Forest observational studies: an alternative to designed experiments

Gadow, Klaus von; Zhao, Xiu Hai; Tewari, V. P.; Zhang, Chun Yu; Kumar, Ashwani; Rivas, José; Kumar, Rajesh

doi:10.1007/s10342-016-0952-0

Cited by 16 publications

(5 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“… 33 and Gadow et al . 34 . Detailed information about the vegetation in the large HF, MF and OGF permanent observational studies are presented by Zhang et al .…”

Section: Methodsmentioning

confidence: 99%

Effects of density dependence in a temperate forest in northeastern China

Yao

Zhang

et al. 2016

Sci Rep

View full text Add to dashboard Cite

Negative density dependence may cause reduced clustering among individuals of the same species, and evidence is accumulating that conspecific density-dependent self-thinning is an important mechanism regulating the spatial structure of plant populations. This study evaluates that specific density dependence in three very large observational studies representing three successional stages in a temperate forest in northeastern China. The methods include standard spatial point pattern analysis and a heterogeneous Poisson process as the null model to eliminate the effects of habitat heterogeneity. The results show that most of the species exhibit conspecific density-dependent self-thinning. In the early successional stage 11 of the 16 species, in the intermediate successional stage 18 of the 21 species and in the old growth stage all 21 species exhibited density dependence after removing the effects of habitat heterogeneity. The prevalence of density dependence thus varies among the three successional stages and exhibits an increase with increasing successional stage. The proportion of species showing density dependence varied depending on whether habitat heterogeneity was removed or not. Furthermore, the strength of density dependence is closely related with species abundance. Abundant species with high conspecific aggregation tend to exhibit greater density dependence than rare species.

show abstract

“… 33 and Gadow et al . 34 . Detailed information about the vegetation in the large HF, MF and OGF permanent observational studies are presented by Zhang et al .…”

Section: Methodsmentioning

confidence: 99%

Effects of density dependence in a temperate forest in northeastern China

Yao

Zhang

et al. 2016

Sci Rep

View full text Add to dashboard Cite

show abstract

“…Cabe destacar, que para referirse al monitoreo silvícola y forestal en el norte de México es recomendable considerar el sistema de monitoreo establecido en el estado de Durango, cuyos datos se pueden consultar en el sistema Monafor. A partir de este esfuerzo digital, se ha iniciado un proceso de remediciones, que ha permitido identificar información relevante en relación con los incrementos maderables y que se hayan generado herramientas para el manejo silvícola, como guías de densidad y ecuaciones de crecimiento de las estructuras del arbolado, así como la validación de los sistemas de planeación para el manejo de los bosques de la región (von Gadow et al, 2016;Corral-Rivas et al, 2019;Quiñonez-Barraza et al, 2018) Por otra parte, el uso de sensores remotos, en el ámbito internacional se ha convertido en una herramienta de fácil acceso y con alta confiabilidad para el monitoreo de los bosques (De León et al, 2014;Saarinen et al, 2018). Entre las principales variables posibles de monitorear a través del uso de sensores remotos están la pérdida de cubierta forestal, la fragmentación de los bosques, la captura de carbono, incendios y plagas forestales, así como los cambios en el uso del suelo (Banskota et al, 2014).…”

Section: Discussionunclassified

monitoreo forestal por medio de Sitios Permanentes de Investigación Silvícola en Chihuahua, México

Martínez-Salvador

Pérez

Sotelo

et al. 2019

RMCF

View full text Add to dashboard Cite

El monitoreo forestal es de gran interés para integrar bases de datos que permitan generar conocimiento y nuevas tecnologías para optimizar la producción, proteger los recursos y acrecentar el valor de los bosques, a través del manejo forestal sustentable. En el estado de Chihuahua, el monitoreo para el desarrollo de conocimiento científico relativo a estos ecosistemas se inició en 1950 con el establecimiento del primer Sitio Permanente, de Investigación Silvícola (SPIS), en el paraje conocido como “El Poleo”, el cual se ubica en el norte del municipio Madera. En la década de 1980-1990 se establecieron 234 parcelas en el área experimental del INIFAP, localizada en la región sur del ejido El Largo; de 1990 a 2000, se implementaron 48 parcelas en el municipio Bocoyna y 16 en el municipio Guachochi, como parte del proyecto: Bosque Modelo. Finalmente, entre 1998 y 2001 se delimitaron 48 parcelas en el municipio Guadalupe y Calvo con el apoyo del Programa de Desarrollo Forestal (Prodefor). Las parcelas localizadas en El Poleo, Madera, Llano blanco, así como Guadalupe y Calvo tienen datos de remediciones periódicas; las cuales muestran incrementos medios anuales superiores a 4 m3ha-1, con registros de hasta 16 m3ha-1 en el sur de la entidad. La información histórica y las bases de datos de los SPIS son un valioso antecedente para el seguimiento de los programas de monitoreo y el desarrollo de métodos silvícolas para el manejo sustentable de los bosques de la región.

show abstract

“…A Forest Observational Studies (FOS) network would ensure effective monitoring and analysis of forest ecosystems covering a range of topics, including changes in ecosystem structure and diversity, response to natural disturbances, as well as tree mortality and regeneration. Data from Forest Observational Studies that are collected over long periods of time can effectively complement the observations of a National Forest Inventory (Gadow et al 2016).…”

Section: New Observational Studiesmentioning

confidence: 99%

Climate change effects in the Western Himalayan ecosystems of India: evidence and strategies

2017

View full text Add to dashboard Cite

Background: The fragile landscapes of the Himalayan region are highly susceptible to natural hazards, and there is ongoing concern about current and potential climate change impacts. This study provides background information on India's Western Himalayas and reviews evidence of warming as well as variability in precipitation and extreme events. Methods: Understanding and anticipating the impacts of climate change on Himalayan forest ecosystems and the services they provide to people are critical. Efforts to develop and implement effective policies and management strategies for climate change mitigation and adaptation requires particular new research initiatives. The various studies initiated and conducted in the region are compiled here. Results: Several new initiatives taken by the Himalayan Forest Research Institute in Shimla are described. This includes new permanent observational field studies, some with mapped trees, in high altitude transitional zones for continuous monitoring of vegetation response. We have also presented new strategies for mitigating potential climate change effects in Himalayan forest ecosystems. Conclusions: Assessment of the ecological and genetic diversity of the Himalayan conifers is required to evaluate potential responses to changing climatic conditions. Conservation strategies for the important temperate medicinal plants need to be developed. The impact of climate change on insects and pathogens in the Himalayas also need to be assessed. Coordinated efforts are necessary to develop effective strategies for adaptation and mitigation.

show abstract

Forest observational studies: an alternative to designed experiments

Cited by 16 publications

References 53 publications

Effects of density dependence in a temperate forest in northeastern China

Effects of density dependence in a temperate forest in northeastern China

monitoreo forestal por medio de Sitios Permanentes de Investigación Silvícola en Chihuahua, México

Climate change effects in the Western Himalayan ecosystems of India: evidence and strategies

Contact Info

Product

Resources

About