The Coastal Plain of Belgium, Joint Product of Natural Processes and Human Activities

2017 ◽  
pp. 313-334
Author(s):  
Cecile Baeteman
Keyword(s):  
Coastal Plain ◽  
Human Activities ◽  
Natural Processes ◽  
Joint Product

Environmental evolution and anthropogenic forcing in the Garigliano coastal plain (Italy) during the Holocene

The Holocene ◽  
2021 ◽  
pp. 095968362110032
Author(s):  
Halinka Di Lorenzo ◽  
Pietro Aucelli ◽  
Giuseppe Corrado ◽  
Mario De Iorio ◽  
Marcello Schiattarella ◽  
...  
Keyword(s):  
Human Activity ◽  
Coastal Plain ◽  
Forest Cover ◽  
Environmental Changes ◽  
Pollen Data ◽  
Human Environment ◽  
The Holocene ◽  
Natural Processes ◽  
History Of ◽  
The Rich

The Garigliano alluvial-coastal plain, at the Latium-Campania border (Italy), witnessed a long-lasting history of human-environment interactions, as demonstrated by the rich archaeological knowledge. With the aim of reconstructing the evolution of the landscape and its interaction with human activity during the last millennia, new pollen results from the coastal sector of the Garigliano Plain were compared with the available pollen data from other nearby sites. The use of pollen data from both the coastal and marine environment allowed integrating the local vegetation dynamics within a wider regional context spanning the last 8000 years. The new pollen data presented in this study derive from the analysis of a core, drilled in the coastal sector, which intercepted the lagoon-marshy environments that occurred in the plain as a response to the Holocene transgression and subsequent coastal progradation. Three radiocarbon ages indicate that the chronology of the analyzed core interval ranges from c. 7200 to c. 2000 cal yr BP. The whole data indicate that a dense forest cover characterized the landscape all along the Prehistoric period, when a few signs of human activity are recorded in the spectra, such as cereal crops, pasture activity and fires. The main environmental changes, forced by natural processes (coastal progradation) but probably enhanced by reclamation works, started from the Graeco-Roman period and led to the reduction of swampy areas that favoured the colonisation of the outer plain.

scholarly journals Trends of Temperature and Rainfall in Pokhara

2020 ◽  
Vol 3 ◽  
pp. 22-32
Author(s):  
Upendra Paudel
Keyword(s):  
Water Resources ◽  
Human Activities ◽  
Climatic Condition ◽  
Air Pressure ◽  
Natural Processes ◽  
Increasing Trend ◽  
Average Condition ◽  
Meteorological Elements ◽  
Vital Element

 Climate is an average condition of temperature, humidity, air pressure, wind, precipitation and other meteorological elements. It is a changing phenomenon. Natural processes and human activities have helped change the climate. Temperature is a vital element of climate, which fluctuates in the course of time and leads to change other elements of the whole climate. An attempt has been made to analyze the pattern of temperature and rainfall of Pokhara with the help of the two decades’ temperature and rainfall conditions obtained from the station of Pokhara airport. The increasing trend of temperature and the decreasing trend of rainfall might be the symbol of climatic modification. This trend refers to some changes in the climatic condition that may affect water resources, vegetation, forests and agriculture.

Influences of natural and anthropogenic processes on the groundwater quality in the Dagujia River Basin in Yantai, China

2019 ◽  
Vol 69 (2) ◽  
pp. 184-196 ◽  
Author(s):  
Henghua Zhu ◽  
Jianwei Zhou ◽  
Tingting Song ◽  
Haibo Feng ◽  
Zhizheng Liu ◽  
...  
Keyword(s):  
Groundwater Quality ◽  
Seawater Intrusion ◽  
Human Activities ◽  
Industrial Development ◽  
Anthropogenic Activities ◽  
Total Hardness ◽  
Chemical Components ◽  
Chemical Compositions ◽  
Rock Interaction ◽  
Natural Processes

Abstract Groundwater plays an important role in water supply and economic development for Yantai city, China. However, the groundwater quality has degraded due to the increase and expansion of agricultural and industrial development. It is urgent to acquire groundwater characteristics and distinguish impacts of natural factors and anthropogenic activities on the groundwater quality. Forty-six groundwater samples collected from different wells showed a great variation of chemical components across the study area. Most wells with higher total dissolved solids, total hardness, K+, Na+, Ca2+, Mg2+, Cl− and SO42− concentrations were located relatively close to the coastal zone. The factor analysis (FA) and hierarchical cluster analysis results displayed that seawater intrusion was the primary mechanism controlling the groundwater quality in the coastal areas. A three-factor model was proposed based on the FA and explained over 85% of the total groundwater quality variation: Factor 1, the seawater intrusion; Factor 2, the water–rock interaction and Factor 3 (NO3−), the human activities. Furthermore, the geographical maps of the factor scores clearly described the spatial distributions of wells affected by natural processes or human activities. The study indicated that both natural processes and human activities are the major factors affecting the chemical compositions of groundwater.

scholarly journals Fish Invasions in the World's River Systems: When Natural Processes Are Blurred by Human Activities

PLoS Biology ◽  
2008 ◽  
Vol 6 (2) ◽  
pp. e28 ◽  
Author(s):  
Fabien Leprieur ◽  
Olivier Beauchard ◽  
Simon Blanchet ◽  
Thierry Oberdorff ◽  
Sébastien Brosse
Keyword(s):  
Human Activities ◽  
River Systems ◽  
Natural Processes ◽  
Fish Invasions

scholarly journals Analysis Of Reed Resource Dynamics In Water Bodies Of Eastern Latvia

