Showing 1 - 19 results of 19 for search '"Dongting Lake"', query time: 0.07s Refine Results
  1. 1

    The Effect of Land-Use Intensity on Surface Temperature in the Dongting Lake Area, China by Wenmin Hu, Weijun Zhou, Hongshi He

    Published 2015-01-01
    “…The relationships between observed rapid changes in land use and temperature in the Dongting Lake area from 2001 to 2010 were examined. The results revealed the following features: (1) The temperature increased when the land-use intensity increased via a hierarchical transition owing to grass and forest land reductions of 26.25% and 11.74%, respectively; built-up land increased by 48.45%. (2) The temperature increase was driven more by the external environment than by land-use intensity changes. …”
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    Effect of Different Static Load Test Methods on the Performance of Combined Post-Grouted Piles: A Case Study in the Dongting Lake Area by Yu Du, Kai Qi, Run-Ze Zhang, Feng Zhou, Zhi-Hui Wan

    Published 2025-01-01
    “…To investigate the effect of combined end-and-shaft post-grouting on the vertical load-bearing performance of bridge-bored piles in the Dongting Lake area of Hunan, two post-grouted piles were subjected to bi-directional O-cell and top-down load tests before and after combined end-and-shaft grouting, based on the Wushi to Yiyang Expressway project. …”
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    Optimization of land use structure integrating ecosystem service function and economic development—A case study in Dongting Lake Ecological and Economic Zone, China by Yifan Zhu, Min Zhou

    Published 2025-06-01
    “…The modeling results show that the economic benefits of the optimized Dongting Lake Eco-Economic Zone range between [15622.72 × 108,19150.50 × 108] CNY, and the optimized areas of farmland, woodland, grassland, water area, construction land, and unutilized land are[25686.99,25932.61]km2, [22093.37,22295.23]km2,[837.11108,841.41]km2,[7536.86,7767.01]km2,[2660.92,2987.49]km2,[1090.72,1116.36]km2.and the ecosystem service function, pollutant emission level and ecosystem service value of the optimized Dongting Lake Eco-Economic Zone in the optimization scenario, which guarantees higher economic benefits than the status quo scenario, show a better performance than the status quo scenario as a whole. …”
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    <i>Broussonetia papyrifera</i> Extract Can Be Used as a Raw Material Source for a Sterility Agent for <i>Microtus fortis</i> by Shuangye Wang, Tian Lan, Yunlin Zhao, Wanfu Liu, Tian Huang, Meiwen Zhang, Zhiyuan Hu, Zhenggang Xu

    Published 2025-01-01
    “…<i>Broussonetia papyrifera</i> is a plant material that has shown the potential to inhibit the reproduction of <i>Microtus fortis</i>, a species that causes serious damage to crops in the Dongting Lake region in China. <i>M. fortis</i> was treated with different doses of <i>B. papyrifera</i> leaf methanol extracts. …”
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    Ecological risks in downstream lakes exacerbated by the three Gorges reservoir by Xinxin Chen, Yaxin Guo, Junhong Zhang, Xiao Han, Weiya Huang, Yao Yue

    Published 2025-01-01
    “…The results showed that (1) TGD storage led to a decrease in the number of high pulses at downstream stations, resulting in wetland degradation in the riverine region; (2) the SI (Shannon’s diversity index) based on hydrological calculations became smaller, indicating that the downstream biodiversity showed a decreasing trend; (3) the diversion ratio and the confluence ratio of Dongting Lake and the Yangtze River decreased at the same time, and the connectivity decreased, which would lead to an increase in the degree and frequency of droughts during the dry season;(4) after the regulation of the TGD, the low-risk months were transformed into medium-risk months of the Dongting Lake basin, indicating a deterioration of the ecological situation in this region. …”
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    Analysis of Flow and Sediment Diversion at Three Outlets and Changes on FlatBeach Channel Morphology of Jingjiang River under the Condition of Fresh Water and Sediment by ZHOU Caijin, SHEN Jian, XIONG Hui, DU Xingqiang

