Impact of land use change on soil resources in the peri-urban area of Suzhou city

2005 ◽  
Vol 15 (1) ◽  
pp. 71-79 ◽  
Author(s):  
Xuelei Zhang ◽  
Manzhi Tan ◽  
Jie Chen ◽  
Yanci Sun
Author(s):  
Batara Surya ◽  
Syafri ◽  
Herminawaty Abubakar ◽  
Hernita Sahban ◽  
Harry Hardian Sakti

The spatial transformation of new urban areas into industrial urban areas impacts spatial structure, spatial patterns, and environmental degradation. This study aims to analyze the spatial transformation work as a determinant of the development of the new urban area of Metro Tanjung Bunga Makassar and analyze the relationship of spatial expansion, land use change and population increase for the growth of new city areas and the sustainable development of the Metro Tanjung Bunga area, Makassar city. The data for this study has been obtained through observation, surveys and documentation. The research approach used is a sequential explanation. According to the results, that excessive urbanization and maximum compaction led to spatial expansion towards the development of the new urban area of Metro Tanjung Bunga. Moreover, the increase in number has a dominant influence with a value of 32.3% on the growth of the new city area of Metro Tanjung Bunga, Makassar City. Spatial expansion, land use change, and population increase were determinants of growth factors in the new urban areas and they also had a significant impact on environmental quality degradation. This study recommends the importance of considering the impact of new urban spatial areas for the formulation of strategic policies on sustainable development as an effort to meet national development targets for the case of Metropolitan Cities in Indonesia.


2021 ◽  
Vol 3 (2) ◽  
pp. 52-59
Author(s):  
Ridwan Latief ◽  
Roland A. Barkey ◽  
Muh. Iqbal Suhaeb

Kawasan perkotaan di Kabupaten Maros dilalui oleh Sungai Maros. Aliran Sungai Maros mengalir menuju Selat Makassar dan merupakan muara bagi sungai-sungai lain di bagian hulu. Sungai Maros yang melalui kawasan perkotaan memiliki daerah aliran sungai yang sangat rentan untuk dialihfungsikan. Pertumbuhan alih fungsi lahan non terbangun menjadi terbangun secara fakta marak terjadi pada kawasan daerah aliran sungai Maros. Kawasan daerah aliran sungai yang terbanguni berpotensi menyebabkan gangguan ekologis dan hidrologis yang berdampak pada terjadinya banjir karena berkurangnya lahan resapan air serta berubahnya morfologi daerah aliran sungai. Tujuan pertama penelitan ini adalah mengetahui kondisi penggunaan lahan terbangun serta perubahannya dalam kurung waktu 5 tahun terakhir di kawasan Daerah Aliran Sungai Maros menggunakan metode analisi tumpang tindih peta. Tujuan kedua adalah mengkaji pengaruh perubahan penggunaan lahan terbangun terhadap banjir di kawasan Daerah Aliran Sungai Maros dengan menggunakan analisis regresi linear sederhana. Variabel prediktor yang digunakan yaitu perubahan penggunaan lahan (X), dengan variabel kriterium adalah luas banjir (Y). Hasil penelitian menunjukkan bahwa perubahan penggunaan lahan terbangun pada kawasan daerah aliran sungai Maros mengalami peningkatan yang cukup tinggi, dimana lahan kebun yang berubah menjadi permukiman sebesar 18,4 ha. Sedangkan sawah yang berubah menjadi permukiman sebesar 3,68 ha dari tahun 2015 ke tahun 2019. Perubahan penggunaan lahan terbangun yang terjadi berpengaruh kuat dan signifikan terhadap peningkatan luas genangan banjir pada kawasan daerah aliran sungai Maros. The urban area in Maros Regency is traversed by the Maros River. Maros River flows towards Makassar Strait and is the mouth of other rivers in upstream. Maros River which passes through the urban area has a watershed river that is vulnerable to conversion. The growth of conversion of non-built land into built-up areas in fact is rife in Watershed Maros. Developed watershed areas have the potential to cause ecological and hydrological disturbances that have an impact on flooding due to reduced water catchment areas and changing morphology of river basins. The first objective of this research is to determine the conditions of built-up areas and changes within the last 5 years in the Watershed Maros using overlapping map analysis method. The second purpose is to examine the effect of changes in built-up land use on flooding in Maros watershed area using simple linear regression analysis. The predictor variables used are land use change (X), with the criterion variable is the flood area (Y). The results showed that the land use change was built on the watershed area of Maros has increased quite highly, where 18.4 ha of land has been converted into a settlement. While the rice fields are changed to a settlement of 3.68 ha from 2015 to 2019. Changes on the use of built-up land that occurs have a strong and significant effect on increasing the area of  flood inundation in the watershed area of Maros


2012 ◽  
Vol 34 ◽  
pp. 432-444 ◽  
Author(s):  
A.O. Tavares ◽  
R.L. Pato ◽  
M.C. Magalhães

2019 ◽  
Vol 9 (2) ◽  
pp. 3887-3891 ◽  
Author(s):  
T. L. Dammalage ◽  
N. T. Jayasinghe

Colombo district has become an increasingly congested urban society. It has been reported that the frequent flooding in the Colombo district occurs due to the shrinking of open spaces, illegal constructions, and lack of suitable waste disposal facilities. Therefore, this study focuses on analyzing the impact of land-use change on the flood of Colombo district in May 2016 in comparison to the land-use during the flood in 1989. Accordingly, Landsat images were utilized to identify the land-use by using NDVI, NDBI, and NDWI indices. Out of the several techniques examined, SVM classification was chosen, and change detection techniques in conjunction with remote sensing and GIS environment were adopted. SVM classification showed the highest accuracy for land-use classification, which was 99.0% in 1989 and 99.9% in 2016. The comparison of land-use changes of 1989 and 2016 with similar flood extent of the Colombo district proved that the area of the Kelani river watershed changed into urban area, having a significant impact on flood inundation. The Kelani river watershed includes 23% of the total urban area of the Colombo district. Similarly, the entire area of land-use transformation covered 37.7% of the area within the watershed region of the Colombo district. Eventually, this research identified the significant impact of Colombo district floods in May 2016 on land-use changes.


2012 ◽  
Vol 38 (1-3) ◽  
pp. 267-275 ◽  
Author(s):  
Tae Seok Shon ◽  
Sang Dan Kim ◽  
Eun Young Cho ◽  
Ji Ye Im ◽  
Kyung Sok Min ◽  
...  
Keyword(s):  
Land Use ◽  

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