scholarly journals Functional and Taxonomic Diversity of Collembola as Complementary Tools to Assess Land Use Effects on Soils Biodiversity

2021 ◽  
Vol 9 ◽  
Author(s):  
Sophie Joimel ◽  
Christophe Schwartz ◽  
Jonathan Bonfanti ◽  
Mickaël Hedde ◽  
Paul Henning Krogh ◽  
...  
Keyword(s):  
Land Use ◽  
Arable Land ◽  
Urban Ecosystems ◽  
Taxonomic Diversity ◽  
Model Organisms ◽  
Land Uses ◽  
Land Use Classification ◽  
Soil Biodiversity ◽  
Functional Homogenization ◽  
Functional Indices

Collembola have been proposed for several decades as a good model organisms to survey soil biodiversity; but most of the studies focused on taxonomic endpoints. The main objectives of this study are to compare the effects of the different land uses, including urban and industrial land uses, while using both collembolan functional and taxonomic biodiversity approaches. We collected data on 3,056 samples of Collembola communities across 758 sites in various land uses throughout France. The types of land use considered included all types of human activity from forestry to urban, industrial, traffic, mining and military areas, agricultural grassland, arable land, vineyards and urban vegetable gardens. In order to study functional and taxonomic biodiversity, we used community-weighted means, functional indices, species richness and density. When looking at collembolan functional diversity, urban and industrial soils appear clearly less diversified than when considering the taxonomic diversity. We suspect here a functional homogenization effect commonly reported in the literature for various organisms in urban ecosystems. Our study provides range of values for different taxonomic and functional indices of Collembola communities in a wide land use classification across France.

scholarly journals Assessment of the Ecological Stability of the Village of Bielovce as a Result of to Changes in Land Use

2016 ◽  
Vol 24 (2) ◽  
pp. 1-6 ◽  
Author(s):  
Peter Ivan ◽  
Tatiana Chebeňová
Keyword(s):  
Land Use ◽  
Human Activity ◽  
Environmental Conditions ◽  
Human Population ◽  
Arable Land ◽  
Land Uses ◽  
Ecological Stability ◽  
Area Of Interest ◽  
Negative Factors ◽  
The Village

Abstract Globally, the human population is growing, which causes increasing demands on landscapes. Human activity significantly influences the ecological balance, especially in the negative. Ecological stability is the basis for assessments of all environmental conditions and for assessments according to new land uses. The area of interest is evaluated according to both positive and negative factors. There are many methodologies for calculating ecological stability, e.g., Muchová et al. (2009); Řeháčková - Pauditšová (2007); Kupková (2002); Streďanský et al. (1995) and Löw et al. (1984). The aim of this paper is to compare the works of the mentioned authors concerning the ecological stability of the district of Levice (Slovakia), specifically in the municipal cadastre region of Bielovce. The land uses of this territory have changed during some periods. We compared the state of the land uses in the years 1950, 2012 and 2014. During this period, the proportion of arable land increased, and the proportion of forest decreased. In the area of interest, the ecological stability increased, but not as significantly as we expected. The processed data were prepared in GIS.

scholarly journals Social Sensing for Urban Land Use Identification

2020 ◽  
Vol 9 (9) ◽  
pp. 550
Author(s):  
Adindha Anugraha ◽  
Hone-Jay Chu ◽  
Muhammad Ali
Keyword(s):  
Land Use ◽  
Accuracy Assessment ◽  
Urban Land ◽  
Demographic Characteristics ◽  
Urban Land Use ◽  
Land Uses ◽  
Land Use Classification ◽  
Residential Areas ◽  
Social Sensing ◽  
Land Use Maps

The utilization of urban land use maps can reveal the patterns of human behavior through the extraction of the socioeconomic and demographic characteristics of urban land use. Remote sensing that holds detailed and abundant information on spectral, textual, contextual, and spatial configurations is crucial to obtaining land use maps that reveal changes in the urban environment. However, social sensing is essential to revealing the socioeconomic and demographic characteristics of urban land use. This data mining approach is related to data cleaning/outlier removal and machine learning, and is used to achieve land use classification from remote and social sensing data. In bicycle and taxi density maps, the daytime destination and nighttime origin density reflects work-related land uses, including commercial and industrial areas. By contrast, the nighttime destination and daytime origin density pattern captures the pattern of residential areas. The accuracy assessment of land use classified maps shows that the integration of remote and social sensing, using the decision tree and random forest methods, yields accuracies of 83% and 86%, respectively. Thus, this approach facilitates an accurate urban land use classification. Urban land use identification can aid policy makers in linking human activities to the socioeconomic consequences of different urban land uses.

