scholarly journals Impact of Land-use Change on Dengue Hemorrhagic Fever in Kolaka District, Southeast Sulawesi Province, Indonesia

2022 ◽  
Vol 18 ◽  
pp. 114-119
Author(s):  
Ramadhan Tosepu ◽  
Fitra Saleh ◽  
Nasaruddin Nasaruddin ◽  
Misran Safar ◽  
Deniyatno Deniyatno

Land use change is contributing to the emergence of zoonotic diseases in the community. And can cause an increase in the spread of the virus through arthropods. This study aimed to determine the association of land use factors and dengue hemorrhagic fever in Kolaka District, Southeast Sulawesi Province, Indonesia. The secondary data obtained from various governments of Indonesia were used for this study. Data of dengue hemorrhagic fever from Ministry of Health of Republic Indonesia. Land use data is derived from the classification of Citra Landsat 8 on a scale of 1: 250,000 from 2010 to 2020. The Spearman rank correlation test was used to examine the relationship between land-use change and the incidence rate of dengue hemorrhagic fever. The results of this study In Period 2010-2015 is a correlation between Agriculture with dengue hemorrhagic fever ( α = 0.812, p <0.05), and water bodies with α =0.812. The area of agricultural land is increasing every year; in 2010, only 3.32% increase to 51.08% in 2015. Furthermore, in period 2016-2020 is a correlation between Forest with dengue hemorrhagic fever (α = 0.900, p <0.05), and Settlement (α = -0.900, p <0.05). Our findings could be used to improve the understanding of land-use change and dengue hemorrhagic fever in the Kolaka district and provide information on land use that does not damage the environment.

2019 ◽  
Vol 11 (17) ◽  
pp. 4663
Author(s):  
Habibullah Rajpar ◽  
Anlu Zhang ◽  
Amar Razzaq ◽  
Khalid Mehmood ◽  
Maula Bux Pirzado ◽  
...  

Agriculture is the mainstay of Pakistan’s economy. However, it has been noticed that farmers are increasingly giving up agriculture in favor of non-agricultural activities. This study was conducted in the Khairpur district of Sindh province, which is part of the Indus Plains in Pakistan. The main purpose of the study was to investigate the current and future land use change (LUC) trends and to study farmers’ perceptions of the causes and consequences of LUC and agricultural land abandonment (ALA) in the study area. The study used field survey data and secondary data obtained from the government sources. The results show that agricultural land in the region has decreased by about 9% in the past two decades. Survey data analysis confirms this because more than 80% of farmers believe that agricultural land in the area has declined over time. In addition, farmers believe that socioeconomic and environmental changes are the main reasons for LUC and ALA. We used a logistic regression model to determine the factors that influence farmers’ decisions to sell agricultural land for other uses. The results show that the age, income, land ownership, farm inheritance by successors, social networks and lack of basic facilities in the study area are the main determinants of farmers’ decisions to sell agricultural lands. In particular, farmers’ integration into the social network and their belief that the farm will be inherited by heirs reduces the possibility of selling land. As for the consequences of LUC and ALA, the results indicate that farmland prices, weeds infestation, urban diffusion, and pressure on existing infrastructure have increased in the study area. In addition, the results show that the prospects of farming in the area remain grim as most farmers indicated that they were willing to abandon agricultural lands in favor of other revenue generation activities. The study suggests that policymakers should pay close attention to controlling rapid LUC and ALA to keep lands green.


2020 ◽  
Vol 18 (13) ◽  
Author(s):  
Azizan Marzuki ◽  
Ahmad Sahir Jais

Urbanization is an effect of population growth. Increasing population contributed to the expanding of urban areas as cities try to accommodate more people within a minimal landscape. Urbanization takes up valuable land, sometimes productive agricultural land that feeds the population. The objectives of this paper are to investigate the connection between urban sprawl and its impact on agricultural productivity, and ultimately whether it affects food security in Malaysia. For this qualitative exploratory review exercise, a Systematic Literature Review (SLR) of secondary data was employed as the base for this study. Data mining techniques were used to gather relevant literature that included archival data, academic writings, and publications. The data are then dissected, analysed, and clustered using Atlas ti 8 software, focusing on thematic analysis. Urbanisation did affect the self-sufficiency level (SSL) of Malaysian food security, especially on landintensive food products such as vegetables and livestock. Recent government initiatives such as urban farming, land use policies were promoted to reduce the differences in food imports, ensuring Malaysian food security to be at an acceptable level. Significant development of this population dense proximity has created urban sprawl beyond the city limits, taking up valuable land space. Land-use conversion from agricultural land in Malaysia has been studied regarding its adverse effects on agricultural production. Urbanization therefore does affect food security through the land conversion of agricultural lands.


