scholarly journals Anthropic Processes and Land-Use Change During 33 Years in Roraima, Northern Amazonia

2018 ◽  
Vol 10 (7) ◽  
pp. 426 ◽  
Author(s):  
Marcelle A. Urquiza ◽  
Valdinar F. Melo ◽  
Márcio R. Francelino ◽  
Carlos E. G. R. Schaefer ◽  
Eliana De Souza ◽  
...  
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Human Impacts ◽  
Agricultural Practices ◽  
Forest Loss ◽  
Land Use Patterns ◽  
Use Patterns ◽  
Agricultural Colonization ◽  
Forest Resilience ◽  
Family Based

The Amazon region has experienced a rapid rate of deforestation and land use change as a result of establishment of agricultural settlements, resulting from public policies designed to promote rural development. We analyzed land use patterns and changes in the central region of Roraima, northern Brazil, testing the hypothesis that the anthropic pressure based on the conversion of natural vegetation (forest ecotone zone and open areas of savanna and campinaranas) on agriculture and pasture, has led to the decline of forest resilience, and has not promoted development in lands converted in agricultural colonization projects, a process exacerbated by practices of burning. Satellite images from between 1984 to 2017, with field-collected data and geoprocessing techniques, allowed interpretation and analysis of seven land-use classes. Agriculturally-based human impacts were greatest in forest areas, with forest loss rates being 6.4 times greater than regeneration rates. The 39.3% reduction in natural non-forest vegetation types exceeded that of forest loss (23.8%). Repeated fires resulted in a 627.1% increase in forest fragmentation in areas heavily impacted by fire. Our study revealed that, over 33 years, deforestation and transitions of land to non-conservation uses did not lead to a system with highly productive agricultural practices, but to extensive impoverished, and degraded subsistence. The main reason was the basic unsuitability of the region´s extremely acidic/dystrophic soils on which settlements have been founded, and the predominance of low-tech, family-based, agriculture and the absence of the required technology for attaining better results.

scholarly journals Current and Future Land Use Characters of a National Central City in Eco-Fragile Region—A Case Study in Xi’an City Based on FLUS Model

Land ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 286
Author(s):  
Dingrao Feng ◽  
Wenkai Bao ◽  
Meichen Fu ◽  
Min Zhang ◽  
Yiyu Sun
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Urban Development ◽  
Urban Expansion ◽  
Land Use Patterns ◽  
Use Patterns ◽  
Pattern Change ◽  
Land Use Dynamics ◽  
The Future ◽  
Xi’An City

Land use change plays a key role in terrestrial systems and drives the process of ecological pattern change. It is important to investigate the process of land use change, predict land use patterns, and reveal the characteristics of land use dynamics. In this study, we adopted the Markov model and future land use (FLUS) model to predict the future land use conditions in Xi’an city. Furthermore, we investigated the characteristics of land use change from a novel perspective, i.e., via establishment of a complex network model. This model captured the characteristics of the land use system during different periods. The results indicated that urban expansion and cropland loss played an important role in land use pattern change. The future gravity center of urban development moved along the opposite direction to that from 2000 to 2015 in Xi’an city. Although the rate of urban expansion declined in the future, urban expansion remained the primary driver of land use change. The primary urban development directions were east-southeast (ENE), north-northeast (NNE) and west-southwest (WSW) from 1990 to 2000, 2000 to 2015, and 2015 to 2030, respectively. In fact, cropland played a vital role in land use dynamics regarding all land use types, and the stability of the land use system decreased in the future. Our study provides future land use patterns and a novel perspective to better understand land use change.

scholarly journals Estimating historical land use patterns in Amazonia for hydrological studies

2017 ◽  
Vol 8 (4) ◽  
pp. 189-197
Author(s):  
Christiane Cavalcante Leite ◽  
Marcos Heil Costa ◽  
Ranieri Carlos Ferreira de Amorim
Keyword(s):  
Land Use ◽  
Water Resources ◽  
Land Use Change ◽  
Census Data ◽  
Land Use Patterns ◽  
Use Patterns ◽  
The Past ◽  
The World ◽  
Historical Land Use ◽  
Past Land Use

The evaluation of the impacts of land-use change on the water resources has been, many times, limited by the knowledge of past land use conditions. Most publications on this field present only a vague description of the past land use, which is usually insufficient for more comprehensive studies. This study presents the first reconstruction of the historical land use patterns in Amazonia, that includes both croplands and pasturelands, for the period 1940-1995. During this period, Amazonia experienced the fastest rates of land use change in the world, growing 4-fold from 193,269 km2 in 1940 to 724,899 km2 in 1995. This reconstruction is based on a merging of satellite imagery and census data, and provides a 5'x5' yearly dataset of land use in three different categories (cropland, natural pastureland and planted pastureland) for Amazonia. This dataset will be an important step towards understanding the impacts of changes in land use on the water resources in Amazonia.

