Evaluation of oasis ecosystem risk by reliability theory in an arid area: A case study in the Shiyang River Basin, China

Li, Wei-De; Li, Zizhen; Ji-quan, Wang

doi:10.1016/s1001-0742(07)60085-0

Cited by 13 publications

(7 citation statements)

References 8 publications

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“…The proportion of oasis areas in inland river basins is usually only about 5% of the area, but they gather more than 95% of the population and more than 90% of the socioeconomic wealth [2]. Oases are the core areas of economic output of the whole arid zone watershed and the areas with the most frequent interaction with humans [3]. Oases in China have experienced massive expansion due to rapid population growth, sustained economic development, and climate change [4,5], which has also put tremendous pressure on oasis ecosystems [6].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Spatio-Temporal Pattern Changes and Driving Forces of Xinjiang Plain Oases Based on Geodetector

Zhang,

et al. 2023

Land

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Water and soil resources are the key elements required to maintain the stability and sustainable development of oases in inland drylands. This study takes oases in Xinjiang as an example, and reveals the spatial and temporal distribution characteristics of oases across Xinjiang, as well as the dynamic migration and transformation process of oases and the mutual influence of human activities on oasis resources, through a combination of land movement and attitude indicators, use of a gravity model, and Geodetector. The results show that: (1) the area containing the oases in the study has expanded, increasing by 24.0% between 1990 and 2020; (2) both artificial oases (AO) and natural oases (NO) were tilted in a northeast–southwest direction, with the center point of AOs moving slightly to the northeast, and the centripetal force and dispersion degree did not change significantly; the center point of NO moved significantly to the northeast, and the dispersion degree weakened, showing spatial convergence; (3) cultivated land and grassland were the main land types of oasis evolution, and their contribution to evolution was over 70%; and (4) the Geodetector results show that the three main factors driving the evolution of oases were vegetation cover, population density, and GDP. The research results have practical implications for land-use management planning and ecological environmental protection in arid zones.

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Section: Introductionmentioning

confidence: 99%

Analysis of Spatio-Temporal Pattern Changes and Driving Forces of Xinjiang Plain Oases Based on Geodetector

Zhang,

et al. 2023

Land

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“…Different from traditional ecological risk assessment methods, LER assessment is based on the change characteristics and succession rules of the landscape pattern and its components, revealing the spatial heterogeneity and scale effect of ecological risk and comprehensively evaluating the direct and cumulative effects of various risk factors in the landscape [8,9]. In recent years, scholars have carried out research on LER assessment in cities [10], watersheds [11], wetlands [12], coastal areas [13] and key risk control areas (such as industrial mining areas [14] and nature reserves [15]) and provided reference for ecosystem planning and management by analyzing the relationship between LER and economic development. Karimian et al found that high-value landscape ecological risk areas in the upper reaches of the Dongjiang River Basin were mainly concentrated in the urban center, and population density was the main driving force of LER [16].…”

Section: Introductionmentioning

confidence: 99%

Designing a Sustainable Development Path Based on Landscape Ecological Risk and Ecosystem Service Value in Southwest China

Zhang

Yang

et al. 2023

Sustainability

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Rapid urban expansion and economic development lead to the deterioration of ecosystems, which not only aggravates regional ecological risks but also leads to the degradation of ecosystem functions. It is of great significance to rationally divide regions and provide targeted management strategies for realizing the sustainability of regional economic development and ecological maintenance. Taking southwest China (Sichuan, Yunnan, Guizhou and Chongqing) as an example, land use data from 2000, 2010 and 2020 were used to evaluate the value of landscape ecological risk (LER) and ecosystem services, and comprehensive zoning was divided according to their spatial correlation. The socio-economic development characteristics of each zone were analyzed, and differentiated and targeted sustainable development paths were proposed. The results showed that the overall LER level of southwest China increased, and the gap of internal LER narrowed gradually. The ecosystem service value (ESV) per unit area showed an increasing trend, but the core metropolitan areas and northwest Sichuan had little change. According to the differences in population, industrial structure and land use, the low-ESV zone was densely populated, while the high-ESV zone was sparsely populated, and the population from the high-LER zone gradually migrated to the low-LER zone. The economic development of the low-ESV zone was better than that of the high-ESV zone, and secondary industry was an important driving force of regional economic development. Large-scale forestland can alleviate the LER, but the increase in cultivated land and grassland further aggravated the LER. According to the social and economic characteristics of each zone, this study put forward a differentiated development strategy for southwest China and also provided reference for the coordinated development of ecological protection and social economy in other key ecological regions.

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“…Drylands are home to unique farming systems, diverse nomadic cultures, and a quarter of the world’s languages [ 23 , 24 ]. Oases play a fundamental role in drylands: they form distinct locations of tight interactions between humans and nature [ 25 , 26 ] and thus create and maintain biological [ 27 ] and cultural diversity. Further, they often contain a unique agrobiodiversity [ 28 ], are described as “ in situ conservation centers for ancient germplasm” [ 29 , 30 ] and finally provide a wide range of ecosystem services [ 31 , 32 ].…”

Section: Introductionmentioning

confidence: 99%

Oases in the Sahara Desert–Linking biological and cultural diversity

Tydecks,

Hernández-Agüero,

Böhning-Gaese

et al. 2023

PLoS ONE

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The diversity of life sensu lato comprises both biological and cultural diversity, described as “biocultural diversity.” Similar to plant and animal species, cultures and languages are threatened by extinction. Since drylands are pivotal systems for nature and people alike, we use oases in the Sahara Desert as model systems for examining spatial patterns and trends of biocultural diversity. We identify both the underlying drivers of biodiversity and the potential proxies that are fundamental for understanding reciprocal linkages between biological and cultural diversity in oases. Using oases in Algeria as an example we test current indices describing and quantifying biocultural diversity and identify their limitations. Finally, we discuss follow-up research questions to better understand the underlying mechanisms that control the coupling and decoupling of biological and cultural diversity in oases.

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Evaluation of oasis ecosystem risk by reliability theory in an arid area: A case study in the Shiyang River Basin, China

Cited by 13 publications

References 8 publications

Analysis of Spatio-Temporal Pattern Changes and Driving Forces of Xinjiang Plain Oases Based on Geodetector

Analysis of Spatio-Temporal Pattern Changes and Driving Forces of Xinjiang Plain Oases Based on Geodetector

Designing a Sustainable Development Path Based on Landscape Ecological Risk and Ecosystem Service Value in Southwest China

Oases in the Sahara Desert–Linking biological and cultural diversity

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