Isolating the Impacts of Land Use/Cover Change and Climate Change on the GPP in the Heihe River Basin of China
文献类型：期刊论文
| 作者 | You, Nanshan1,2; Meng, Jijun1; Zhu, Lijun1; Jiang, Song1; Zhu, Likai1,3; Li, Feng1; Kuo, Li-Jen1 |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
 |
| 出版日期 | 2020-10-01 |
| 卷号 | 125期号:10页码:14 |
| ISSN号 | 2169-8953 |
| 关键词 | GPP land use and land cover change climate change attritube analyses interannual variability VPM |
| DOI | 10.1029/2020JG005734 |
| 通讯作者 | Meng, Jijun(jijunm@pku.edu.cn) ; Zhu, Lijun(lzhu68@163.com) |
| 英文摘要 | Terrestrial gross primary production (GPP) is a key indicator of the ecosystem response to climate change and land use/cover change (LUCC) in arid areas. The available global GPP data sets cannot meet the demands for local applications in arid areas due to sparse vegetation and extreme climate conditions. Here, we developed a novel GPP estimation model for the Heihe River Basin (HRB), the second largest inland river basin in northern China, and disentangled the impacts of climate change and LUCC on GPP. First, we calibrated the vegetation photosynthesis model (VPM) using CO2 flux observations from multiple stations in the HRB and developed a modified local GPP model (HRB-VPM). Then, we decoupled the joint effects of LUCC and climate change on GPP based on the log and differential transformation method. The results showed that HRB-VPM outperformed Moderate Resolution Imaging Spectroradiometer and VPM GPP models in arid ecosystems. The root mean square error of HRB-VPM was 4.9 and 1.5 gCm(-2) day(-1) lower than those of the Moderate Resolution Imaging Spectroradiometer and VPM models, respectively. We concluded that the underlying driving forces of the GPP changes were distinct across the HRB. In the upper reach, climate change accounted for 65.8% of GPP changes, while in the middle and lower reaches, LUCC contributed to 75.1% of GPP changes. Our research provides an effective way to monitor arid ecosystem degradation and is useful for mitigating the negative impacts of human activities and future climate change. |
| WOS关键词 | GROSS PRIMARY PRODUCTION ; CARBON-DIOXIDE UPTAKE ; EDDY-COVARIANCE ; USE EFFICIENCY ; INTERANNUAL VARIATIONS ; PRIMARY PRODUCTIVITY ; SATELLITE ; FOREST ; FLUXES ; MODEL |
| 资助项目 | National Natural Science Foundation of China (NSFC)[41871074] ; Shandong Provincial Natural Science Foundation, China[ZR2019BD040] ; Ministry of Education Laboratory for Earth Surface Processes, Peking University |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology |
| 语种 | 英语 |
| 出版者 | AMER GEOPHYSICAL UNION |
| WOS记录号 | WOS:000586701500007 |
| 资助机构 | National Natural Science Foundation of China (NSFC) ; Shandong Provincial Natural Science Foundation, China ; Ministry of Education Laboratory for Earth Surface Processes, Peking University |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/156583]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Meng, Jijun; Zhu, Lijun |
| 作者单位 | 1.Peking Univ, Coll Urban & Environm Sci, Key Lab Earth Surface Proc, Minist Educ, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing, Peoples R China 3.Linyi Univ, Coll Resources & Environm, Shandong Prov Key Lab Water & Soil Conservat & En, Linyi, Shandong, Peoples R China |
| 推荐引用方式 GB/T 7714 | You, Nanshan,Meng, Jijun,Zhu, Lijun,et al. Isolating the Impacts of Land Use/Cover Change and Climate Change on the GPP in the Heihe River Basin of China[J]. JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,2020,125(10):14. |
| APA | You, Nanshan.,Meng, Jijun.,Zhu, Lijun.,Jiang, Song.,Zhu, Likai.,...&Kuo, Li-Jen.(2020).Isolating the Impacts of Land Use/Cover Change and Climate Change on the GPP in the Heihe River Basin of China.JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,125(10),14. |
| MLA | You, Nanshan,et al."Isolating the Impacts of Land Use/Cover Change and Climate Change on the GPP in the Heihe River Basin of China".JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES 125.10(2020):14. |
入库方式： OAI收割
来源：地理科学与资源研究所
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