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- Hock, R, et al.
(författare)
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High Mountain Areas
- 2019
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Ingår i: IPCC Special Report on the Ocean and Cryosphere in a Changing Climate. - : IPCC - Intergovernmental Panel on Climate Change. ; , s. 131-202
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Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
- The cryosphere (including, snow, glaciers, permafrost, lake and river ice) is an integral element of high- mountain regions, which are home to roughly 10% of the global population. Widespread cryosphere changes affect physical, biological and human systems in the mountains and surrounding lowlands, with impacts evident even in the ocean. Building on the IPCC’s Fifth Assessment Report (AR5), this chapter assesses new evidence on observed recent and projected changes in the mountain cryosphere as well as associated impacts, risks and adaptation measures related to natural and human systems. Impacts in response to climate changes independently of changes in the cryosphere are not assessed in this chapter. Polar mountains are included in Chapter 3, except those in Alaska and adjacent Yukon, Iceland, and Scandinavia, which are included in this chapter.
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| 4. |
- Hashemi, Hossein, et al.
(författare)
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Using Floodwater for Artificial Recharge and Spate Irrigation
- 2017
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Ingår i: Sustainable Water Resources Management. - Reston, VA : American Society of Civil Engineers. - 9780784414767 - 9780784480908 ; , s. 697-736
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Bokkapitel (refereegranskat)abstract
- Floodwater harvesting (FWH) for artificial recharge of groundwater (ARG) and spate irrigation (SI) is the most widely practiced large catchment water harvesting technique. It has recently received renewed attention for research, improvement, and implementation. This chapter first introduces an innovative, locally adaptive, and improved FWH technique—floodwater spreading systems (FWS)—to guide policymakers and practitioners in the management of groundwater (GW) resources and efficient rain-fed agriculture in water scarce countries. This is done by evaluating the effects of a large-scale FWH system on a local aquifer. The chapter assesses the contribution of FWH to GW recharge and improved agricultural yield by introducing SI technique through FWH. In line with the GW modeling and recharge estimation, a three-year field study to investigate improved rain-fed agricultural yield in a FWS system using the SI technique is explained. Barley was tested as an indicator plant for crop yield.
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| 7. |
- Xie, Y., et al.
(författare)
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Inland Waterborne Commerce Study Based on Variance Decomposition and Cross-Spectral Analysis
- 2021
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Ingår i: Lecture Notes on Data Engineering and Communications Technologies. - Cham : Springer Nature. ; , s. 13-22
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Bokkapitel (refereegranskat)abstract
- Much research has focused on the prediction field; however, few are concerned about the detail between forecasting and influence factors. It is an important area to help decision-makers decide in time. River and relevant factors were studied utilizing variance decomposition and cross-spectral analysis. The results show that there is an inflection point between the shipping volume and the related variables. After passing a high-speed development period, the inland shipping volume will enter a stable period of fluctuation, and the correlation with other variables will gradually decrease. The amplitude spectrum verifies the degree of influence; the cross-spectral analyzed each variable is driving relationship; the phase spectrum shows the shipping volume and the time required for effecting.
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