scholarly journals Transformation of organic carbon in alluvial soils under different land uses

2020 ◽  
Vol 27 (1) ◽  
Author(s):  
Alvyra Šlepetienė ◽  
Kazimiež Duchovski ◽  
Jonas Volungevičius
Keyword(s):  
Land Use ◽  
Organic Carbon ◽  
Total Organic Carbon ◽  
Arable Land ◽  
Soil Layer ◽  
Soil Samples ◽  
Plant Residues ◽  
Land Uses ◽  
Forest Land ◽  
Alluvial Deposits

The aim of this study – to evaluate the status of organic carbon (OC) under different land uses of soils formed in alluvial deposits. The soil samples were collected from 0–10, 10–20 and 20–30 cm depths in three field replicates.Three land uses were investigated: arable land, grassland and forest. The experimental site is situated near Surviliškis, Kėdainiai District (55°26′08.37′′N, 24°02′27.75′′Y) in Central Lowland of Lithuania. A total of 27 soil samples, collected from 0–10, 10–20 and 20–30 cm depths in three field replicates, were analysed for OC. The samples were prepared for analysis by removing plant residues, grinding and sieving through a 0.25 mm sieve. For all land uses, the highest content of OC was found in the upper 0–10 cm soil layer of the soil, with the highest values found in the forest land use. Fast-growing deciduous trees are an effective means to increase the content of OC in alluvial soil, especially in the 0–10 cm layer. The distribution of OC in the soil layers depended on the land use. Grassland and forest land uses allow OC to be preserved throughout the 0–30 cm layer, with less OC differentiation than in arable land. This could be attributed to the specificities of organic matter accumulation and degradation in different land uses. Not only the amount of labile organic carbon (similar to total organic carbon) was highest (0.392 g kg–1) in forest soil in the 0–10 cm layer, it also had a higher relative share in the total organic carbon (2.9%) than in other land uses – arable land and grassland (2.3–2.4%).

scholarly journals Variation of soil organic carbon and physical properties in relation to land uses in the Yellow River Delta, China

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Shuying Jiao ◽  
Junran Li ◽  
Yongqiang Li ◽  
Ziyun Xu ◽  
Baishu Kong ◽  
...  
Keyword(s):  
Land Use ◽  
Physical Properties ◽  
Soil Quality ◽  
Yellow River ◽  
Arable Land ◽  
Yellow River Delta ◽  
Soil Physical Properties ◽  
Land Uses ◽  
Forest Land ◽  
The Yellow River Delta

AbstractSoil physical properties and soil organic carbon (SOC) are considered as important factors of soil quality. Arable land, grassland, and forest land coexist in the saline-alkali reclamation area of the Yellow River Delta (YRD), China. Such different land uses strongly influence the services of ecosystem to induce soil degradation and carbon loss. The objective of this study is to evaluate the variation of soil texture, aggregates stability, and soil carbon affected by land uses. For each land use unit, we collected soil samples from five replicated plots from “S” shape soil profiles to the depth of 50 cm (0–5, 5–10, 10–20, 20–30, and 30–50 cm). The results showed that the grassland had the lowest overall sand content of 39.98–59.34% in the top 50 cm soil profile. The content of soil aggregates > 0.25 mm (R0.25), mean weight diameter and geometric mean diameter were significantly higher in grassland than those of the arable and forest land. R0.25, aggregate stability in arable land in the top 30 cm were higher than that of forest land, but lower in the soil profile below 20 cm, likely due to different root distribution and agricultural practices. The carbon management index (CMI) was considered as the most effective indicator of soil quality. The overall SOC content and CMI in arable land were almost the lowest among three land use types. In combination with SOC, CMI and soil physical properties, we argued that alfalfa grassland had the advantage to promote soil quality compared with arable land and forest land. This result shed light on the variations of soil properties influenced by land uses and the importance to conduct proper land use for the long-term sustainability of the saline-alkali reclamation region.

