Mapping human appropriation of net primary production in agroecosystems in the Heihe River Basin, China
文献类型：期刊论文
| 作者 | Liu, Yaqun2,3; Song, Wei1,2,4 |
| 刊名 | AGRICULTURE ECOSYSTEMS & ENVIRONMENT
 |
| 出版日期 | 2022-09-01 |
| 卷号 | 335页码:11 |
| 关键词 | Human appropriation of net primary production Crop-type-specific HANPP Spatially heterogeneous impacts Remote sensing Food-ecological security Sustainable agroecosystem development |
| ISSN号 | 0167-8809 |
| DOI | 10.1016/j.agee.2022.107996 |
| 通讯作者 | Song, Wei(songw@igsnrr.ac.cn) |
| 英文摘要 | The Human Appropriation of Net Primary Production (HANPP) of agroecosystems is critical to food security, sustainable cropland use, and key biogeochemical processes such as carbon cycling and energy flow. However, current agroecosystem management lacks the support of high-resolution crop-type-specific HANPP information. To this end, this study integrated multi-source data of crop type, Normalized Difference Vegetation Index (NDVI) time-series, irrigation and climate, and multiple methods of the Miami model, the Carnegie-Ames-Stanford Approach (CASA) model, and process parameters to map the 30-m resolution spatial distribution of agroecosystem HANPP in the Heihe River Basin (HRB) in 2007 and 2012. We then analyzed the influences of climate condition, irrigation, and crop type on the HANPP. The average HANPP in the HRB decreased from 762.4 to 712.1 g C/m2 from 2007 to 2012, with a decrease by 6.6%. The HANPP values of wheat, barley, and oilseed rape decreased by more than 10.0%, whereas that of corn only decreased by 3.1%. The ratio of HANPP to potential NPP (NPPpot) dropped from 82.7% to 81.4% and that of land-use-induced HANPP (HANPPLUC) to HANPP from 61.9% to 58.5%, whereas that of crop-harvest-induced HANPP (HANPPharv) to HANPP increased from 38.1% to 41.5%. These changes indicated that crop productivity increased whereas NPP loss decreased. Crop type conversion accounted for 84.7% of the HANPP changes in HRB, with a value of -93.6 x 109 g C. Due to irrigation supplementation, the HANPP in high-temperature areas was higher than that in low-temperature areas with high precipitation. However, irrigation above 1000 mm no longer promoted HANPP, indicating that the irrigation efficiency in the HRB is low. Reducing HANPPLUC and carbon-water inputs while increasing HANPPharv is the key approach to obtain food security and sustainable agroecosystem development. Effective irrigation strategies and scientific crop planting adjustment should take into account their spatially heterogeneous and crop-specific impacts on the HANPP to help achieve these goals. |
| WOS关键词 | GLOBAL HUMAN APPROPRIATION ; ECOSYSTEM SERVICES ; GRAIN PRODUCTION ; PATTERNS ; CONSUMPTION ; EFFICIENCY ; EXPANSION ; ZHANGYE ; MODELS ; OASIS |
| 资助项目 | Second Tibetan Plateau Scientific Expedition and Research[2019QZKK0603] ; National Natural Science Foundation of China[41671177] ; Stra-tegic Priority Research Program of Chinese Academy of Sciences[XDA20040201] ; China Postdoctoral Sci-ence Foundation[2021M700143] |
| WOS研究方向 | Agriculture ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000800611900001 |
| 出版者 | ELSEVIER |
| 资助机构 | Second Tibetan Plateau Scientific Expedition and Research ; National Natural Science Foundation of China ; Stra-tegic Priority Research Program of Chinese Academy of Sciences ; China Postdoctoral Sci-ence Foundation |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/179167]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Song, Wei |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 3.Chinese Acad Sci, Key Lab Reg Sustainable Dev Modeling, Beijing 100101, Peoples R China 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, 11(A), Datun Rd,Chaoyang Dist, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Yaqun,Song, Wei. Mapping human appropriation of net primary production in agroecosystems in the Heihe River Basin, China[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2022,335:11. |
| APA | Liu, Yaqun,&Song, Wei.(2022).Mapping human appropriation of net primary production in agroecosystems in the Heihe River Basin, China.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,335,11. |
| MLA | Liu, Yaqun,et al."Mapping human appropriation of net primary production in agroecosystems in the Heihe River Basin, China".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 335(2022):11. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。