Open AccessRestoration of Degraded Natural Limestone Forests in Cat Ba Biosphere Reserves, Vietnam
Author(s) -
Tran Hai Long,
Trieu Thai Hung,
Sangjun Im,
Đặng Thị Hải Hà,
Ninh Viet Khuong,
Nguyễn Văn Tuấn,
Hoàng Nghĩa Sơn,
Tran Hoang Quy,
Hong Truong Luu,
Tran Cao Nguyen,
Phung Dinh Trung,
Binh TranNam,
Le Hong Lien,
Qiwen Li
Publication year - 2021
Publication title -
annual research and review in biology
Language(s) - English
Resource type - Journals
ISSN - 2347-565X
DOI - 10.9734/arrb/2021/v36i230339
Subject(s) - natural regeneration , biosphere , forest restoration , species richness , restoration ecology , regeneration (biology) , natural (archaeology) , environmental science , biodiversity , agroforestry , natural forest , forest cover , nature reserve , forestry , distribution (mathematics) , ecology , geography , forest ecology , ecosystem , biology , mathematics , archaeology , microbiology and biotechnology , mathematical analysis
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.