scholarly journals USO DA TERRA E QUALIDADE AMBIENTAL URBANA: UMA PROPOSTA DE LEGENDA PARA MAPEAMENTO

GEOgraphia ◽  
2019 ◽  
Vol 21 (46) ◽  
pp. 73
Author(s):  
João Carlos Nucci ◽  
Simone Valaski ◽  
Laura Freire Estêvez ◽  
Emerson Luis Tonetti
Keyword(s):  
Land Use ◽  
Environmental Quality ◽  
Urban Areas ◽  
Landscape Planning ◽  
Urban Landscapes ◽  
Land Uses ◽  
Land Use Classification ◽  
Land Usage ◽  
Planning Decisions ◽  
High Degree

Resumo: A paisagem urbana apresenta uma variedade de estruturas e dinâmicas fortemente determinadas pelo uso e pela cobertura da terra, constituintes fundamentais na definição da qualidade ambiental urbana. O ordenamento do uso da terra, nas zonas urbanas, é fornecido principalmente pelas leis municipais de uso e ocupação do solo, que apresentam alto grau de complexidade dificultando a participação popular nas decisões de planejamento. O trabalho apresenta uma proposta de hierarquização dos usos da terra conforme suas potencialidades em aumentar ou diminuir a qualidade ambiental. Foram utilizadas revisão de bibliografia e legislação de zoneamento urbano como subsídios para as inferências sobre a qualidade ambiental relacionada a cada uso da terra. As centenas de diferentes usos da terra, identificados nas leis de zoneamento urbano, foram organizados na forma de uma legenda, para mapeamento em escala do lote, constituída por 15 níveis de qualidade ambiental, conforme as características de uso e de porte do estabelecimento. A legenda proposta fornece importante subsídio para o mapeamento da qualidade ambiental urbana e para a participação popular no planejamento, já que simplifica o tratamento complexo encontrado na legislação de zoneamento urbano.Palavras-chave: Planejamento da Paisagem. Ecologia Urbana. Classificação dos usos da terra. LAND USAGE AND URBAN ENVIRONMENTAL QUALITY: A PROPOSAL FOR A MAPPING KEY.Abstract: Urban landscapes feature a variety of structures and dynamics strongly determined by the land use and coverage, fundamental components of the urban environmental quality definition. The disposition of land use in urban areas is established, mainly, by Municipal Laws on the land use and occupation, which present a high degree of complexity, making difficult the people’s participation in the planning decisions. This work brings forward a proposal for the creation of a hierarchy for the land uses, based on its potential to increase or decrease the environmental quality. We did a bibliography and urban zoning legislation review as a subsidy for the inferences about the environmental quality related to each land use. The hundreds of land uses identified in the urban zoning legislation were organized under the format of a “key” for a scaled mapping of the plot, distributed through 15 environmental quality levels, depending on the usage characteristics and size of the establishment. The proposed “key” gives an important subsidy to the mapping of the urban environmental quality and the people’s participation in the planning, since it simplifies the complexity of the approach found in the urban zoning legislation.Keywords: Landscape Planning. Urban Ecology. Land Use Classification. USO DE LA TIERRA Y CALIDAD AMBIENTAL URBANA: UNA PROPUESTA DE LEYENDA DE MAPEORsumem: El paisaje urbano presenta una variedad de estructuras y dinámicas fuertemente determinadas por el uso y la cobertura del suelo, componentes fundamentales en la definición de la calidad ambiental urbana. La planificación del uso del suelo en las zonas urbanas se realiza principalmente por las leyes municipales de uso y ocupación del suelo, que son muy complejas y dificultan la participación popular en las decisiones de planificación. El documento presenta una propuesta de jerarquización de los usos de la tierra de acuerdo con su potencial para aumentar o disminuir la calidad ambiental. La revisión bibliográfica y la legislación de zonificación urbana se utilizaron para respaldar las inferencias sobre la calidad ambiental relacionada con cada uso de la tierra. Los cientos de diferentes usos del suelo identificados en las leyes de zonificación urbana se organizaron en forma de un subtítulo para mapear la escala de la parcela, que consta de 15 niveles de calidad ambiental, de acuerdo con las características de uso y tamaño del establecimiento. El subtítulo propuesto proporciona información importante para mapear la calidad ambiental urbana y la participación popular en la planificación, ya que simplifica el tratamiento complejo que se encuentra en la legislación de zonificación urbana.Palabras clave:  Planificación del paisaje. Ecología urbana. Clasificación de usos del suelo.

