Versatility as a cultural niche: palynological evidence on Iron Age and medieval land use on the Åland Islands

Larsson, Petter I.; Alenius, Teija; Ilves, Kristin

doi:10.1080/08003831.2023.2257072

Cited by 2 publications

(1 citation statement)

References 72 publications

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“…No single indicator can fully reflect the level of economic development, it should be scaled with multi-level indicators that meet the needs of the assessment. Accordingly, most of the current studies are comprehensive assessments of the level of regional economic development, which are not limited to economic indicators, but also include indicators measuring demographic, social, ecological and environmental aspects [15,[24][25][26][27][28][29][30]. Based on the continuous deepening of research on regional economic development, scholars believe that economic development is a continuous evolutionary process from low to high level and from quantitative change to qualitative change [31].…”

Section: Introductionmentioning

confidence: 99%

Ecological niche measurement and high-quality development of "the Belt and Road" core area

Zhang,

Abdusuli

2024

PLoS ONE

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A new stage in promoting the construction of the Silk Road Economic Belt Core Area, and Xinjiang has been transformed from a relatively closed inland area into an open border. In order to promote the high-quality development of Southern Xinjiang and solve the imbalance contradiction between the development of the Northern Xinjiang and Southern Xinjiang, taking the four districts in Southern Xinjiang as the study area, constructing a high-quality development ecological niche index system of three levels, namely economic, social and ecological, adopting the entropy method to assign weights to the evaluation indexes, and measuring the ecological niche width and the degree of ecological niche overlap of this region in the period from 2011 to 2020. The results show that: Firstly, tourism has the greatest impact on the ecological niche of economic development in state N, with a weighting of 14.18%; Secondly, the ecological status width of economic development in state N demonstrates a structural characteristic of “low level and low gap”. The average value of ecological niche width is at class III, indicating a low development status and weak regional influence; Thirdly, the ecological niche overlap of state N is significantly influenced by spatial factors. Regions Z and S are closer together, resulting in higher competition for resource utilization and an average ecological niche overlap at class II. The other two regions are at class III. According to the theory of ecological niche expansion and separation, a specialization separation strategy should be adopted for areas with "low width and high overlap", and a strengthening expansion strategy should be adopted for areas with "low width and low overlap", to optimize the structure of ecological niches and promote high-quality development of the region.

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Section: Introductionmentioning

confidence: 99%

Ecological niche measurement and high-quality development of "the Belt and Road" core area

Zhang,

Abdusuli

2024

PLoS ONE

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Flax use, weeds and manuring in Viking Age Åland: archaeobotanical and stable isotope analysis

Vanhanen,

Ilves

2025

Veget Hist Archaeobot

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Charred masses of nearly 100,000 Linum usitatissimum (flax) seeds were found in house remains from Tjudnäs on the Åland Islands, Finland, and radiocarbon dated to ad 880–1020. The flax seeds were large and discovered in lumps, which indicates that they had been pressed for their oil. The flax was accompanied by seeds of Cuscuta epilinum, Lolium remotum, Galium spurium and Camelina alyssum/sativa, which are specific weeds of flax fields that mimic it in the flax fields and during crop processing. Several of these species have now become extinct or rare after the introduction of more effective methods of weed control and less flax growing. This find demonstrates the antiquity of this obligate flax weed flora, which appears to have been introduced to Åland together with flax seeds intended for cultivation. Thousands of cereal grains discovered in Viking Age/early medieval (ad 750–1300) Kohagen show that a broad range of crops was grown, with high proportions of Triticum aestivum (naked wheat). Stable isotope analyses of carbon (δ13C) and nitrogen (δ15N) ratios were done on the flax from Tjudnäs and other crops from Kohagen, all from samples dated ad 880–1020. The analyses showed high values of δ15N, which can be explained by considerable soil enrichment with manure, possibly also with maritime resources such as seaweed and fish. The δ13C values varied between crops, with those for flax being lower than for cereals and Pisum sativum (peas), which could reflect different environmental conditions or differences in plant physiology. The factors affecting δ15N and δ13C in flax are, however, poorly understood due to the lack of experimental studies.

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Versatility as a cultural niche: palynological evidence on Iron Age and medieval land use on the Åland Islands

Cited by 2 publications

References 72 publications

Ecological niche measurement and high-quality development of "the Belt and Road" core area

Ecological niche measurement and high-quality development of "the Belt and Road" core area

Flax use, weeds and manuring in Viking Age Åland: archaeobotanical and stable isotope analysis

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