Chickens: Manure left on pasture … left square kilometre volatilises in Tonga

Tonga: Chickens: Manure left on pasture … left square kilometre volatilises was 1.14 kg per square kilometre in 2023. ▲ Rising

Latest (2023)
1.14 kg per square kilometre
Change on year
up 0.3%
World rank
107th
of 168 countries
All-time high
1.14 kg per square kilometre
in 2023
All-time low
0.1738 kg per square kilometre
in 1973
Years of data
63
1961–2023

Chickens — Manure left on pasture that volatilises (N content), per in Tonga, 1961–2023

0.20.40.60.811.2196119922023

Source: Statizoid (derived). Measured in kg per square kilometre.

Analysis

In 2023, chickens — manure left on pasture that volatilises (n content), per in Tonga stood at 1.14 kg per square kilometre. That is the highest value across all 63 years on record.

That represents a change of up 0.3% on the previous year and up 2.8% over ten years.

Over the whole period, chickens — manure left on pasture that volatilises (n content), per in Tonga peaked at 1.14 kg per square kilometre in 2023 and was at its lowest, 0.1738 kg per square kilometre, in 1973.

That places Tonga 107th out of 168 countries with data for 2023, putting it in the middle of the range.

The long-run direction has been consistently rising across the 63 years of available data.

Chickens: Manure left on pasture … left square kilometre volatilises in Tonga, year by year

Annual values for Chickens — Manure left on pasture that volatilises (N content), per square kilometre in Tonga, 1961 to 2023.
Year kg per square kilometre Change
1961 0.1845 kg per square kilometre —
1962 0.207 kg per square kilometre +12.2%
1963 0.225 kg per square kilometre +8.7%
1964 0.2475 kg per square kilometre +10.0%
1965 0.2655 kg per square kilometre +7.3%
1966 0.3062 kg per square kilometre +15.3%
1967 0.407 kg per square kilometre +32.9%
1968 0.4537 kg per square kilometre +11.5%
1969 0.3859 kg per square kilometre -14.9%
1970 0.3 kg per square kilometre -22.2%
1971 0.2535 kg per square kilometre -15.5%
1972 0.1768 kg per square kilometre -30.2%
1973 0.1738 kg per square kilometre -1.7%
1974 0.2204 kg per square kilometre +26.8%
1975 0.4024 kg per square kilometre +82.6%
1976 0.5032 kg per square kilometre +25.0%
1977 0.3842 kg per square kilometre -23.7%
1978 0.5617 kg per square kilometre +46.2%
1979 0.5405 kg per square kilometre -3.8%
1980 0.5224 kg per square kilometre -3.4%
1981 0.6939 kg per square kilometre +32.8%
1982 0.7299 kg per square kilometre +5.2%
1983 0.4708 kg per square kilometre -35.5%
1984 0.4527 kg per square kilometre -3.8%
1985 0.9163 kg per square kilometre +102.4%
1986 0.9614 kg per square kilometre +4.9%
1987 1.03 kg per square kilometre +6.7%
1988 1.14 kg per square kilometre +11.1%
1989 0.9028 kg per square kilometre -20.8%
1990 0.7057 kg per square kilometre -21.8%
1991 0.6954 kg per square kilometre -1.5%
1992 0.727 kg per square kilometre +4.5%
1993 0.7435 kg per square kilometre +2.3%
1994 0.7435 kg per square kilometre +0.0%
1995 0.9045 kg per square kilometre +21.6%
1996 1.01 kg per square kilometre +12.0%
1997 1.01 kg per square kilometre -0.6%
1998 1.01 kg per square kilometre +0.0%
1999 1.01 kg per square kilometre +0.6%
2000 1.01 kg per square kilometre +0.0%
2001 1.01 kg per square kilometre +0.0%
2002 1.01 kg per square kilometre +0.0%
2003 1.01 kg per square kilometre +0.0%
2004 1.01 kg per square kilometre +0.0%
2005 1.01 kg per square kilometre +0.1%
2006 1.01 kg per square kilometre +0.0%
2007 1.12 kg per square kilometre +10.7%
2008 1.11 kg per square kilometre -1.3%
2009 1.1 kg per square kilometre -0.3%
2010 1.11 kg per square kilometre +0.4%
2011 1.09 kg per square kilometre -1.5%
2012 1.1 kg per square kilometre +1.0%
2013 1.11 kg per square kilometre +0.5%
2014 1.09 kg per square kilometre -1.3%
2015 1.1 kg per square kilometre +0.3%
2016 1.11 kg per square kilometre +1.4%
2017 1.12 kg per square kilometre +0.5%
2018 1.12 kg per square kilometre +0.5%
2019 1.13 kg per square kilometre +0.7%
2020 1.14 kg per square kilometre +0.5%
2021 1.14 kg per square kilometre +0.0%
2022 1.14 kg per square kilometre +0.0%
2023 1.14 kg per square kilometre +0.3%

Tonga compared with similar countries

  • Tonga's 1.14 kg per square kilometre is below the median for upper middle income countries, which is 6.36 kg per square kilometre, 18% of the median. (50 countries reporting)
  • Tonga's 1.14 kg per square kilometre is above the median for East Asia & Pacific, which is 1.14 kg per square kilometre, 1.0× the median. (23 countries reporting)

Biggest year-on-year movements

Years where Chickens: Manure left on pasture … left square kilometre volatilises in Tonga changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.

