Perspectives and Methods of Scaling

Wu, Jianguo; Li, Harbin

doi:10.1007/1-4020-4663-4_2

Cited by 19 publications

(12 citation statements)

References 92 publications

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“…This has resulted in the development of a range of multi-scale methods for identifying ''intrinsic'' scales in ecosystems, largely arising out of work on hierarchy theory in landscape ecology (Wu and Li 2006). However, the information needed to make such informed decisions is often considerable (Addicott et al 1987).…”

Section: Identification Of Scalesmentioning

confidence: 99%

Discontinuities, cross‐scale patterns, and the organization of ecosystems

Nash

Allen

Angeler

et al. 2014

Ecology

113

130

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Abstract. Ecological structures and processes occur at specific spatiotemporal scales, and interactions that occur across multiple scales mediate scale-specific (e.g., individual, community, local, or regional) responses to disturbance. Despite the importance of scale, explicitly incorporating a multi-scale perspective into research and management actions remains a challenge. The discontinuity hypothesis provides a fertile avenue for addressing this problem by linking measureable proxies to inherent scales of structure within ecosystems. Here we outline the conceptual framework underlying discontinuities and review the evidence supporting the discontinuity hypothesis in ecological systems. Next we explore the utility of this approach for understanding cross-scale patterns and the organization of ecosystems by describing recent advances for examining nonlinear responses to disturbance and phenomena such as extinctions, invasions, and resilience. To stimulate new research, we present methods for performing discontinuity analysis, detail outstanding knowledge gaps, and discuss potential approaches for addressing these gaps.

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Section: Identification Of Scalesmentioning

confidence: 99%

Discontinuities, cross‐scale patterns, and the organization of ecosystems

Nash

Allen

Angeler

et al. 2014

Ecology

113

130

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show abstract

“…The AEM can model the deep root distribution of desert plants and the related C and water processes in deep soil. The inventory approach can make full use of the observational data but cannot reflect the spatiotemporal patterns of C pools in response to environmental controls; the modeling approach can predict environmental effects but has lower thematic resolution due to the limitation in computational efficiency and difficulties in model parameterization (Wu & Li, ). Using the two complementary approaches, this study aimed to assess the size and distribution of the ecosystem C stock in Central Asia's drylands and characterize the spatiotemporal responses of the C pools to changing climate at the regional scale.…”

Section: Introductionmentioning

confidence: 99%

Carbon stock and its responses to climate change inCentralAsia

Zhang

Luo

et al. 2015

Global Change Biology

169

102

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Central Asia has a land area of 5.6 × 10(6) km(2) and contains 80-90% of the world's temperate deserts. Yet it is one of the least characterized areas in the estimation of the global carbon (C) stock/balance. This study assessed the sizes and spatiotemporal patterns of C pools in Central Asia using both inventory (based on 353 biomass and 284 soil samples) and process-based modeling approaches. The results showed that the C stock in Central Asia was 31.34-34.16 Pg in the top 1-m soil with another 10.42-11.43 Pg stored in deep soil (1-3 m) of the temperate deserts. They amounted to 18-24% of the global C stock in deserts and dry shrublands. The C stock was comparable to that of the neighboring regions in Eurasia or major drylands around the world (e.g. Australia). However, 90% of Central Asia C pool was stored in soil, and the fraction was much higher than in other regions. Compared to hot deserts of the world, the temperate deserts in Central Asia had relatively high soil organic carbon density. The C stock in Central Asia is under threat from dramatic climate change. During a decadal drought between 1998 and 2008, which was possibly related to protracted La Niña episodes, the dryland lost approximately 0.46 Pg C from 1979 to 2011. The largest C losses were found in northern Kazakhstan, where annual precipitation declined at a rate of 90 mm decade(-1) . The regional C dynamics were mainly determined by changes in the vegetation C pool, and the SOC pool was stable due to the balance between reduced plant-derived C influx and inhibited respiration.

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“…La última etapa, pero no el punto final del camino, precisa que la desestructuración del conocimiento, previo el cual "el todo es más, y al mismo tiempo menos que la suma de la partes" (Morin y Pakman, 1998, p. 122), hace más que relevante reconocer la incertidumbre, el error y el caos en el quehacer académico, conceptos en continuo debate y construcción en la ciencia (Dovers et al, 1996;Gregersen y Sailer, 1993;Hunsaker, 2001;Wu, 2006) .…”

Section: El Sistema Complejounclassified

Epistemología y pragmatismo en el análisis de los sistemas complejos

Castro-Díaz

2017

Rev. latinoam. metodol. cienc. soc.

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Sistemas complejos ComplejidadSistemas socioterritoriales Causalidad Ciencias sociales y humanas RESUMENEste artículo presenta una reflexión profunda sobre los aportes y debate actual de la complejidad en la actuación investigativa de las ciencias sociales y humanas. Se centra especialmente en el análisis de sistemas complejos y su proceso de abstracción, construcción y estudio en el campo espacial y socioterritorial. El texto se plantea en dos partes principales contextualizando el pensamiento complejo como base fundamental para el análisis de sistemas y luego se diserta sobre aspectos como la causalidad, estructura, evolución y dimensión. Finalmente se constituye en un diálogo práctico para su ejecución en el abordaje del territorio. KEYWORDS ABSTRACTThis article includes a deep reflection about the contributions and current debate on the complexity in the research action of the social sciences and humanities. It is specially focused in the analysis of complex social systems and the process of abstraction, construction and understanding of the social-territorial and spatial field of study. The text is oriented in two main parts by contextualizing the complex thinking as fundamental base for analyzing the systems and then, it discourses on features like causality, structure, evolution and dimension. Finally, it configures a practical dialogue for its application in the understanding of the territory.

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Perspectives and Methods of Scaling

Cited by 19 publications

References 92 publications

Discontinuities, cross‐scale patterns, and the organization of ecosystems

Discontinuities, cross‐scale patterns, and the organization of ecosystems

Carbon stock and its responses to climate change inCentralAsia

Epistemología y pragmatismo en el análisis de los sistemas complejos

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Perspectives and Methods of Scaling

Cited by 19 publications

References 92 publications

Discontinuities, cross‐scale patterns, and the organization of ecosystems

Discontinuities, cross‐scale patterns, and the organization of ecosystems

Carbon stock and its responses to climate change inCentralAsia

Epistemologí­a y pragmatismo en el análisis de los sistemas complejos

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Epistemología y pragmatismo en el análisis de los sistemas complejos