High mountain region of the Northern Romanian Carpathians responded sensitively to Holocene climate and land use changes: A multi-proxy analysis

The Holocene ◽  
2014 ◽  
Vol 24 (8) ◽  
pp. 944-956 ◽  
Author(s):  
Anca Geantă ◽  
Mariusz Gałka ◽  
Ioan Tanţău ◽  
Simon M Hutchinson ◽  
Marcel Mîndrescu ◽  
...  
Keyword(s):  
Land Use ◽  
Land Use Changes ◽  
Mountain Region ◽  
High Mountain ◽  
Holocene Climate ◽  
Romanian Carpathians

scholarly journals Crop Boom as a Trigger of Smallholder Livelihood and Land Use Transformations: The Case of Coffee Production in the Northern Mountain Region of Vietnam

Land ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 56 ◽  
Author(s):  
Tuyen Nghiem ◽  
Yasuyuki Kono ◽  
Stephen J. Leisz
Keyword(s):  
Land Use ◽  
Land Use Changes ◽  
Transition Process ◽  
Mountain Region ◽  
Focus Group Discussions ◽  
Group Discussions ◽  
Agricultural Transition ◽  
Local Livelihoods ◽  
Research Findings ◽  
Agrarian Transformation

Coffee is considered a boom crop in Southeast Asia. However, while it bears typical boom crop characteristics in many places where it has been grown, in other places it has contributed to agrarian transformation. This paper examines the context of coffee development in the Northwestern Mountain Region of Vietnam and describes how smallholder coffee growing has triggered an agricultural transition process, and corresponding land use changes, from subsistence-based to commercialized agriculture production. The research was conducted in a commune located in Son La province. Interviews with 46 selected households and three focus group discussions (10–15 people each) were conducted to understand changes in crop systems, corresponding land use, and labor use, due to the adoption of coffee (the boom crop). The research found that coffee has replaced swidden crops and enables a multicrop system, with less land devoted to swidden land use. The income from coffee is used to hire labor and to pay for the inputs needed to mechanize rice farming. The research findings show that the coffee boom has brought about livelihood transformation, changed land use, and transformed local livelihoods from subsistence to production for the market.

scholarly journals Risk estimation for future glacier lake outburst floods based on local land-use changes

2014 ◽  
Vol 14 (6) ◽  
pp. 1611-1624 ◽  
Author(s):  
S. Nussbaumer ◽  
Y. Schaub ◽  
C. Huggel ◽  
A. Walz
Keyword(s):  
Land Use ◽  
Land Use Planning ◽  
Driving Forces ◽  
Local Level ◽  
Land Use Changes ◽  
Management Strategies ◽  
High Mountain ◽  
Damage Potential ◽  
Outburst Floods ◽  
Lake Formation

Abstract. Effects of climate change are particularly strong in high-mountain regions. Most visibly, glaciers are shrinking at a rapid pace, and as a consequence, glacier lakes are forming or growing. At the same time the stability of mountain slopes is reduced by glacier retreat, permafrost thaw and other factors, resulting in an increasing landslide hazard which can potentially impact lakes and therewith trigger far-reaching and devastating outburst floods. To manage risks from existing or future lakes, strategies need to be developed to plan in time for adequate risk reduction measures at a local level. However, methods to assess risks from future lake outbursts are not available and need to be developed to evaluate both future hazard and future damage potential. Here a method is presented to estimate future risks related to glacier lake outbursts for a local site in southern Switzerland (Naters, Valais). To generate two hazard scenarios, glacier shrinkage and lake formation modelling was applied, combined with simple flood modelling and field work. Furthermore, a land-use model was developed to quantify and allocate land-use changes based on local-to-regional storylines and three scenarios of land-use driving forces. Results are conceptualized in a matrix of three land-use and two hazard scenarios for the year 2045, and show the distribution of risk in the community of Naters, including high and very high risk areas. The study underlines the importance of combined risk management strategies focusing on land-use planning, on vulnerability reduction, as well as on structural measures (where necessary) to effectively reduce future risks related to lake outburst floods.

