Nitrogen and Phosphorus Concentration in Leaf Litter and Soil in Xishuangbanna Tropical Forests: Does Precipitation Limitation Matter?

Mani, S.; Cao, Min

doi:10.3390/f10030242

Cited by 11 publications

(7 citation statements)

References 64 publications

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“…Forest plantation is expected to have a lower total P accumulated in the litter than natural forest, as found by Yang (2005). However, Mani and Cao (2019) also reported that the natural forest they studied had a higher total P which ranged from 600 to 700 mg kg -1 . Similarly, the control recorded a higher total P in the forest litter in the current study.…”

Section: Total Phosphorus In Forest Littermentioning

confidence: 77%

Evaluation of Carbon Stock, Nitrogen, and Phosphorus Contents in Forest Soil and Litter at Bintulu’s Acacia mangium Chronosequence Age Stand Plantation, Sarawak, Malaysia

Bakar¹,

Shamsor²,

Ong³

et al. 2022

JTAS

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Acacia mangium is the major species used in the forest plantation industry due to its fast-growing feature. However, there is still a lack of research on the nutrient concentration, specifically nitrogen (N) and phosphorus (P), as well as carbon content in Malaysia’s forest plantations. Hence, this study aimed to assess the total N and P concentrations in the soil and forest litter. Carbon content in different ages (Year 2, Year 4, and Year 9) of A. mangium plantation (together with a natural forest as a comparison) was also determined. This study was conducted in a Licensed Planted Forest, Bintulu, Sarawak, Malaysia. The natural forest was a control variable in this study. The Kjeldahl method was used to determine the total N. In contrast, dry ashing and double acid (Mehlich-1) methods were used to determine the total P in forest litter and available P in forest soil. The allometric biomass equations were used to estimate the carbon content. Total N in forest litter and forest soil was similar in all treatments. Total P in the Year 4 stand was significantly higher than in the Year 2 stand, yet, no differences were observed when compared with the control. Whereas soil available P showed no significant difference among all treatments. Acacia mangium stands recorded significantly lower total carbon content compared to the control. Old plantation stands contained much more total carbon stock than the younger stands. Also, deadwood is important in determining total carbon stock when it can account for almost 59% of above-ground biomass (AGB) carbon stock. This study revealed that forest plantations could function well in providing an adequate supply of available nutrients as well as have a potential role in carbon sink.

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Section: Total Phosphorus In Forest Littermentioning

confidence: 77%

Evaluation of Carbon Stock, Nitrogen, and Phosphorus Contents in Forest Soil and Litter at Bintulu’s Acacia mangium Chronosequence Age Stand Plantation, Sarawak, Malaysia

Bakar¹,

Shamsor²,

Ong³

et al. 2022

JTAS

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“…Second, close proximity of plants implied strong competition (Radtke et al ., 2003), so the zero distance between hemiepiphytes and their hosts suggests their intense competition. Third, P is commonly a limiting nutrient element in our study area (Han et al ., 2005; Mani & Cao, 2019) and other tropical ecosystems (Wright, 2019; Hou et al ., 2020), and competing for deficient soil nutrients is a widespread ecological process in plant communities (Baribault et al ., 2012; Carl et al ., 2018; Turner et al ., 2018). These reasons support the idea that against the background of P deficiency in tropics, P competition between hemiepiphytes and their hosts is a general phenomenon.…”

Section: Discussionmentioning

confidence: 99%

Hemiepiphytic figs kill their host trees: acquiring phosphorus is a driving factor

Corlett

Wang

et al. 2022

New Phytologist

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Hemiepiphytic figs killing their host trees is an ecological process unique to the tropics. Yet the benefits and adaptive strategies of their special life history remain poorly understood.We compared leaf phosphorus (P) content data of figs and palms worldwide, and functional traits and substrate P content of hemiepiphytic figs (Ficus tinctoria), their host palm and nonhemiepiphytic conspecifics at different growth stages in a common garden.We found that leaf P content of hemiepiphytic figs and their host palms significantly decreased when they were competing for soil resources, but that of hemiepiphytic figs recovered after host death. P availability in the canopy humus and soil decreased significantly with the growth of hemiepiphytic figs. Functional trait trade-offs of hemiepiphytic figs enabled them to adapt to the P shortage while competing with their hosts. From the common garden to a global scale, the P competition caused by high P demand of figs may be a general phenomenon.Our results suggest that P competition is an important factor causing host death, except for mechanically damaging and shading hosts. Killing hosts benefits hemiepiphytic figs by reducing interspecific P competition and better acquiring P resources in the P-deficient tropics, thereby linking the life history strategy of hemiepiphytic figs to the widespread P shortage in tropical soils.

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“…A low P concentration in soil was also found in the medium-high land of Bangladesh (Rahman et al 2017). P is the most limiting nutrient, and since the low pH and P are positively related, therefore acidic soil can further decrease P availability (Uzoho and Oti 2004;Mani and Cao 2019).…”

Section: Tablementioning

confidence: 93%

Effects of Varying Forest Management on Soil Carbon and Nutrients in Hill and Coastal Homegardens in Bangladesh

Baul

Charkraborty

Peuly

et al. 2021

J Soil Sci Plant Nutr

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Purpose For sustaining productivity and increasing biodiversity in Cox´s Bazar, a coastal area, and Bandarban, a hilly area, in Bangladesh, it is important to study the soil properties of the homegardens in these districts. We assessed the effects of varying forest management on soil carbon (C), nitrogen (N), and nutrients (P, K, Na, and Ca) between the hill and coastal homegardens. Methods Soil samples were collected from 24 homegardens; 12 from the hill and 12 from the coastal sites. ResultsIn both homegardens, the topsoil C and N stocks were up to 23% and 41%, respectively, higher than those in the deepest soil. We found a vertical decrease in C:N ratio in the soil of both homegardens, and the highest C:N ratios and C stock (49.90 Mg ha −1 ) were in the hill homegardens. The topsoil C in the hill homegardens was higher most probably due to higher deposition of litterfall and/or lower litter harvesting or mulching. The highest total N stock (5.97 Mg ha −1 ) was in the coastal homegardens, which may be due to higher tree density and species composition. The concentration and stocks of nutrients decreased vertically in the soil and this decrease was higher in the hill than in the coastal homegardens (except for P). Conclusions It could be concluded that overall nutrient dynamics may be significantly affected by litter deposition, stand structure, and the variation in the rainfall. Soil N and nutrient deficiency should be considered in the planning of sustainable forest management to sustain productivity and increase biodiversity.

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Nitrogen and Phosphorus Concentration in Leaf Litter and Soil in Xishuangbanna Tropical Forests: Does Precipitation Limitation Matter?

Cited by 11 publications

References 64 publications

Evaluation of Carbon Stock, Nitrogen, and Phosphorus Contents in Forest Soil and Litter at Bintulu’s Acacia mangium Chronosequence Age Stand Plantation, Sarawak, Malaysia

Evaluation of Carbon Stock, Nitrogen, and Phosphorus Contents in Forest Soil and Litter at Bintulu’s Acacia mangium Chronosequence Age Stand Plantation, Sarawak, Malaysia

Hemiepiphytic figs kill their host trees: acquiring phosphorus is a driving factor

Effects of Varying Forest Management on Soil Carbon and Nutrients in Hill and Coastal Homegardens in Bangladesh

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