scholarly journals Impacts of land use change scenarios on hydrology and land use patterns in the Wu-Tu watershed in Northern Taiwan

2007 ◽  
Vol 80 (1-2) ◽  
pp. 111-126 ◽  
Author(s):  
Yu-Pin Lin ◽  
Nien-Ming Hong ◽  
Pei-Jung Wu ◽  
Chen-Fa Wu ◽  
Peter H. Verburg
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Land Use Patterns ◽  
Use Patterns ◽  
Northern Taiwan

scholarly journals SPATIAL ASSESSMENT OF BUILT-UP AND RECREATION EXPANSION USING GEO-INFORMATIC TECHNIQUE IN KOH CHANG ISLAND, THAILAND

2021 ◽  
Vol 39 (4 supplement) ◽  
pp. 1501-1506
Author(s):  
Pranita JUNGPANICH ◽  
◽  
Katawut WAIYASUSRI ◽  
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Spatial Data ◽  
Forest Land ◽  
Land Use Patterns ◽  
Spatial Assessment ◽  
Use Patterns ◽  
The Past ◽  
Recreation Areas ◽  
Recreation Area

Land-use change for examining the expansion of built-up and recreation, required effective techniques of spatial assessment, especially in areas with limited space such as Koh Chang island in Thailand which needed to be emphasized. The research objectives were to study land-use patterns in Koh Chang area in Trat province from 2000-2020, and study land-use change, especially the expansion of buildings and recreation area during that period, using geo-informatic technique. The study found that most of Koh Chang is forest land, up to 80% of the island, but the trend is declining. On the other hand, the area that has increased in number is built-up and recreation, which has increased from 7.22 km2 to 18.28 km2 and up to 253.19% in the past 20 years. The efficiency of geo-informatic technology can extract useful information, especially spatial data on land-use change. Therefore, it is known from which areas built-up and recreation areas are transformed in order to bring such information into a spatial database system for supporting decision-making in directing, monitoring and controlling areas for further expansion of tourism business in order not to create an impact on the environment.

scholarly journals Główne kierunki oraz historyczne i krajobrazowe uwarunkowania przemian pokrycia terenu okolic Pińczowa w latach 1839–2000

2021 ◽  
Vol 66 (3) ◽  
pp. 105-122
Author(s):  
Maria Zachwatowicz
Keyword(s):  
Land Use ◽  
Environmental Conditions ◽  
Cultural Landscapes ◽  
Human Impacts ◽  
Land Cover Changes ◽  
Anthropogenic Influences ◽  
Land Use Patterns ◽  
Natural Landscape ◽  
Landscape Characteristics ◽  
Use Patterns

The transformations of cultural landscapes are related to and result from environmental conditions and human impacts. The article describes the main directions of land cover changes in the vicinity of Pińczów in the years 1839–2000. The identified land use patterns were shown and discussed against the background of natural landscape characteristics, and anthropogenic influences associated with socio-political and economic situation of the region in the analyzed period.

scholarly journals GIS – SUPPORTED ASSESSMENT OF LAND USE DYNAMICS OF ABEOKUTA METROPOLIS FROM 1960 T0 2005

2017 ◽  
Vol 16 (2) ◽  
pp. 88-106
Author(s):  
B. O. ADELEKE ◽  
O. O.I. ORIMOOGUNJE
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Secondary Data ◽  
Forested Wetlands ◽  
Land Area ◽  
Land Use Patterns ◽  
Geospatial Techniques ◽  
Gis And Remote Sensing ◽  
Use Patterns ◽  
Light Forest

The study identified and analyzed land use patterns between 1960 and 2005, and examined the forces underlying land use change and projects the future pattern of land use change in the study area. Both primary and secondary data collected were analyzed using descriptive statistics and geospatial techniques of GIS and Remote Sensing. The results showed that settlement land use which was 1253.12 hectares (3%) in 1972 increased by six fold to 7684.27 hectares (16%) in 1984 and by tenfold to 12842.11 hectares (27%) of the total land area in 2005. Farmlands reduced from 8751.21 hectares (19%) in 1972 to 7144.32 hectares (15%) in 1984 to 3824.80 (8%) in 2005. The result equally showed that between 1972 and 1984 the population grew by 75.16% while settlements increased by 513.21%. Also between 1972 and 2005 the population grew by 206.70 % and settlements increased by 924.81 %. The result of the predictive model developed for this study showed that settlement, bare surface, shrub and water body will increase by 60.30%, 57.68%, 53.79% and 8.03% respectively while non-forested, farmlands, forested wetlands and light forest will decrease by 9.5%, 28.55%, 12.35% and 26.76% respectively. There were continuous changes among the various land use classes identified. 

