Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019WR025855 |
Do Satellite Surface Soil Moisture Observations Better Retain Information About Crop-Yield Variability in Drought Conditions? | |
Modanesi, S.1; Massari, C.1; Camici, S.1; Brocca, L.1; Amarnath, G.2 | |
2020-02-01 | |
发表期刊 | WATER RESOURCES RESEARCH
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ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2020 |
卷号 | 56期号:2 |
文章类型 | Article |
语种 | 英语 |
国家 | Italy; Sri Lanka |
英文摘要 | Soil moisture is a highly suitable indicator for assessing agricultural drought, as plants start to wilt when there is not sufficient soil water to meet evapotranspiration demand. In this study, we provide insights on information obtained from satellite surface soil moisture observations (as compared to modeled soil moisture and observed ground precipitation) on water stress and its impact on crop production variability in India. The analysis involved generating a Standardized Soil Moisture Index using (1) satellite soil moisture observations from the European Space Agency Climate Change Initiative and (2) the Modern-Era Retrospective Analysis for Research and Applications, version 2 soil moisture data set as well as producing a Standardized Precipitation Index using ground-based rainfall observations from the Indian Meteorological Department. Spanning the period from 1998 to 2015, the study covers Maharashtra and Karnataka states. These states were recently hit by a severe drought, resulting in significant crop failure and human losses. Results show that soil moisture is an important limiting factor for crop production. As such, it is more suitable for representing agricultural drought than precipitation during drought conditions, as it correlates more closely with reduced crop yields. Additionally, using the satellite-based Standardized Soil Moisture Index seemed to explain crop yield reductions better than when we applied the model-based Standardized Soil Moisture Index from Modern-Era Retrospective Analysis for Research and Applications, version 2, particularly for irrigated crops (i.e., wheat). This preliminary study can underpin future crop-forecasting tools assimilating satellite soil moisture data. In practice, satellite soil moisture may help to improve the efficiency of agricultural and irrigation management practices. |
英文关键词 | soil moisture remote sensing drought agriculture India |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000535672800043 |
WOS关键词 | AGRICULTURAL DROUGHT ; INDEX ; SCATTEROMETER ; IRRIGATION ; FRAMEWORK |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/280502 |
专题 | 资源环境科学 |
作者单位 | 1.CNR, Res Inst Geohydrol Protect, Perugia, Italy; 2.Int Water Management Inst, Battaramulla, Sri Lanka |
推荐引用方式 GB/T 7714 | Modanesi, S.,Massari, C.,Camici, S.,et al. Do Satellite Surface Soil Moisture Observations Better Retain Information About Crop-Yield Variability in Drought Conditions?[J]. WATER RESOURCES RESEARCH,2020,56(2). |
APA | Modanesi, S.,Massari, C.,Camici, S.,Brocca, L.,&Amarnath, G..(2020).Do Satellite Surface Soil Moisture Observations Better Retain Information About Crop-Yield Variability in Drought Conditions?.WATER RESOURCES RESEARCH,56(2). |
MLA | Modanesi, S.,et al."Do Satellite Surface Soil Moisture Observations Better Retain Information About Crop-Yield Variability in Drought Conditions?".WATER RESOURCES RESEARCH 56.2(2020). |
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