DOI: 10.1016/j.foreco.2013.09.023
Scopus记录号: 2-s2.0-84888136167
论文题名: Effects of soil compaction on the growth and mortality of planted dipterocarp seedlings in a logged-over tropical rainforest in Sarawak, Malaysia
作者: Hattori D. ; Kenzo T. ; Irino K.O. ; Kendawang J.J. ; Ninomiya I. ; Sakurai K.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2013
卷: 310 起始页码: 770
结束页码: 776
语种: 英语
英文关键词: Borneo
; Enrichment planting
; Root elongation
; Skid trail
; Soil disturbance
Scopus关键词: Borneo
; Dipterocarp seedlings
; Lateral root lengths
; Penetration resistances
; Root elongation
; Skid trails
; Soil disturbances
; Soil penetration resistance
; Elongation
; Forestry
; Plants (botany)
; Soil mechanics
; Soil moisture
; Tropics
; Seed
; bulk density
; commercial species
; compaction
; dicotyledon
; disturbance
; growth
; growth rate
; inhibition
; logging (timber)
; mortality
; rainforest
; seedling
; soil moisture
; tropical environment
; tropical forest
; Elongation
; Forestry
; Plants
; Seeds
; Soil
; Tropics
; Borneo
; East Malaysia
; Malaysia
; Sarawak
英文摘要: Tropical rainforests in Southeast Asia have been degraded by commercial logging, and the use of heavy equipment in these operations has increased soil compaction. We conducted enrichment planting 20years after logging in a tropical forest in Borneo to evaluate the effects of soil compaction on the growth and mortality of planted dipterocarp seedlings over seven years. We planted the seedlings in sites that had been impacted to varying degrees, including a skid trail and undisturbed areas. We measured soil nutrients, moisture content, bulk density, penetration resistance, and light conditions. Seedling mortality, height, and shoot diameter were also determined 0, 12, 24, and 81months after planting. Elongation rates of tap and lateral roots were measured 24months after planting. We also excavated seedlings 81months after planting, and compared heights, shoot diameters, tap root length, and lateral root length between compacted and undisturbed soils. Bulk density varied in the range of 0.98-1.61gcm-3 and correlated with soil penetration resistance. Surface soil (0-20cm depth) in the compacted area had two to three times more resistance to penetration than did undisturbed soils. Surface soil penetration resistance significantly increased seedling mortality during the early planting period (0-12months), but mortality in the later periods (12-24 and 24-81months) did not relate to the soil penetration resistance. The lateral root growth rate in the early planting period (0-24months) was also significantly inhibited by penetration resistance, but tap root growth was not. Penetration resistance did not reduce the seedling growth rate in the periods 0-12 and 12-24months after planting, and higher soil moisture promoted seedling shoot diameter growth in the same time periods. Lateral root elongation did not differ between compacted and undisturbed forest soils 81months after planting, but tap root elongation was inhibited in the compacted area at that time. Our results suggest that soil compaction negatively affect root elongation and initial seedling survival of planted dipterocarp trees even in 20years after logging operation in Bornean tropical rainforest. © 2013 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66325
Appears in Collections: 影响、适应和脆弱性
There are no files associated with this item.
作者单位: United Graduate School of Agricultural Sciences, Ehime University, Matsuyama 790-8566, Japan; Forestry and Forest Products Research Institute, Tsukuba 305-8687, Japan; Center for Cooperative Research and Development, Ehime University, Bunkyo-cho 3, Matsuyama 790-8577, Japan; Sarawak Planted Forest, Wisma Sumber Alam, Jalan Stadium, Petra Jaya, 93660 Kuching, Sarawak, Malaysia; Faculty of Agriculture, Ehime University, Matsuyama, Ehime 790-8566, Japan; Faculty of Agriculture, Kochi University, Nankoku 783-8502, Japan
Recommended Citation:
Hattori D.,Kenzo T.,Irino K.O.,et al. Effects of soil compaction on the growth and mortality of planted dipterocarp seedlings in a logged-over tropical rainforest in Sarawak, Malaysia[J]. Forest Ecology and Management,2013-01-01,310