Impact of land use patterns and agricultural practices on water quality in the Calapooia River Basin of western Oregon

2012 ◽  
Vol 67 (3) ◽  
pp. 183-201 ◽  
Author(s):  
G. W. Mueller-Warrant ◽  
S. M. Griffith ◽  
G. W. Whittaker ◽  
G. M. Banowetz ◽  
W. F. Pfender ◽  
...  
Keyword(s):  
Water Quality ◽  
Land Use ◽  
River Basin ◽  
Agricultural Practices ◽  
Land Use Patterns ◽  
Use Patterns

scholarly journals Estimating the Differential Change in Land Use Associated With Reservoir Construction

1976 ◽  
Vol 8 (1) ◽  
pp. 169-174
Author(s):  
Lonnie R. Vandeveer ◽  
H. Evan Drummond
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Land Use Planning ◽  
Quantitative Methods ◽  
Public Investment ◽  
Land Use Patterns ◽  
Use Patterns ◽  
Short Period ◽  
Substantial Investment ◽  
Federal Land

Much attention has been focused recently on the need for land use planning in this country. With federal land use legislation pending, it seems imperative that resource economists develop quantitative methods for evaluating and predicting land use change. The need to develop appropriate estimation techniques is most apparent for land use change in areas which have received substantial investment in a relatively short period of time. Construction of multi-purpose reservoirs is the most important type of public investment that has impacted land use patterns in Oklahoma since the “dust bowl” days.

scholarly journals Perubahan Penggunaan Tanah dan Faktor Pendorongnya di Kabupaten Karimun

2019 ◽  
Vol 16 (2) ◽  
pp. 136
Author(s):  
Rangga Olenka ◽  
Adrimas Adrimas ◽  
Melinda Noer
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Free Trade ◽  
Agricultural Land ◽  
Land Use Changes ◽  
Driving Factors ◽  
Free Trade Zone ◽  
Forest Conversion ◽  
Land Use Patterns ◽  
Use Patterns

ABSTRACTEarly detection is important to looking at the phenomenon of massive land use changes. Karimun Regency is one of the areas designated as one of the National Strategic Areas (KSN) for the benefit of economic growth. In addition, parts of the Karimun Regency are also designated as Free Trade Zone (FTZ). This has led to changes in land use patterns. This study analyzes changes in land use in Karimun Regency and its driving factors. Analysis of land use changes was carried out using land use map  and socio-economic data in 2008 - 2017. Methods of data analysis using spatial analysis and analysis of driving factors. The results showed that there were significant changes that occurred in land use. The rate of forest conversion and the decline in the area of agricultural land are very alarming. Growth of the built up area continues to increase. Development pattern of built area only concentrates on center of economic activity that already exists and also on transportation routes. Meanwhile the drivers of change in land use vary. Economic factors such as GRDP Karimun Regency and Investment and social factors such as urbanization and residents working in the primary sector drives land use change in Karimun Regency in 2008 – 2017. Key words: land use, land use change, driven factor ABSTRAKDeteksi dini penting dalam melihat fenomena perubahan penggunaan tanah yang masif. Kabupaten Karimun merupakan salah satu wilayah yang ditetapkan sebagai salah satu Kawasan Strategis Nasional (KSN) untuk kepentingan pertumbuhan ekonomi. Selain itu sebagian wilayah Kabupaten Karimun juga ditetapkan sebagai Kawasan Perdagangan Bebas dan Pelabuhan Bebas (Free Trade Zone). Hal tersebut mendorong perubahan pola penggunaan tanah. Studi ini menganalisis perubahan penggunaan tanah dan faktor pendorongnya yang terjadi di Kabupaten Karimun. Analisis perubahan penggunaan tanah dilakukan menggunakan peta penggunaan tanah dan data sosial ekonomi pada tahun 2008 - 2017. Metode analisis data menggunakan analisis spasial dan analisis faktor pendorong. Hasil penelitian menunjukkan bahwa ada perubahan signifikan yang terjadi pada penggunaan tanah. Laju konversi hutan sangat mengkhawatirkan. Pertumbuhan area terbangun terus meningkat. Pola pengembangan area terbangun hanya berkonsentrasi pada pusat kegiatan ekonomi yang sudah ada dan juga pada jalur transportasi. Sementara itu pendorong perubahan penggunaan tanah bervariasi. Faktor ekonomi seperti PDRB Kabupaten Karimun dan Investasi sedangkan faktor sosial seperti urbanisasi dan penduduk yang bekerja di sektor primer mendorong perubahan penggunaan tanah di Kabupaten Karimun tahun 2008 – 2017.  Kata Kunci: penggunaan tanah, perubahan penggunaan tanah, faktor pendorong.

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