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Frontiers of Earth Science in China : Volume 11

Frontiers of Earth Science in China : Volume 11, Issue 3, September 2017

Headwater regions — Physical, ecological, and social approaches to understand these areas: introduction to the special issue

The significance of small streams

Hydroclimatological data and analyses from a headwaters region of Mongolia as boundary objects in interdisciplinary climate change research

Scales of snow depth variability in high elevation rangeland sagebrush

Using ground penetrating radar to assess the variability of snow water equivalent and melt in a mixed canopy forest, Northern Colorado

Effects of mountain pine beetle-killed forests on source water contributions to streamflow in headwater streams of the Colorado Rocky Mountains

Spatio-temporal snowmelt variability across the headwaters of the Southern Rocky Mountains

Effect of snow on mountain river regimes: an example from the Pyrenees

Using isotope methods to study alpine headwater regions in the Northern Caucasus and Tien Shan

Instream coliform gradients in the Holtemme, a small headwater stream in the Elbe River Basin, Northern Germany

Macroinvertebrate distribution and aquatic ecology in the Ruoergai (Zoige) Wetland, the Yellow River source region

Sediment transport in headwaters of a volcanic catchment—Kamchatka Peninsula case study

Modeling potential scenarios of the Tangjiashan Lake outburst and risk assessment in the downstream valley

A comparison of single- and multi-site calibration and validation: a case study of SWAT in the Miyun Reservoir watershed, China

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Macroinvertebrate distribution and aquatic ecology in the Ruoergai (Zoige) Wetland, the Yellow River source region

Content Provider	Springer Nature Link
Author	Zhao, Na Xu, Mengzhen Li, Zhiwei Wang, Zhaoyin Zhou, Hanmi
Copyright Year	2016
Abstract	The Ruoergai (Zoige) Wetland, the largest plateau peatland in the world, is located in the Yellow River source region. The discharge of the Yellow River increases greatly after flowing through the Ruoergai Wetland. The aquatic ecosystem of the Ruoergai Wetland is crucial to the whole Yellow River basin. The Ruoergai wetland has three main kinds of water bodies: rivers, oxbow lakes, and marsh wetlands. In this study, macroinvertebrates were used as indicators to assess the aquatic ecological status because their assemblage structures indicate long-term changes in environments with high sensitivity. Field investigations were conducted in July, 2012 and in July, 2013. A total of 72 taxa of macroinvertebrates belonging to 35 families and 67 genera were sampled and identified. Insecta was the dominant group in the Ruoergai Basin. The alpha diversity of macroinvertebrates at any single sampling site was low, while the alpha diversity on a basin-wide scale was much higher. Macroinvertebrate assemblages in rivers, oxbow lakes, and marsh wetlands differ markedly. Hydrological connectivity was a primary factor causing the variance of the bio-community. The river channels had the highest alpha diversity of macroinvertebrates, followed by marsh wetlands and oxbow lakes. The density and biomass of Gastropoda, collector filterers, and scrapers increased from rivers to oxbow lakes and then to marsh wetlands. The river ecology was particular in the Ruoergai Wetland with the high beta diversity of macroinvertebrates, the low alpha diversity of macroinvertebrates, and the low taxa richness, density, and biomass of EPT (Ephemeroptera, Plecoptera, Trichoptera). To maintain high alpha diversity of macroinvertebrates macroinvertebrates in the Ruoergai Wetland, moderate connectivity of oxbow lakes and marsh wetlands with rivers and measures to control headwater erosion are both crucial.
Starting Page	554
Ending Page	564
Page Count	11
File Format	PDF
ISSN	20950195
Journal	Frontiers of Earth Science in China
Volume Number	11
Issue Number	3
e-ISSN	20950209
Language	English
Publisher	Higher Education Press
Publisher Date	2016-12-14
Publisher Institution	Chinese Universities
Publisher Place	Beijing
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	macroinvertebrates aquatic ecology hydrological connectivity Ruoergai Wetland Yellow River source Earth Sciences
Content Type	Text
Resource Type	Article
Subject	Earth and Planetary Sciences

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