Assessment of Forest Ecosystem Variations in the Lancang–Mekong Region by Remote Sensing from 2010 to 2020

Zhao, Jing; Li, Jing; Liu, Qinhuo; Dong, Yadong; Li, Li; Zhang, Hu

doi:10.3390/s23229038

Sensors

2023

DOI: 10.3390/s23229038

|View full text |Cite

Assessment of Forest Ecosystem Variations in the Lancang–Mekong Region by Remote Sensing from 2010 to 2020

Jing Zhao,

Jing Li,

Qinhuo Liu

et al.

Abstract: Five countries in the Lancang–Mekong region, including Myanmar, Laos, Thailand, Cambodia, and Vietnam, are facing the threat of deforestation, despite having a high level of forest coverage. Quantitatively assessing the forest ecosystem status and its variations based on remote sensing products for vegetation parameters is a crucial prerequisite for the ongoing phase of our future project. In this study, we analyzed forest health in the year 2020 using four vegetation indicators: forest coverage index (FCI), l… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Article3

Relationship

Self Cite0

Independent3

Authors

Journals

Cited by 3 publications

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Spatiotemporal evolution of ecosystem health and its driving factors in the southwestern karst regions of China

Ouyang,

Rui,

Zhang

et al. 2024

Ecological Indicators

View full text Add to dashboard Cite

Spatiotemporal evolution of ecosystem health and its driving factors in the southwestern karst regions of China

Ouyang,

Rui,

Zhang

et al. 2024

Ecological Indicators

View full text Add to dashboard Cite

Detection of spatial and temporal variation characteristics of vegetation cover in the Lower Mekong region and the influencing factors

Gao,

Pan,

Gong

2024

Sci Rep

View full text Add to dashboard Cite

As the main component of terrestrial ecosystem, vegetation plays a very important role in regional ecosystem environmental change, global carbon cycle and climate regulation. The Lower Mekong region (LMR) is at the core of Southeast Asia, its vegetation changes will affect the regional ecosystem and climate. Five countries of LMR were selected as the study area, based on MODIS (Moderate-Resolution Imaging Spectroradiometer) NDVI(Normal Difference Vegetation Index) data from 2000 to 2022, using the Sen’s slope estimator, Mann–Kendall trend test and geographic detector to study the spatial and temporal variation trends and driving forces of vegetation coverage. The results showed that:(1) From 2000 to 2022,the vegetation coverage in the LMR showed an overall fluctuating upward trend, the annual average Fractional Vegetation Cover(FVC) value was 0.70, mainly with high vegetation coverage and relatively high vegetation coverage. Vegetation distribution had obviously spatial heterogeneity, and the vegetation of Myanmar, Laos and Vietnam was significantly larger than Thailand and Cambodia.(2) The variation trend analysis of Sen_MK showed that the proportion of improved and degraded vegetation coverage areas in the LMR were 56.33% and 37.55% respectively. The vegetation improvement area was much larger than the vegetation degradation area during 2000–2022. According to the variation trend analysis of different countries, the vegetation coverage improvement area in Vietnam, Myanmar and Thailand were larger than the degraded , the overall vegetation coverage variation trend were good. However, in Laos and Cambodia, the degraded areas were larger than the improved, the overall variation trends of coverage were not good.(3) The results of geographic detector showed that the Land Use and Land Cover(LULC) had the greatest influence on vegetation coverage in the study area.The influencing factors of vegetation coverage were different in the LMR. For Vietnam, Thailand and Laos,elevation and slope factors were second only to LULC, for Myanmar and Cambodia, the influence of precipitation factor was second only to LULC. The results provide scientific data support for understanding the ecological environment status and future changes in the research area.

show abstract

Assessment of Flood Disaster Risk in the Lancang–Mekong Region

Sun,

Song,

Han

et al. 2024

Water

View full text Add to dashboard Cite

The Lancang–Mekong Region encompasses six countries, covering an area exceeding five million square kilometers and containing a population of more than 400 million. Floods in this region may cause extremely serious losses of lives and property. However, due to the severe shortage of flood disaster data, loss data and meteorological monitoring data, the assessment of flood disaster risks in this region remains highly formidable. In view of this, we systematically integrated the flood disaster data from EM-DAT (the Emergency Events Database), Desinventar (a disaster information management system), Reliefweb (a humanitarian information service provided by the United Nations Office for the Coordination of Humanitarian Affairs), and ADRC (the Asian Disaster Reduction Center), coupled with GLDAS (Global Land Data Assimilation System) precipitation data and the population and economic data from the World Bank, and comprehensively considered vulnerability, exposure, and loss criteria to assess the flood disaster risks in the Lancang–Mekong Region. The research findings are as follows: (1) From 1965 to 2017, a total of 370 floods occurred in the Lancang–Mekong Region, among which the proportion of floods in Vietnam and Thailand combined was as high as 43.7%. In contrast, the number of floods in Qinghai and Tibet in China was relatively small, with a combined proportion of only 1.89%. (2) When mild flood disasters occur, the southern part of Myanmar, the western part of Thailand, and the northeastern part of Vietnam are faced with relatively large loss threats; when moderate flood disasters occur, the central part of Myanmar, the eastern part of Cambodia, and the southern part of Vietnam are faced with comparatively large loss threats; when severe flood disasters occur, high-loss areas are mainly concentrated in the southern part of Vietnam. (3) Considering exposure, vulnerability, and hazards comprehensively, the high-risk areas of floods in the Lancang–Mekong Region are mainly distributed in the central–southern part of Myanmar, the northeastern part of Vietnam, and the southern part of the area bordering Cambodia and Vietnam; the medium-risk areas are mainly distributed in the central part of Thailand and the eastern part of Sichuan in China; relatively speaking, other areas in the Lancang–Mekong Region have a lower flood risk level. This research can provide references for flood risk assessment in regions with scarce data and technical support for flood disaster prevention and control as well as risk management in the Lancang–Mekong Region.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Assessment of Forest Ecosystem Variations in the Lancang–Mekong Region by Remote Sensing from 2010 to 2020

Cited by 3 publications

References 37 publications

Spatiotemporal evolution of ecosystem health and its driving factors in the southwestern karst regions of China

Spatiotemporal evolution of ecosystem health and its driving factors in the southwestern karst regions of China

Detection of spatial and temporal variation characteristics of vegetation cover in the Lower Mekong region and the influencing factors

Assessment of Flood Disaster Risk in the Lancang–Mekong Region

Contact Info

Product

Resources

About