2015 ◽  
Vol 1 ◽  
pp. 252
Author(s):  
E. Čubars ◽  
G. Noviks
Keyword(s):  
Shallow Lakes ◽  
Water Body ◽  
Human Activities ◽  
Hydrological Regime ◽  
Climatic Conditions ◽  
Water Bodies ◽  
Natural Processes ◽  
Resource Dynamics ◽  
Main Factors ◽  
Made In

The paper shows the results obtained during the research of reed dynamics revealing that in Eastern Latvia 20 lakes and pisciculture farms are potentially important for the reed extraction. In 2008, the reed resources there covered a territory of approximately 2300 ha. The ortophoto images of potentially important water bodies made in 1997, 2005 and 2008 were analyzed using the computer program ArcMap. The reed growth develops differently in every water body, but in general the eutrophication of water bodies and the enlargement of reed-covered areas can be observed. The most rapidly the reed occupies new territories in pisciculture farms and shallow lakes. The analysis of reed resource dynamics show that reed-covered areas in this region are expanding every year. The main factors that influence the distribution of reed growths refer to human activities, climatic conditions, hydrological regime in water bodies and natural processes of eutrophication.

scholarly journals Análise multitemporal da linha de costa da praia de Macapá no litoral do Piauí a partir de imagens Landsat / Multitemporal analysis of the coastline of Macapá beach on the coast of Piauí from Landsat images

2017 ◽  
Vol 27 (1) ◽  
pp. 189
Author(s):  
Érico Rodrigues Gomes ◽  
Inessa Racine Gomes de Araújo
Keyword(s):  
Remote Sensing ◽  
Time Series ◽  
Coastal Plain ◽  
Human Activities ◽  
Coastal Erosion ◽  
General Tendency ◽  
Coastal Monitoring ◽  
Landsat Images ◽  
Coastal Dynamics ◽  
Landscape Unit

<p>A planície costeira do estado do Piauí tem passado por diversas intervenções em função das atividades naturais e humanas. A zona costeira representa uma unidade de paisagem que mesmo sem apresentar grande ocupação já apresenta indicativos ambientais no que se refere a erosão costeira. A metodologia foi baseada em uma análise de séries temporais de 30 anos (1985 a 2015) através de imagens Landsat para a detecção e variação da linha de costa. Os resultados obtidos indicam que há uma tendência generalizada no processo de avanço das águas oceânicas sobre a linha da costa na praia de Macapá e que está relacionado com a dinâmica costeira e também com o fato de que neste local há intensa carga de sedimentos oriundos do continente, através do trabalho de deposição e transporte dos rios Cardoso e Camurupim, que deságuam no oceano em forma de estuário.</p><p><strong>Palavras–chave:</strong> erosão costeira, monitoramento costeiro, linha de costa, sensoriamento remoto.</p><p><strong>Abstract </strong></p><p>The coastal plain of the state of Piauí has undergone several interventions due to natural and human activities. The coastal zone represents a landscape unit that even without presenting great occupation already presents environmental indicatives with respect to coastal erosion. he methodology was based on a 30-year time series analysis (1985 to 2015) using Landsat images for the detection and variation of the coastline. The results indicate that there is a general tendency in the process of advancing the oceanic waters on the coastline in the beach of Macapá and that is related to the coastal dynamics and also to the fact that in this place there is an intense load of sediments originating from the continent, through the work of deposition and transportation of the rivers Cardoso and Camurupim, that fall into the ocean in the form of estuary.</p><p><strong>Keywords</strong>: coastal erosion, coastal monitoring, coast line, remote sensing.</p>

scholarly journals Paleoenvironmental Evolution and Human Activities at the Hejia Site on the Ningshao Coastal Plain in Eastern China

2021 ◽  
Vol 8 ◽  
Author(s):  
Haiyan Li ◽  
Jue Sun ◽  
Chunmei Ma ◽  
Dongsheng Zhao ◽  
Yongning Li ◽  
...  
Keyword(s):  
Magnetic Susceptibility ◽  
Coastal Plain ◽  
Human Activities ◽  
Eastern China ◽  
Culture Period ◽  
Environment Interaction ◽  
Neolithic Period ◽  
Middle Holocene ◽  
Paleoenvironmental Evolution ◽  
Liangzhu Culture

The eastern China coastal plain is an ideal area for studying the human–environment interaction during the Neolithic period as there are multiple Neolithic sites in this area. Located in the Ningshao Coastal Plain of the south bank of Hangzhou Bay in eastern China, the Hejia Site is part of the late Hemudu Culture sites and includes the late Hemudu Culture, the Liangzhu Culture, and the Qianshanyang Culture. Based on palynology, charcoal, X-ray fluorescence (XRF), and magnetic susceptibility (χ), combined with accelerator mass spectrometry 14C dating and analysis of the archaeological cultural layers, we explored the paleoenvironmental evolution and human activities at the Hejia Site. 1) Pollen records suggest that the vegetation type was evergreen and deciduous broad-leaved mixed forest during the Middle Holocene. Cr/Cu and low-frequency magnetic susceptibility (χlf) reveal that the climate underwent through warm and wet (Hemudu Culture Period IV)–cool and dry (Liangzhu Culture Period)–warm and wet (Qianshanyang Culture Period) periods. 2) During the Middle Holocene, the intensity of human activities, related to the transformation of the natural environment, increased obviously. The increasing Poaceae pollen (&gt;37 μm) indicates that the ability of prehistoric humans in managing crop fields gradually increased from the late Hemudu Culture Period to the Liangzhu Culture Period. The charcoal concentration results suggest that the occurrence of high-intensity fire events during the late Hemudu Culture Period might be caused by the slash-and-burn operation, while those that occurred during the middle Liangzhu Culture Period might be caused by the increasing fire demand owing to the greater ancestors’ lives and production activities in the Liangzhu Culture Period.

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