A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Spatiotemporal Variations of Vegetation Coverage and Its Relationships with Climate Change and Human Activities in Ziwuling Region During 2000-2018
[Objective] The relationships between climate change, human activities and vegetation dynamics change were explored in order to provide a scientific basis for ecological protection, vegetation restoration monitoring and evaluation, ecological protection, and human activity management in Ziwuling Region. [Methods] Based on MODIS EVI data and meteorological data, spatiotemporal variation of EVI and its relationship with climate change and human activities in Ziwuling Region during the growing season (April to October) from 2000 to 2018 were analyzed by using the methods of a dimidiate pixel, correlation analysis, residual analysis, and other methods. The contributions of climate change and human activities to variations in vegetation coverage were quantitatively analyzed. [Results] The average vegetation cover index (EVI) in Ziwuling Region during the growing season from 2000 to 2018 ranged from 0.003 to 0.549 with a growth rate of 0.055/10 yr. The change rate of EVI in the study area was -0.19 to 0.25/10 yr in the past 19 years with an increase rate of 0.055/10 yr. The vegetation coverage in Ziwuling Region was about 46%, and the total vegetation coverage significantly increased over time. The change in vegetation cover was mainly due to the joint influence of human activities and climate change. The average annual temperature and precipitation had no significant correlation with the average EVI change during 2000—2018, while human activities had a positive influence on the average EVI change in the surrounding area of Ziwuling Region. On the whole, the contribution of climate change to vegetation cover change was 28.19%, and human activities was 71.81%. [Conclusion] There has been an increasing trend of ecological benefits arising from vegetation construction in Ziwuling Region. The change of vegetation cover has been mainly affected by human activities and climate change, with the contribution of human activities being higher.
Spatiotemporal Variations of Vegetation Coverage and Its Relationships with Climate Change and Human Activities in Ziwuling Region During 2000-2018
[Objective] The relationships between climate change, human activities and vegetation dynamics change were explored in order to provide a scientific basis for ecological protection, vegetation restoration monitoring and evaluation, ecological protection, and human activity management in Ziwuling Region. [Methods] Based on MODIS EVI data and meteorological data, spatiotemporal variation of EVI and its relationship with climate change and human activities in Ziwuling Region during the growing season (April to October) from 2000 to 2018 were analyzed by using the methods of a dimidiate pixel, correlation analysis, residual analysis, and other methods. The contributions of climate change and human activities to variations in vegetation coverage were quantitatively analyzed. [Results] The average vegetation cover index (EVI) in Ziwuling Region during the growing season from 2000 to 2018 ranged from 0.003 to 0.549 with a growth rate of 0.055/10 yr. The change rate of EVI in the study area was -0.19 to 0.25/10 yr in the past 19 years with an increase rate of 0.055/10 yr. The vegetation coverage in Ziwuling Region was about 46%, and the total vegetation coverage significantly increased over time. The change in vegetation cover was mainly due to the joint influence of human activities and climate change. The average annual temperature and precipitation had no significant correlation with the average EVI change during 2000—2018, while human activities had a positive influence on the average EVI change in the surrounding area of Ziwuling Region. On the whole, the contribution of climate change to vegetation cover change was 28.19%, and human activities was 71.81%. [Conclusion] There has been an increasing trend of ecological benefits arising from vegetation construction in Ziwuling Region. The change of vegetation cover has been mainly affected by human activities and climate change, with the contribution of human activities being higher.
Spatiotemporal Variations of Vegetation Coverage and Its Relationships with Climate Change and Human Activities in Ziwuling Region During 2000-2018
Jin Tiantian (author) / Cao Erjia (author) / Gong Jie (author)
2022
Article (Journal)
Electronic Resource
Unknown
Metadata by DOAJ is licensed under CC BY-SA 1.0