YearChange FromTo
1985 +102.4% 0.4527 kg per square kilometre 0.9163 kg per square kilometre
1975 +82.6% 0.2204 kg per square kilometre 0.4024 kg per square kilometre
1978 +46.2% 0.3842 kg per square kilometre 0.5617 kg per square kilometre
1983 -35.5% 0.7299 kg per square kilometre 0.4708 kg per square kilometre

Averages by decade

DecadeAverage LowestHighest Years
1960s 0.298 kg per square kilometre 0.1845 kg per square kilometre 0.4537 kg per square kilometre 9
1970s 0.3517 kg per square kilometre 0.1738 kg per square kilometre 0.5617 kg per square kilometre 10
1980s 0.7817 kg per square kilometre 0.4527 kg per square kilometre 1.14 kg per square kilometre 10
1990s 0.8559 kg per square kilometre 0.6954 kg per square kilometre 1.01 kg per square kilometre 10
2000s 1.04 kg per square kilometre 1.01 kg per square kilometre 1.12 kg per square kilometre 10
2010s 1.11 kg per square kilometre 1.09 kg per square kilometre 1.13 kg per square kilometre 10
2020s 1.14 kg per square kilometre 1.14 kg per square kilometre 1.14 kg per square kilometre 4

Countries ranked near Tonga

  1. 104 Libya 1.42 kg per square kilometre compare
  2. 105 Kyrgyzstan 1.39 kg per square kilometre compare
  3. 106 Lesotho 1.17 kg per square kilometre compare
  4. 108 Suriname 1.07 kg per square kilometre compare
  5. 109 Niger 1.06 kg per square kilometre compare
  6. 110 Bhutan 0.9605 kg per square kilometre compare

See the full ranking of 170 places →

More environment data for Tonga

All data for Tonga →

Frequently asked questions

What is chickens — manure left on pasture that volatilises (n content), per in Tonga?
Chickens — manure left on pasture that volatilises (n content), per in Tonga was 1.14 kg per square kilometre in 2023, according to Statizoid (derived).
What is the highest chickens — manure left on pasture that volatilises (n content), per recorded in Tonga?
The highest recorded value was 1.14 kg per square kilometre in 2023.
What is the lowest chickens — manure left on pasture that volatilises (n content), per recorded in Tonga?
The lowest recorded value was 0.1738 kg per square kilometre in 1973.
How does Tonga rank for chickens — manure left on pasture that volatilises (n content), per?
Tonga ranks 107th out of 168 countries with data for 2023.
Is chickens — manure left on pasture that volatilises (n content), per rising or falling in Tonga?
Over the last ten years it is up 2.8%. The long-run trend across the full record is rising.
Where does this Tonga data come from?
The figures come from Statizoid (derived), published as part of Chickens — Manure left on pasture that volatilises (N content), per square kilometre. Statizoid updates them automatically from the source API.

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Chickens — Manure left on pasture that volatilises (N content), per in Tonga. Statizoid, drawing on Statizoid (derived). Retrieved 10 October 2026, from https://environment.statizoid.com/stat/chickens-manure-left-on-pasture-that-volatilises-n-content-per-square-kilometre/tonga/

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<a href="https://environment.statizoid.com/stat/chickens-manure-left-on-pasture-that-volatilises-n-content-per-square-kilometre/tonga/">Chickens — Manure left on pasture that volatilises (N content), per in Tonga</a> — Statizoid

How this figure is calculated

Chickens — Manure left on pasture that volatilises (N content) divided by Land area (sq. km), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.

Chickens — Manure left on pasture that volatilises (N content) ÷ Land area (sq. km)

Computed from

Statizoid computes this series; the underlying measurements belong to the publishers named above. The arithmetic is applied to every country and year where both inputs report, and nothing is estimated unless the page says so.

About this data

Indicator
Chickens — Manure left on pasture that volatilises (N content), per square kilometre
Unit
kg per square kilometre
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
170 places, 9,696 data points, 1961–2023
Last refreshed

Chickens — Manure left on pasture that volatilises (N content) divided by Land area (sq. km), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.