Restoration of Degraded Natural Limestone Forests in Cat Ba Biosphere Reserves, Vietnam
Tran Hai Long, Trieu Thai Hung, Sangjun Im, Dang Thi Hai Ha, Ninh Viet Khuong, Nguyen Van Tuan, Hoang Thanh Son, Tran Hoang Quy, Trinh Ngoc Bon, Tran Cao Nguyen, Phung Dinh Trung, Tran Nam Binh, Le Hong Lien, Qiwen Li
Annual Research & Review in Biology · pp. 14–26 · Published 10 Jan 2021
10.9734/arrb/2021/v36i230339Abstract
Vietnam experienced significant forest cover change during the last half of the twentieth century, and restoration of natural forests have increased since the 1990s. This study developed comparisons of human-intervened and naturally restored forests in Cat Ba Biosphere Reserve, Vietnam in order to gain a better understanding of restoration options for the dual objectives of biodiversity conservation and forest cover. The overstory trees (species composition, growth, and diameter distribution) and natural regeneration (species richness, density, and height distribution) were measured and compared in twelve plots established in natural (NPS) and artificial restoration (RPS) models for post-selective-logged forest, and natural (NPC) and artificial restoration (RPC) models for post-clear-cut forest. Results indicated that the overstory trees and natural regeneration of RPS and RPC was higher than that of NPS and NPC. We concluded that the forest restoration models had shown successes, although extensive silvicultural techniques should be applied for a more stabilized development, especially in the RPC.
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