A5103156815- Hydrology and Watershed Management Studies
- Flood Risk Assessment and Management
- Soil erosion and sediment transport
- Soil Moisture and Remote Sensing
- Climate variability and models
- Soil Carbon and Nitrogen Dynamics
- Geology and Paleoclimatology Research
- Soil and Unsaturated Flow
- Spectroscopy and Laser Applications
- Geochemistry and Elemental Analysis
- Land Use and Ecosystem Services
- Atmospheric Ozone and Climate
- Precipitation Measurement and Analysis
- Remote Sensing and LiDAR Applications
- Environmental Impact and Sustainability
- Climate change impacts on agriculture
- Remote Sensing and Land Use
- Hydrology and Drought Analysis
- Cryospheric studies and observations
- Mercury impact and mitigation studies
- Effects and risks of endocrine disrupting chemicals
- Soil Geostatistics and Mapping
- Infrared Target Detection Methodologies
- Space Satellite Systems and Control
- Water-Energy-Food Nexus Studies
National Space Science Center
2021-2024
Chinese Academy of Sciences
2009-2024
Jiaying University
2015-2024
University of Chinese Academy of Sciences
2013-2024
Griffith University
2021
Institute of Soil and Water Conservation
2001-2019
Ministry of Water Resources of the People's Republic of China
2015-2019
Meizhou City People's Hospital
2019
Wuhan Botanical Garden
2013-2015
Agriculture and Forestry University
2015
Soil erosion is an important environmental problem in the area of upper and middle Yellow River (AUMYR), China, one most severe soil areas world. It significantly influences on ecological security sustainable development region. conservation (SC) service, as regulating services provided by ecosystems, can alter water processes improve ecosystem that ensure human welfare. Investigations spatial temporal characteristics SC service play roles control protection AUMYR. In past several years,...
Habitat fragmentation is a critical contributor to biodiversity degradation and species extinction, as illustrated by the severely fragmented habitat of western black-crested gibbon (Nomascus concolor), critically endangered in Hengduan Mountains, China. An integrated simulation model, including random forest algorithm (RFA), empirical bayesian kriging regression (EBKR), least-cost path model (LCP), introduced determine ecological corridors for gibbons Mountains. In this study, we identified...
This paper aims to analyze the effects of precipitation and anthropogenic activity on hydrologic features in Yanhe River so as provide support for regional water management evaluation soil conservation measures. Thiessen Polygon was created calculate mean values watershed, Mann-Kendall statistic test Sen’s slop estimator were adapted variation trend interaction between precipitation, runoff, sediment discharge. When 1961~1970 set reference period (ignoring human effects), double mass curve...
Abstract Drought is showing an increasing trend as a result of the significant variation in precipitation and temperature China. This study investigated impacts drought on ecosystem water use efficiency (WUE) southwest The spatiotemporal distribution WUE were analysed through integrated approaches based observed climate satellite remote sensing datasets to understand response drought. Also, climatic variables gross primary productivity (GPP), evapotranspiration (ET) have been discussed. More...
The purpose of this study is to disclose the water resource risks influenced by climate extremes and human activities therefore propose a management strategy for river basins in Hengduan Mountains, Southwest China.
Nitrogen and phosphorus are major nutrients to cause eutrophication degrade the water quality of Miyun Reservoir, a very important drinking source Beijing in China. These mainly from non-point sources. The watershed County is selected as study region with total area 1400 km2. Four typical monitoring catchments two experimental units were used monitor precipitation, runoff, sediment yield pollutant loading related various land uses meantime. results show that nutrient loss amount TN TP 898.07...
中国风云三号(FY3)卫星是国际气象组织组网卫星之一,其搭载的微波成像仪(MWRI)可为气象研究、天气预报等多个领域提供有效数据。在应用MWRI数据进行多频率探测通道的协同反演时,必须考虑通过重采样来使不同探测频点的数据具有一致的空间分辨率。Backus-Gilbert(BG)方法是一种被广泛用于星载微波辐射计亮温数据重采样的方法。传统重采样方式应用BG方法计算辐射计单次旋转扫描得到的采样点的权重系数(预计算权重系数),并将其直接应用到所有旋转扫描获取的采样点上,进而完成全部数据的重采样。然而,在卫星仪器的采样过程中,地球椭球面等因素的影响会导致观测视场之间的相对位置发生改变,将预计算权重系数直接应用到全部数据会给重采样带来误差。因此,本文提出一种结合天线方向图投影定位方法的重采样方式,详细分析了MWRI数据在不同轨道位置的重采样效果。实验结果表明,本文采用的重采样方式能够在MWRI的不同的通道组合上修正传统重采样方式造成的平均1.32...
