Yin Dechao
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View article: Investigation of groundwater circulation models in the Jiuquan Basin
Investigation of groundwater circulation models in the Jiuquan Basin Open
The Jiuquan Basin, with area of 6,800 square kilometers, located in the arid northwest of China, is a vital part of the Hexi Corridor. Investigating its groundwater circulation model is essential for understanding regional hydrogeological …
View article: Hydrochemical Characteristics and Quality Evaluation of Groundwater in Jinta Basin, Northwest China
Hydrochemical Characteristics and Quality Evaluation of Groundwater in Jinta Basin, Northwest China Open
The ecological environment of the northwest inland basin is fragile. The groundwater environment is a crucial influencing factor for the harmonious and sustainable development of the local social economy and the ecological environment. It …
View article: Runoff evolution and wetland ecological response in Lake Baiyangdian Basin in recent 60 years
Runoff evolution and wetland ecological response in Lake Baiyangdian Basin in recent 60 years Open
白洋淀是雄安新区的核心生态功能区，近几十年来面临水源不足、湿地萎缩等生态环境问题.选取白洋淀流域上游王快、西大洋及拒马河3个子流域开展河川径流演变研究，结合1969年以来18期白洋淀湿地遥感影像，揭示白洋淀流域河川径流驱动湿地演变的过程机制.结果表明：近60年来白洋淀流域山区径流量呈持续衰减趋势，从P1阶段（1961—1979年）至P3阶段（1997—2019年），典型子流域年径流系数均值由0.29降至0.12，山区年径流总量由30.84×108 m<…
View article: Distribution characteristics and source of the main environmental elements in the surface soil of Lake Baiyangdian wetlands
Distribution characteristics and source of the main environmental elements in the surface soil of Lake Baiyangdian wetlands Open
白洋淀是雄安新区生态共同体的重要组成部分，在“白洋淀生态环境治理和保护规划”中，淀区内纯水村和耕地将被淹没，而上述陆地的土壤环境元素分布特征及来源仍缺乏系统调查和分析.本文以淀区内现有0~20 cm土壤为研究对象，以环境元素As、Hg、Cd、Cr、Pb、Ni、Cu、Zn、N、P和土壤类型、质地为研究要素，以统计描述、方差分析、相关分析和因子分析为研究手段对淀区内土壤主要环境元素分布特征和来源进行刻画和分析.结果表明：淀区主要环境元素在不同土地类型的差异性分布是大气沉降和人类…
View article: Stoichiometric characteristics of carbon, nitrogen and phosphorus in surface sediments of different plant communities in Lake Baiyangdian wetland
Stoichiometric characteristics of carbon, nitrogen and phosphorus in surface sediments of different plant communities in Lake Baiyangdian wetland Open
白洋淀是雄安新区的核心生态功能区.为探究白洋淀不同植物群落区表层沉积物碳（C）氮（N）磷（P）化学计量特征，采集了96组表层沉积物样品开展对比分析.研究表明：白洋淀湿地表层沉积物总有机碳（TOC）含量均值为39.64 g/kg，范围为14.4~136.82 g/kg，总氮（TN）和总磷（TP）均值分别为2.62和0.75 g/kg，范围分别为0.72~10.57和0.46~1.38 g/kg；不同植物群落区表层沉积物C、N、P化学计量特征存在显著差异，挺水植物分布区表层沉积…
View article: Investment Decision Based on Entropy Theory
Investment Decision Based on Entropy Theory Open
The study of investment theory plays an extremely important role in real-life investment activities and is the theoretical basis for determining how investors invest. The traditional investment theory is mainly the portfolio theory propose…
View article: Response characteristics of water level dynamic of the Baiyangdian Wetland to climate change and human activities
Response characteristics of water level dynamic of the Baiyangdian Wetland to climate change and human activities Open
Water level dynamics of Wetlands are influenced by both climate change and human activities. Understanding the influence characteristics is important for the management of wetland water resources and ecology. Based on the water level dynam…
View article: Using heat as a tracer to quantify surface water and groundwater interactions in the Baiyangdian wetland
Using heat as a tracer to quantify surface water and groundwater interactions in the Baiyangdian wetland Open
Surface water and groundwater interactions play an important role in hydrological cycle in a wetland ecosystem. Understanding its mechanism and interaction magnitude imposes significant effects in wetland protection and management. In this…