Land use change in the Vietnamese Mekong Delta: New evidence from remote sensing

Vu, Hoang Thai Duong; Tran, Dung Duc; Schenk, Andreas; Nguyen, Canh Phuc; Vu, Huu Long; Oberle, Peter; Trinh, Van Cong; Nestmann, Franz

doi:10.1016/j.scitotenv.2021.151918

Cited by 30 publications

(27 citation statements)

References 53 publications

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“…Tables 1 and 2 show the values of total rice planted area and total aquaculture area between statistical data and MODIS products in the VMD from 2000 to 2020. In general, a good agreement between statisital data and the MODIS-derived estimation areas can be reached with a correlation R 2 > 0.96 over the whole VMD [1] . However, in some cases the MODIS data shows large differences in comparison with statistical data, e.g.…”

Section: Data Descriptionmentioning

confidence: 71%

“… [4] due to the mixed-pixel effect of the MODIS sensor with the moderate resolution of 500 m. Excluding the mixed-pixel effect in the MODIS-derived estimates could give good agreement between the obtained spatial patterns of the multiple rice cropping systems and regional land use data [4] . On the other hand, the statistical data books do not have spatial information on land use and land cover, therefore the MODIS-derived land use data contributes to a much better understanding of the spatial distribution of farming systems and annually change of land use patterns in the VMD [1] .…”

Section: Data Descriptionmentioning

confidence: 99%

“…The flooding maps contain three main classes with water (blue), mixed pixel (green), and non-flooded areas (white). Here, the maximum flooding extension is determined as the date with the largest flooding extent in the VMD, which occurs annually between October 8th and November 9th [1] .…”

Section: Data Descriptionmentioning

confidence: 99%

“… [3 , 4] . The MODIS products show a high validation with statistical data and radar satellites [1] . The datasets of flood map and land use, therefore, are available to scientists, engineers, and policy-makers in agricultural management associated with flood management in the VMD.…”

mentioning

confidence: 92%

“… This paper compiles the data associated with a research article published in STOTEN [1] . The data set represents figures, tables, and images illustrating the temporal and spatial distribution of land use and flood dynamics from 2000 to 2020 in the Vietnamese Mekong Delta (VMD).…”

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confidence: 99%

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Datasets of land use change and flood dynamics in the vietnamese mekong delta

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Section: Data Descriptionmentioning

confidence: 71%

Section: Data Descriptionmentioning

confidence: 99%

Section: Data Descriptionmentioning

confidence: 99%

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confidence: 92%

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confidence: 99%

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Datasets of land use change and flood dynamics in the vietnamese mekong delta

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et al. 2022

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Agricultural expansion and forest retreat in Mainland Southeast Asia since the late 1980s

Xiao,

Li,

Feng

2023

Land Degrad Dev

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Agrarian expansion and intensification in the tropical agricultural‐forest frontiers (TAFF) are continuously encroaching on forests, yet the magnitudes and processes of agricultural‐forest advances and retreats remain lacking investigation systematically and quantitatively. With over three‐decade (1987–2018) of land‐cover products, here, we revealed the spatiotemporal dynamic processes of agricultural advance and forest retreat and then quantified forest loss (FL) due to cropland and plantation expansion (PE) in Mainland Southeast Asia (MSEA). First, the agricultural expansion and FL peaked in the late 1990s to early 2000s and decelerated afterward in MSEA. Meanwhile, the continuous decline in deforestation rates was accompanied by a decline in the patches of forest fragments, while cropland and plantations first decreased and then increased. Second, 85% of cropland expansion (CE) occurred in forest frontiers of Myanmar (37%) and Thailand (32%) in particular, compared with 72% of PE in plantation‐forest frontiers, for example, 24% in Thailand and 22% in Cambodia. Third, 51% and 37% of the forests that declined were converted into cropland and plantations, respectively, with obvious national variations. In the least developed countries, such as Myanmar and Cambodia, CE dominated (65%), while the proportion of PE in Thailand and Vietnam was up to 56%. Finally, over 10% of the advances and retreats (re‐)occurred in various protected areas, with the expansion ratio of cropland and plantations nearly 1:2, particularly the Cambodia‐Thailand border. We thus appeal for more effective efforts from governments, the scientific community, and international initiatives (e.g., the UN‐REDD and Sustainable Development Goals) to further study and solve the issues of forest retreat and agricultural advance across the entire TAFF. Our new findings and insights about agricultural‐forest advances and retreats in their frontiers can enrich existing pan‐regional research of forest conversion or FL and agricultural expansion and provide an encouraging basis for action to reduce environmental degradation in tropical forests, including protected areas.

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Progress toward resilient and sustainable water management in the Vietnamese Mekong Delta

Trí

Yarina²,

Nguyen

et al. 2023

WIREs Water

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Sinking and shrinking, the Vietnamese Mekong Delta is a materialization of dynamic river flows, sediment flows, and coastline processes. Past policy aspirations and extensive water infrastructures have shaped the delta into one the most significant food producing landscapes in Southeast Asia. Yet, these changes have also created new environmental risks by transforming the hydrological system. Research has produced a growing and increasingly diverse empirical literature on the delta's environmental context, without necessarily providing water resource managers, policymakers and practitioners with the information needed to galvanize more resilient development. This focus review presents a detailed overview of the recent scientific findings, exploring how the management of water resources is changing, as well as their inter‐relationship with land use, policy, socio‐economic transitions, and global environmental crises. Compound and systemic risks to the delta include climate change, hydrometeorological hazards, upstream developments and an unsustainable development trajectory. We outline scientific knowledge gaps, as well as the pressing need for sharable analysis‐ready data and innovations. Finally, we provide recommended future research avenues for multiscale actions toward a sustainable and resilient delta future.This article is categorized under: Human Water > Water Governance Science of Water > Water Extremes Science of Water > Water and Environmental Change

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Land use change in the Vietnamese Mekong Delta: New evidence from remote sensing

Cited by 30 publications

References 53 publications

Datasets of land use change and flood dynamics in the vietnamese mekong delta

Datasets of land use change and flood dynamics in the vietnamese mekong delta

Agricultural expansion and forest retreat in Mainland Southeast Asia since the late 1980s

Progress toward resilient and sustainable water management in the Vietnamese Mekong Delta

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