Dynamic changes of vegetation coverage in China-Myanmar economic corridor over the past 20 years
The China-Myanmar Economic Corridor (CMEC) is a flagship project of the “Belt and Road” Initiative (BRI), which have made a major breakthrough from conceptual planning to actual construction in 2020, and subsequent construction activities will have a definite impact on local vegetation. To provide s...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-10-01
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| Series: | International Journal of Applied Earth Observations and Geoinformation |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0303243421000854 |
| _version_ | 1811229751610703872 |
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| author | Jie Li Jinliang Wang Jun Zhang Jianpeng Zhang Han Kong |
| author_facet | Jie Li Jinliang Wang Jun Zhang Jianpeng Zhang Han Kong |
| author_sort | Jie Li |
| collection | DOAJ |
| description | The China-Myanmar Economic Corridor (CMEC) is a flagship project of the “Belt and Road” Initiative (BRI), which have made a major breakthrough from conceptual planning to actual construction in 2020, and subsequent construction activities will have a definite impact on local vegetation. To provide scientific support for vegetation conservation and sustainable development of the CMEC, statistical methods such as Morlet wavelet analysis, Mann-Kendall mutation test, Sen's slope estimator, Mann-Kendall trend test, and coefficient of variation were adopted to analyze the spatio-temporal changes in vegetation coverage; Hurst analysis was adopted to further predicted likely future development trends. The results suggested that: (1) The CMEC experienced an overall increasing Fractional Vegetation Cover (FVC) at a rate of 0.21%/yr from 2000 to 2019; 2005 was the mutation year when FVC changed from a slow increase to a significant increase. The FVC changes was mainly controlled by a 12-month oscillation period. The seasonal average FVC increase was slightly different, which were ranked in descending order, as winter (0.29%) > autumn (0.17%) > summer (0.14%) = spring (0.14%). The increasing trend in autumn and winter exceeded those in spring and summer, particularly after 2018. (2) The area with an increasing trend in FVC was five times of those with a decreasing trend (~49.40% VS ~ 9.97%). The former was mainly clustered in the Dehong Dai and Jingpo, China, central and southern part of sub-region Myanmar; whereas the latter primarily distributed in main urban zones such as Mangshi, Ruili, Mandalay, and Yangon. Above areas where FVC changes significantly were affected by human activities such as afforestation, agriculture and construction, and the fluctuation of FVC changes was strong in the short term. (3) Future changes in FVC indicated that ~ 88.08% of the CMEC will show a stable and positive trend, mainly agglomerated in forest and farmland zones. However, it is expected that vegetation coverage in main urban zones and several unused land zones formed by farmland degradation will experience further decrease, and the conservation of vegetation in these regions should be a focus during the construction of the CMEC. |
| first_indexed | 2024-04-12T10:18:28Z |
| format | Article |
| id | doaj.art-bad5dd6ace9849509f8dd831e7527029 |
| institution | Directory Open Access Journal |
| issn | 1569-8432 |
| language | English |
| last_indexed | 2024-04-12T10:18:28Z |
| publishDate | 2021-10-01 |
| publisher | Elsevier |
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| series | International Journal of Applied Earth Observations and Geoinformation |
| spelling | doaj.art-bad5dd6ace9849509f8dd831e75270292022-12-22T03:37:09ZengElsevierInternational Journal of Applied Earth Observations and Geoinformation1569-84322021-10-01102102378Dynamic changes of vegetation coverage in China-Myanmar economic corridor over the past 20 yearsJie Li0Jinliang Wang1Jun Zhang2Jianpeng Zhang3Han Kong4Faculty of Geography, Yunnan Normal University, Kunming 650500, China; Key Laboratory of Resources and Environmental Remote Sensing for Universities in Yunnan, Kunming 650500, China; Center for Geospatial Information Engineering and Technology of Yunnan Province, Kunming 650500, ChinaFaculty of Geography, Yunnan Normal University, Kunming 650500, China; Key Laboratory of Resources and Environmental Remote Sensing for Universities in Yunnan, Kunming 650500, China; Center for Geospatial