Vegetation Changes in Response to Climatic Factors and Human Activities in Jilin Province, China, 2000–2019

Ying Li, Zhibo Zhao, Lingzhi Wang, Guanghui Li, Lei Chang and Yuefen Li
Additional contact information
Ying Li: College of Earth Sciences, Jilin University, Changchun 130061, China
Zhibo Zhao: Faculty of Built Environment, University of Malaya, Kuala Lumpur 50603, Malaysia
Lingzhi Wang: College of Earth Sciences, Jilin University, Changchun 130061, China
Guanghui Li: College of Earth Sciences, Jilin University, Changchun 130061, China
Lei Chang: College of Earth Sciences, Jilin University, Changchun 130061, China
Yuefen Li: College of Earth Sciences, Jilin University, Changchun 130061, China

Sustainability, 2021, vol. 13, issue 16, 1-16

Abstract: Dynamic change in vegetation is an integral component of terrestrial ecosystems, which has become a significant research area in the current context of global climate warming. Jilin Province in northeast China is an ecologically fragile area, and there is an urgent need to understand its vegetation changes and responses to both climatic factors and human activities. The normalized difference vegetation index (NDVI) was used to analyze trends in vegetation growth, and indicated significant growth overall. The NDVI of different vegetation cover types is increasing, indicating that the vegetation is continuously greening, and in descending order, the growth trends were grassland (0.0035/year) > permanent wetland (0.0028/year) > cropland (0.0027/year) > forest land (0.0022/year) > barren land (−0.0001/year). Grassland and cropland vegetation types included the most severely degraded areas, with fluctuating NDVI values. Precipitation was the main positive controlling climatic factor of NDVI in the western regions of the study area, while average temperature was the main factor in the eastern regions. Precipitation was the main climatic control factor for grassland and cropland, while forest land was limited by precipitation and average temperature. Barren land and permanent wetland were slightly negatively correlated with precipitation. From 2000 to 2019, the residual values for NDVI increased from −0.0121 to 0.0116, and the impact of human activities on vegetation changed from negative to positive. By 2019, the proportion of positively affected zones was as high as 94.01%, and the negatively affected zones were mainly distributed across transitional areas of cropland and grassland, and urban and built-up land and forest land.

Keywords: vegetation NDVI; climatic factors; human activities; spatial-temporal changes; Jilin province (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2071-1050/13/16/8956/pdf (application/pdf)
https://www.mdpi.com/2071-1050/13/16/8956/ (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:jsusta:v:13:y:2021:i:16:p:8956-:d:611878

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

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