scholarly journals Forest health study in efforts to preserve community forest agroforestry patterns in Kubu Batu Village, Gedong Tataan District, Pesawaran Regency, Lampung Province

2021 ◽  
Vol 886 (1) ◽  
pp. 012075
Author(s):  
Eka Nala Puspita ◽  
Rahmat Safe’i ◽  
Hari Kaskoyo

Abstract The agroforestry pattern community forest in Kubu Batu Village, Gedong Tataan District, Pesawaran Regency, Lampung Province has essential values for the community, both economically, ecologically, and socially. Therefore, to ensure the sustainability of the community forest, a forest health assessment is carried out. Forest health assessment is one of the criteria for achieving community forest sustainability. This study aims to determine the condition (status) and ecological factors that affect the health level of community forests using agroforestry patterns in Kubu Batu Village, Gedong Tataan District, Pesawaran Regency, Lampung Province. The research methods used are the Forest Health Monitoring method to measure forest health with the Forest Health Assessment Information System (SIPUT) and sperm rank correlation to determine the relationship between ecological factors and the health level community forests using agroforestry patterns. The results showed the condition (status) of community forest health in agroforestry patterns with good categories in cluster plots 2, 4, 5, and 6, moderate categories in cluster plots 1 and 7, and bad categories in cluster plots 3. Strongly positive/unidirectional agroforestry patterns are the crown condition and tree species diversity. This condition illustrates that it preserves community forests using agroforestry patterns in Kubu Batu Village is necessary to focus tree species diversity attention on tree crown parameters. Thus, the health status of community forest agroforestry patterns in Kubu Batu Village is good. This proves that the people there have made efforts to maintain the sustainability of their community forests.

2021 ◽  
Vol 14 ◽  
pp. 194008292199541
Author(s):  
Xavier Haro-Carrión ◽  
Bette Loiselle ◽  
Francis E. Putz

Tropical dry forests (TDF) are highly threatened ecosystems that are often fragmented due to land-cover change. Using plot inventories, we analyzed tree species diversity, community composition and aboveground biomass patterns across mature (MF) and secondary forests of about 25 years since cattle ranching ceased (SF), 10–20-year-old plantations (PL), and pastures in a TDF landscape in Ecuador. Tree diversity was highest in MF followed by SF, pastures and PL, but many endemic and endangered species occurred in both MF and SF, which demonstrates the importance of SF for species conservation. Stem density was higher in PL, followed by SF, MF and pastures. Community composition differed between MF and SF due to the presence of different specialist species. Some SF specialists also occurred in pastures, and all species found in pastures were also recorded in SF indicating a resemblance between these two land-cover types even after 25 years of succession. Aboveground biomass was highest in MF, but SF and Tectona grandis PL exhibited similar numbers followed by Schizolobium parahyba PL, Ochroma pyramidale PL and pastures. These findings indicate that although species-poor, some PL equal or surpass SF in aboveground biomass, which highlights the critical importance of incorporating biodiversity, among other ecosystem services, to carbon sequestration initiatives. This research contributes to understanding biodiversity conservation across a mosaic of land-cover types in a TDF landscape.


2006 ◽  
Vol 36 (2) ◽  
pp. 324-336 ◽  
Author(s):  
Julia Koricheva ◽  
Harri Vehviläinen ◽  
Janne Riihimäki ◽  
Kai Ruohomäki ◽  
Pekka Kaitaniemi ◽  
...  

Pure forest stands are widely believed to be more prone to pest outbreaks and disease epidemics than mixed stands, leading to recommendations of using stand diversification as a means of controlling forest pests and pathogens. We review the existing evidence concerning the effects of stand tree-species diversity on pests and pathogens in forests of the boreal zone. Experimental data from published studies provide no overall support for the hypothesis that diversification of tree stands can prevent pest outbreaks and disease epidemics. Although beneficial effects of tree-species diversity on stand vulnerability are observed in some cases, in terms of reductions in damage, these effects are not consistent over time and space and seem to depend more on tree-species composition than on tree-species diversity per se. In addition, while mixed stands may reduce the densities of some specialized herbivores, they may be more attractive to generalist herbivores. Given that generalist mammalian herbivores cause considerable tree mortality during the early stages of stand establishment in boreal forests, the net effect of stand diversification on stand damage is unlikely to be positive.


2017 ◽  
Vol 7 (19) ◽  
pp. 7965-7974 ◽  
Author(s):  
Rim Khlifa ◽  
Alain Paquette ◽  
Christian Messier ◽  
Peter B. Reich ◽  
Alison D. Munson

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