Effects of uprooting tree on herbaceous species diversity, woody species regeneration status and soil physical characteristics in a temperate mixed forest of Iran  

作　　者：Y. Kooch S. M. Hosseini J. Mohammadi S. M. Hojjati 

机构地区：[1]Faculty of Natural Resources & Marine Sciences, Tarbiat Modares University (TMU), IRAN [2]Faculty of Soil Sciences, Shahrekord University, IRAN [3]University of Natural Resources and Agriculture Sciences of Sari, IRAN

出　　处：《Journal of Forestry Research》2012年第1期81-86,共6页林业研究（英文版）

摘　　要：We conducted a study to examine the pattem of develop- ment of herbaceous plant species, woody species regeneration and soil physical characteristics after tree uprooting in 20-ha areas of Experimen- tal Forest Station of Tarbiat Modares University located in a temperate forest of Mazandaran province in the north of Iran. Soil bulk density, soil texture and moisture from pit and mound （PM） were measured in the laboratory. Results show that the soil bulk density was most in soil deeper layers at mound top, and the soil moisture content was most in soil deeper layers at Pit bottom. Our study supports that the mi- cro-topography of PM （pit and mound） topography will create a mosaic of environmental conditions. This environmental heterogeneity could be responsible for the diversity of herbaceous plant species and regeneration of woody species. It is recommend that the fallen trees with PM structure should remain in the protected area without clearing as the best option for forest restoration. This information can be useful for forest management that attempts to emulate natural processes.We conducted a study to examine the pattem of develop- ment of herbaceous plant species, woody species regeneration and soil physical characteristics after tree uprooting in 20-ha areas of Experimen- tal Forest Station of Tarbiat Modares University located in a temperate forest of Mazandaran province in the north of Iran. Soil bulk density, soil texture and moisture from pit and mound （PM） were measured in the laboratory. Results show that the soil bulk density was most in soil deeper layers at mound top, and the soil moisture content was most in soil deeper layers at Pit bottom. Our study supports that the mi- cro-topography of PM （pit and mound） topography will create a mosaic of environmental conditions. This environmental heterogeneity could be responsible for the diversity of herbaceous plant species and regeneration of woody species. It is recommend that the fallen trees with PM structure should remain in the protected area without clearing as the best option for forest restoration. This information can be useful for forest management that attempts to emulate natural processes.

关 键 词：DISTURBANCE BEECH hornbeam soil texture Iran 

分 类 号：S718.5[农业科学—林学]