scholarly journals Humification degree of Rendzina soil humic acids influenced by carbonate leaching and land use

2015 ◽  
Vol 60 (4) ◽  
pp. 443-453 ◽  
Author(s):  
Svjetlana Radmanovic ◽  
Aleksandar Djordjevic ◽  
Natasa Nikolic
Keyword(s):  
Land Use ◽  
Humic Acids ◽  
Ph Value ◽  
Arable Land ◽  
Carbonate Content ◽  
Land Uses ◽  
Forest Land ◽  
Humification Degree ◽  
Carbonate Leaching

The humification degrees of humic acids extracted from calcareous and decarbonated Rendzinas under different land use were characterized upon their optical properties, to evaluate the influence of carbonate leaching (decarbonation) and different land uses. Decarbonation influenced the humification degree of humic acids positively. Base leaching and acidification of decarbonated Rendzinas led to a decrease in humification degree of humic acids. In calcareous Rendzinas, the humification degree of humic acids was in descending order: grassland>arable land>forest land, and in decarbonated Rendzinas: arable land>grassland>forest land. The humification degree of humic acids was higher in the calcareous forest and grassland Rendzinas compared to decarbonated Rendzinas, analogously in decarbonated arable land compared to calcareous arable land Rendzinas. Differences in the humification degree of humic acids among various land uses that emerged between calcareous and decarbonated Rendzinas indicate the dominant influence of soil chemical characteristics (carbonate content and pH value) compared with the quantity and quality of the organic litter input.

scholarly journals The content and composition of humus in pseudogleys of slopes and plains in South Macva and Pocerina

2013 ◽  
pp. 71-86
Author(s):  
Mladen Dugonjic ◽  
Svjetlana Cupac ◽  
Aleksandar Djordjevic ◽  
Mila Vicentijevic ◽  
Milan Knezevic ◽  
...  
Keyword(s):  
Land Use ◽  
Humic Acids ◽  
Humus Content ◽  
Arable Land ◽  
Fulvic Acids ◽  
Land Uses ◽  
Lower Content ◽  
Surface Horizon ◽  
Humus Quality

The scope of this paper was to examine the influence of two subtypes of pseudogley soil (of planes and of slopes) and three different land uses (forest, grassland and arable land) on the content and composition of humus in south Macva and Pocerina. The humus content was determined by dichromate method, and hu?mus components were measured using the method proposed by Kononova and Bel?cikova. The studied soils are mostly characterized by low humus content. Humus content is significantly higher in pseudogleys of plains compared to pseudogleys of slopes. Pseudogleys under grass and crops have significantly lower content of humus compared to the pseudogleys under forest. Important characteristic of hu?mus composition of surface horizon is dominant portion of fulvic over humic acids. Pseudogleys of plains have statistically significant higher amount of humic acids. The composition of humus is significantly different in pseudogley under forest compared to pseudogleys under grass and crops: it has more fulvic acids, less humin, and lower Ch:Cf ratio. Changes in pseudogley land use have produced better humus quality.

scholarly journals Influence of Land Use on Soil Physiochemical Properties in Semi-Humid Nsukka Area of Southeastern Nigeria

2021 ◽  
pp. 6-17
Author(s):  
Umeobi, E.C. ◽  
Ezeaku P. I. ◽  
Umeugokwe C. P. ◽  
Ezeaku V.I.
Keyword(s):  
Land Use ◽  
Oil Palm ◽  
Arable Land ◽  
Mean Value ◽  
Rubber Plantation ◽  
Land Uses ◽  
Surface Sampling ◽  
Southeastern Nigeria ◽  
Oil Palm Plantation ◽  
Surface Samples

