Which impacts more seriously on natural habitat loss and degradation? Cropland expansion or urban expansion?

Tang, Lanping; Ke, Xinli; Chen, Yuanyuan; Wang, Liye; Zhou, Qiushi; Zheng, Weiwei; Xiao, Bangyong

doi:10.1002/ldr.3768

Cited by 68 publications

(24 citation statements)

References 84 publications

(185 reference statements)

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“…Consequently, ecological lands (referring to land use types that provide valuable ecosystem services such as forests, grasslands and water bodies) are indirectly occupied by cropland reclamation. The impact of ecological land loss during cropland reclamation has been revealed in terms of ecosystem services such as food production [18], carbon storage [19], habitat quality [20], water yield [21] and water purification [22]. It has even been argued that the indirect impact on ecosystem services from ecological land loss due to cropland reclamation can be higher than that caused directly by urban expansion.…”

Section: Introductionmentioning

confidence: 99%

“…It has even been argued that the indirect impact on ecosystem services from ecological land loss due to cropland reclamation can be higher than that caused directly by urban expansion. As [20] has documented, cropland reclamation under a strict cropland protection policy can indirectly result in the loss of natural habitats, a loss that is much greater than the direct loss caused by urban expansion. Moreover, it has been estimated that the loss of carbon storage caused by cropland reclamation between 2000 and 2010 was 1.12 times more than that resulting from urban expansion in the same period [23].…”

Section: Introductionmentioning

confidence: 99%

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Impact of Cropland Reclamation on Ecological Security in the Yangtze River Economic Belt, China

Yin¹,

Zhou

2021

Sustainability

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Ecological security is important both for maintaining the function of an ecosystem and for providing ecosystem services to the human wellbeing. The impact of land use change/cover on ecological security has attracted considerable attention, whereas the role of cropland reclamation remains unclear. The indirect loss of ecological land that occurs upon the request of cropland requisition-compensation policies offer further changes to ecological security. In order to ascertain the impact of cropland reclamation on ecological security, in this study three scenarios are established, addressing cropland returning to ecological lands without a slope limitation, with a slope <25°, and with a reclaimed cropland slope ≥25°. This study was conducted in the Yangtze River economic belt (YREB) due to its important contribution to ecological security in China. Land uses in different scenarios in 2030 are projected using the land use simulation model LANDSCAPE. Accordingly, ecological security in each scenario was evaluated using the contribution–vigour–organization–resilience framework, comprising the variables carbon storage, water purification, water yield, habitat quality, net primary productivity, mean patch area, Shannon’s diversity index, largest patch index and contagion, as well as the normalized difference vegetation index. The results indicate that about 62% of YREB land is projected to remain stable in terms of ecological security, while about 21% will deteriorate and 17% will improve between 2015–2030. Land where ecological security is projected to improve is concentrated in areas where broad and connected croplands are distributed. The fact that a higher proportion of areas will deteriorate than improve suggests that the negative impact of cropland change on ecological security should not be ignored. Comparing different scenarios, croplands returning to ecological lands pose a particularly significant impact on ecological security, particularly in the upper reaches of the YREB, where steep croplands are concentrated.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Impact of Cropland Reclamation on Ecological Security in the Yangtze River Economic Belt, China

Yin¹,

Zhou

2021

Sustainability

Self Cite

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“…Over the past decades, rapid urbanization has altered the natural cover on land surfaces by converting extensive areas of natural and seminatural lands into urban lands ( Jiang, Deng & Seto, 2013 ; Song, Pijanowski & Tayyebi, 2015 ; Su, Guo & Hong, 2019 ). Such conversion eventually causes a significant reduction in CS ( Dai et al, 2021 ; Grimm et al, 2008 ; Li et al, 2020a ; Wang et al, 2018b ; Zhang et al, 2012 ; Zhu et al, 2021 ) and leads to severe environmental consequences and ecosystem degradation at multiple scales ( Cao et al, 2015 ; De Carvalho & Szlafsztein, 2019 ; Tang et al, 2021 ). Moreover, the urbanization rate in China is predicted to reach 65.73% by 2030, which will place huge pressure on the urban ecosystem.…”

