Identification of the disturbance and trajectory types in mining areas using multitemporal remote sensing images

Yang, Zhen; Li, Jing; Zipper, Carl E.; Shen, Yingying; Miao, Hui; Donovan, Patricia F.

doi:10.1016/j.scitotenv.2018.06.341

Cited by 47 publications

(38 citation statements)

References 61 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Generally, one typical interruption-recovery pattern is composed of a loss process coming from the interruption and a recovery process till a new equilibrium [ 2 , [30] , [31] , [32] ]. Here, we hypothesize that the urban air pollution level diminished significantly going from Level I to Level II, and then gradually recovered to a new equilibrium state.…”

Section: Introductionmentioning

confidence: 99%

Characterizing the interruption-recovery patterns of urban air pollution under the COVID-19 lockdown in China

Cai

Wang

et al. 2021

Building and Environment

View full text Add to dashboard Cite

The COVID-19 pandemic provides an opportunity to study the effects of urban lockdown policies on the variation in pollutant concentrations and to characterize the recovery patterns of urban air pollution under the interruption of COVID-19 lockdown policies. In this paper, interruption-recovery models and regression discontinuity design were developed to characterize air pollution interruption-recovery patterns and analyze environmental impacts of the COVID-19 lockdown, using air pollution data from four Chinese metropolises (i.e., Shanghai, Wuhan, Tianjin, and Guangzhou). The results revealed the air pollutant interruption-recovery curve represented by the three lockdown response periods (Level I, Level II and Level III) during COVID-19. The curve decreased during Level I (A 25.3%–48.8% drop in the concentration of NO 2 has been observed in the four metropolises compared with the same period in 2018–2019.), then recovered around reopening, but decreased again during Level III. Moreover, the interruption-recovery curve of the year-on-year air pollution difference suggests a process of first decreasing during Level I and gradually recovering to a new equilibrium during Level III (e.g., the unit cumulative difference of NO 2 mass concentrations in Shanghai was 21.7, 22.5, 11.3 (μg/m 3 ) during Level I, II, and III and other metropolises shared similar results). Our findings reveal general trends in the air quality externality of different lockdown policies, hence could provide valuable insights into air pollutant interruption-recovery patterns and clear scientific guides for policymakers to estimate the effect of different lockdown policies on urban air quality.

show abstract

Section: Introductionmentioning

confidence: 99%

Characterizing the interruption-recovery patterns of urban air pollution under the COVID-19 lockdown in China

Cai

Wang

et al. 2021

Building and Environment

View full text Add to dashboard Cite

show abstract

“…Likewise, Sen et al (2012) analyzed reclamation trajectory on mined lands of the same region and reported that some sites had not achieved NDVI equivalence with reference systems after 15 years. According to Yang et al (2018), the reclaimed lands in our study follow a successional trajectory typical of post-disturbance photosynthetic recovery. Yang et al (2018) note, however, that the rate of recovery may vary with specific site conditions.…”

Section: Resultsmentioning

confidence: 89%

“…According to Yang et al (2018), the reclaimed lands in our study follow a successional trajectory typical of post-disturbance photosynthetic recovery. Yang et al (2018) note, however, that the rate of recovery may vary with specific site conditions. Of course, plant community PAR absorption is a basic measure of ecosystem function, and recovery of pre-mining NDVI is not the same as complete functional recovery (Yang et al, 2018).…”

Section: Resultsmentioning

confidence: 89%

See 1 more Smart Citation

Vegetation Function and Diversity on Reclaimed Surface-Mined Lands of Southeastern Ohio, Usa

Spieles¹,

Bennett²,

Weems³

et al. 2019

JASMR

View full text Add to dashboard Cite

Surface coal mining has transformed certain regions of Appalachia. Reclamation laws have evolved over the past fifty years, creating spatiotemporal variability in reclaimed landscapes. While the vegetation composition of reclaimed lands is well understood, less is known about the associated development of ecological function. We used two attributes of the plant community-diversity and the capacity to absorb photosynthetically active radiation-as fundamental indicators of ecosystem composition and function. Using both satellite-derived light reflectance and field sampling, we characterized the successional trajectory of reclaimed lands, reference forest, and reference grasslands in southeastern Ohio, USA. We also assessed the importance of active management in ecosystem restoration. The reclaimed lands in this study represent four different eras of regulation, from pre-1972 to post-1981. We compared the Normalized Difference Vegetation Index (NDVI) within and among sites from 2000-2016, and the Shannon-Wiener diversity index among sites in 2016-2017. In this study, the oldest reclamation sites (45-50 years since reclamation) achieved the highest capacity for light absorption by 2016, suggesting that time since disturbance, reclamation technique, or a combination of the two are conducive to the restoration of ecological function. Younger reclaimed sites (25-35 years since reclamation) accrued function more rapidly than older sites-reaching NDVI equivalence with reference ecosystems 28-34 years after mining-suggesting that reclamation technique can accelerate recovery. Active management of reclaimed lands does not improve light absorption capacity, but it does increase plant diversity, which is linked to a variety of other ecological functions.

show abstract

“…Shi et al [12] carried out a study on the influence of mining-induced subsidence on soil bacterial communities in aeolian sand area of western China. Marino et al [13] proposed a highaccuracy method to identify the location of mining disturbances and the time when they occurred by analyzing Landsat data. Guney and Gal [14] reported a case study analysis of surface subsidence of a Turkey longwall mine under weak geological conditions.…”

Section: Introductionmentioning

confidence: 99%

Field Measurement and Numerical Modelling Study on Mining‐Induced Subsidence in a Typical Underground Mining Area of Northwestern China

Zhang

Bai

Wang

et al. 2021

Advances in Civil Engineering

View full text Add to dashboard Cite

Mining-induced subsidence is a great concern for environmental protection in underground mining areas in China and all over the world. In view of the fact that the research on land degradation above underground coal mines are completely or partially independent of coal mining activity and the fact that the mechanism behind mining-induced subsidence has not been well understood, this study presents a field measurement and numerical study of mining-induced subsidence with respect to mining activity of three adjacent longwall panels in a coal mine in Northwest China. This study shows that surface subsidence lags far behind panel extraction or mining activity. The profiles of ground surface are dominated and manifested by the subsurface strata structures. The subsidence influence throughout the whole length of a longwall panel varies. Stability of strata structures within overburden before the final subsidence controls the stability of ground surface land. Chain pillars of 20 m between panels of 240 m wide with cover depth of 600 m have been crushed in the gob and do not have any function in supporting the overburden strata. The final subsidence of the three adjacent panels is far to come in the future and the land reuse above underground coal mines should be carefully planned by making sure that the gob is completely compacted or no potential secondary subsidence occurs in the future.

show abstract

Identification of the disturbance and trajectory types in mining areas using multitemporal remote sensing images

Cited by 47 publications

References 61 publications

Characterizing the interruption-recovery patterns of urban air pollution under the COVID-19 lockdown in China

Characterizing the interruption-recovery patterns of urban air pollution under the COVID-19 lockdown in China

Vegetation Function and Diversity on Reclaimed Surface-Mined Lands of Southeastern Ohio, Usa

Field Measurement and Numerical Modelling Study on Mining‐Induced Subsidence in a Typical Underground Mining Area of Northwestern China

Contact Info

Product

Resources

About