The influence of temperature and precipitation on the vegetation dynamics of the tropical island of Hainan
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ORIGINAL PAPER
The influence of temperature and precipitation on the vegetation dynamics of the tropical island of Hainan Pengcheng Guo 1,2,3 & Xin Zhao 3,4 & Jiankang Shi 5 & Jucong Huang 6 & Jia Tang 7 & Rongrong Zhang 7 & Jin Chen 8 & Qianfeng Wang 7 & Jingyu Zeng 7 Received: 13 June 2020 / Accepted: 8 October 2020 # Springer-Verlag GmbH Austria, part of Springer Nature 2020
Abstract Understanding how terrestrial ecosystems respond to climate change can help achieve regional sustainability. The normalized difference vegetation Index (NDVI), which is an important vegetation parameter and ecological index, can directly reflect changes in the ecological environment. Based on meteorological observation data and NDVI monitoring data from 2000 to 2018, we explore the impact of climate change on vegetation on Hainan Island. Firstly, by using Mann–Kendall trend detection together with correlation and partial correlation analysis, we analyze the spatial patterns and trends of the NDVI, annual average temperature, and annual precipitation at grid level and also investigate the spatial relationship between the climatic factors and vegetation. The results show that (1) the ecological conditions on Hainan Island are good and the vegetation trends are positive; (2) the air temperature of Hainan Island has a strong positive effect on the NDVI; and (3) precipitation prevents vegetation growth in the rainy season especially in the central parts of the island. This study focuses on the spatiotemporal characteristics and evolution of vegetation and the influence of climate change on vegetation. Our study provides a scientific basis for achieving regional ecologically sustainable development and valuable evidence related to the impact of climate change on vegetation in tropical island regions.
1 Introduction Vegetation is a natural link connecting the soil, atmosphere, and water and plays an important role in energy exchange, the
hydrological cycle, and climate regulation at the land surface (Rawat et al. 2015; Deng and Chen 2017). The changing characteristics of ecosystems have become a vital part of studies of global change (Wang et al. 2014; Anwar 2019). The
Highlights • For tropical islands, the air temperature has a significant impact on vegetation. • The impact of climatic factors on vegetation is different in the dry and wet seasons. • Increased precipitation in tropical island areas in the wet season may prevent vegetation growth. • Our findings can help with understanding the characteristics of the response of tropical island vegetation to precipitation and air temperature. * Jingyu Zeng [email protected] Qianfeng Wang [email protected]
4
Guangxi Scientific Experimental Centre for Mining, Metallurgy and Environment, Guilin University of Technology, Guilin 541004, China
5
Hainan Academy Research of Environmental Sciences, Haikou 571126, China
1
College of Ecology & Environment, Hainan University, Haikou 570228, China
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Fujian Radiation Environment Supervision Station, Fuzhou 350013, China
2
College
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