scholarly journals Assessing Landscape Ecological Risk Induced by Land-Use/Cover Change in a County in China: A GIS- and Landscape-Metric-Based Approach

2020 ◽  
Vol 12 (21) ◽  
pp. 9037 ◽  
Author(s):  
Jianxiao Liu ◽  
Meilian Wang ◽  
Linchuan Yang
Keyword(s):  
Land Use ◽  
Ecological Risk ◽  
Research Area ◽  
Ecological Vulnerability ◽  
Different Types ◽  
Landscape Ecological ◽  
Global And Local ◽  
The Relationship ◽  
Regional Land ◽  
Resolution Data

Landscape ecological risk assessment (LERA) evaluates different types of potential environmental impacts and their cumulative effects, thereby providing policy insights for sustainable regional land-use and ecosystem management. In a departure from existing literature that heavily relies on low-resolution land-use data for LERA at provincial or municipal scales, this study applies high-resolution land-use data to a relatively small research area (county). In addition, this study modifies the evaluation units of LERA from equal-sized grids to watersheds and refines the ecological vulnerability weight on the basis of finer-resolution data. The main findings are summarized as follows: (1) In 2011–2013, nearly 866 ha of land use in Xiapu County changed; moreover, the construction land, which was mainly concentrated in Songgang Street and Xinan Town, increased the most (340 ha). (2) Landscape ecological risk (LER) was roughly maintained, and areas of high ecological risk were mainly concentrated along the coast. (3) The spatial distribution of LER maintained a relatively aggregated pattern, with no trend toward more aggregated or more dispersed change. This study further discusses the relationship between local LER and land-use change and how to balance global and local LER in planning practices.

scholarly journals Half-Century Changes in LULC and Fire in Two Iberian Inner Mountain Areas

Fire ◽  
2019 ◽  
Vol 2 (3) ◽  
pp. 45
Author(s):  
Catarina Romão Sequeira ◽  
Francisco Rego ◽  
Cristina Montiel-Molina ◽  
Penelope Morgan
Keyword(s):  
Land Use ◽  
Regional Planning ◽  
Mountain Areas ◽  
Social Ecological ◽  
Mountain System ◽  
Land Use Policies ◽  
In Fire ◽  
The Relationship ◽  
Regional Land

Wildfires in the Iberian Peninsula were large and frequent in the second half of the 20th century. Land use and land cover (LULC) also changed greatly. Our aim was to understand the relationship between LULC and fire in the western and eastern ends of the Iberian Central Mountain System. We compared two case study landscapes, the Estrela massif and the Ayllón massif, which are biophysically similar but with different social-ecological contexts. In both, fires were in general more likely in shrublands and pastures than in forests. Shrublands replaced forests after fires. Contrasting LULC in the two massifs, particularly pastures, likely explained the differences in fire occurrence, and reflected different regional land use policies and history. Fire here is a social-ecological system, influenced by specific LULC and with implications from landscape to regional scales. Understanding how LULC changes interact with fire is powerful for improving landscape and regional planning.

Landscape and Land Use in First Millennium BC Southeast Italy

2016 ◽  
Author(s):  
Daphne Lentjes
Keyword(s):  
Land Use ◽  
Agricultural Production ◽  
Food Habits ◽  
Comprehensive Overview ◽  
Field Surveys ◽  
Written Texts ◽  
First Millennium ◽  
First Millennium Bc ◽  
The Relationship ◽  
Regional Land

This book offers a comprehensive overview of landscape and land use in southeast Italy in the first millennium BCE. Using the most up-to-date techniques, it combines archaeobotanical and archaeozoological data with information from excavations, field surveys, and ancient written texts to place the relationship between people and landscapes in a broad geographical and chronological framework. It also confronts questions of food habits, the scale and organisation of agricultural production, the influx of Greek and Roman colonists, and the effects of globalisation on local and regional land use.

scholarly journals Integrating Ecosystem Function and Structure to Assess Landscape Ecological Risk in Traditional Village Clustering Areas

2021 ◽  
Vol 13 (9) ◽  
pp. 4860
Author(s):  
Sheng Liu ◽  
Ming Bai ◽  
Min Yao
Keyword(s):  
Land Use ◽  
High Risk ◽  
Ecological Risk ◽  
Land Use Changes ◽  
Ecosystem Structure ◽  
Study Region ◽  
Boundary Area ◽  
Ecological Risk Assessments ◽  
And Function ◽  
Landscape Ecological

Land use in traditional village clustering areas often exhibits slight dynamic changes; however, significant hidden ecological hazards may be present in local settlements. There is still a lack of dynamic ecological risk assessments for the corresponding classification-based prevention strategies and landscape ecosystem attributes’ enhancement. Based on the land-use changes, this study integrated the ecosystem structure and function to explore the characteristics of the landscape ecological risk in traditional village clustering areas. The clustering area of 24 national traditional villages in Songyang County of Lishui City in Zhejiang Province, China, served as the study region to evaluate and analyze the changes in the landscape ecological risk from 2010 to 2019. The results showed that the land-use transitions were subtle but dominated by changes from forest cultivated land, posing high risk and medium—high risk increased slowly in size. Additionally, significantly increased risks were located mainly in the boundary area of the five villages. Moreover, 22 settlements were found in the sensitive area with increased risks less than 600 m away. This assessment will provide a basis for traditional villages’ risk prevention and ecosystem protection.

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