Relationship between the hydrological conditions and the distribution of vegetation communities within the Poyang Lake National Nature Reserve, China

Zhang, Lili; Yin, Jun; Jiang, Yunzhong; Wang, Hao

doi:10.1016/j.ecoinf.2012.05.006

Cited by 120 publications

(50 citation statements)

References 17 publications

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“…The growth scope and distributed elevation of the each type of wetland vegetation is different. The distributed elevation of the vegetation is mostly between 10-17 m [22], and in general followed the sequence of reed > carex > sparse-grassland > canarygrass > marsh from high to low. Thus, reed is the representative of highland-emergent aquatic plants, while canarygrass is the representative of lowland-emergent aquatic plant in Poyang Lake.…”

Section: Distribution Characteristics Of the Spring Vegetation In Poymentioning

confidence: 99%

Effects of Water Regime on Spring Wetland Landscape Evolution in Poyang Lake between 2000 and 2010

You

Fan

et al. 2017

Water

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Abstract:Water regime was one of the most important driving factors in the formation of wetland landscape and the growth and distribution pattern of wetland vegetation. Currently, research on the relationship between wetland landscape and water regime was mostly focused in autumns and winters in Poyang Lake, and lack of research in springs. Based on the nine high-resolution spring remote sensing images during 2000-2010, the classification characteristics of wetland landscape and spatial distribution pattern of vegetation and their succession trends in Poyang Lake were studied through quantitative interpretation technology and multivariate statistical analysis. Combined with water level fluctuations characteristics of the five monitoring hydrological stations (i.e., Hukou, Xingzi, Duzhan, Tangyin and Kangshan) at the Poyang Lake, the inter-annual and intra-annual water level variations of Poyang Lake were analyzed. The study was aimed to investigate the quantitative effects of water regime on the spring wetland landscape and spatial distribution pattern of vegetation and their succession trends in Poyang Lake. The results showed that: (1) the maximum scope of water levels of the five monitoring stations varied from 8.5 m to 13.57 m, and the water level of Poyang lake showed a downward trend, declining at an average rate of 0.16 m per year during 2000-2010; (2) the total area of the 10 types of the landscapes did not change significantly, which was always maintained at about 3026 km 2 and the total area of vegetation coverage showed increasing trend during 2000-2010 in Poyang Lake, with a maximum area in 2008 and a minimum area in 2010; (3) The water level change was consistent with the area of the lake water, and was inconsistent with the areas of the mudflat, vegetation and land-water transition zone. The highest linear fitting degree with water level was the area of the land-water transition zone, followed by the lake water and vegetation. The results were helpful to further explore the eco-hydrology process and its trend at Poyang Lake wetland, a scientific reference for the maintenance of stable ecosystem functions of the seasonal freshwater lake wetland.

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Section: Distribution Characteristics Of the Spring Vegetation In Poymentioning

confidence: 99%

Effects of Water Regime on Spring Wetland Landscape Evolution in Poyang Lake between 2000 and 2010

You

Fan

et al. 2017

Water

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“…The spatial and temporal succession of vegetation has been recognized as one of the important factors to understand riparian ecosystems during the last decades (Zhang et al 2012). This study aims at connecting hydrological characteristics and vegetation, and suggests a methodology to approach this connection.…”

Section: Resultsmentioning

confidence: 99%

Assessment of hydrological regimes for vegetation on riparian wetlands in Han River Basin, Korea

Kwak¹,

Kim²,

Kim³

et al. 2017

Terr. Atmos. Ocean. Sci.

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Hydrological regimes are regarded as one of the major determinants for wetland ecosystems, for they influence species composition, succession, productivity, and stability of vegetation communities. Since Korea launched the Four Major River Restoration Project in 2007, the water regimes of many of the riparian wetlands have changed, that is potentially affecting vegetation properties. For ecological conservation and management, it is important to connect hydrological characteristics and vegetation properties. The objective of this study is to investigate the influence of hydrological regimes on vegetation community, and develop a methodology that can connect them. Inundated exceedance probability (IEP) and its district concept are suggested to gain insights into hydrological regimes on the Binae wetland that is rehabilitated by the Restoration Project in 2012 and belong to the riparian zone. Results of this study indicate that the areas with P = 0.08 or lower IEPs should have the disturbance for vegetation communities, or could be changed to a hydrophilic vegetation in the study area, and it should be considered in the restoration and rehabilitation project to conserve legally protected or endangered vegetation.

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“…All of the daily runoff records and climate data provided by MBYR and CMA had gone through a standard quality control process before delivery [34,41,42]. No missing data were found in the variables used in this study, except for daylight hours.…”

Section: Data Preparationmentioning

confidence: 98%

Accessing the Difference in the Climate Elasticity of Runoff across the Poyang Lake Basin, China

Fan

Tao

et al. 2017

Water

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Understanding the effects of climate and catchment properties' changes on water yield is a challenging component in assessments of future water resources. Here, we spatially applied the water-energy balance equation, based on the widely-used Budyko framework, to quantify the temporal and spatial differences of the climate elasticity of runoff in the Poyang Lake Basin (PYLB), highlighting the influence of the catchment properties' parameter n variation on the climate elasticity and runoff prediction. By using Sen's slope and the Mann-Kendall method, we found that, for the whole study period , annual temperature in PYLB significantly increased at a rate of 1.44% per decade. Basin-wide wind speed and net radiation had been declining at 0.17 m/s and 46.30 MJ/m 2 per decade. No significant trend was detected in precipitation and relative humidity. The moving average method was applied to evaluate the temporal pattern of n. The results showed that the calibrated catchment properties' parameter and the derived elasticities were not constant during the past 50 years. We found that in most sub-basins, the n values increased during 1970-1980, followed by a decreasing trend in the period from 1980 to 1990, whereas the n value in Fuhe sub-basin kept increasing for the almost the whole study period. In addition, the climate elasticity is highly correlated with the n value, indicating that the catchment properties' parameter was the dominant factor influencing climate elasticity in PYLB in the past 50 years. We also attempted to predict the runoff trend with the consideration of trends in n. However, in some sub-basins, there were still considerable differences between the predicted runoff trend and the observed one. The method used here to evaluate the temporal pattern of n should be an extension of the existing literature and will provide a better understanding of elasticity in the regional hydrological cycle.

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Relationship between the hydrological conditions and the distribution of vegetation communities within the Poyang Lake National Nature Reserve, China

Cited by 120 publications

References 17 publications

Effects of Water Regime on Spring Wetland Landscape Evolution in Poyang Lake between 2000 and 2010

Effects of Water Regime on Spring Wetland Landscape Evolution in Poyang Lake between 2000 and 2010

Assessment of hydrological regimes for vegetation on riparian wetlands in Han River Basin, Korea

Accessing the Difference in the Climate Elasticity of Runoff across the Poyang Lake Basin, China

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