Assessment of Carbon Stock in Chronosequence Rehabilitated Tropical Forest Stands in Malaysia

Abstract

The loss and degradation in tropical forest region are some of the current global concern. Hence, these issues elevated the role of rehabilitated forests in providing ecological products and services. The information on the carbon stock is important in relation to global carbon and biomass use, but lacking from the tropical region. This paper reports the assessment of tree and soil carbon stock in a chronosequence rehabilitated tropical forest stands in Malaysia. The study site was at the UPM-Mitsubishi Forest Rehabilitation Project, UPMKB. 20×20 m plot was established each and assessed in 2009 at 1-, 10-and 19-year-old sites while an adjacent ±23-year-old natural regenerating secondary forest plot was established for comparison. The overall total carbon stock was in the order of 19-year-old＞±23-year-old＞ 10-year-old＞1-year-old. When forest carbon stock is low, the soil component plays an important role in the carbon storage. The forest carbon recovery is crucial to increase soil carbon stock. The variations in the carbon stock showed the different stages of the forest recovery. Species survived after 19-years of planting are potential species for carbon sequestration activities in rehabilitated forest. Human intervention in rehabilitating degraded forest areas through tree planting initiatives is crucial towards recovering the forest ecological role especially in forest carbon stock capacity.

Effects of Soil Compaction and Relative Light Intensity on Survival and Growth Performance of Planted Shorea macrophylla (de Vriese) in Riparian Forest along Kayan Ulu River, Sarawak, Malaysia

“…This order also held for average volume with values of 4.93 m 3 ha −1 , 3.30 m 3 ha −1 , 1.13 m 3 ha −1 , and 1.26 m 3 ha −1 . Our current study showed favourable growth performance of S. macrophylla in all study plots compared to the distribution of average tree height and DBH in rehabilitated forest stated by Jui et al [30] were mostly S. macrophylla aged 19 years with the value of 9.30 m and 8.16 cm, respectively. The growth pattern of planted S. macrophylla was examined in terms of MAIH, MAID, and MAIV ( Table 2).…”

Plant mercury accumulation and litter input to a Northern Sedge-dominated Peatland

“…A study found that approximately 77 % N, 57 % phosphorus (P), and 44 % potassium (K) were translocated out of senescing leaves during mangrove leaf senescence (Wang et al, 2003). Foliar C is sequestrating continuously over the growing season (Kueh et al, 2013). The element re-translocation and C sequestration in leaves may lead to the foliar % C increase with time.…”