بررسی شناخت مناطق اکولوژیک کشور - مطالعه پوشش گیاهی استان هرمزگان - منطقه لاربرگ

Vegetation type of, a district in Fars and Hormozgan provinces, is mapped and documented as a result of a comprehensive national project titled Recognition of Iranian ecological zones . This rea is 1643064.55 hectars located on 54 - 55 , 30' E and 27 - 28 N. The most populated areas of the districts are Lar, Grash, Evaz and Bastak. On the basis of physiognomy and floristic status of the vegetation, rangelands and Forests of the district are segmented into range and forest vegetation types. Results of the study show that the area of rangelands and Forests is 12750750.09 hectares equal to 77.60% of the district s total area. Rangelands and Forests of the district are classified as 123 range and forest vegetation types. Having one dominant species in common, vegetation types were put in so called Plant group to ease realization of the situation as follows: -Pistacia atlantica-Amydalus scoparia covering about 125846.66 hectares equal 10.44% of the total vegetation types. -Zygophyllum atriplicoides-Gymnocarpos decander-Platychaete aucheri covering about 93310.44 hectares equal 7.74% of the total vegetation types. -Zygophyllum atriplicoides-Gymnocarpos decander covering about 80676.15 hectares equal 6.69% of the total vegetation types. -Cornulaca monacantha-Gailonia aucheri covering about 206.07 hectares equal 0.017 of the total vegetation types. -Astragalus sp.-Phragmites australis covering about 214.62 hectares equal 0.017of the total vegetation types. -Ziziphus spina-christi-Cymbopogon olivieri covering about 228.9 hectares equal 0.018 of the total vegetation types. Nearly 72627.59 hectares equal to 4.42% of total area is allocated to crops of irrigated, none irrigated and also orchards. about 8004.02 hectares equal to 0.49% of total area is allocated to urban. about 36619 hectares equal to 2.23% of total area is allocated to bare lands. About 229458 hectares equal to 13.97% of total area is allocated to bare rocky lands. about 21281 hectares equal 1.3% of total area is allocated to diapeeras. Meanwhile About 2006 hectares equal 0.12% of total area is allocated to riverian vegation and about 5325 hectares equal 0.32% of total area is allocated to mixture of vegetation which might not to be separated as vegetation types.

کلیدواژه ها:

لاربرگ ، بوم شناسی گیاهی ، پوشش گیاهی ، بهره برداری از زمین