Chengxiu Li

Chengxiu Li
University of Southampton · Department of Geography and Environment

PhD

About

13
Publications
2,900
Reads
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78
Citations
Citations since 2016
13 Research Items
78 Citations
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20162017201820192020202120220102030
20162017201820192020202120220102030
20162017201820192020202120220102030
Introduction
EO for tackling food and water security challenges. Crop yield forecasting using crop growth model, EO data and data assimilation Flood mapping using Optical and Radar dataset Agriculture land use mapping using mechine learning
Additional affiliations
October 2014 - present
University of Zurich
Position
  • PhD Student
September 2011 - July 2014
Lanzhou University
Position
  • Master's Student
July 2010 - July 2011
Afflicated high middle school, Inner Monogolia Normal university
Position
  • Geography Teacher
Description
  • High middle school teacher

Publications

Publications (13)
Article
Full-text available
Abstract Background Floods are the most frequently occurring natural disaster and constitute a significant public health risk. Several operational satellite-based flood detection systems quantify flooding extent, but it is unclear how far the choice of satellite-based flood product affects the findings of epidemiological studies of associated publi...
Article
Full-text available
Flooding is the most frequent natural hazard globally, but evidence of its impact on domestic water point contamination remains limited. This study aimed to assess dam-related flooding’s impact on microbiological contamination of rural water points and to evaluate agreement of satellite-derived flood maps with ground-based observations of water poi...
Article
Full-text available
Satellite data provide high potential for estimating crop yield, which is crucial to understanding determinants of yield gaps and therefore improving food production, particularly in sub-Saharan Africa (SSA) regions. However, accurate assessment of crop yield and its spatial variation is challenging in SSA because of small field sizes, widespread i...
Article
Full-text available
Accurate information on flood extent and exposure is critical for disaster management in data-scarce, vulnerable regions, such as Sub-Saharan Africa (SSA). However, uncertainties in flood extent affect flood exposure estimates. This study developed a framework to examine the spatiotemporal pattern of floods and to assess flood exposure through util...
Preprint
Full-text available
Accurate information on flood extent and exposure is critical for disaster management in data-scarce, vulnerable regions, such as Sub-Saharan Africa (SSA). However, uncertainties in flood extent affect flood exposure estimates. This study developed a framework to examine the spatiotemporal pattern of floods and to assess flood exposure through util...
Article
Full-text available
In sub-Saharan Africa, land cover change, expansion of hydropower infrastructure, and increased flooding complicate country-level efforts to meet the Sustainable Development Goal target concerning access to safe water. The Water, Energy and Food (WEF) nexus approach recognises that addressing these complex challenges requires cross-sectoral analyse...
Article
Full-text available
Cropland expansion is a common strategy for boosting agricultural production in sub-Saharan Africa (SSA) even though it often leads to economic, environmental, and social trade-offs. Ensuring sustainable cropland use and their management is critical for improving food security and preserving ecosystem services. To develop policies and approaches th...
Article
Full-text available
Cropland expansion is a common strategy for boosting agricultural production in sub-Saharan Africa (SSA) even though it often leads to economic, environmental, and social trade-offs. Ensuring sustainable cropland use and their management is critical for improving food security and preserving ecosystem services. To develop policies and approaches th...
Article
Full-text available
Arid grassland ecosystems undergo degradation because of increasing environmental and human pressures. Degraded grasslands show vegetation cover reduction and soil-patch development, leading to grassland fragmentation and changes in spatial heterogeneity. Understanding grassland degradation that involves soil-patch development remains a challenge o...
Article
An improved understanding of increased human influence on ecosystems is needed for predicting ecosystem processes and sustainable ecosystem management. We studied spatial variation of human influence on grassland ecosystems at two scales across the Qinghai-Tibetan Plateau (QTP), where increased human activities may have led to ecosystem degradation...
Article
Mapping plants traits on the Qinghai-Tibetan Plateau grassland is important for understanding ecosystem functions and how plants respond to global change. Detailed trait maps for the complete Qinghai-Tibetan Plateau are missing. Here, we addressed this issue by combining Sentinel-2 and Landsat-8 multispectral satellite data with field measurements...

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Cited By

Projects

Projects (3)
Project
Analyze canopy traits variation over space and time at different scale Understand how this change correlated to the ecosystem function degradation in the Qinghai-Tibetan Plateau
Project
Retrieval the canopy traits using field measurements and Landsat-8 and Sentinel-2 data Characterizing the vegetation types using the canopy traits