Physical Indicators


This set of reports synthesizes the change in the physical parameters experienced by the study basins when implementing a Nature-based Solution as part of the analysis.
financial indicators
Financial Indicators
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Case study
City:
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Country:
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Region:
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Time frame (years):
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Quantity of water intakes considered in analysis:
Quantity of DWTP in analysis:
Currency:
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Discount rate (%):
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This report allows you to obtain an integrated view of the outcomes that may be caused in each basin by the implementation of the selected NbS:


Water intake
physical indicators

The bar graph shows the result for the last year.


Year Change in volume of water yield Change in base flow Change in total sediments Change in nitrogen load Change in phosphorus load Change in carbon storage

This report aims to enable decision-makers to assess the trade-offs that can be achieved and to identify water basins where investment in natural capital can enhance human development and conservation.

physical-01

Change in base volumen: Do changes in the landscape affect the annual average water yield?

physical-02

Change in base flow: Do landscape changes affect basin runoff and recharge? The value presented depends on the connectivity and land use and land cover components, so that the recharge is influenced by variables such as vegetation cover and connectivity.

physical-03

Change in total sediments: Do you see changes in the amount of sediment runoff from the basin? Significant changes will result inerosion and water quality impacts.

physical-04

Change in total Nitrogen & Change in total Phosphorous: With this analysis you can assess the nutrient retention service by natural vegetation. It also allows you to identify potential treatment costs or improve water safety through access to clean water

physical-05

Change in Carbon storage: Are you seeing changes in carbon storage? Carbon storage in a land parcel(pixel) depends on four carbon pools: aboveground biomass, underground biomass, soil, and dead organic matter.


In this section we leverage the the Aqueduct tool to analyze water quality and quantity risks for thecase studyareas so that you identify areas that require more attention.

Aqueduct is a platform that compiles results in hydrological modeling, remote sensing data, and other datasets.



Aqueduct indicator:
Water Intake:

Physical risk quantity

Baseline water stress measures the ratio of total water withdrawals to available renewable surface and groundwater supplies. Higher values indicate more competition between users.

Baseline water depletion measures the total water consumption of available renewable water supplies. Higher values indicate a greater impact on the local water supply and decreased water availability for downstream users.

Interannual variability measures the average between-yearvariabilityof available water supply, including both renewable surface and groundwater supplies. Higher values indicate wider variations in available supply from year to year.

Seasonal variability measures the average within-year variability of available water supply, including renewable surface and ground watersupplies. Higher values indicate wider variations in the supply available within a year.

Water table decline measures the average water table decline as the average change for the study period (1990-2014). The result is expressed in centimeters per year (cm / year). Higher values indicate higher levels of unsustainable groundwater.

River flood risk measures the percentage of the population expected to be affected by river flooding in an average year, taking into account existing flood protection standards. Higher values indicate that, on average, a greater proportion of the population is expected to be affected by river flooding.

Regulatory and reputational

Unimproved / no drinking water reflects the percentage of the population that collects drinking water from an unprotected dugwell or spring,or directly from a river, dam, lake, pond, stream, canal or irrigation canal (WHO and UNICEF 2017). Higher values indicate areas where people have less access to clean water supplies.

Physical risk quality

Untreated connected wastewater measures the percentage of domestic wastewater that is connected through a sewer system and is not treated to at least a primary treatment level. Discharging wastewater without adequate treatment could expose water bodies, the general public, and ecosystems to pollutants such as pathogens and nutrients. Higher values indicate higher percentages of point source wastewater discharged without treatment.

In this section you can get a view of activity implementation costs per hectare and quantify the distribution of the types of activities. Select the water basin of interest to see details:

conservance
NbS portfolio size as a percent to total area
Intervention
Watershed information
NbS Activity Total cost Recommended intervention (Ha)

This section presents the behavior of ecosystem services for the period of analysis. You will be able to visualize how these variables behave in the Business as Usual Scenarios - BaU versus the Nature-based solutions scenario - NbS over time.



Select the basin for which you want to see the comparative graph of the different services.

Water intake
Business as usual scenario vs NbS scenario

Annual Water Yield (m3)
Annual Base Flow Volumen (m3)
Annual Total Sediment Load (Ton)
Annual Nitrogen Load (Kg)
Annual Phosphorus Load (Kg)
Carbon (Ton)
Annual Water Yield (m3)
BAU
Year Annual Water Yield (m3)
NBS
Year Annual Water Yield (m3)
Annual Base Flow Volumen (m3)
BAU
Year Annual Base Flow Volumen (m3)
NBS
Year Annual Base Flow Volumen (m3)
Annual Total Sediment Load (Ton)
BAU
Year Annual Total Sediment Load (Ton)
NBS
Year Annual Total Sediment Load (Ton)
Annual Nitrogen Load (Kg)
BAU
Year Annual Nitrogen Load (Kg)
NBS
Year Annual Nitrogen Load (Kg)
Annual Phosphorus Load (Kg)
BAU
Year Annual Phosphorus Load (Kg)
NBS
Year Annual Phosphorus Load (Kg)
Carbon (Ton)
BAU
Year Carbon (Ton)
NBS
Year Carbon (Ton)
physical indicators
Physical indicators