Recovery of species composition over 46 years in a logged Australian tropical forest following different intensity silvicultural treatments

Hu, Jing; Herbohn, John; Chazdon, Robin L.; Baynes, Jack; Wills, Jarrah; Meadows, John; Sohel, Md. Shawkat Islam

doi:10.1016/j.foreco.2017.11.061

Cited by 35 publications

(24 citation statements)

References 34 publications

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“…Comparable results are corroborated in the literature (Flores et al 2014, Kusumoto et al 2015, D€ obert et al 2017. In fact, a recent study showed that, after 49 yr, the species composition of intensively managed tropical forest timber stands in Australia remained distinct (Hu et al 2018).…”

Section: Modeling Sapling Dynamics Using Functional Traits: Preferentsupporting

confidence: 81%

Understanding the Recruitment Response of Juvenile Neotropical Trees to Logging Intensity Using Functional Traits

Hogan¹,

Hérault²,

Bachelot³

et al. 2018

Bulletin Ecologic Soc America

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Section: Modeling Sapling Dynamics Using Functional Traits: Preferentsupporting

confidence: 81%

Understanding the Recruitment Response of Juvenile Neotropical Trees to Logging Intensity Using Functional Traits

Hogan¹,

Hérault²,

Bachelot³

et al. 2018

Bulletin Ecologic Soc America

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“…The recovery of forest structure after disturbance displays a widespread pattern of dynamic forest processes [49], and stem density is relatively high at intermediate disturbance times during succession [50]. Structure recovery is generally quite rapid, but species composition recovery is quite difficult and highly dependent on the pre-disturbance history [49,51]. Our study demonstrated that fallows from shifting cultivation existed at different stages of recovery, and species composition and diversity remained distinct for all tree sizes ( Table 1 and Figures 1-3), especially for adult trees in 40-year, 60-year, and old-growth communities.…”

Section: Recovery Of Forest Structure and Species Diversity In Tropicmentioning

confidence: 99%

“…Thus, early colonization of these abandoned forests by new species was hindered, resulting in lower species diversity across tree size class in the 40-year and 60-year recovery forests, especially for adult trees. Thirdly, some biotic factors, such as proximity to nearby populations [51] and seed dispersal from pioneer species, may play major roles in the early phases of succession which may increase the abundance of pioneer species [53]. Large disturbances that occurred many years ago may have also determined the tree species distribution with different life history strategies [54].…”

Section: Recovery Of Forest Structure and Species Diversity In Tropicmentioning

confidence: 99%

Recovery of Functional Diversity Following Shifting Cultivation in Tropical Monsoon Forests

Deng

Zang

2018

Forests

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The relationship between biodiversity and ecosystem functioning is an important issue in ecology. Plant functional traits and their diversity are key determinants of ecosystem function in changing environments. Understanding the successional dynamics of functional features in forest ecosystems is a first step to their sustainable management. In this study, we tested the changes in functional community composition with succession in tropical monsoon forests in Xishuangbanna, China. We sampled 33 plots at three successional stages-~40-year-old secondary forests,~60-year-old secondary forests, and old growth forests-following the abandonment of the shifting cultivation land. Community-level functional traits were calculated based on measurements of nine functional traits for 135 woody plant species. The results show that the community structures and species composition of the old-growth forests were significantly different to those of the secondary stands. The species diversity, including species richness (S), the Shannon-Weaver index (H), and Pielou's evenness (J), significantly increased during the recovery process after shifting cultivation. The seven studied leaf functional traits (deciduousness, specific leaf area, leaf dry matter content, leaf nitrogen content, leaf phosphorus content, leaf potassium content and leaf carbon content) changed from conservative to acquisitive syndromes during the recovery process, whereas wood density showed the opposite pattern, and seed mass showed no significant change, suggesting that leaf traits are more sensitive to environmental changes than wood or seed traits. The functional richness increased during the recovery process, whereas the functional evenness and divergence had the highest values in the 60-year-old secondary communities. Soil nutrients significantly influenced functional traits, but their effects on functional diversity were less obvious during the secondary succession after shifting cultivation. Our study indicates that the recovery of tropical monsoon forests is rather slow; secondary stands recover far less than the old growth stands in terms of community structure and species and functional diversity, even after about half a century of recovery, highlighting the importance of the conservation of old growth tropical monsoon forest ecosystems.

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“…paper, low grade construction timber). From this perspective, our study suggests that there is high potential of sustainably managed tropical secondary forests with sufficient logging rotation periods to act as substantial carbon sinks as well as reservoirs for forest biodiversity Hu et al, 2018;.…”

Section: Potential Of Biomass Recovery In Logged and Silviculturally-mentioning

confidence: 92%

“…In the same study site under the same Expt. 408, Hu et al (2018) found that selective logging, low-and medium-intensity silvicultural treatments did not alter the species composition of tropical forests greatly, and the species composition following high-intensity silvicultural treatments recovered partially within 46 years.…”

Section: Potential Of Biomass Recovery In Logged and Silviculturally-mentioning

confidence: 95%

Recovery of a logged Australian tropical forest followed by different intensity silvicultural treatments over 48 years: trade-offs between conservation values and commercial timber volume

Hu¹

Self Cite

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Currently, more than 400 million hectares of tropical forests in the world are managed for timber production. Silvicultural treatments following logging that remove stems of low commercial value to reduce competition were considered as an effective tool to enhance the growth and abundance of commercial trees. However, these silvicultural treatments will reduce biomass, likely initially reduce species diversity and may also cause changes in species composition. With a stronger focus on the conservation values of tropical forests today, how to maintain a balance between timber extraction and the conservation values of tropical forests is a central problem in sustainable tropical forest management. Permanent plots were established in a tropical rainforest in north Queensland in 1967. Following selective logging in 1968/69, four treatments were applied in this experiment: selective logging only with no subsequent silvicultural treatment as a control (L), logging followed by lowintensity silvicultural treatment (LT), logging followed by medium-intensity silvicultural treatment (MT), and logging followed by high-intensity silvicultural treatment (HT). Trees above 10 cm diameter at breast height (DBH) in all treatments were inventoried in 1967 (before logging), 1969

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Recovery of species composition over 46 years in a logged Australian tropical forest following different intensity silvicultural treatments

Cited by 35 publications

References 34 publications

Understanding the Recruitment Response of Juvenile Neotropical Trees to Logging Intensity Using Functional Traits

Understanding the Recruitment Response of Juvenile Neotropical Trees to Logging Intensity Using Functional Traits

Recovery of Functional Diversity Following Shifting Cultivation in Tropical Monsoon Forests

Recovery of a logged Australian tropical forest followed by different intensity silvicultural treatments over 48 years: trade-offs between conservation values and commercial timber volume

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Recovery of species composition over 46 years in a logged Australian tropical forest following different intensity silvicultural treatments

Cited by 35 publications

References 34 publications

Understanding the Recruitment Response of Juvenile Neotropical Trees to Logging Intensity Using Functional Traits

Understanding the Recruitment Response of Juvenile Neotropical Trees to Logging Intensity Using Functional Traits

Recovery of Functional Diversity Following Shifting Cultivation in Tropical Monsoon Forests

Recovery of a logged Australian tropical forest followed by different intensity silvicultural treatments over 48 years: trade-offs between conservation values and commercial timber volume ​​​​​​​

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Recovery of species composition over 46 years in a logged Australian tropical forest following different intensity silvicultural treatments

Recovery of a logged Australian tropical forest followed by different intensity silvicultural treatments over 48 years: trade-offs between conservation values and commercial timber volume