臺灣東北部海岸防風林更新造林對土壤碳吸存之效應
Other Title
Contribution of Reforestation Practice to Soil Carbon Sequestration in Seashore Windbreak Forest of Northeastern Taiwan
Journal
土壤與環境
Journal Volume
17卷
Journal Volume
17
Journal Issue
1&2期
Journal Issue
1&2
Pages
51-63
Start Page
51
End Page
63
Date Issued
2014-12
Author(s)
Abstract
本研究以臺灣東北部萬里地區海岸防風林造林地為研究區域，研究區在2004年11月完成造林的工作。在對照組樣區與造林處理樣區分別選取10個(C1~C10)與40個(T1~T40)3m × 5m的方格進行土壤與地表枯落物的採集，主要的研究目的為評估與探討海岸林造林之後，土壤碳吸存量的變化以及造林對土壤碳吸存之效應。研究結果指出：研究區位於海岸沙地，土壤剖面沒有明顯的形態上的變化，可歸類為典型濕潤砂質新成土(Typic Udipsamments)；目前造林的效益對土壤總體密度沒有顯著影響(p ＞ 0.05)。研究區之海岸造林對於土壤碳吸存量的累積有顯著的成效：研究區對照組樣區之枯落物與土壤碳存量(0-100cm)總合為3.25 tons ha^(-1)，造林處理樣區為10.6 tons ha^(-1)，對照樣區枯落物與土壤的碳累積或吸存速率(94~101年)為0.41 tons ha^(-1) yr^(-1)，造林處理樣區枯落物與土壤的碳累積或吸存速率為1.33 tons ha^(-1)yr^(-1)。造林處理樣區為對照樣區的3.2倍。臺灣地區每年的颱風與東北季風的侵襲，對於濱海海岸林生長與存續的影響相當大。本研究結果指出：海岸林確實的造林計畫與維護管理，特別是防風竹籬的管理，對於海岸林生長與存續有正面的效益。
The study area was located at seashore, Wanli Township, Northeastern Taiwan. Reforestation was conducted in November, 2004. Litter fall and soil (0-5, 5-10, 10-30, 30-50, and 50-100 cm) were sampled by grid method (3 m × 5 m per grid), and each grid has three replicates for litterfall samples, and two replicates for soil samples. The control has ten grids (C1~C10) and the treatment has 40 grids (T1~T40). The main objective of this study was to evaluate and investigate the changes and effects of soil carbon sequestration after reforestation. The study results indicated that there is no obviously morphological change within soil profile, and the soil was classified as Typic Udipsamments based on Keys to Soil Taxonomy. The reforestation has no effect on soil bulk density. In addition, seashore reforestation has significant cumulative effect on soil carbon stocks in the study area. The summation of litter and soil carbon sequestration (0-100 cm) was 3.25 tons ha^(-1) in the control area, and it was 10.6 tons ha^(-1) in the treatment area. The summation of litter and soil carbon sequestration rate (2005~2012) indicated that it was 0.41 tons ha^(-1) yr^(-1) increased in control area and 1.33 tons ha^(-1) yr^(-1) increased in treatment area. The summation of litter and soil carbon sequestration in treatment area was 3.2 times than in control area. In Taiwan the frequently interference of typhoon and northeastern monsoon has great influence on the growth and survival of seashore windbreak forest. The results of this study suggested that indeed seashore forest reforestation projects and maintenance management, in particular the management of windproof bamboo fence, have a positive effect on the growth and survival for the seashore forest.
Subjects
更新造林
森林碳吸存
海岸林
土壤碳吸存
新成土
reforestation practice
forest carbon sequestration
seashore forest
soil carbon sequestration
Entisols
Publisher
中華土壤肥料學會
Type
journal article