Vegetation Phenological Changes in Multiple Landforms and Responses to Climate Change
Vegetation phenology is highly sensitive to climate change, and the phenological responses of vegetation to climate factors vary over time and space. Research on the vegetation phenology in different climatic regimes will help clarify the key factors affecting vegetation changes. In this paper, base...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-02-01
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| Series: | ISPRS International Journal of Geo-Information |
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| Online Access: | https://www.mdpi.com/2220-9964/9/2/111 |
| _version_ | 1819077747277824000 |
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| author | Hongzhu Han Jianjun Bai Gao Ma Jianwu Yan |
| author_facet | Hongzhu Han Jianjun Bai Gao Ma Jianwu Yan |
| author_sort | Hongzhu Han |
| collection | DOAJ |
| description | Vegetation phenology is highly sensitive to climate change, and the phenological responses of vegetation to climate factors vary over time and space. Research on the vegetation phenology in different climatic regimes will help clarify the key factors affecting vegetation changes. In this paper, based on a time-series reconstruction of Moderate-Resolution Imaging Spectroradiometer (MODIS) normalized difference vegetation index (NDVI) data using the Savitzky−Golay filtering method, the phenology parameters of vegetation were extracted, and the Spatio-temporal changes from 2001 to 2016 were analyzed. Moreover, the response characteristics of the vegetation phenology to climate changes, such as changes in temperature, precipitation, and sunshine hours, were discussed. The results showed that the responses of vegetation phenology to climatic factors varied within different climatic regimes and that the Spatio-temporal responses were primarily controlled by the local climatic and topographic conditions. The following were the three key findings. (1) The start of the growing season (SOS) has a regular variation with the latitude, and that in the north is later than that in the south. (2) In arid areas in the north, the SOS is mainly affected by the temperature, and the end of the growing season (EOS) is affected by precipitation, while in humid areas in the south, the SOS is mainly affected by precipitation, and the EOS is affected by the temperature. (3) Human activities play an important role in vegetation phenology changes. These findings would help predict and evaluate the stability of different ecosystems. |
| first_indexed | 2024-12-21T19:02:07Z |
| format | Article |
| id | doaj.art-d9a7a53d9864463f91142be02b2abe12 |
| institution | Directory Open Access Journal |
| issn | 2220-9964 |
| language | English |
| last_indexed | 2024-12-21T19:02:07Z |
| publishDate | 2020-02-01 |
| publisher | MDPI AG |
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| series | ISPRS International Journal of Geo-Information |
| spelling | doaj.art-d9a7a53d9864463f91142be02b2abe122022-12-21T18:53:28ZengMDPI AGISPRS International Journal of Geo-Information2220-99642020-02-019211110.3390/ijgi9020111ijgi9020111Vegetation Phenological Changes in Multiple Landforms and Responses to Climate ChangeHongzhu Han0Jianjun Bai1Gao Ma2Jianwu Yan3School of Geography and Tourism, Shaanxi Normal University, Xi’an 710119, ChinaSchool of Geography and Tourism, Shaanxi Normal University, Xi’an 710119, ChinaChina Academy of Space Technology-Xi’an, Xi’an 710000, ChinaSchool of Geography and Tourism, Shaanxi Normal University, Xi’an 710119, ChinaVegetation phenology is highly sensitive to climate change, and the phenological responses of vegetation to climate factors vary over time and space. Research on the vegetation phenology in different climatic regimes will help clarify the key factors affecting vegetation changes. In this paper, based on a time-series reconstruction of Moderate-Resolution Imaging Spectroradiometer (MODIS) normalized difference vegetation index (NDVI) data using the Savitzky−Golay filtering method, the phenology parameters of vegetation were extracted, and the Spatio-temporal changes from 2001 to 2016 were analyzed. Moreover, the response characteristics of the vegetation phenology to climate changes, such as changes in temperature, precipitation, and sunshine hours, were discussed. The results showed that the responses of vegetation phenology to climatic factors varied within different climatic regimes and that the Spatio-temporal responses were primarily controlled by the local climatic and topographic conditions. The following were the three key findings. (1) The start of the growing season (SOS) has a regular variation with the latitude, and that in the north is later than that in the south. (2) In arid areas in the north, the SOS is mainly affected by the temperature, and the end of the growing season (EOS) is affected by precipitation, while in humid areas in the south, the SOS is mainly affected by precipitation, and the EOS is affected by the temperature. (3) Human activities play an important role in vegetation phenology changes. These findings would help predict and evaluate the stability of different ecosystems.https://www.mdpi.com/2220-9964/9/2/111vegetation phenologyspatio-temporal changeclimate factorsmodis ndvilandform |
| spellingShingle | Hongzhu Han Jianjun Bai Gao Ma Jianwu Yan Vegetation Phenological Changes in Multiple Landforms and Responses to Climate Change ISPRS International Journal of Geo-Information vegetation phenology spatio-temporal change climate factors modis ndvi landform |
| title | Vegetation Phenological Changes in Multiple Landforms and Responses to Climate Change |
| title_full | Vegetation Phenological Changes in Multiple Landforms and Responses to Climate Change |
| title_fullStr | Vegetation Phenological Changes in Multiple Landforms and Responses to Climate Change |
| title_full_unstemmed | Vegetation Phenological Changes in Multiple Landforms and Responses to Climate Change |
| title_short | Vegetation Phenological Changes in Multiple Landforms and Responses to Climate Change |
| title_sort | vegetation phenological changes in multiple landforms and responses to climate change |
| topic | vegetation phenology spatio-temporal change climate factors modis ndvi landform |
| url | https://www.mdpi.com/2220-9964/9/2/111 |
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