Different proxies have been used to investigate Quaternary paleoclimate change. Here, we weathering of calcium nodules in paleosols on China's Loess Plateau as a proxy for changes provide an alternative indicator these changes. Paleosol and carbonate were collected from Luochuan Lantian counties Shaanxi Province, China. We found that this approach allowed quantitative reconstruction temperature, rainfall, soil mineral composition, the effects leaching. The content loess paleosol sequences...
The purpose of this study is to determine critical environmental parameters soil K availability and quantify those contributors by using a proposed path model. In study, plot experiments were designed into different treatments, samples collected further analyzed in laboratory investigate properties influence on potassium forms (water soluble K, exchangeable non-exchangeable K). Furthermore, analysis based model was carried out evaluate the relationship between properties. Research findings...
Climate change and human activities have been an important part of studies regarding historical environmental changes in China over the past 2000 years. In this study, we focused on changes, that is, natural disasters activities, Poyang Lake Basin years, to analyze interactions between land use cover from perspective regional sustainable development. We collected records climate hydrology, floods droughts, rivers lakes area, established time sequences for lake water level amount farming...
The vertical profiles, spatiotemporal distribution, and trends of temperature humidity in the middle atmosphere are significant for numerical weather prediction analysis global climate change. To better design apply spaceborne microwave spectrometer on new generation Fengyun satellite, sensitivities spectrometers at 22.235, 50–60, 118.75, 183.31, 325.153, 380.33, 424.77, 448.0, 556.94 GHz analyzed, respectively. Qpack2 included atmospheric radiative transfer simulator is used. results show...
The purpose of this study is to determine critical environmental parameters soil K availability and quantify those contributors by using a proposed path model.In study, plot experiments were designed into different treatments, samples collected further analyzed in laboratory investigate properties influence on potassium forms (water soluble K, exchangeable non-exchangeable K).Furthermore, analysis based model was carried out evaluate the relationship between properties.Research findings...
The Scanning Microwave Radiometer (SMR) onboard the Haiyang-2B satellite (HY-2B) can provide valuable observation data for various research fields. Resampling enables consistent spatial characteristics of SMR brightness temperature (BT) from different channels, which is essential multi-channel collaborative retrieval geophysical parameters. However, as moves, relative position between fields view (FOVs) channels changes, and error resulting this factor ignored by traditional resampling...
This study focuses on two genotypes of cotton and explores different factors that were able to affect the release forms potassium (K) in rhizosphere by considering a biogeochemical process integrating plants, soils, microorganisms. The indicated both could effectively absorb exchangeable (eK) under limited (LK) supply, plants use LK sustain offspring, preferably K-deficiency conditions. It was mainly due its significantly greater active absorbing surface area root comparatively K+ maximum...
Higher spatial resolution can improve the application ability of spaceborne microwave radiometer data. To investigate capability to enhance measurements, we analyzed effect enhanced field view (FOV) and sampling strategy on improving using Backus–Gilbert (BG) method, with scanning parameters FengYun-3D (FY3D) Microwave Radiation Imager (MWRI) as an example. The results suggest that selecting appropriate FOV increasing overlap rate yield better effectively reduce brightness temperature (BT)...
THz Atmospheric Limb Sounder (TALIS) is a microwave radiometer designed by the National Space Science Center of Chinese Academy Sciences (NSSC, CAS) for measuring vertical distribution temperature and chemical constituents in middle upper atmosphere. The digital spectrometer an important part TALIS’ back end, which mainly realizes function spectral analysis. radix 16 real-time complex fast Fourier transform (FFT) algorithm used was obtained improving combining parallel processing FFT...