Cited by 258Freshwater macroinvertebrate diversity and ecologySoil and Water Nutrient DynamicsWater Quality and Pollution Assessment

Effects of land use on water chemistry and macroinvertebrates in two streams of the Piracicaba river basin, south-east Brazil

Ometo, Jean Pierre H. B., Martinelli, Luiz A., Ballester, Maria Victoria, Gessner, Alaídes, Krusche, Alex V., Victoria, Reynaldo L., Williams, Michael·2000·Freshwater Biology

Abstract

1 Several studies have shown that land use has a strong influence on river chemistry and its biotic components. Most of these studies focused on nitrogen in temperate American and European catchments. Much less is known about the relationship between stream conditions and land use in tropical areas of developing countries. 2 Besides climate, there are three important differences between attributes of temperate and tropical catchments: non-point sources are the dominant contributor of pollution in USA, whereas point source pollution is the most important in our study; use of fertilizer is much smaller in developing countries, and the type of agriculture and management practices are distinct. 3 We test whether the chemical composition of streams and their macroinvertebrate communities can be related to land use. Accordingly, we compared the variability of chemical composition and macroinvertebrate communities in the streams of two catchments (Pisca and Cabras) belonging to the same ecoregion, but having different types of land use. 4 The main land use in the Pisca catchment in 1993 was sugar cane (62%), followed by pasture (22%) and urban centres (10%). In contrast, the main land use in the Cabras catchment was pasture (60%), followed by annual crops (13%) and forest (10%); urban centres occupied only 2% of the catchment. 5 In the Cabras catchment, most of the parameters correlated with a land use index (LUI) ( Fig. 2). However, only conductivity, major cations and major anions (with exception of sulfate) had a statistically significant correlation coefficient. More than 90% of the variance was explained for these parameters. DIC, NO3 and richness of invertebrates (RI) also strongly correlated with LUI (R2 = 0.75), although these correlation coefficients were not significant. Total suspended solids (TSS) had a significant correlation with LUI (R2 = 0.98), but, the correlation was inverse. In the Pisca catchment, conductivity, major cations (with exception of potassium), major anions, and DIC, DO, and DOC had a strong and statistically significant correlation with LUI. Correlation coefficients were also high for respiration rate, although the correlation was not statistically significant. Figure 2Open in figure viewerPowerPoint Relationships between variables and LUI (land use index) for the Cabras (closed circle) and Pisca (open circle) catchments. Both catchment were pooled together in this figure, however, statistical tests were performed separately for each catchment.

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Crossref · 10.1046/j.1365-2427.2000.00557.x

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Authors
Ometo, J. P. H. B., Martinelli, L. A., Ballester, M. V., Gessner, A., Krusche, A. V., Victoria, R. L., & Williams, M.
Venue
Freshwater Biology
Publisher
Wiley
Published
2000-06
Volume
44
Issue
2
Pages
327-337
ISSN
  • 0046-5070 (ISSN-L)
  • 1365-2427
OpenAlex
W2132027768
Cited by
258
References
45
Citations by year
2026: 3 · 2025: 1 · 2024: 4 · 2023: 7 · 2022: 9 · 2021: 6 · 2020: 11 · 2019: 11 · 2018: 14 · 2017: 14 · 2016: 5 · 2015: 15 · 2014: 12 · 2013: 11 · 2012: 18
FWCI
6.86
Type
journal article
Language
en
Open access
closed
Locations
Freshwater Biology (publishedVersion)
Funders
  • Fundação de Amparo à Pesquisa do Estado de São Paulo
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico
Topics
  • Physical Sciences › Environmental Science › Ecology › Freshwater macroinvertebrate diversity and ecology
  • Physical Sciences › Environmental Science › Environmental Chemistry › Soil and Water Nutrient Dynamics
  • Physical Sciences › Environmental Science › Water Science and Technology › Water Quality and Pollution Assessment
Keywords
land use, stream water chemistry, macroinvertebrate communities, land use index, Piracicaba River basin, sugarcane cultivation, pasture, point source pollution, conductivity, major cations and anions, dissolved inorganic carbon, total suspended solids, dissolved oxygen, dissolved organic carbon, respiration rate, catchment comparison, tropical streams

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