Assessing the Spatiotemporal Dynamics of Vegetation Coverage in Urban Built-Up Areas

Jinlong Chen, Zhonglei Yu (), Mengxia Li and Xiao Huang
Additional contact information
Jinlong Chen: The College of Geography and Environmental Science, Henan University, Kaifeng 475004, China
Zhonglei Yu: The College of Geography and Environmental Science, Henan University, Kaifeng 475004, China
Mengxia Li: The College of Geography and Environmental Science, Henan University, Kaifeng 475004, China
Xiao Huang: Department of Geosciences, University of Arkansas, Fayetteville, AR 72701, USA

Land, 2023, vol. 12, issue 1, 1-17

Abstract: As the main carbon sink in the carbon cycle process, vegetation is an important support for achieving “carbon peaking” and “carbon neutrality. How does the vegetation coverage of urban built-up areas change in the process of urbanization in China? Taking advantage of Landsat remote sensing data, we extract urban built-up areas, calculate the Normalized Difference Vegetation Index (NDVI), estimate fractional vegetation cover (FVC), and analyze the temporal and spatial dynamics of vegetation coverage in built-up areas of provincial capitals from the national and individual city levels in China. Major conclusions are as follows: (1) The FVC in the urban built-up areas has increased by 7.97%, and the urban green space has gradually changed from the “green core” distribution model to the “green vein” distribution mode. (2) The disparities in FVC of built-up areas of provincial capitals are notable, presumably due to a variety of factors that include the natural geographic environment, economic development level, built-up area expansion, land type conversion, afforestation of greening policy, etc. (3) Not just simply raise or lower, the FVC curves in the built-up areas of provincial capital cities present oscillating patterns with gradually weakening amplitude. Our study is expected to provide scientific references of an important theoretical basis for urban ecological construction and practical support for promoting the harmonious development of urban residents and urban environments in China.

Keywords: urban vegetation coverage; remote sensing; green space; urban built-up area; urbanization (search for similar items in EconPapers)
JEL-codes: Q15 Q2 Q24 Q28 Q5 R14 R52 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

Downloads: (external link)
https://www.mdpi.com/2073-445X/12/1/235/pdf (application/pdf)
https://www.mdpi.com/2073-445X/12/1/235/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jlands:v:12:y:2023:i:1:p:235-:d:1032745

Access Statistics for this article

Land is currently edited by Ms. Carol Ma

More articles in Land from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().