scholarly journals Simulating Microwave Scattering for Wetland Vegetation in Poyang Lake, Southeast China, Using a Coherent Scattering Model

2015 ◽  
Vol 7 (8) ◽  
pp. 9796-9821 ◽  
Author(s):  
Jingjuan Liao ◽  
Tao Xu ◽  
Guozhuang Shen
Keyword(s):  
Poyang Lake ◽  
Coherent Scattering ◽  
Wetland Vegetation ◽  
Southeast China ◽  
Microwave Scattering ◽  
Scattering Model

Extension of the Monte Carlo Coherent Microwave Scattering Model to Full Stage of Rice

2015 ◽  
Vol 12 (5) ◽  
pp. 988-992 ◽  
Author(s):  
Long Liu ◽  
Kun Li ◽  
Yun Shao ◽  
Nicolas Pinel ◽  
Zhi Yang ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Microwave Scattering ◽  
Scattering Model

scholarly journals A study of the relationship between wetland vegetation communities and water regimes using a combined remote sensing and hydraulic modeling approach

2016 ◽  
Vol 47 (S1) ◽  
pp. 278-292 ◽  
Author(s):  
Tan Zhiqiang ◽  
Zhang Qi ◽  
Li Mengfan ◽  
Li Yunliang ◽  
Xu Xiuli ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Poyang Lake ◽  
Spatial Scales ◽  
Hydraulic Modeling ◽  
Wetland Vegetation ◽  
Vegetation Distribution ◽  
Vegetation Communities ◽  
Water Regimes ◽  
Hydrological Conditions ◽  
Hydrologic Condition

Hydrologic condition is a major driving force for wetland ecosystems. The influence of water regimes on vegetation distribution is of growing interest as wetlands are increasingly disturbed by climate change and intensive human activities. However, at large spatial scales, the linkage between water regimes and vegetation distribution remains poorly understood. In this study, vegetation communities in Poyang Lake wetland were classified from remote sensing imagery. Water regimes characterized by inundation duration (IDU), inundation depth (IDE), and inundation frequency were simulated using physics-based hydraulic models and were then linked with vegetation communities by a Gaussian regression model. The results showed that the Carex community was found to favor more hydrologic environments with longer IDU and deeper IDE in comparison to the Phragmites community. In addition, we found that the Carex community could survive in a relatively wider variety of hydrological conditions than the Phragmites community. For the typical sub-wetlands of the Poyang Lake National Nature Reserve (PLNNR), only the influence of IDU on the distribution of vegetation communities was significant. Outcomes of this research extend our knowledge of the dependence of wetland vegetation on hydrological conditions at larger spatial scales. The results provide practical information for ecosystem management.

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