1
|
Li W, Du J, Li S, Zhou X, Duan Z, Li R, Wu S, Wang S, Li M. The variation of vegetation productivity and its relationship to temperature and precipitation based on the GLASS-LAI of different African ecosystems from 1982 to 2013. INTERNATIONAL JOURNAL OF BIOMETEOROLOGY 2019; 63:847-860. [PMID: 30879137 DOI: 10.1007/s00484-019-01698-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 01/14/2019] [Accepted: 02/13/2019] [Indexed: 06/09/2023]
Abstract
In recent years, many studies have focused on the changes of partial or single African ecosystems and the drivers of those changes. However, focusing only on partial or single ecosystems has limited the understanding of the relationships between the vegetation and climate changes in all of the African ecosystems. In this study, the temporal trends of the satellite-derived annual mean leaf area index (GLASS-LAI) were analyzed, and the inter-annual relationships were developed between the annual mean LAI and the climate variables (precipitation and temperature) for the time period ranging from 1982 to 2013. Additionally, this study applied seasonal curves and step-wise multiple regression methods to investigate the relationships between intra-annual LAI and climate changes. It was found that the GLASS-LAI over half of Africa had shown general significant greening or browning trends during the period from 1982 to 2013. From the results of inter-annual analysis, with mean annual precipitation lower than 600 mm, the greening of the savannas and grasslands in the Sahel was found to highly correspond with the increased precipitation. In contrast, the evergreen broadleaf forests in the Gulf of Guinea and Congo Basin showed strongly positive responses to the annual temperature when the mean annual temperature was below 25 °C. In regard to the intra-annual responses, the precipitation with 1-month lags was found to be helpful for the vegetation growth, with the exception of the evergreen broadleaf. The results of this research study indicated that the different land-covers in Africa had displayed clear differences in their annual trends during the examined 32-year period and had responded differently to the inter- and intra-annual climate drivers. This difference was evident by the characteristics of the vegetation covers and the geographic distributions. Therefore, further examinations of these differences can potentially improve the understanding of the land surface-atmosphere interactions among the different African ecosystems.
Collapse
Affiliation(s)
- Wantong Li
- School of Geography and Ocean Science, Nanjing University, Nanjing, China
- Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, China
| | - Jinkang Du
- School of Geography and Ocean Science, Nanjing University, Nanjing, China.
- Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, China.
| | - Shengfeng Li
- School of Geography and Ocean Science, Nanjing University, Nanjing, China
| | - Xiaobing Zhou
- Department of Geophysical Engineering, Montana Tech of The University of Montana, Butte, MT, USA
| | - Zheng Duan
- Lancaster Environment Centre, Lancaster University, LA1 4YQ, Lancaster, United Kingdom
| | - Runjie Li
- School of Geography and Ocean Science, Nanjing University, Nanjing, China
| | - Senyao Wu
- School of Geography and Ocean Science, Nanjing University, Nanjing, China
| | - Shanshan Wang
- School of Geography and Ocean Science, Nanjing University, Nanjing, China
| | - Maohua Li
- School of Geography and Ocean Science, Nanjing University, Nanjing, China
| |
Collapse
|
2
|
Ebinger CJ, Deino AL, Tesha AL, Becker T, Ring U. Tectonic controls on rift basin morphology: Evolution of the northern Malawi (Nyasa) Rift. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/93jb01392] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
3
|
|
4
|
Nyblade AA, Pollack HN. A global analysis of heat flow from Precambrian terrains: Implications for the thermal structure of Archean and Proterozoic lithosphere. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/93jb00521] [Citation(s) in RCA: 166] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
5
|
Braile L, Keller G, Wendlandt R, Morgan P, Khan M. Chapter 5 The east african rift system. CONTINENTAL RIFTS:EVOLUTION, STRUCTURE, TECTONICS 2006. [DOI: 10.1016/s0419-0254(06)80013-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
|
6
|
Weeraratne DS, Forsyth DW, Fischer KM, Nyblade AA. Evidence for an upper mantle plume beneath the Tanzanian craton from Rayleigh wave tomography. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2002jb002273] [Citation(s) in RCA: 172] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | - Donald W. Forsyth
- Department of Geological Sciences; Brown University; Providence Rhode Island USA
| | - Karen M. Fischer
- Department of Geological Sciences; Brown University; Providence Rhode Island USA
| | - Andrew A. Nyblade
- Department of Geosciences; Pennsylvania State University; University Park Pennsylvania USA
| |
Collapse
|
7
|
Artemieva IM, Mooney WD. Thermal thickness and evolution of Precambrian lithosphere: A global study. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2000jb900439] [Citation(s) in RCA: 629] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
8
|
|
9
|
Ritsema J, Nyblade AA, Owens TJ, Langston CA, VanDecar JC. Upper mantle seismic velocity structure beneath Tanzania, east Africa: Implications for the stability of cratonic lithosphere. ACTA ACUST UNITED AC 1998. [DOI: 10.1029/98jb01274] [Citation(s) in RCA: 144] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
10
|
|
11
|
Lenardic A. On the heat flow variation from Archean cratons to Proterozoic mobile belts. ACTA ACUST UNITED AC 1997. [DOI: 10.1029/96jb02849] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
12
|
Nyblade AA, Langston CA, Last RJ, Birt C, Owens TJ. Seismic experiment reveals rifting of craton in Tanzania. ACTA ACUST UNITED AC 1996. [DOI: 10.1029/96eo00339] [Citation(s) in RCA: 67] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
13
|
Durrheim RJ, Mooney WD. Evolution of the Precambrian lithosphere: Seismological and geochemical constraints. ACTA ACUST UNITED AC 1994. [DOI: 10.1029/94jb00138] [Citation(s) in RCA: 194] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|