami, D., Feghhi, J., Danehkar, A. and Yarali, N. 2015. Prioritizing stresses and disturbances affecting mangrove forests using Fuzzy Analytic Hierarchy Process (FAHP). Case study: mangrove forests of Hormozgan Province, Iran. Advances in Environmental Sciences, 7(3): 442-459. -Mafi-Gholami, D., Zenner, E.K., Jaafari, A. and Ward, R.D. 2019. Modeling multi-decadal mangrove leaf area index in response to drought along the semi-arid southern coasts of Iran. Science of the Total Environment, 656: 1326-1336. -Mehrabian, A., Naqinezhad, A., Mahiny, A.S., Mostafavi, H., Liaghati, H. and Kouchekzadeh, M. 2009. Vegetation Mapping of the Mond Protected Area of Bushehr Province (South‐west Iran). Journal of Integrative Plant Biology, 51(3): 251-260. -Mukherjee, N., Sutherland, W.J., Dicks, L., Hugé, J., Koedam, N. and Dahdouh-Guebas, F. 2014. Ecosystem service valuations of mangrove ecosystems to inform decision making and future valuation exercises. PloS one, 9(9): e107706. -Nguyen, H.H., McAlpine, C., Pullar, D., Johansen, K. and Duke, N.C., 2013. The relationship of spatial–temporal changes in fringe mangrove extent and adjacent land-use: Case study of Kien Giang coast, Vietnam. Ocean and Coastal Management, 76: 12-22. -Snedaker, S.C. 1995. Mangroves and climate change in the Florida and Caribbean region: scenarios and hypotheses. In Asia-Pacific Symposium on Mangrove Ecosystems, Springer Netherlands, 43-49. -Wang, Q., Tenhunen, J., Dinh, N.Q., Reichstein, M., Vesala, T. and Keronen, P. 2004. Similarities in ground-and satellite-based NDVI time series and their relationship to physiological activity of a Scots pine forest in Finland. Remote Sensing of Environment, 93(1): 225-237. | ||
|
آمار تعداد مشاهده مقاله: 622 تعداد دریافت فایل اصل مقاله: 419 |
||