Light Condition Change by Different Logging Systems in Lowland Dipterocarp Forest

Authors: T. Inada, M. Kanzaki, W. Ano, S. Hardiwinoto, R. Sadono

Abstract:

In a lowland dipterocarp forest, we assessed the impact of canopy openness (CO) and the resultant changes under different logging systems using hemispherical photography. CO was assessed in a primary forest and two forests logged selectively  using reduced impact logging. At one site, 3-m-wide strip cutting was conducted for line planting. From the comparison of CO among the three sites, we found significant changes caused by logging. However, no significant difference was observed between the two logged sites. Strip cutting treatment did not affect CO. One year after, significant canopy closure occurred in both of the logged sites. Canopy closure was significant regardless of the disturbance element, logging gap, skid trail, or strip cutting line. Significant establishment of seedlings within a year was observed in the strip cutting line. Seedling establishment seemed to contribute to rapid canopy closure and prospected to affect to the survival and growth of planted trees.

Keywords: Hemispherical photography, light condition, lowland dipterocarp forest, selective logging.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1087053

References:

[1] Whitmore T. C., 1990, An introduction to tropical rain forests. Oxford University Press, UK.
[2] Slik J. W. F., Poulsen A. D., Ashton P. S., Cannon C. H. and Eichhorn K. A. O., 2003, A floristic analysis of the lowland dipterocarp forests of Borneo. Journal of Biogeography, 30, 1517-1531.
[3] Cruz R.D., 2005, Borneo's Lost World: Newly Discovered Species on Borneo, WWF-Indonesia, Jakarta.
[4] Sovu, Tigabu M., Savadogo P., Odén P. C. and Xayvongsa L., 2010, Enrichment planting in a logged-over tropical mixed deciduous forest of Laos. Journal of Forestry Research, 21 (3). 273-280
[5] Denslow J. S., 1987, Tropical Rainforest Gaps and Tree Species Diversity. Annual Review of Ecology and Systematics, 18 (1), 431-451.
[6] Slik J. W. F., Verburg R. W. and Kessler P. J. A., 2002, Effects of fire and selective logging on the tree species composition of lowland dipterocarp forest in East Kalimantan, Indonesia. Biodiversity and Conservation 11, 85-98.
[7] Putz F. E., Zuidema P. A., Synnott T., Peña-Claros M., Pinard M. A., Sheil D., Vanclay J. K., Sist P., Gourlet-Fleury S., Griscom B., Palmer J. and Zagt R., 2012, Sustaining conservation values in selectively logged tropical forests: the attained and the attainable. Conservation Letters, 5, 296–303.
[8] Pinard M., Putz F.E., Tay J., Sullivan T., 1995, Creating timber harvesting guidelines for a reduced-impact logging project in Malaysia. J. For. 93, 41-45.
[9] Nawir A. A., Murniati and Rumboko L., Forest rehabilitation in Indonesia:Where to after three decades, 2007, CIFOR, Bogor, Indonesia.
[10] Ådjers G. 1995, Enrichment planting of dipterocarps in logged-over secondary forests: effect of width, direction and maintenance method of planting line on selected Shorea species. Forest Ecology and Management, 73, 259-270.
[11] Tuomela K., Kuusipalo J., Vesa L., Nuryanto K., Sagala A. and Adjers G. 1996, Growth of dipterocarp seedlings in artificial gaps: An experiment in a logged-over rainforest in South Kalimantan, Indonesia. Forest Ecology and Management 81, 95-100.
[12] Romell E., Hallsby G., Karlsson A. and Garcia C. 2008, Artificial canopy gaps in a Macaranga spp. dominated secondary tropical rain forest — Effects on survival and above ground increment of four under-planted dipterocarp species. Forest Ecology and Management 255, 1452-1460.
[13] Chazdon R. L., Field C.B. 1987, Photographic estimation of photosynthetically active radiation: evaluation of a computerized technique. Oecologia 73, 525-532.
[14] Rich P. M. 1989, A manual for analysis of hemispherical canopy photography. Los Alamos National Laboratory, Los Alamos, NM.
[15] Rich P. M., Clark D. B., Clark D. A. and Oberbauer S. F. 1993, Long-term study of solar radiation regimes in a tropical wet forest using quantum sensors and hemispherical photography. Agricultural and Forest Meteorology 65, 107-127.
[16] Frazer G. W., Fournier R. A., Trofymow J.A. and Hall R. J. 2001, A comparison of digital and film fisheye photography for analysis of forest canopy structure. Agricultural and Forest Meteorology 109, 249-263.
[17] Tani A., Ito E., Tsujino M., Araki M. and Kanzaki M. 2011, Threshold determination by reference to open sky overcomes photographic exposure error in indirect leaf area index estimation. Japanese Journal of Forest Environment 53(2), 41-52.
[18] Frazer G. W., Canham C. D., and Lertzman K.P. 1999, Gap Light Analyzer (GLA), Version 2.0: Imaging software to extract canopy structure and gap light transmission indices from true-colour fisheye photographs, users manual and program documentation. Copyright © 1999: Simon Fraser University, Burnaby, British Columbia, and the Institute of Ecosystem Studies, Millbrook, New York.
[19] Jarčuška B. 2008, Methodological overview to hemispherical photography, demonstrated on an example of software GLA. Folia Oecologica 35, 66-69.
[20] Montgomery R. A., Chazdon R. L. 2001, Forest structure, canopy architecture and light transmittance in tropical wet forests. Ecology 82, 2707-2718.
[21] Romell E., Karlsson A. 2009, Forest floor light conditions in a secondary tropical rain forest after artificial gap creation in northern Borneo. Agricultural and Forest Meteorology, 149, 929–937.
[22] Silbernagel J., Moeur M., 2001, Modeling canopy openness and understory gap patterns based on image analysis and mapped tree data. Forest Ecology and Management 149: 217-233.