TAILIEUCHUNG - Relationship between climatic condition and mangrove forest structure on northern coast of Vietnam
Results showed that the differences in mangrove forest structure (stem diameter, biomass and basal area) and climate (temperature and rainfall) among study sites were significant (p < ). Stem diameter, tree height, basal area and biomass had positive linear relationship with annual average temperature and January average temperature, and negative linear relationship with annual rainfall. | Journal of Science and Technology 54 (4) (2016) 443-451 DOI: RELATIONSHIP BETWEEN CLIMATIC CONDITION AND MANGROVE FOREST STRUCTURE ON NORTHERN COAST OF VIETNAM Pham Hong Tinh1, Nguyen Thi Hong Hanh2, *, Mai Sy Tuan3 1 General Department of Land Administration, No. 78/9 Giai Phong, Dong Da, Hanoi, Vietnam 2 Hanoi University of Natural Resources and Environment, No. 41A Phu Dien, Bac Tu Liem, Hanoi, Vietnam 3 Hanoi National University of Education, No. 136 Xuan Thuy, Cau Giay, Hanoi, Vietnam * Email: honghanhsp@ Received: 23 November 2015; Accepted for publication: 11 January 2016 ABSTRACT The differences in mangrove forest structure, climate, and the linear relationship between climate and mangrove forest structure on the northern coast of Vietnam were analyzed using mangrove forest data measured in 28 sample plots (Dong Rui-8, Xuan Thuy National Park-12 and Lach Sung-8) and climate data collected at the meteorological stations near the study sites (Dong Rui-Tien Yen station, Xuan Thuy National Park-Van Ly station and Lach Sung-Thanh Hoa station) in the period of 1994 - 2012. Results showed that the differences in mangrove forest structure (stem diameter, biomass and basal area) and climate (temperature and rainfall) among study sites were significant (p ). That may be due to the distance between Xuan Thuy national park and Lach Sung estuary (about 50 km in north-south direction) is much shorter than distance between Dong Rui and Xuan Thuy national park (about 100 km in north-south direction) (Figure 1), and Dong Rui is located in Tien Yen Gulf and surrounded by several small islands. Table 2. Climatical differences among study sites. Variables Annual average temperature (oC) January average temperature (oC) Annual average rainfall (mm) Study sites Differences Significant level (p) Đong Rui- Xuan Thuy < Xuan Thuy-Lach Sung < Lach Sung-Đong Rui < Đong Rui- Xuan Thuy <
đang nạp các trang xem trước