    Published 2020-01-01
    “…The Jingjiang section at the middle reaches of the Yangtze River is connected toDongting Lake, the second largest freshwater lake in China through three-outlet channels, forminga complex relationship between rivers and lakes. …”
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    Water and Sediment Process Variation in Jingjiang River in the Middle Reaches of the Yangtze River and Response Analysis of Flow Capacity of Three Outlets by SHEN Jian, YUAN Song

    Published 2024-01-01
    “…The Jingjiang reach of the middle reaches of the Yangtze River is connected to Dongting Lake through three outlets,forming an extremely complex and far-reaching relationship between the rivers and lakes.The operation of the Three Gorges Project has changed the natural water and sediment process in the Jingjiang River downstream of the dam.This leads to “flattening” flood processes in the main stream,extended middle water period,and an increase in low flow,which has promoted the continuous response of the three outlets to the above water and sediment conditions.Meanwhile,this paper employs a series of long-term measured hydrological consolidation data and river channel terrain observation results from nearly 70 years.Based on this,the response characteristics of the three outlets to the water and sediment variation process of the Jingjiang River are analyzed,and the flow and sediment diversion,river regime,and erosion and sedimentation evolution laws in the entrance area are summarized.The results show that in the same inflow conditions before and after the operation of the Three Gorges Project,the diversion ratio of three outlets decreases,and the sediment diversion corresponds to the sediment from the upstream branch city.Additionally,the sediment diversion ratio continues its gradually increasing trend.After the impoundment and operation of the Three Gorges Reservoir,the riverbed of three outlets is generally in a state of erosion,with a total erosion amount of 51.47 million m<sup>3</sup> from 2003 to 2011 and 99 million m<sup>3</sup> from 2011 to 2016.The entrance areas have been expanded,but the actual flow capacity has not been significantly improved.…”
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    Analysis of Ecological Water Replenishment Cycle and Flow Field Distribution Characteristics of Datong Lake by ZHAO Weiming, LIU Qi, SHENG Dong, TAN Jun, HUANG Cao

    Published 2022-01-01
    “…In the post-Three Gorges period,the deep evolution of the relationship between the Yangtze River and Dongting Lake breaks the hydraulic pattern that the water flows into Datong Lake from the northwestern corner and discharges from the southeastern corner of Datong Lake.To study the ecological water replenishment cycle and the characteristics of flow field distribution of Datong Lake under variant environment,we build a two-dimensional hydrodynamic model of water systems based on MIKE 21FM and simulate the hydrodynamic conditions for the project of river-lake connection and ecological water replenishment of Datong Lake.Then,the water replenishment cycle and flow field morphological characteristics of Datong Lake are studied under six scenarios,such as different ecological water replenishment flow and different gate control,and the critical point of ecological water replenishment efficiency is presented.The results reveal that the flow rate distribution of the control scheme of “single in-double out” is more uniform than that of the control scheme of “single in-single out.” …”
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    Influence of Underlying Surface on Distribution of Hourly Heavy Rainfall over the Middle Yangtze River Valley by Yinglian Guo, Jisong Sun, Guirong Xu, Zhiming Zhou, Jizhu Wang

    Published 2022-01-01
    “…The HHR frequency of mountainous area in the TLB-YRV is much higher than that of Dongting Lake on its left and is equivalent to the HHR frequency of Poyang Lake on its right. …”
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    Population dynamics and the role of protected areas in China’s milu deer (Elaphurus davidianus) rewilding by Zhibin Cheng, Yuanyuan Zhang, Wei Liu, ZhenyuZhong, Jiade Bai, Kun Cheng, Chengmiao Feng, Libo Wang, Yuming Zhang, Hongxin Yi, Qingyun Guo, Qingxun Zhang, Pan Zhang

    Published 2025-01-01
    “…To identify the population growth of milu deer (Elaphurus davidianus)in protected areas and unprotected areas, we fitted the population dynamics curve of reintroduced free-ranging and wild populations based on long-term monitoring data in four protected areas: Jiangsu Dafeng Milu National Nature Reserve, Hubei Shishou Milu National Nature Reserve, Hunan East Dongting Lake National Nature Reserve, and Jiangxi Poyang Lake area. …”
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