Information Engineering and Technology of Yunnan Province, Kunming 650500, China; Corresponding author at: 768 Juxian Street, Chenggong District, Kunming, Yunnan 650500, China.School of Earth Science, Yunnan University, Kunming 650504, ChinaFaculty of Geography, Yunnan Normal University, Kunming 650500, China; Key Laboratory of Resources and Environmental Remote Sensing for Universities in Yunnan, Kunming 650500, China; Center for Geospatial Information Engineering and Technology of Yunnan Province, Kunming 650500, ChinaFaculty of Geography, Yunnan Normal University, Kunming 650500, ChinaThe China-Myanmar Economic Corridor (CMEC) is a flagship project of the “Belt and Road” Initiative (BRI), which have made a major breakthrough from conceptual planning to actual construction in 2020, and subsequent construction activities will have a definite impact on local vegetation. To provide scientific support for vegetation conservation and sustainable development of the CMEC, statistical methods such as Morlet wavelet analysis, Mann-Kendall mutation test, Sen's slope estimator, Mann-Kendall trend test, and coefficient of variation were adopted to analyze the spatio-temporal changes in vegetation coverage; Hurst analysis was adopted to further predicted likely future development trends. The results suggested that: (1) The CMEC experienced an overall increasing Fractional Vegetation Cover (FVC) at a rate of 0.21%/yr from 2000 to 2019; 2005 was the mutation year when FVC changed from a slow increase to a significant increase. The FVC changes was mainly controlled by a 12-month oscillation period. The seasonal average FVC increase was slightly different, which were ranked in descending order, as winter (0.29%) > autumn (0.17%) > summer (0.14%) = spring (0.14%). The increasing trend in autumn and winter exceeded those in spring and summer, particularly after 2018. (2) The area with an increasing trend in FVC was five times of those with a decreasing trend (~49.40% VS ~ 9.97%). The former was mainly clustered in the Dehong Dai and Jingpo, China, central and southern part of sub-region Myanmar; whereas the latter primarily distributed in main urban zones such as Mangshi, Ruili, Mandalay, and Yangon. Above areas where FVC changes significantly were affected by human activities such as afforestation, agriculture and construction, and the fluctuation of FVC changes was strong in the short term. (3) Future changes in FVC indicated that ~ 88.08% of the CMEC will show a stable and positive trend, mainly agglomerated in forest and farmland zones. However, it is expected that vegetation coverage in main urban zones and several unused land zones formed by farmland degradation will experience further decrease, and the conservation of vegetation in these regions should be a focus during the construction of the CMEC.http://www.sciencedirect.com/science/article/pii/S0303243421000854Fractional Vegetation Cover (FVC)Spatio-temporal changeMorlet wavelet analysisMann-Kendall testThe China-Myanmar Economic CorridorThe “Belt and Road” Initiative |
| spellingShingle | Jie Li Jinliang Wang Jun Zhang Jianpeng Zhang Han Kong Dynamic changes of vegetation coverage in China-Myanmar economic corridor over the past 20 years International Journal of Applied Earth Observations and Geoinformation Fractional Vegetation Cover (FVC) Spatio-temporal change Morlet wavelet analysis Mann-Kendall test The China-Myanmar Economic Corridor The “Belt and Road” Initiative |
| title | Dynamic changes of vegetation coverage in China-Myanmar economic corridor over the past 20 years |
| title_full | Dynamic changes of vegetation coverage in China-Myanmar economic corridor over the past 20 years |
| title_fullStr | Dynamic changes of vegetation coverage in China-Myanmar economic corridor over the past 20 years |
| title_full_unstemmed | Dynamic changes of vegetation coverage in China-Myanmar economic corridor over the past 20 years |
| title_short | Dynamic changes of vegetation coverage in China-Myanmar economic corridor over the past 20 years |
| title_sort | dynamic changes of vegetation coverage in china myanmar economic corridor over the past 20 years |
| topic | Fractional Vegetation Cover (FVC) Spatio-temporal change Morlet wavelet analysis Mann-Kendall test The China-Myanmar Economic Corridor The “Belt and Road” Initiative |
| url | http://www.sciencedirect.com/science/article/pii/S0303243421000854 |
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