Observed Changes in Crop Yield Associated with Droughts Propagation via Natural and Human-Disturbed Agro-Ecological Zones of Pakistan
文献类型：期刊论文
| 作者 | Saleem, Farhan2,3; Arshad, Arfan4,5; Mirchi, Ali4; Khaliq, Tasneem6; Zeng, Xiaodong2,3,7; Rahman, Md Masudur8; Dilawar, Adil3,9; Pham, Quoc Bao10; Mahmood, Kashif1 |
| 刊名 | REMOTE SENSING
 |
| 出版日期 | 2022-05-01 |
| 卷号 | 14期号:9页码:28 |
| 关键词 | spatiotemporal droughts termination GRACE crop yield sensitivity atmospheric circulation Pakistan |
| DOI | 10.3390/rs14092152 |
| 通讯作者 | Zeng, Xiaodong(xdzeng@mail.iap.ac.cn) |
| 英文摘要 | Pakistan's agriculture and food production account for 27% of its overall gross domestic product (GDP). Despite ongoing advances in technology and crop varieties, an imbalance between water availability and demand, combined with robust shifts in drought propagation has negatively affected the agro-ecosystem and environmental conditions. In this study, we examined hydro-meteorological drought propagation and its associated impacts on crop yield across natural and human-disturbed agro-ecological zones (AEZs) in Pakistan. Multisource datasets (i.e., ground observations, reanalysis, and satellites) were used to characterize the most extensive, intense drought episodes from 1981 to 2018 based on the standardized precipitation evaporation index (SPEI), standardized streamflow index (SSFI), standardized surface water storage index (SSWSI), and standardized groundwater storage index (SGWI). The most common and intense drought episodes characterized by SPEI, SSFI, SSWSI, and SGWI were observed in years 1981-1983, 2000-2003, 2005, and 2018. SPEI yielded the maximum number of drought months (90) followed by SSFI (85), SSWSI (75), and SGWI (35). Droughts were frequently longer and had a slower termination rate in the human-disturbed AEZs (e.g., North Irrigated Plain and South Irrigated Plain) compared to natural zones (e.g., Wet Mountains and Northern Dry Mountains). The historical droughts are likely caused by the anomalous large-scale patterns of geopotential height, near-surface air temperature, total precipitation, and prevailing soil moisture conditions. The negative values (<-2) of standardized drought severity index (DSI) observed during the drought episodes (1988, 2000, and 2002) indicated a decline in vegetation growth and yield of major crops such as sugarcane, maize, wheat, cotton, and rice. A large number of low-yield years (SYRI <= -1.5) were recorded for sugarcane and maize (10 years), followed by rice (9 years), wheat (8 years), and cotton (6 years). Maximum crop yield reductions relative to the historic mean (1981-2017) were recorded in 1983 (38% for cotton), 1985 (51% for maize), 1999 (15% for wheat), 2000 (29% for cotton), 2001 (37% for rice), 2002 (21% for rice), and 2004 (32% for maize). The percentage yield losses associated with shifts in SSFI and SSWSI were greater than those in SPEI, likely due to longer drought termination duration and a slower termination rate in the human-disturbed AEZs. The study's findings will assist policymakers to adopt sustainable agricultural and water management practices, and make climate change adaptation plans to mitigate drought impacts in the study region. |
| WOS关键词 | STANDARDIZED PRECIPITATION INDEX ; TERRESTRIAL WATER STORAGE ; URBAN HEAT-ISLAND ; UPPER INDUS BASIN ; AGRICULTURAL DROUGHT ; METEOROLOGICAL DROUGHT ; GROUNDWATER DEPLETION ; CLIMATE VARIABILITY ; SEASONAL DROUGHT ; GLOBAL PATTERNS |
| 资助项目 | National Natural Science Foundation of China[41991282] ; CAS-TWAS Centre of Excellence for Climate and Environment Sciences |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:000796150200001 |
| 资助机构 | National Natural Science Foundation of China ; CAS-TWAS Centre of Excellence for Climate and Environment Sciences |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/177590]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zeng, Xiaodong |
| 作者单位 | 1.Univ Bonn, Ctr Dev Res ZEF, D-53113 Bonn, Germany 2.Chinese Acad Sci, Inst Atmospher Phys, Int Ctr Climate & Environm Sci, Beijing 100029, Peoples R China 3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 4.Oklahoma State Univ, Dept Biosyst & Agr Engn, Stillwater, OK 74078 USA 5.Univ Agr Faisalabad, Dept Irrigat & Drainage, Fac Agr Engn, Faisalabad 38000, Pakistan 6.Univ Agr Faisalabad, Dept Agron, Agro Climatol Lab, Faisalabad 38000, Pakistan 7.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Nanjing 210044, Peoples R China 8.Pabna Univ Sci Technol, Dept Elect & Elect Engn, Pabna 6600, Bangladesh 9.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100029, Peoples R China 10.Thu Dau Mot Univ, Inst Appl Technol, Thu Dau Mot 820000, Vietnam |
| 推荐引用方式 GB/T 7714 | Saleem, Farhan,Arshad, Arfan,Mirchi, Ali,et al. Observed Changes in Crop Yield Associated with Droughts Propagation via Natural and Human-Disturbed Agro-Ecological Zones of Pakistan[J]. REMOTE SENSING,2022,14(9):28. |
| APA | Saleem, Farhan.,Arshad, Arfan.,Mirchi, Ali.,Khaliq, Tasneem.,Zeng, Xiaodong.,...&Mahmood, Kashif.(2022).Observed Changes in Crop Yield Associated with Droughts Propagation via Natural and Human-Disturbed Agro-Ecological Zones of Pakistan.REMOTE SENSING,14(9),28. |
| MLA | Saleem, Farhan,et al."Observed Changes in Crop Yield Associated with Droughts Propagation via Natural and Human-Disturbed Agro-Ecological Zones of Pakistan".REMOTE SENSING 14.9(2022):28. |
入库方式： OAI收割
来源：地理科学与资源研究所
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