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Environment - Water, Marine Resources and Biodiversity

Environment - Water, Marine Resources and Biodiversity

CSO statistical publication, , 11am
A CSO Frontier Series Output

This publication is categorised as a CSO Frontier Series Output. Particular care must be taken when interpreting the statistics in this release as it may use new methods which are under development and/or data sources which may be incomplete, for example new administrative data sources.

Introduction

This chapter contains tables on water, marine resources and biodiversity. Economic activity can directly impact Ireland's biodiversity 'wellbeing' - for example in terms of land and water usage. The aspects of biodiversity examined in this chapter show us that:

  • Level of water stress is higher due to increased water usage.
  • Rivers assessed as being of 'high' or 'good' quality remain below the levels reached in 1987-2000.
  • Areas under forestry have increased in recent years, but wetlands account for less land area than the period 1990-2006. Forestry and wetlands are required to increase significantly by 2030, to increase carbon sequestration and reduce emissions under the Climate Action plan.

Level of water stress was 8.3% in 2021, slightly up from 2020

The level of water stress reflects the level of total freshwater withdrawn by all major sectors after taking into account environmental water requirements. Major sectors include agriculture, forestry and fishing, manufacturing, electricity generation, industry and services. Ireland's level of water stress increased to 8.3% in 2021 up from 8.1% in 2020 due to increasing demand. See Figure 4.1 and Table 4.1.

YearLevel of water stress
20188
20198.1
20208.1
20218.3
Table 4.1 - Water stress, 2018-2021

Over half of Ireland's rivers had good ambient water quality in 2021

The quality of untreated water in rivers, lakes and groundwaters is impacted by a combination of environmental, human, agricultural and industrial activities. In the period 2015-2021, 52% of Ireland's rivers and lakes were deemed to have good water quality, this is a decline of 8 percentage points from 60% recorded in the period 2010-2012. See Table 4.2.

Table 4.2 - Proportion of rivers with good ambient water quality, 2007-2021

In 2021, 55% of rivers were classified as being of 'good' or 'high' quality

Rivers are an important natural resource that provide support for many species and habitats. In addition they are a source of clean water for domestic, agricultural and industrial use. The percentage of rivers and streams with good or high water quality decreased from 61% over the period 1987-1990 to 55% in 2021. See Figure 4.2 and Table 4.3.

YearHigh/GoodModeratePoor
1987-199060.563886500429914.703353396388620.8082545141874
1991-199457.130620985010718.758029978586721.9700214132762
1995-199755.531358885017419.250871080139422.6045296167247
1998-200056.686798964624720.793787748058720.4486626402071
2001-200356.228373702422122.145328719723219.636678200692
2004-200658.351600175361723.542306006137716.5278386672512
2007-200960.871580899397322.855818266110315.3917477978674
2010-201262.70365477763122.016732716864814.8392778511669
2013-201559.29778933680123.40702210663217.0784568703945
2016-201855.910267471958625.798101811906817.9896462467645
2019-202155.555555555555627.650551314673516.7514843087362
Table 4.3 - River water quality, 1987-2021

Grassland accounted for over half of total land use in 2021

The area under forest increased from 7% in 1990 to 11% in 2021, while wetlands declined from 19% in 1990 to 17% in 2021. See Table 4.4.

Table 4.4 - Land use categories, 1990-2021

There are 923,000 hectares of Natura 2000 sites in 2020

Natura 2000 sites consist of both Special Protected Areas (SPA’s) under the EU Birds Directive and Special Areas of Conservation (SAC’s) under the EU Habitats Directive. The area designated as Natura 2000 sites did not change over the 2011-2020 period and remains at 923,000 hectares Currently, around 14% of terrestrial area of  is designated as protected. The EU Biodiversity Strategy has set a target of reaching 30% protected area coverage at the EU level by 2030. See Table 4.5.

Table 4.5 - Natura 2000 sites, 2011-2020

Only 6% of Irish land was designated as terrestrial special protected areas in 2021

Ireland, at 6% in 2021, had the fourth lowest proportion of total land area among the 27 EU member states designated as terrestrial Special Protected Areas (SPA’s) under the EU Birds Directive. Croatia at 30% had the highest proportion of total land classified as SPA’s in 2021 and Malta, at 5%, the lowest. See Figure 4.3.

CountryTotal land area
Croatia30.1821596909664
Cyprus26.9002789400279
Slovakia26.7307143148533
Slovenia24.9962994029703
Bulgaria23.0724183289187
Greece21.0269189402087
Spain20.2048290159946
Luxembourg16.1078998073218
Romania15.5716557102643
Poland15.5301864532841
Hungary14.7796544569039
Estonia13.6853020341526
Italy13.4174823174018
Netherlands12.7376273361675
Austria12.3153530925379
Germany11.259794956122
Belgium10.3988000130433
Latvia10.2282228346701
Portugal10.0078356259795
Czechia8.91928899257043
Lithuania8.52863680488143
France8.03044435052538
Finland7.27157995775403
Ireland6.16475566865868
Denmark6.03470243473023
Sweden5.88613308784616
Malta5.07936507936508

In 2021, Ireland had 10% of its total land area designated as terrestrial Special Areas of Conservation

In 2021, Ireland had 10% of its total land area designated as terrestrial Special Areas of Conservation (SAC’s) under the EU Habitats Directive. This was the sixth lowest rate in the EU27. Slovenia had 33% of its total land area designated as SAC’s, the highest in the EU. Denmark, at 7%, had the lowest. See Figure 4.4.

CountryTotal land area
Slovenia32.7330142596339
Bulgaria30.3331711624052
Croatia28.4473898713542
Spain23.3873470057294
Estonia17.2219035432202
Portugal17.0435747866969
Romania16.9107560127366
Cyprus16.7364016736402
Greece16.5967309469347
Luxembourg16.0308285163776
Hungary15.5268618365175
Italy14.3110939589724
Malta13.015873015873
Sweden12.7293103678305
Slovakia12.5464039489251
Finland12.5022589446803
Latvia11.4901062149692
Austria11.1717335366435
Poland10.9980508322433
Belgium10.7085792545733
Lithuania10.6103329789365
Ireland10.2393274811998
Czechia10.0869741613206
Germany9.38246332309792
France8.92818106300188
Netherlands8.40886607309965
Denmark7.36210531192809