Measuring the spatio-temporal variation of habitat isolation due to rapid urbanization: A case study of the Shenzhen River cross-boundary catchment, China

Ng, Cho Nam; Xie, Yu; Yu, Xiao

doi:10.1016/j.landurbplan.2011.05.011

Cited by 59 publications

(25 citation statements)

References 35 publications

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“…However, the MSSC is observed to slightly decrease during the study period. From Table 2 in Ng et al, 2011, it is shown that the total fraction of Forest and Yuan land (orchard land) was almost unchanged from 1988 to 2008, and the increase of the urban built-up areas was mainly from cultivated land, a land use type that is highly susceptible to soil erosion under heavy rainfall. Therefore, it should be concluded that the slightly decreasing MSSC is a combined effect of the increase of urban built-up area and the well-kept forest and orchard land.…”

Section: Trend Analysis Of Historical Datamentioning

confidence: 99%

Hydrology, sediment circulation and long-term morphological changes in highly urbanized Shenzhen River estuary, China: A combined field experimental and modeling approach

Zhang

Mao

2015

Journal of Hydrology

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Section: Trend Analysis Of Historical Datamentioning

confidence: 99%

Hydrology, sediment circulation and long-term morphological changes in highly urbanized Shenzhen River estuary, China: A combined field experimental and modeling approach

Zhang

Mao

2015

Journal of Hydrology

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“…For example, loss and fragmentation of forests caused by urban expansion has raised great attention worldwide [10][11][12]. This is because forest loss and fragmentation have adverse impacts on a variety of ecological process and functions, such as deterioration of wildlife habitat quality [13] and threating biodiversity [14][15][16]. Understanding such impacts requires the quantification of forest loss and fragmentation associated with urban expansion [10,17,18].…”

Section: Introductionmentioning

confidence: 99%

Effects of Urban Expansion on Forest Loss and Fragmentation in Six Megaregions, China

Zhou

Zhang

et al. 2017

Remote Sensing

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Abstract:Urban expansion has significant effects on forest loss and fragmentation. Previous studies mostly focused on how the amount of developed land affected forest loss and fragmentation, but neglected the impacts of its spatial pattern. This paper examines the effects of both the amount and spatial pattern of urban expansion on forest loss and fragmentation. We conducted a comparison study in the six largest urban megaregions in China-Beijing-Tianjin-Hebei (BTH), Yangtze River Delta (YRD), Pearl River Delta (PRD), Wuhan (WH), Chengdu-Chongqing (CY), and Changsha-Zhuzhou-Xiangtan (CZT) urban megaregions. We first quantified both the magnitude and speed of urban expansion, and forest loss and fragmentation from 2000 to 2010. We then examined the relationships between urban expansion and forest loss and fragmentation by Pearson correlation and partial correlation analysis using the prefecture city as the analytical unit. We found: (1) urban expansion was a major driver of forest loss in the CZT, PRD, and CY megaregions, with 34.05%, 22.58%, and 19.65% of newly-developed land converted from forests. (2) Both the proportional cover of developed land and its spatial pattern (e.g., patch density) had significant impacts on forest fragmentation at the city level. (3) Proportional cover of developed land was the major factor for forest fragmentation at the city level for the PRD and YRD megaregions, but the impact of the spatial pattern of developed land was more important for the BTH and WH megaregions.

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“…Urban land transformations are most complex and dramatically irreversible land use changes and are thus one of the most studied phenomena (Wenhui 2012;Jiang and Tian 2010;Taubenböck et al 2009;Souch and Grimmond 2006). Urban land use changes such as loss of vegetation (Scolozzi and Geneletti 2012), increased built-up and open areas (Ng et al 2011) along with increased expanse of urban fabrics such as concrete and asphalt altogether alter the local climate of a city by modifying various biological and physical characteristics of the environment. These include vegetation cover, impervious built-up covers, presence of moisture, surface and air temperatures, soil properties and others, which in turn are governed by land use characteristics (Voogt and Oke 2003).…”

Section: Introductionmentioning

confidence: 99%

Spatio-temporal footprints of urbanisation in Surat, the Diamond City of India (1990–2009)

Sharma

Ghosh

Joshi

2012

Environ Monit Assess

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Urbanisation is a ubiquitous phenomenon with greater prominence in developing nations. Urban expansion involves land conversions from vegetated moisture-rich to impervious moisture-deficient land surfaces. The urban land transformations alter biophysical parameters in a mode that promotes development of heat islands and degrades environmental health. This study elaborates relationships among various environmental variables using remote sensing dataset to study spatio-temporal footprint of urbanisation in Surat city. Landsat Thematic Mapper satellite data were used in conjugation with geo-spatial techniques to study urbanisation and correlation among various satellite-derived biophysical parameters, [Normalised Difference Vegetation Index, Normalised Difference Built-up Index, Normalised Difference Water Index, Normalised Difference Bareness Index, Modified NDWI and land surface temperature (LST)]. Land use land cover was prepared using hierarchical decision tree classification with an accuracy of 90.4 % (kappa = 0.88) for 1990 and 85 % (kappa = 0.81) for 2009. It was found that the city has expanded over 42.75 km(2) within a decade, and these changes resulted in elevated surface temperatures. For example, transformation from vegetation to built-up has resulted in 5.5 ± 2.6 °C increase in land surface temperature, vegetation to fallow 6.7 ± 3 °C, fallow to built-up is 3.5 ± 2.9 °C and built-up to dense built-up is 5.3 ± 2.8 °C. Directional profiling for LST was done to study spatial patterns of LST in and around Surat city. Emergence of two new LST peaks for 2009 was observed in N-S and NE-SW profiles.

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Measuring the spatio-temporal variation of habitat isolation due to rapid urbanization: A case study of the Shenzhen River cross-boundary catchment, China

Cited by 59 publications

References 35 publications

Hydrology, sediment circulation and long-term morphological changes in highly urbanized Shenzhen River estuary, China: A combined field experimental and modeling approach

Hydrology, sediment circulation and long-term morphological changes in highly urbanized Shenzhen River estuary, China: A combined field experimental and modeling approach

Effects of Urban Expansion on Forest Loss and Fragmentation in Six Megaregions, China

Spatio-temporal footprints of urbanisation in Surat, the Diamond City of India (1990–2009)

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