Analysis of village accessibility and its impact on land use dynamics in a mountainous province of northern Vietnam

Castella, Jean-Christophe; Manh, Pham Hung; Kam, Suan Pheng; Villano, L.; Tronche, Nathalie Rachel

doi:10.1016/j.apgeog.2005.07.003

Cited by 67 publications

(50 citation statements)

References 7 publications

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“…Prior to this time, the major stability concerns with mountain roads focused on road closure, repair costs, and the maintenance needed to retain access (e.g., Bansal and Mathur, 1976;Chassie and Goughnour, 1976;Fleming and Taylor, 1980). Little emphasis has been placed on the impacts of landslides on environmental health and human welfare in developing countries of Asia where secondary mountain road systems are expanding at a rapid pace (Haigh, 1984;Sakakibara et al, 2004;Castella et al, 2005). Within China, the total road length of rural transportation networks increased by 5.5-fold during the 30-year period from 1978 through the end of 2007 (China Road Construction Report, 2008).…”

Section: R C Sidle Et Al: Epic Landslide Erosion From Mountain Roamentioning

confidence: 99%

Epic landslide erosion from mountain roads in Yunnan, China – challenges for sustainable development

Sidle

Ghestem²,

Stokes

2014

Nat. Hazards Earth Syst. Sci.

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Abstract. Expanding systems of mountain roads in developing countries have significantly increased the risk of landslides and sedimentation, and have created vulnerabilities for residents and aquatic resources. We measured landslide erosion along seven road segments in steep terrain in the upper Salween River basin, Yunnan, China and estimated sediment delivery to channels. Landslide erosion rates along the roads ranged from 2780 to 48 235 Mg ha −1 yr −1 , the upper end of this range being the highest rate ever reported along mountain roads. The two roads with the highest landslide erosion (FG1 = 12 966 Mg ha −1 yr −1 ; DXD = 48 235 Mg ha −1 yr −1 ) had some of the highest sediment delivery rates to channels (about 80 and 86 %, respectively). Overall, 3 times more landslides occurred along cut slopes compared to fill slopes, but fill slope failures had a combined mass > 1.3 times that of cut slope failures. Many small landslides occurred along road cuts, but these were often trapped on the road surface. Given the magnitude of the landslide problem and the lack of attention to this issue, a more sustainable approach for mountain road development is outlined based on an analysis of landslide susceptibility and how thresholds for landslide trigger mechanisms would be modified by road location and different construction techniques.

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Section: R C Sidle Et Al: Epic Landslide Erosion From Mountain Roamentioning

confidence: 99%

Epic landslide erosion from mountain roads in Yunnan, China – challenges for sustainable development

Sidle

Ghestem²,

Stokes

2014

Nat. Hazards Earth Syst. Sci.

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“…A move from swidden farming to fixed crops has been encouraged by the granting of long-term land-use rights to households as well as the introduction of high-yield hybrid rice and maize seeds since 1999 [26]. A transition from subsistence crops to cash crops in some regions has also been driven by the expansion of the market economy [2,52]. In addition, since 2000, new exogenous factors such as increasing weather extremes, and the 2008 food price crisis have further impacted livelihoods in these communities.…”

Section: Context: Vietnam's Northern Uplandsmentioning

confidence: 99%

“…LULCC studies in upland Vietnam have started to analyze such transformations since the country's independence in 1954 [1,2,61,62,[64][65][66]. However, all these studies have been conducted elsewhere in the country, either in the Central Highlands or in northern provinces at lower altitudes and more closely connected to the capital, Hanoi, than the borderlands.…”

