Growth performance of planted mangroves in the Philippines: Revisiting forest management strategies

Ambio

Volumn 37, Issue 4, 2008, Pages 234-240

  Samson, Maricar S ^a   Rollon, Rene N ^b  

^a University of the Philippines Diliman   (Philippines)

^b University of the Philippines Diliman   (Philippines)

Author keywords

[No Author keywords available]

Indexed keywords

ENVIRONMENTAL RESTORATION; FOREST MANAGEMENT; GROWTH RESPONSE; MANGROVE; PERFORMANCE ASSESSMENT; REVEGETATION; SURVIVAL;

ANGIOSPERM; ENVIRONMENTAL PROTECTION; GROWTH, DEVELOPMENT AND AGING; PHILIPPINES; REVIEW; TREE;

ANGIOSPERMS; CONSERVATION OF NATURAL RESOURCES; PHILIPPINES; TREES;

ASIA; EURASIA; PHILIPPINES; SOUTHEAST ASIA;

RHIZOPHORA; RHIZOPHORACEAE;

EID: 48249155713     PISSN: 00447447     EISSN: None     Source Type: Journal    
DOI: 10.1579/0044-7447(2008)37[234:GPOPMI]2.0.CO;2     Document Type: Review

References (47)

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16. As part of the activities of these research projects (11, 12, 19-21), a series of consultation meetings, focus group discussions, conferences, and workshops were carried out to gather information, particularly those which could not be obtained from existing literature.
17. Roughly, the further breakdown would include: PhP 5000 (USD 100) for propagules; PhP 10 000 (USD 200) for labor; PhP 3500 (USD 70) for transportation, and PhP 1500 (USD 30) for fence and other materials. This estimate does not include expenses for redundancies (18), subsequent monitoring, maintenance, and/or replanting activities.
18. A spacing of 1 m apart between seedlings has been recommended by the Department of Environment and Natural Resources (DENR), Philippines (14). This spacing recommendation has been strictly followed across the country, although in many cases (11, 12, 19-21), 2-5 seedlings were planted together on the same spot at the same time (redundancy), apparently hoping that at least 1 would survive.
19. A study on the accumulated sediment loading in Bolinao, Anda, Bani, and Alaminos (Pangasinan) under the SAGIP-Lingayen Project, 2005-2006.
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25. In a number of sites in Calauag and Tayabas Bays, we tagged Rhizophora spp. individuals to determine the plastochron interval (PI). For each of the sites, we counted the number of leaf-pairs produced by each of the 100-150 tagged trees during a period of 1-2 months. The plastochron intervals were then calculated (see also 23-24). Our results were comparable to those obtained from an earlier study on Rhizophora spp. trees elsewhere (Pangasinan), reflecting values of PI ca. 40 days (26). Doing such study in four quarters of the year 2001, Salmo (26) did not find significant differences across these quarters.
26. Republic Act No. 8550. An act providing for the development, management, and conservation of the fisheries and aquatic resources, integrating all laws pertinent thereto, and for other purposes. Otherwise known as "The Philippine Fisheries Code of 1998," signed into Law, 25 February 1998.
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34. -1).
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44. Aliño, P.M., McManus, L.T., Fortes, M.D., Trono, G.C., Jacinto, G.S. and Yap, H.T. 1994. Calauag Bay Resource and Ecological Assessment. Final Technical Report, Environmental Primemovers of Asia, Inc., Philippines, 305 pp.
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46. The authors are grateful to several funding agencies (11, 12, 19-21) making possible all these surveys covering a wide geographic area across the country. We are also indebted to a long list of local people assisting us in the task of cutting across these mangrove forests and for always making such experiences full of fun despite the extreme logistical difficulties. We thank the two anonymous reviewers for their valuable suggestions.
47. First submitted 11 May 2007. Accepted for publication 16 September 2007.