Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài:"Long-term evolution of understorey plant species composition after logging in chestnut coppice stands (Cevennes Mountains, southern France)" | Ann. For. Sci. 62 2005 333-342 INRA EDP Sciences 2005 DOI forest 2005028 333 Original article Long-term evolution of understorey plant species composition after logging in chestnut coppice stands Cevennes Mountains southern France Hélène Gondard Francois Romane CEFE-CNRS 1919 route de Mende 34293 Montpellier Cedex 5 France Received 10 May 2004 accepted 7 July 2004 Abstract - In the Cevennes many abandoned chestnut groves have been turned into coppice stands. It was previously shown that plant diversity decreases after abandonment. Nevertheless we propose that logging could be an effective means to maintain plant diversity. The main objective of the present study was to analyze plant diversity changes after clear-cutting and thinning of a chestnut coppice stand as compared to a nearby uncut stand. We hypothesized that rapid chestnut growth and consequently reestablishment of a closed canopy would lead to a decrease in species richness. In fact herbaceous plant species richness showed a large but only temporary increase after logging. A surprising result was the high percentage of hemicryptophytes observed after logging. Generally therophytes are the first invaders of open areas. Hemicryptophytes occurring after logging were common species and no rare species was found there or in the uncut area. Moreover the increase of species richness concerned especially anemochorous plants. It appeared that one possibility to preserve plant diversity at the landscape scale could be to maintain a mosaic of chestnut groves abandoned chestnut groves and coppice stands. plant diversity life form dispersal mode leaf area index management Résumé - Evolution sur le long terme de la composition végétale de la strate herbacée après coupe forestiere de taillis de châtaignier dans les Cévennes dans le sud de la France. Dans les Cévennes de nombreux vergers de châtaigniers abandonnés sont transformés en taillis. Il a été clairement montré que la diversité végétale diminue après .