Widya Accarya ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 51-62
Author(s):  
I Made Kartika ◽  
I Gede Sujana ◽  
Alquinus Jehapu

Abstrak Canggu adalah sebuah desa yang terletak di kabupaten Kuta Utara, Kabupaten Badung sebagai Daerah Pengembangan Badung Tengah yang memiliki kebijakan mempertahankan Badung Tengah sebagai daerah pertanian dalam arti luas dan mencegah konversi sawah. Pertanyaan penelitian dari penelitian ini adalah tentang dampak pariwisata terhadap konversi lahan. Pemilihan desa Canggu sebagai lokasi penelitian karena desa Canggu berada di tengah-tengah wilayah Badung sebagai daerah pertanian, alam dan budaya sebagai semangat pariwisata desa Canggu, desa Canggu dipengaruhi oleh pembangunan fasilitas akomodasi. Jenis data dalam penelitian ini adalah sumber data kualitatif dan kuantitatif dari data primer dan sekunder. Data penelitian ini dikumpulkan melalui wawancara dan studi kepustakaan. Penentuan informan penelitian ini dimulai dengan menentukan informan pertama dan informan kunci. Teknik analisis data penelitian ini adalah analisis deskriptif kualitatif. Menurut hasil penelitian di desa Canggu didapat hasil sebagai berikut pengembangan pariwisata berdampak pada peningkatan konversi lahan pertanian, perubahan penggunaan lahan juga berdampak pada perubahan sosiokultural. Adapun lokasi penelitian ditentukan berdasarkan perkembangan pariwisata terhadap alih fungui lahan, hasil dari penelitian ini perkembangan pariwisata terhadap alih fungsi lahan berdampak pada kesejahtraan masyarakat Desa Canggu. Lahan yang dialih fungsikan dibangun Hotel, Homestay, Villa, Restoran, Laundry dan lain sebagainya yang menunjang ketertarikan wistawan, untuk berwisata ke Desa Canggu.  Alih fungsi lahan merupakan suatu tolok ukur untuk meningkatkan pendapatan ekonomi warga Desa canggu. Hal ini menyebabkan minat masyarakat menjadi meningkat untuk mengubah fungsi lahan mereka sebagai media penghubung perkembangan pariwisata tersebut. Faktor lain yang menyebabkan perubahan alih fungsi lahan di Desa Canggu adalah tingginya nilai permintaan dari wisatawan terhadap vasilitas yang disediakan. Kata kunci: Pariwisata dan alih fungsi lahan   Abstract Canggu is a village located in North Kuta district, Badung Regency as the Central Badung Development Area which has a policy of maintaining Central Badung as an agricultural area in the broad sense and conversion of rice fields. The research question of this research is about research on land conversion. The selection of the Canggu village as a research location is because the Canggu village is in the middle of the Badung area as an agricultural, natural and cultural area such as the spirit of tourism in the Canggu village, the Canggu village works with the construction of recreational facilities. The type of data in this study is the source of qualitative and quantitative data from primary and secondary data. Research data were collected through interviews and library research. The determination of the informants of this study begins with determining the first informant and key informant. The data analysis technique of this research is descriptive qualitative analysis. According to the results of research in the village of Canggu obtained the following results the development of tourism has an impact on increasing agricultural land conversion, land use changes also have an impact on sociocultural change. The research location is determined based on the development of tourism on land use change, the results of this study the development of tourism on land use change has an impact on the welfare of the people of Canggu Village. The land that has been converted has been built by hotels, homestays, villas, restaurants, laundry and others that support the interests of tourists, for a trip to Canggu Village. Transfer of land functions is a benchmark to increase the economic income of residents of Canggu Village. This causes the interest of the community to increase to change the function of their land as a media liaison with the development of tourism. Another factor causing changes in land use change in Canggu Village is the high value of requests from tourists for the facilities provided. Keywords: Tourism and land use change


2019 ◽  
Vol 6 (01) ◽  
pp. 21-28 ◽  
Author(s):  
A. Hatta ◽  
Lia Warlina

ABSTRAK The research objective were to identify land use change in Kecamatan Cibadak and to describe the impact of land use change toward farmer’s income. This research used primary and secondary data. Primary data was collected by distribution of questionary, while secondary data was obtained from related intitutions.overlay technique was used to identify land use change. In other hand, descriptive analysis was use to describe land use change impact toward on farmer’s income. The total change of land use was 1,86 % in seven years (2006-2013). The total change of land use was 1,19 % in three years (2013-2016). The total income of land use type settlement was 33,112 ha in the ten years. However, the total change of agricultural land was 19,699 ha. It were 11 farmers who convert their land stated that theor income were in change deu to land conversion. Their agricultural land was converted into built area. The farmers still own the land and the culding or houses.   Kata Kunci : Guna Lahan, Perubahan Guna Lahan, Pemasukan