Modeling the sensitivity of sediment and water runoff dynamics to Holocene climate and land use changes at the catchment scale

Geomorphology ◽  
2011 ◽  
Vol 126 (1-2) ◽  
pp. 18-31 ◽  
Author(s):  
Bastiaan Notebaert ◽  
Gert Verstraeten ◽  
Philip Ward ◽  
Hans Renssen ◽  
Anton Van Rompaey
Keyword(s):  
Land Use ◽  
Land Use Changes ◽  
Water Runoff ◽  
Holocene Climate ◽  
Catchment Scale ◽  
Runoff Dynamics

scholarly journals Disentangling the historic and future impacts of land use changes and climate variability on the hydrology of a mountain region in Brazil

2020 ◽  
pp. 125650
Author(s):  
L.C. Gomes ◽  
F.J.J.A. Bianchi ◽  
I.M. Cardoso ◽  
R.P.O. Schulte ◽  
R.B.A. Fernandes ◽  
...  
Keyword(s):  
Land Use ◽  
Climate Variability ◽  
Land Use Changes ◽  
Mountain Region

scholarly journals Riesgo de crecida por rompimiento de diques de hielo en la cuenca del plomo, Andes Centrales (33º S): perspectivas a partir de eventos históricos

2020 ◽  
Vol 46 (1) ◽  
pp. 223-249 ◽  
Author(s):  
M. Correas-Gonzalez ◽  
S.M. Moreiras ◽  
V. Jomelli ◽  
G. Arnaud-Fassetta
Keyword(s):  
Land Use ◽  
Land Use Planning ◽  
Land Use Changes ◽  
Slope Instability ◽  
High Mountain ◽  
Land Usage ◽  
Natural Processes ◽  
Proglacial Lakes ◽  
Outburst Floods ◽  
Socio Economic Impact

High mountain regions are extremely sensitive to current climate change affecting natural processes and related hazards (i.e. glacier retreat, slope instability, formation and enlargement of proglacial lakes). Ice-Dammed Lake Outburst Floods (IDLOFs) are highlighted among these phenomena and reach a greater socio-economic impact due to their highly destructive power. Facing on forecasting of more frequency and intensity of dangerous events, risk analysis of communities exposed is required. The purpose of this research was to assess the hazard, vulnerability, and risk against IDLOF in the Plomo and Mendoza valleys in current scenarios. We analyze historical IDLOF events occurred in the Plomo River that was dammed at least three times by surges of the Grande del Nevado del Plomo glacier (GNP) generating six outburst floods in the 1788 - 2018 period. Almost one century after the most catastrophic event in 1934, many changes in land usage and occupation along the Mendoza valley have occurred, exposing new vulnerable elements to natural hazards in this area. Our findings show a greater risk mainly due to higher vulnerability as a consequence of higher habitat exposition associated with increasing tourist activity and land-use changes. This fact exposes an urgent necessity of land-use planning in Andean regions.

scholarly journals Local land-use change based risk estimation for future glacier lake outburst flood

2013 ◽  
Vol 1 (4) ◽  
pp. 4349-4387
Author(s):  
S. Nussbaumer ◽  
C. Huggel ◽  
Y. Schaub ◽  
A. Walz
Keyword(s):  
Land Use ◽  
Land Use Planning ◽  
Driving Forces ◽  
Risk Estimation ◽  
Local Level ◽  
Land Use Changes ◽  
High Mountain ◽  
Damage Potential ◽  
Outburst Floods ◽  
Lake Formation

