A sampling strategy to assess the effects of land use on microbial functional diversity in soils

Soil Research ◽  
1999 ◽  
Vol 37 (4) ◽  
pp. 593 ◽  
Author(s):  
Bradley P. Degens ◽  
Maja Vojvodi´c-Vukovi´c
Keyword(s):  
Land Use ◽  
Functional Diversity ◽  
Sampling Strategy ◽  
Sampling Strategies ◽  
Land Uses ◽  
Microbial Functional Diversity ◽  
Transect Sampling ◽  
Catabolic Response ◽  
Response Profiles ◽  
Effects Of Land Use

A suitable sampling strategy is necessary for broad-scale investigations of the effects of land use on microbial functional diversity in soils. We report on the development of procedures for sampling and handling field soils for assessment of heterotrophic functional diversity [by analysis of catabolic response profiles (CRPs)]. Individual CRPs were subject to factor analysis and the results were used for statistical comparisons of the soils. Transect sampling comparing CRPs in forest with pasture showed that most variation was attributable to differences between land uses, followed by field replication and laboratory replication. Differences in CRPs between pasture compared with pine forest, horticultural cropping, or maize cropping could also be determined by a similar sampling strategy. Variation in CRPs between land uses by using these sampling approaches was greater than variation within land uses. CRPs varied little between seasons in 2 land uses and samples could also be stored up to 5 months at 5°C with little change in CRPs. We recommend that microbial functional diversity (CRPs) can be assessed in different land uses without laboratory replication and that transect sampling strategies are suitable for distinguishing clear differences between land uses.

Response of soil microbial functional diversity to different land-use types in wetland of Poyang Lake, China

2015 ◽  
Vol 35 (4) ◽  
Author(s):  
张杰 ZHANG Jie ◽  
胡维 HU Wei ◽  
刘以珍 LIU Yizhen ◽  
葛刚 GE Gang ◽  
吴兰 WU Lan
Keyword(s):  
Land Use ◽  
Functional Diversity ◽  
Poyang Lake ◽  
Microbial Functional Diversity ◽  
Soil Microbial ◽  
Land Use Types

scholarly journals Assessment of soil microbial functional diversity: land use and soil properties affect CLPP-MicroResp and enzymes responses

Pedobiologia ◽  
2018 ◽  
Vol 66 ◽  
pp. 36-42 ◽  
Author(s):  
M.C. Moscatelli ◽  
L. Secondi ◽  
R. Marabottini ◽  
R. Papp ◽  
S.R. Stazi ◽  
...  
Keyword(s):  
Land Use ◽  
Soil Properties ◽  
Functional Diversity ◽  
Microbial Functional Diversity ◽  
Soil Microbial

scholarly journals Rangeland conversion to dryland and its effects on species diversity and richness

2019 ◽  
Vol 20 (7) ◽  
Author(s):  
REZA Hasanpori ◽  
ADEL Sepehry ◽  
HOSSEIN Barani
Keyword(s):  
Land Use ◽  
Species Diversity ◽  
Vegetation Cover ◽  
Land Use Changes ◽  
Plant Management ◽  
Land Conversion ◽  
Land Uses ◽  
Environmental Threats ◽  
Species Numbers ◽  
Effects Of Land Use

Abstract. Hasanpori R, Sepehry A, Barani H. 2019. Rangeland conversion to dryland and its effects on species diversity and richness. Biodiversitas 20: 2043-2047.  Species diversity and richness status in ecosystem is important in confront to environmental threats and is guidance in plant management. Due to increasing land use changes and destruction of rangelands in western Iran, this research was conducted to study the effects of land use change from rangeland to dryland on species diversity and richness of vegetation cover in three land uses of rangeland, dryland and abandoned dryland. Vegetation cover data were collected from established plots in each land use. Species diversity and richness were calculated in each land use by Simpson and Shannon indices and Menhinick and Margalef ones, respectively. Results showed that these indices are significantly different at 95% level in three land uses. The highest species diversity and richness indices were in rangeland and the least were in dryland. So, we found that four above measured indices, are illustrative and accurate enough to demonstrate differences between several land-use diversity and richness. Simplification on a dynamic and diverse ecosystem, and land conversion to dryland reduced plant species numbers in the new ecosystem, and simplify species composition, so simple dryland ecosystem would be fragile against environmental threats. Therefore to reduce unfavorable effects of land use changing, paying more attention to species diversity conservation must be a base to management decisions.

scholarly journals Assessing the effects of land use on biodiversity in the world’s drylands and Mediterranean environments

2019 ◽  
Vol 29 (2) ◽  
pp. 393-408 ◽  
Author(s):  
Diego García-Vega ◽  
Tim Newbold
Keyword(s):  
Land Use ◽  
Natural Habitat ◽  
High Sensitivity ◽  
Mediterranean Ecosystems ◽  
Ecosystem Functions ◽  
Land Uses ◽  
Mediterranean Environments ◽  
Biodiversity Changes ◽  
The Impact ◽  
Effects Of Land Use

Abstract Biodiversity models make an important contribution to our understanding of global biodiversity changes. The effects of different land uses vary across ecosystem types, yet most broad-scale models have failed to account for this variation. The effects of land use may be different in systems characterized by low water availability because of the unusual conditions within these systems. Drylands are expanding, currently occupying over 40% of the terrestrial land, while Mediterranean systems are highly endangered biodiversity hotspots. However, the impact of land use on biodiversity in these biomes is yet to be assessed. Using a database of local biodiversity surveys, we assess the effects of land use on biodiversity in the world’s drylands and Mediterranean ecosystems. We compare the average species richness, total abundance, species diversity, ecological dominance, endemism rates, and compositional turnover across different land uses. In drylands, there was a strong turnover in species composition in disturbed land uses compared with undisturbed natural habitat (primary vegetation), but other measures of biodiversity did not respond significantly. However, it is important to note that the sample size for drylands was very low, a gap which should be filled promptly. Mediterranean environments showed a very high sensitivity of biodiversity to land uses. In this biome, even habitat recovering after past disturbance (secondary vegetation) had substantially reduced biodiversity and altered community composition compared with primary vegetation. In an effort to maintain original biodiversity and the ecosystem functions it supports within Mediterranean biomes, conservation measures should therefore prioritize the preservation of remaining primary vegetation.

Effects of land use on taxonomic and functional diversity: a cross-taxon analysis in a Mediterranean landscape

Oecologia ◽  
2015 ◽  
Vol 181 (4) ◽  
pp. 959-970 ◽  
Author(s):  
Violeta Hevia ◽  
Carlos P. Carmona ◽  
Francisco M. Azcárate ◽  
Mario Torralba ◽  
Paloma Alcorlo ◽  
...  
Keyword(s):  
Land Use ◽  
Functional Diversity ◽  
Mediterranean Landscape ◽  
Effects Of Land Use
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