Geosciences ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 312
Author(s):  
Barbara Wiatkowska ◽  
Janusz Słodczyk ◽  
Aleksandra Stokowska

Urban expansion is a dynamic and complex phenomenon, often involving adverse changes in land use and land cover (LULC). This paper uses satellite imagery from Landsat-5 TM, Landsat-8 OLI, Sentinel-2 MSI, and GIS technology to analyse LULC changes in 2000, 2005, 2010, 2015, and 2020. The research was carried out in Opole, the capital of the Opole Agglomeration (south-western Poland). Maps produced from supervised spectral classification of remote sensing data revealed that in 20 years, built-up areas have increased about 40%, mainly at the expense of agricultural land. Detection of changes in the spatial pattern of LULC showed that the highest average rate of increase in built-up areas occurred in the zone 3–6 km (11.7%) and above 6 km (10.4%) from the centre of Opole. The analysis of the increase of built-up land in relation to the decreasing population (SDG 11.3.1) has confirmed the ongoing process of demographic suburbanisation. The paper shows that satellite imagery and GIS can be a valuable tool for local authorities and planners to monitor the scale of urbanisation processes for the purpose of adapting space management procedures to the changing environment.


Land ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 627
Author(s):  
Duong H. Nong ◽  
An T. Ngo ◽  
Hoa P. T. Nguyen ◽  
Thuy T. Nguyen ◽  
Lan T. Nguyen ◽  
...  

We analyzed the agricultural land-use changes in the coastal areas of Tien Hai district, Thai Binh province, in 2005, 2010, 2015, and 2020, using Landsat 5 and Landsat 8 data. We used the object-oriented classification method with the maximum likelihood algorithm to classify six types of land uses. The series of land-use maps we produced had an overall accuracy of more than 80%. We then conducted a spatial analysis of the 5-year land-use change using ArcGIS software. In addition, we surveyed 150 farm households using a structured questionnaire regarding the impacts of climate change on agricultural productivity and land uses, as well as farmers’ adaptation and responses. The results showed that from 2005 to 2020, cropland decreased, while aquaculture land and forest land increased. We observed that the most remarkable decreases were in the area of rice (485.58 ha), the area of perennial crops (109.7 ha), and the area of non-agricultural land (747.35 ha). The area of land used for aquaculture and forest increased by 566.88 ha and 772.60 ha, respectively. We found that the manifestations of climate change, such as extreme weather events, saltwater intrusion, drought, and floods, have had a profound impact on agricultural production and land uses in the district, especially for annual crops and aquaculture. The results provide useful information for state authorities to design land-management strategies and solutions that are economic and effective in adapting to climate change.


Author(s):  
Yujuan Gao ◽  
Jianli Jia ◽  
Beidou Xi ◽  
Dongyu Cui ◽  
Wenbing Tan

The heavy metal pollution induced by agricultural land use change has attracted great attention. In this study, the divergent response of bioavailability of heavy metals in rhizosphere soil to different...


Author(s):  
Allison Neil

Soil properties are strongly influenced by the composition of the surrounding vegetation. We investigated soil properties of three ecosystems; a coniferous forest, a deciduous forest and an agricultural grassland, to determine the impact of land use change on soil properties. Disturbances such as deforestation followed by cultivation can severely alter soil properties, including losses of soil carbon. We collected nine 40 cm cores from three ecosystem types on the Roebuck Farm, north of Perth Village, Ontario, Canada. Dominant species in each ecosystem included hemlock and white pine in the coniferous forest; sugar maple, birch and beech in the deciduous forest; grasses, legumes and herbs in the grassland. Soil pH varied little between the three ecosystems and over depth. Soils under grassland vegetation had the highest bulk density, especially near the surface. The forest sites showed higher cation exchange capacity and soil moisture than the grassland; these differences largely resulted from higher organic matter levels in the surface forest soils. Vertical distribution of organic matter varied greatly amongst the three ecosystems. In the forest, more of the organic matter was located near the surface, while in the grassland organic matter concentrations varied little with depth. The results suggest that changes in land cover and land use alters litter inputs and nutrient cycling rates, modifying soil physical and chemical properties. Our results further suggest that conversion of forest into agricultural land in this area can lead to a decline in soil carbon storage.


Author(s):  
A. V. Prishchepov ◽  
F. Schierhorn ◽  
N. Dronin ◽  
E. V. Ponkina ◽  
D. Müller

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