Abstract. Effects of climate change are particularly strong in high-mountain regions. Most visibly, glaciers are shrinking at a rapid pace, and as a consequence, glacier lakes are forming or growing. At the same time the stability of mountain slopes is reduced by glacier retreat, permafrost thaw and other factors, resulting in an increasing risk of landslides which can potentially impact lakes and therewith trigger far reaching and devastating outburst floods. To manage risks from existing or future lakes, strategies need to be developed to plan in time for adequate risk reduction measures at a local level. However, methods to assess risks from future lake outbursts are not available. It is actually a challenge to develop methods to evaluate both, future hazard potential and future damage potential. Here we present an analysis of future risks related to glacier lake outbursts for a local site in southern Switzerland (Naters, Valais). To estimate two hazard scenarios, we used glacier shrinkage and lake formation modelling, simple flood modelling and field work. Further we developed a land-use model to quantify and allocate land-use changes based on local-to-regional storylines and three scenarios of land-use driving forces. Results are conceptualized in a matrix of three land-use and two hazard scenarios for a time period of 2045, and show the distribution of risk in the community of Naters, including high and very high risk areas. The study corroborates the importance of land-use planning to effectively reduce future risks related to lake outburst floods.

Analisis Perubahan Tata Guna Lahan di Kabupaten Bantul Menggunakan Metode Global Moran’s I

2017 ◽  
Vol 8 (4) ◽  
Author(s):  
Matheus Supriyanto Rumetna ◽  
Eko Sediyono ◽  
Kristoko Dwi Hartomo
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Spatial Autocorrelation ◽  
Land Use Changes ◽  
Geographical Information ◽  
Moran’S I ◽  
Complete Spatial Randomness ◽  
Moran's I ◽  
Global Moran’S I ◽  
Spatial Randomness

Abstract. Bantul Regency is a part of Yogyakarta Special Province Province which experienced land use changes. This research aims to assess the changes of shape and level of land use, to analyze the pattern of land use changes, and to find the appropriateness of RTRW land use in Bantul District in 2011-2015. Analytical methods are employed including Geoprocessing techniques and analysis of patterns of distribution of land use changes with Spatial Autocorrelation (Global Moran's I). The results of this study of land use in 2011, there are thirty one classifications, while in 2015 there are thirty four classifications. The pattern of distribution of land use change shows that land use change in 2011-2015 has a Complete Spatial Randomness pattern. Land use suitability with the direction of area function at RTRW is 24030,406 Ha (46,995406%) and incompatibility of 27103,115 Ha or equal to 53,004593% of the total area of Bantul Regency.Keywords: Geographical Information System, Land Use, Geoprocessing, Global Moran's I, Bantul Regency. Abstrak. Analisis Perubahan Tata Guna Lahan di Kabupaten Bantul Menggunakan Metode Global Moran’s I. Kabupaten Bantul merupakan bagian dari Provinsi Daerah Istimewa Yogyakarta yang mengalami perubahan tata guna lahan. Penelitian ini bertujuan untuk mengkaji perubahan bentuk dan luas penggunaan lahan, menganalisis pola sebaran perubahan tata guna lahan, serta kesesuaian tata guna lahan terhadap RTRW yang terjadi di Kabupaten Bantul pada tahun 2011-2015. Metode analisis yang digunakan antara lain teknik Geoprocessing serta analisis pola sebaran perubahan tata guna lahan dengan Spatial Autocorrelation (Global Moran’s I). Hasil dari penelitian ini adalah penggunaan tanah pada tahun 2011, terdapat tiga puluh satu klasifikasi, sedangkan pada tahun 2015 terdapat tiga puluh empat klasifikasi. Pola sebaran perubahan tata guna lahan menunjukkan bahwa perubahan tata guna lahan tahun 2011-2015 memiliki pola Complete Spatial Randomness. Kesesuaian tata guna lahan dengan arahan fungsi kawasan pada RTRW adalah seluas 24030,406 Ha atau mencapai 46,995406 % dan ketidaksesuaian seluas 27103,115 Ha atau sebesar 53,004593 % dari total luas wilayah Kabupaten Bantul. Kata Kunci: Sistem Informasi Georafis, tata guna lahan, Geoprocessing, Global Moran’s I, Kabupaten Bantul.

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