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Remote Sensing of Ecosystem Structure and Function Dynamics Due to Climate Change and Human Activities

A special issue of Remote Sensing (ISSN 2072-4292). This special issue belongs to the section "Ecological Remote Sensing".

Deadline for manuscript submissions: 30 June 2024 | Viewed by 2206

Special Issue Editors

Dr. Jun Zhai

E-Mail Website
Guest Editor
Satellite Application Center for Ecology and Environment, Ministry of Ecology and Environment of the People's Republic of China, Beijing 100094, China
Interests: ecosystem assessment and management; land use and cover change; geographic information system; satellite image analysis
Dr. Yuanwei Qin

grade E-Mail Website
Guest Editor
Department of Microbiology and Plant Biology, University of Oklahoma, Norman, OK 73019, USA
Interests: forest resources and ecosystem; forest carbon; agriculture; environmental remote sensing
Special Issues, Collections and Topics in MDPI journals
Dr. Wei Cao

E-Mail Website
Guest Editor
Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
Interests: ecosystem services; geographic information system; ecosystem monitoring

Special Issue Information

Dear Colleagues,

The natural environment is being shaped and transformed by climate change and human activities, causing consequential alterations in ecosystem structure and function. These changes exhibit significant temporal and spatial variations in terms of their processes, rates, and extents. It is imperative to establish quantitative assessment indicators and technical methodologies to accurately characterize and comprehend the patterns and dynamics of ecological changes. This scientific foundation serves as a guide for making informed decisions concerning ecological protection, restoration, and management. The present era witnesses the emergence of multi-platform remote sensing technology, encompassing active and passive sensors integrated into satellites, unmanned aerial vehicles (UAVs), observation towers, and ground-based mobile devices. This technology has attained the capability to rapidly and accurately acquire key parameters pertaining to ecosystem structure and processes across continuous spatiotemporal scales. Consequently, it offers abundant data sources and diverse technical approaches for monitoring and assessing ecological status changes at various scales. This Special Issue is intended to provide a platform for academic exchange regarding progress in assessing ecosystem structure and function changes due to climate change and human activities, utilizing remote sensing technology. Specifically, studies including, but not limited to, the following topics are welcome:

  • Ecological remote sensing assessment models and methods;
  • The inversion of key parameters of multi-scale ecosystem structure and processes through remote sensing;
  • The application of remote sensing technology in comprehensive assessment of ecosystem patterns, quality, and functions;
  • Ecological space remote sensing monitoring and assessment;
  • Ecological protection, restoration, and management;
  • The impacts of climate change on ecosystems.

Dr. Jun Zhai
Dr. Yuanwei Qin
Dr. Wei Cao
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Remote Sensing is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • ecosystem structure
  • ecosystem function
  • ecological protection
  • biodiversity
  • nature reserves
  • carbon sequestration
  • climate change

Published Papers (2 papers)

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Research

20 pages, 5201 KiB  
Article
Impacts of Extreme Precipitation and Diurnal Temperature Events on Grassland Productivity at Different Elevations on the Plateau
by Hexuan An, Jun Zhai, Xiaoyan Song, Gang Wang, Yu Zhong, Ke Zhang and Wenyi Sun
Remote Sens. 2024, 16(2), 317; https://0-doi-org.brum.beds.ac.uk/10.3390/rs16020317 - 12 Jan 2024
Viewed by 677
Abstract
The impact of extreme climate events on vegetation growth and ecosystem function has garnered widespread attention, particularly in plateau regions, which are facing increasingly severe environmental pressures. This study employs the Events Coincidence Analysis (ECA) method to examine the impacts of extreme climate [...] Read more.
The impact of extreme climate events on vegetation growth and ecosystem function has garnered widespread attention, particularly in plateau regions, which are facing increasingly severe environmental pressures. This study employs the Events Coincidence Analysis (ECA) method to examine the impacts of extreme climate events on the Net Primary Productivity (NPP) of vegetation in plateau regions. Specifically, we focus on the unique phenomenon of asymmetric daytime and nighttime warming and evaluate the compounding effect of extreme precipitation with extreme temperature events. The results indicate that grassland NPP has higher overall sensitivity and Coincidence Rates (CR) to extreme precipitation events compared to extreme temperature events. Specifically, extreme drought events significantly negatively impact grassland NPP, and the sensitivity of NPP increases with the severity of extreme drought events. In lower elevations (<3200 m), grassland NPP shows a strong response to extreme precipitation events, with sensitivity decreasing with increasing elevation, especially for alpine meadows. Extreme high-temperature events contributed significantly to NPP in mid to high elevations (3000–5000 m). Compound extreme climate events amplify the average coincidence degree with NPP anomalies, with extreme precipitation events playing a major role in compound effects. The CR of compound climate events can reach above 0.6, reflected in the anomaly increase of NPP in temperate grasslands at higher elevations caused by compound events of extremely wet and extremely high temperatures. Full article
(This article belongs to the Special Issue Remote Sensing of Ecosystem Structure and Function Dynamics Due to Climate Change and Human Activities)
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22 pages, 5247 KiB  
Article
Synergistic Application of Multiple Machine Learning Algorithms and Hyperparameter Optimization Strategies for Net Ecosystem Productivity Prediction in Southeast Asia
by Chaoqing Huang, Bin Chen, Chuanzhun Sun, Yuan Wang, Junye Zhang, Huan Yang, Shengbiao Wu, Peiyue Tu, MinhThu Nguyen, Song Hong and Chao He
Remote Sens. 2024, 16(1), 17; https://0-doi-org.brum.beds.ac.uk/10.3390/rs16010017 - 20 Dec 2023
Viewed by 817
Abstract
The spatiotemporal patterns and shifts of net ecosystem productivity (NEP) play a pivotal role in ecological conservation and addressing climate change. For example, by quantifying the NEP information within ecosystems, we can achieve the protection and restoration of natural ecological balance. Monitoring the [...] Read more.
The spatiotemporal patterns and shifts of net ecosystem productivity (NEP) play a pivotal role in ecological conservation and addressing climate change. For example, by quantifying the NEP information within ecosystems, we can achieve the protection and restoration of natural ecological balance. Monitoring the changes in NEP enables a more profound understanding and prediction of ecosystem alterations caused by global warming, thereby providing a scientific basis for formulating policies aimed at mitigating and adapting to climate change. The accurate prediction of NEP sheds light on the ecosystem’s response to climatic variations and aids in formulating targeted carbon sequestration policies. While traditional ecological process models provide a comprehensive approach to predicting NEP, they often require extensive experimental and empirical data, increasing research costs. In contrast, machine-learning models offer a cost-effective alternative for NEP prediction; however, the delicate balance in algorithm selection and hyperparameter tuning is frequently overlooked. In our quest for the optimal prediction model, we examined a combination of four mainstream machine-learning algorithms with four hyperparameter-optimization techniques. Our analysis identified that the backpropagation neural network combined with Bayesian optimization yielded the best performance, with an R2 of 0.68 and an MSE of 1.43. Additionally, deep-learning models showcased promising potential in NEP prediction. Selecting appropriate algorithms and executing precise hyperparameter-optimization strategies are crucial for enhancing the accuracy of NEP predictions. This approach not only improves model performance but also provides us with new tools for a deeper understanding of and response to ecosystem changes induced by climate change. Full article
(This article belongs to the Special Issue Remote Sensing of Ecosystem Structure and Function Dynamics Due to Climate Change and Human Activities)
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