The influence of four land uses (cultivated arable land, grassland, oil palm plantation and rubber plantation) on physical and chemical properties of coarsetextured acid soils was assessed in the semi-humid Nsukka area. Soil auger and core samples were used to achieve surface sampling at the depth intervals of 0-20 and 20-40cm in each land use type. Four diagnostic horizons were identified and sampled in each profile pit dug in each land use, which gave six samples per land use. Results showed that sand (90%) and silt (12%) fraction mean werehighest in oil palm plantation and rubber plantation respectively. The highest clay mean values were obtained from the surface samples (13%) of grassland land and the profile (24%) of rubber plantation. The oil palm plantation silt/clay (0.50) was less than unity and recorded the highest bulk density mean value (1.55 g/cm3 ). The highest value of saturated hydraulic conductivity (113.4 cm/hr) and available water capacity (53%) was recorded in the rubber plantation. The pH of the cultivated (5.7-6.8) and rubber plantation (6.2-6.3) soil increased with depth in contrast to grassland and oil palm plantation. The soil organic carbon and total nitrogen generally decreased with depth across the four land uses. The highest cation exchange capacity mean value was obtained from the surface samples of grassland (19 cmol/kg) and the profile of rubber plantation (16 cmol/kg). This shows that assessment of soil properties under different agronomic land uses will guide decisions on soil degradation associated with land uses

scholarly journals Changes in the Secondary Landscape Structure in Hruby Jesenik Mountains (Czech Republic)

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Adam Dostal ◽  
Ivo Machar ◽  
Peter Mackovcin
Keyword(s):  
Land Use ◽  
Czech Republic ◽  
Landscape Structure ◽  
Arable Land ◽  
Similarity Index ◽  
Land Use Classification ◽  
Ecological Stability ◽  
Support Tool ◽  
Starting Point ◽  
Study Results

AbstractThis study deals with the analysis of changes in the secondary landscape structure of the territory of the Jeseniky Mountains (Czech Republic) monitored in the years 1946, 1953, 1962, 2000, and 2016. The study analysed georeferencing aerial geodetic images in the QGIS 2.18 program. On the basis of the land use classification key that was created, historical changes were identified in the following categories of land use; forest, arable land, orchards, water surfaces, wild life refuges and scattered greenery, river networks, permanent grass stands, meadows and pastures, gardens and built-up areas, courtyards and hard surfaces. The surface areas of land use categories were utilized for the calculation of change indicators regarding the structure of the landscape (landscape similarity index, coefficient of ecological stability, and change index). The maps for land use created for individual historical periods functioned as the starting point for a comprehensive assessment of the landscape by means of a SWOT analysis, which created the basis for a proposal for permanently sustainable utilization of the landscape in the area that was monitored. The study results indicate that the analysis of the historical development of the secondary landscape structure may be utilized as a decision support tool when planning sustainable landscape management.

scholarly journals Arable and forest land user rent in a peri-urban district, Ghana

GeoJournal ◽  
2019 ◽  
Vol 85 (6) ◽  
pp. 1621-1633 ◽  
Author(s):  
Divine Odame Appiah ◽  
Emmanuel Mawuli Abalo ◽  
Gabriel Eshun
Keyword(s):  
Land Use ◽  
Significant Relationship ◽  
Arable Land ◽  
Sampling Procedure ◽  
Outcome Variable ◽  
Land Uses ◽  
Forest Land ◽  
Land Rent ◽  
Urban District ◽  
Residential Land

Abstract Land-use policies meant to mitigate deforestation activities in Ghana will have to consider the heterogeneity of the drivers of arable and forest land degradation. This would help avoid the one-size fits all approach to solving this problem. The urgency for this realisation is premised on the recent increasing monetary incentive to convert arable and forest land to other land uses in peri-urban Ghana. This study hypothesised that there is no significant relationship between land rent and the conversion probability from arable and forest land to other land uses such as commercial, industrial and residential land uses in Bosomtwe, a peri-urban district in the Ashanti region of Ghana. Four-hundred and one usufruct or land-owning households and individual landowners participated through a three-stage sampling procedure. The results indicated a significant relationship between higher land rent and conversion probability from arable land to other land uses such as commercial, industrial and residential land uses. Specifically, receiving land rent above GH¢400 (OR = 1.979) predicted the outcome variable in all three models. Moreover, being a female (OR = 0.612), ageing: 56 and 65 (OR = 2.158) and 76 and above (OR = 11.781), traders/food vendors (OR = 0.423) and widows (OR = 2.050) had some odds of predicting the outcome variable. The study recommends a reformation of government land use conversion policies and decisions in collaboration with landowners, to include parameters which assess the effect and benefits of land conversion decisions on biodiversity before leasing out land rights.

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