Section: Introductionmentioning

confidence: 99%

Exploring the spatiotemporal changes in carbon storage under different development scenarios in Jiangsu Province, China

Zhang

Wang

ChunLei

et al. 2022

PeerJ

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Carbon storage (CS) is closely linked to the global challenge of climate change. Land use/cover (LULC) change is the main factor driving changes in CS, and evaluating the impact of LULC changes on CS is important for carbon balance. Taking Jiangsu Province as an example, we used the Integrated Valuation of Ecosystem Services and Trade-offs model to analyze the spatiotemporal changes in CS during 2000–2015. Then we coupled it with the patch-generating land use simulation model to simulate and predict LULC and CS in 2050 under four different development plans. The results showed that LULC change in Jiangsu Province was manifested mainly as transformation of cropland to construction land (3,485 km2) and cropland to water body (470 km2). The high value area for CS was concentrated mainly in forest land, water body and grassland, whereas the low value area was concentrated mainly in construction land. During 2000–2015, CS decreased by 0.23 Tg, and during 2015–2050, CS was predicted to decrease by 0.16, 1.69, 0.02, and 0.10 Tg under the baseline, fast, slow and harmonious development scenarios. The conversion of a large amount of cropland to construction land was the main cause of CS loss. In all scenarios, the carbon loss was the largest in southern Jiangsu and lowest in central Jiangsu. It is necessary to balance the conflict between economic development and ecological protection during the process of urbanization. This study can provide an important reference for decision makers during the formulation of regional development models and ecological management strategies.

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“…The Xinjiang Uygur Autonomous Region (below Xinjiang) is an extremely arid region, and it also contains the core area of the Silk Road Economic Belt. This unique geographical environment leads to water shortages, a fragile ecosystem and deurbanization, meaning it has faced the double pressure of ecological deterioration and economic poverty (Tang et al, 2020). However, with the implementation of the Belt and Road Initiative, Xinjiang has, in recent years, accelerated the process of urbanization.…”

Section: Introductionmentioning

confidence: 99%

Spatiotemporal investigation of the interactive coercing relationship between urbanization and ecosystem services in arid northwestern China

et al. 2021

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Rapid urbanization has negative effects on ecosystem structure, function, and balance, leading to the loss of ecosystem services (ES) and posing a threat to regional sustainable development. However, the complex interactive coercing relationship between urbanization and ES is not yet fully understood, especially in arid Northwestern China. In this study, we constructed an evaluative framework for urbanization and ES using land cover/land use data and socioeconomic data from 1990 to 2018. We used global and local autocorrelation models to reveal the spatiotemporal interaction between urbanization and ES. The results revealed that the urbanization index increased from 0.06 in 1990 to 0.16 in 2018 in Xinjiang, and urbanization was significantly negatively correlated with ES. With the acceleration of urbanization, the ecosystem services value (ESV) has decreased 2,698.74 × 109 Yuan from 1990 to 2018 (6.62 Yuan = 1 .00 US$). Due to geographical advantages, resource conditions, and land use changes, the spatial relationship of urbanization and ES has obvious heterogeneity. High–low correlation areas are mainly concentrated in the Northern Tianshan Mountain Economic Zone, whereas low–high correlation areas are concentrated in the Kashgar and Hotan Oases in southern Xinjiang. Based on regional geographical conditions and the spatial heterogeneity of resources, diversified ecological, social, and economic balance models should be considered to promote future sustainable urban planning and development.

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Which impacts more seriously on natural habitat loss and degradation? Cropland expansion or urban expansion?

Cited by 68 publications

References 84 publications

Impact of Cropland Reclamation on Ecological Security in the Yangtze River Economic Belt, China

Impact of Cropland Reclamation on Ecological Security in the Yangtze River Economic Belt, China

Exploring the spatiotemporal changes in carbon storage under different development scenarios in Jiangsu Province, China

Spatiotemporal investigation of the interactive coercing relationship between urbanization and ecosystem services in arid northwestern China

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