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Desertification risk,economic resilience and social issues:From theory to practice

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Chinese Journal of Population,Resources and Environment 2020年第2期18卷 155-163页

作者： Gianluca Egidi luca salvati Department of Agricultural and Forestry Sciences(DAFNE) Tuscia UniversityVia San Camillo de LellisI-01100 ViterboItaly Department of Economics and Law University of MacerataVia Armaroli 43I-62100 MacerataItaly

Land degradation and early forms of desertification in both advanced economies and emerging countries reflect complex socio-environmental processes driven by multiple interactions between biophysical and socioeconomic forces across different spatial *** present study investigates desertification risk,land degradation,and socio-demographic dynamics through the lens of“resilience,”adopting complex adaptive systems(CAS)*** resilience of socio-environmental systems exposed to land degradation is defined as the capacity of a regional economy to respond to crises and reorganize by making changes to preserve functions,structure,and feedback,and to promote future development *** reviewing the socioeconomic resilience of local socio-ecological systems exposed to land degradation,this study achieves a better comprehension of the multifaceted processes that lead to a higher risk of desertification and the intimate relationship with underlying population trends and demographic dynamics.A comprehensive approach based on resilience thinking was formulated to review both environmental and socio-demographic issues at the landscape scale,and provide a suitable foundation for sustainability science and regional development policies.

关键词： Population dynamics Ecosystem functioning Socio-ecological resilience Complex adaptive systems Interpretative framework

Exploratory analysis of structural diversity indicators at stand level in three Italian beech sites and implications for sustainable forest management

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Journal of Forestry Research 2019年第1期30卷 121-127页

作者： Giada Bertini Claudia Becagli Ugo Chiavetta Fabrizio Ferretti Gianfranco Fabbio luca salvati CREA Research Centre for Forestry and Wood

The present study introduces an exploratory data analysis based on structural indicators with the aim to assess the effect of silvicultural practices on tree stand structure. The study was carried out in three Italian beech forests of different ages with stand structures that originated from dissimilar regeneration and cultivation techniques(Cansiglio, northern Italy, Chiarano, central Italy,and Mongiana, southern Italy). Ten structural indicators were considered when investigating the latent multivariate relationship between stand structure attributes before and after thinning operations by using a multiway factor analysis(MFA). The MFA results identified the older stand at Cansiglio as more homogeneous for cultivation regimes,and more stable to practices when compared with the younger sites(Chiarano and Mongiana). Heterogeneous stands were sensitive to silvicultural practice thus suggesting their possible impact on forest attributes. The proposed approach proved to be an operational tool to evaluate comprehensively the response of forest structure to planned interventions.

关键词： Forest diversity Multiway factor analysis Silviculture Structural diversity indicators Tree stand structure

对扩张和危机的不同反应? 城乡差距在长期人口动态中的作用

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国际社会科学杂志（中文版） 2021年第4期38卷 145-163,8,13页

作者：卢卡•萨尔瓦蒂龚华燕(译) 意大利马切拉塔大学经济及法律系不详

发达国家的经济下行可能会影响人口动态,扩大人口趋势的地区差异,并巩固可进入地区和边缘地区的社会鸿沟。本研究提出了一个量化框架,分析经济扩张和衰退对希腊区域人口动态的潜在影响。选取的指标(人口密度、自然平衡和迁移平衡对总人... 详细信息

发达国家的经济下行可能会影响人口动态,扩大人口趋势的地区差异,并巩固可进入地区和边缘地区的社会鸿沟。本研究提出了一个量化框架,分析经济扩张和衰退对希腊区域人口动态的潜在影响。选取的指标(人口密度、自然平衡和迁移平衡对总人口增长的贡献、总生育率和粗出生率、粗结婚率、每婚生育率和粗死亡率)被用来区分希腊长期过渡过程(1956—2017)与短期动态,其中后者以最近的经济扩张(2000—2008)和衰退(2009—2017)为特征。本研究分别计算了以雅典为中心的大都会区阿提卡(定居人数占全国30%以上)和希腊其他地区的指标,从而可以对城乡地区的社会人口动态进行详细分析。结果表明,希腊的区域人口趋势受到多种因素的影响,这些因素反映了长期的过渡力量、城市化/郊区化进程以及经济下行的短期影响。

关键词：粗出生率郊区化进程大都会区城乡差距结婚率粗死亡率经济下行人口密度