Study on the characteristics of climate change in Changbai Mountain National Natural Reserve from 1958 to 2017
- PDF / 1,481,669 Bytes
- 16 Pages / 595.276 x 790.866 pts Page_size
- 88 Downloads / 140 Views
ORIGINAL PAPER
Study on the characteristics of climate change in Changbai Mountain National Natural Reserve from 1958 to 2017 Hanxi Wang 1 & Jianling Xu 1
&
Lianxi Sheng 1 & Liang Ma 1 & Xuejun Liu 2,3
Received: 7 April 2020 / Accepted: 30 July 2020 # Saudi Society for Geosciences 2020
Abstract Climate change is an important factor affecting the ecological environment of regions, and the local climate is closely related to the ecological environment. Taking the Changbai Mountain National Natural Reserve as an example, the regional climate change was studied by analyzing the data from the years 1953–2017. It is found that the temperature of Changbai Mountain is on the rise; the maximum monthly mean temperature difference is approximately 35 °C and the annual mean temperature is 2–5 °C. The monthly mean wind speed in this area has a wavy distribution and obvious seasonal variation. The correlation analysis shows that the correlation coefficient of the monthly mean value of cumulative photosynthetically active radiation (PAR) and total solar radiation (TSR), cumulative evaporation and cumulative PAR, cumulative evaporation and TSR, temperature and cumulative PAR, and temperature and cumulative evaporation were more than 0.9, indicating a significant correlation. The annual cumulative precipitation in this area is between 600 and 1000 mm, the annual cumulative evaporation is between 1000 and 1500 mm, the annual cumulative PAR is between 6000 and 10,000 mol m−2 s−1, and the annual TSR is between 4000 and 6000 MJ m−2. The annual cumulative precipitation, annual cumulative evaporation, annual mean wind speed, annual cumulative PAR, and annual TSR show a downward trend. The climate change in this area will not have a greater negative impact on the forest, but it still needs to pay close attention to the further climate change. Keywords Climate change . Temperature . Precipitation . Evaporation . Mean wind speed
Introduction According to the fifth climate change assessment report of the Intergovernmental Panel on Climate Change, the global mean temperature increased by 0.89 °C in the past 100 years, and the Responsible Editor: Zhihua Zhang * Jianling Xu [email protected] * Lianxi Sheng [email protected] * Xuejun Liu [email protected] 1
State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, Jingyue Street 2555, Changchun 130117, China
2
Jilin Province Institute of Education and Science, Hubo Road 65, Changchun 130022, China
3
Jilin Province Academy of Education and Science, Hubo Road 65, Changchun 130022, China
temperature increase of the past 50 years was up to 0.013 °C y−1 in recent years (Shen and Wang 2013). China’s surface temperature rose by 0.24 °C every 10 years from 1951 to 2017, higher than the global average temperature rise (Zhang et al. 2020a). The 21st century is projected to witness unprecedented climatic changes, with greater warming often reported for the high latitudes (Garcia et al. 2014). Plants are at
Data Loading...
