Your search found 3 records
1 He, Q.; Mankin, K. R. 2002. Performance variations of COD and nitrogen removal by vegetated submerged bed wetlands. Journal of the American Water Resources Association, 38(6):1679-1689.
(Location: IWMI-HQ Call no: PER Record No: H033521)
2 Chun, K. P.; He, Q.; Fok, H. S.; Ghosh, S.; Yetemen, O.; Chen, Q.; Mijic, A. 2020. Gravimetry-based water storage shifting over the China-India border area controlled by regional climate variability. Science of The Total Environment, 714:136360. [doi: https://doi.org/10.1016/j.scitotenv.2019.136360]
Water storage ; Climate change ; Precipitation ; Drought ; Temperature ; Monsoon climate ; Water depletion ; Satellite observation ; Gravimetry / China / India / Indus River / Ganges River / Brahmaputra River
(Location: IWMI HQ Call no: e-copy only Record No: H049784)
(1.73 MB)
The regional water storage shifting causes nonstationary spatial distribution of droughts and flooding, leading to water management challenges, environmental degradation and economic losses. The regional water storage shifting is becoming evident due to the increasing climate variability. However, the previous studies for climate drivers behind the water storage shifting are not rigorously quantified. In this study, the terrestrial water storage (TWS) spatial shifting pattern during 2002–2017 over the China-India border area (CIBA) is developed using the Gravity Recovery and Climate Experiment (GRACE), suggesting that the Indus-Ganges-Brahmaputra basin (IGBB) was wetting while the central Qinghai-Tibet Plateau (QTP) was drying. Similar drying and wetting patterns were also found in the precipitation, snow depth, Palmer Drought Severity Index (PDSI) and potential evaporation data. Based on our newly proposed Indian monsoon (IM) and western North Pacific monsoon (WNPM) variation indices, the water shifting pattern over the CIBA was found to be affected by the weakening of the variation of IM and WNPM through modulating the regional atmospheric circulation. The weakening of IM and WNPM variations has shown to be attributed to the decreasing temperature gradient between the CIBA and the Indian Ocean, and possibly related to increasing regional temperatures associated with the increasing global temperature. As the global warming intensifies, it is expected that the regional TWS shifting pattern over the CIBA will be further exaggerated, stressing the need of advancing water resources management for local communities in the region.
3 He, Q.; Liu, De L.; Wang, B.; Wang, Z.; Cowie, A.; Simmons, A.; Xu, Z.; Li, L.; Shi, Y.; Liu, K.; Harrison, M. T.; Waters, C.; Huete, A.; Yu, Q. 2024. A food-energy-water-carbon nexus framework informs region-specific optimal strategies for agricultural sustainability. Resources, Conservation and Recycling, 203:107428. (Online first) [doi: https://doi.org/10.1016/j.resconrec.2024.107428]
Sustainable agriculture ; Strategies ; Nexus approaches ; Carbon footprint ; Carbon sequestration ; Water use ; Energy ; Food production ; Greenhouse gas emissions ; Profitability ; Cover plants ; Cropping systems ; Crop production ; Cash crops ; Sorghum ; Wheat ; Chickpeas ; Crop rotation ; Crop yield ; Water footprint ; Rainfall / Australia / New South Wales
(Location: IWMI HQ Call no: e-copy only Record No: H052623)
(7.12 MB)
Agricultural sustainability is threatened by pressures from water scarcity, energy crises, escalating greenhouse gas (GHG) emissions, and diminishing farm profitability. Practices that diversify crop rotations, retain crop residues, and incorporate cover crops have been widely studied for their impacts on soil organic carbon and crop production. However, their associated usage of natural resources and economic returns have been overlooked. Here, we employed a food-energy-water-carbon (FEWC) nexus framework to assess the sustainability of crop rotations plus various management strategies across three sub-regions of New South Wales (NSW) in Australia. We found that compared with residue burning and fallowing, residue retention and cover cropping contributed to GHG abatement, but the latter consumed more energy and water per hectare. The composite sustainability scores, calculated with the FEWC framework, suggested that legume-inclusive rotations were generally more sustainable. Furthermore, in northern NSW (with existing sorghum/wheat/chickpea/wheat rotation), residue retention with cover cropping was most suitable combination, while the use of residue retention with fallow yielded greater benefits in southern NSW (with existing wheat/field pea/wheat/canola rotation). Regional disparities in climate, soil, cropping systems, and on-farm costs prompted region-specific strategies to address the unbalanced distribution among FEWC domains. Our study provides assessments for identifying feasible management practices to advance agricultural sustainability.
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