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Species Composition and Species Richness in the Hetao Irrigation Region Drainage Ditches, Northern China

Species Composition and Species Richness in the Hetao Irrigation Region Drainage Ditches,... Drainage ditches play an important role in maintenance of plant species diversity. We investigated plant species composition and diversity, and soil and water chemical properties in drainage ditches in the Hetao Irrigation Region of northern China. We compared species composition similarity within the same and among different drainage areas, and compared diversity of plant species, among different ditch sizes and slope positions. We identified a total of 70 plant species, which belonged to 64 genera and 30 families in the drainage ditch. The most frequent family was Compositae representing 15.7% of the total flora; Phragmites australis (Cav.) Trin. ex Steud was the most widespread species with a frequency of more than 60% in all plots. The highest similarity values occurred in lateral ditches within the same drainage areas, and in main ditches among different drainage areas. The coefficient of variation of total salt in soil was closely related to species similarity in all ditches. Ditch size and position were significantly correlated with the indexes of species diversity. Higher plant α-diversity occurred in smaller ditches and tended to be the highest at the transition zone and on the slope of the ditches. The response of species composition and diversity to environmental factors was significant for saline concentrations. Reducing the current water and soil saline contents, while maintaining current slope soil nitrogen content was suggested as an optimal way of maintaining high species diversity. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Arid Land Research and Management Taylor & Francis

Species Composition and Species Richness in the Hetao Irrigation Region Drainage Ditches, Northern China

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Species Composition and Species Richness in the Hetao Irrigation Region Drainage Ditches, Northern China

Abstract

Drainage ditches play an important role in maintenance of plant species diversity. We investigated plant species composition and diversity, and soil and water chemical properties in drainage ditches in the Hetao Irrigation Region of northern China. We compared species composition similarity within the same and among different drainage areas, and compared diversity of plant species, among different ditch sizes and slope positions. We identified a total of 70 plant species, which belonged to...
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Publisher
Taylor & Francis
Copyright
Copyright Taylor & Francis Group, LLC
ISSN
1532-4990
eISSN
1532-4982
DOI
10.1080/15324982.2012.721857
Publisher site
See Article on Publisher Site

Abstract

Drainage ditches play an important role in maintenance of plant species diversity. We investigated plant species composition and diversity, and soil and water chemical properties in drainage ditches in the Hetao Irrigation Region of northern China. We compared species composition similarity within the same and among different drainage areas, and compared diversity of plant species, among different ditch sizes and slope positions. We identified a total of 70 plant species, which belonged to 64 genera and 30 families in the drainage ditch. The most frequent family was Compositae representing 15.7% of the total flora; Phragmites australis (Cav.) Trin. ex Steud was the most widespread species with a frequency of more than 60% in all plots. The highest similarity values occurred in lateral ditches within the same drainage areas, and in main ditches among different drainage areas. The coefficient of variation of total salt in soil was closely related to species similarity in all ditches. Ditch size and position were significantly correlated with the indexes of species diversity. Higher plant α-diversity occurred in smaller ditches and tended to be the highest at the transition zone and on the slope of the ditches. The response of species composition and diversity to environmental factors was significant for saline concentrations. Reducing the current water and soil saline contents, while maintaining current slope soil nitrogen content was suggested as an optimal way of maintaining high species diversity.

Journal

Arid Land Research and Management – Taylor & Francis

Published: Apr 1, 2013

Keywords: ditch size; nutrient; saline concentrations; slope effect; species composition similarity; species diversity

References

  • Declining plant species richness of grassland ditch banks-a problem of colonisation or extinction?
  • Vegetative and structural characteristics of agricultural drainages in the Mississippi Delta landscapes
  • Evaluating salinity distribution in soil irrigated with saline water in arid regions of northwest China
  • The mangrove swamp and salt marsh communities of the Sydney District: III. Plant growth in relation to salinity and waterlogging
  • Interactions between marsh plant species vary in direction and strength depending on environmental and consumer context
  • Soil N and salinity leaching after the autumn irrigation and its impact on groundwater in Hetao Irrigation District, China
  • The diversity of the flora of drainage ditch in the valley of the Ina river
  • Conservation of aquatic plants in artificial watercourses: are main drains a substitute for vulnerable navigation canals?
  • Increased salinization of fresh water in the northeastern United States
  • Some ecophysiological aspects of seed germination in halophytes
  • Spatial variation in ditch bank plant species composition at the regional level: the role of environment and dispersal
  • Ditch plant response to variable flooding: A case study of Leersia oryzoides (rice cutgrass)
  • Edaphic characterization and soil ionic composition influencing plant zonation in a semiarid Mediterranean salt marsh
  • Nitrogen and phosphorus additions negatively affect tree species diversity in tropical forest regrowth trajectories
  • Plant communities of field boundaries in Finnish farmland
  • The nature value of the ditch vegetation in peat areas in relation to farm management
  • Factors affecting the vegetation of ditch banks in peat areas in the western Netherlands