Section: Context: Vietnam's Northern Uplandsmentioning

confidence: 99%

“…Dwelling on the physical, economic, and often cultural fringes of their respective states and predominantly undertaking semi-subsistence rural agriculture, residents of these frontiers face numerous land-use and livelihood challenges. While studies of the causal mechanisms of land-use and land-cover change (LULCC) in the Southeast Asian Massif are growing [1][2][3][4][5], there remains an urgent need to refine our understandings of how and why potential factors-be they socio-economic, political, or ecological-underpin land-use changes in these uplands. Not only do we need to better comprehend how specific land policies and market-led changes, for instance, drive LULCC, but also how depleted soil nutrients, population growth, or household agricultural knowledge can trigger land-use change [6].…”

Section: Introductionmentioning

confidence: 99%

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“Nothing Is Like It Was Before”: The Dynamics between Land-Use and Land-Cover, and Livelihood Strategies in the Northern Vietnam Borderlands

Turner

Pham

2015

Land

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Land uses are changing rapidly in Vietnam's upland northern borderlands. Regional development platforms such as the Greater Mekong Subregion, state-propelled market integration and reforestation programs, and lowland entrepreneurs and migrants are all impacting this frontier landscape. Drawing on a mixed methods approach using remote sensing data from 2000 to 2009 and ethnographic fieldwork, we examine how land-use and land-cover change (LULCC) has occurred across three borderland provinces-Lai Châu, Lào Cai and Hà Giang-with high proportions of ethnic minority semi-subsistence farmers. After a broad examination of regional land-use changes, we select three case studies to further analyze the underlying relationships between specific LULCC and local livelihood diversification strategies. These include specific patterns of urban growth due to a range of political decisions in Lai Châu and Lào Cai Provinces; reforestation due to nontimber forest (NTFP) product cultivation in the west of Lào Cai Province; and a stable landscape that restricts government attempts at refashioning upland livelihoods in the east of Hà Giang. Our findings point to the difficulties of completing LULCC maps for this highly heterogeneous region and the complexity of LULCC and livelihood interactions and relationships examined on the ground. OPEN ACCESSLand 2015, 4 1031

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“…The relationship between the accessibility and land use is widely recognized in planning for both urban and rural environments [14][15][16][17][18][19]. Other social economic factors are also tied with the accessibility, such as poverty, health, and production patterns [20].…”

Section: Related Researchmentioning

confidence: 99%

Investigating Intercity Rail Transit Scope with Social Economy Accessibility: Case Study of the Pearl River Delta Region in China

Cao

Wei

2017

Urban Rail Transit

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In response to challenges caused by high gasoline prices, traffic congestion, and greenhouse gas emissions, smart internment on intercity rail transit infrastructures and service suggests a rekindling of many countries' interest in offering a range of benefits over automobile travels. In order to check the suitability of the proposed intercity rail transit system with the local conditions in a region, models for relating the intercity rail transit scope and social economy factors have been developed with the datasets obtained in the Pearl River Delta (PRD) region in Guangdong Province, China. In this paper, the accessibility-based approach is presented to explore the impact of the intercity rail transit system planning on the regional development. The impact of three typical accessibility variables, transportation, population, and economic accessibilities, are considered in the approach. The global rail transit scope planning models are developed by using the regression technique to correlate the lengths of 254 regional intercity rail transit systems in different countries in the world with social economy factors. Those models are used for estimating the intercity rail transit size for the PRD region. The modeled transit scopes are examined with spatial distributions of the defined three accessibilities at each node (or centroid center of a town) in a Geographic Information System environment. The developed method has been proven helpful to understanding the gap between transport supply and potential travel demand and the suitability of each node to alignment of each rail transit route through the PRD region case study.

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Analysis of village accessibility and its impact on land use dynamics in a mountainous province of northern Vietnam

Cited by 67 publications

References 7 publications

Epic landslide erosion from mountain roads in Yunnan, China – challenges for sustainable development

Epic landslide erosion from mountain roads in Yunnan, China – challenges for sustainable development

“Nothing Is Like It Was Before”: The Dynamics between Land-Use and Land-Cover, and Livelihood Strategies in the Northern Vietnam Borderlands

Investigating Intercity Rail Transit Scope with Social Economy Accessibility: Case Study of the Pearl River Delta Region in China

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