Volatilisation — Cropland nitrogen per unit area in Tonga
Tonga: Volatilisation — Cropland nitrogen per unit area was 7.34 kg/ha in 2023. ▲ Rising
Volatilisation — Cropland nitrogen per unit area in Tonga, 1961–2023
Source: Food and Agriculture Organization of the United Nations. Measured in kg/ha.
Analysis
Tonga recorded 7.34 kg/ha for volatilisation — cropland nitrogen per unit area in 2023.
That represents a change of up 1.3% on the previous year and down 5.3% over ten years.
Over the whole period, volatilisation — cropland nitrogen per unit area in Tonga peaked at 9.37 kg/ha in 1988 and was at its lowest, 1.64 kg/ha, in 1961.
That places Tonga 136th out of 186 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.
Volatilisation — Cropland nitrogen per unit area in Tonga, year by year
| Year | kg/ha | Change |
|---|---|---|
| 1961 | 1.64 kg/ha | — |
| 1962 | 2.23 kg/ha | +36.2% |
| 1963 | 2.22 kg/ha | -0.8% |
| 1964 | 2.22 kg/ha | +0.2% |
| 1965 | 2.26 kg/ha | +1.8% |
| 1966 | 2.74 kg/ha | +21.0% |
| 1967 | 2.48 kg/ha | -9.4% |
| 1968 | 2.67 kg/ha | +7.6% |
| 1969 | 2.53 kg/ha | -5.3% |
| 1970 | 2.72 kg/ha | +7.5% |
| 1971 | 2.45 kg/ha | -9.9% |
| 1972 | 2.31 kg/ha | -5.7% |
| 1973 | 2.81 kg/ha | +21.8% |
| 1974 | 3.29 kg/ha | +17.1% |
| 1975 | 3.78 kg/ha | +15.0% |
| 1976 | 5.01 kg/ha | +32.5% |
| 1977 | 5.77 kg/ha | +15.1% |
| 1978 | 7.26 kg/ha | +25.9% |
| 1979 | 7.26 kg/ha | +0.0% |
| 1980 | 7.1 kg/ha | -2.2% |
| 1981 | 8.44 kg/ha | +18.8% |
| 1982 | 8.22 kg/ha | -2.6% |
| 1983 | 7.17 kg/ha | -12.7% |
| 1984 | 6.04 kg/ha | -15.8% |
| 1985 | 7.61 kg/ha | +26.1% |
| 1986 | 7.21 kg/ha | -5.4% |
| 1987 | 8.27 kg/ha | +14.8% |
| 1988 | 9.37 kg/ha | +13.2% |
| 1989 | 7.73 kg/ha | -17.5% |
| 1990 | 7.42 kg/ha | -4.0% |
| 1991 | 7.41 kg/ha | -0.1% |
| 1992 | 7.45 kg/ha | +0.6% |
| 1993 | 7.44 kg/ha | -0.2% |
| 1994 | 7.21 kg/ha | -3.1% |
| 1995 | 6.56 kg/ha | -9.0% |
| 1996 | 6.71 kg/ha | +2.3% |
| 1997 | 7.2 kg/ha | +7.3% |
| 1998 | 7.2 kg/ha | +0.0% |
| 1999 | 7.23 kg/ha | +0.5% |
| 2000 | 7.55 kg/ha | +4.4% |
| 2001 | 7.55 kg/ha | -0.0% |
| 2002 | 7.55 kg/ha | +0.0% |
| 2003 | 7.55 kg/ha | +0.0% |
| 2004 | 7.55 kg/ha | +0.0% |
| 2005 | 7.55 kg/ha | +0.0% |
| 2006 | 7.27 kg/ha | -3.7% |
| 2007 | 7.43 kg/ha | +2.1% |
| 2008 | 8.6 kg/ha | +15.8% |
| 2009 | 8.29 kg/ha | -3.6% |
| 2010 | 7.25 kg/ha | -12.5% |
| 2011 | 7.2 kg/ha | -0.7% |
| 2012 | 7.51 kg/ha | +4.3% |
| 2013 | 7.75 kg/ha | +3.2% |
| 2014 | 7.24 kg/ha | -6.6% |
| 2015 | 7.13 kg/ha | -1.6% |
| 2016 | 7.51 kg/ha | +5.4% |
| 2017 | 7.73 kg/ha | +2.9% |
| 2018 | 7.27 kg/ha | -6.0% |
| 2019 | 7.5 kg/ha | +3.1% |
| 2020 | 7.48 kg/ha | -0.3% |
| 2021 | 7.61 kg/ha | +1.8% |
| 2022 | 7.25 kg/ha | -4.8% |
| 2023 | 7.34 kg/ha | +1.3% |
Tonga compared with similar countries
- Tonga's 7.34 kg/ha is below the median for upper middle income countries, which is 18.91 kg/ha, 39% of the median. (51 countries reporting)
- Tonga's 7.34 kg/ha is below the median for East Asia & Pacific, which is 17.79 kg/ha, 41% of the median. (23 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 2.33 kg/ha | 1.64 kg/ha | 2.74 kg/ha | 9 |
| 1970s | 4.27 kg/ha | 2.31 kg/ha | 7.26 kg/ha | 10 |
| 1980s | 7.72 kg/ha | 6.04 kg/ha | 9.37 kg/ha | 10 |
| 1990s | 7.18 kg/ha | 6.56 kg/ha | 7.45 kg/ha | 10 |
| 2000s | 7.69 kg/ha | 7.27 kg/ha | 8.6 kg/ha | 10 |
| 2010s | 7.41 kg/ha | 7.13 kg/ha | 7.75 kg/ha | 10 |
| 2020s | 7.42 kg/ha | 7.25 kg/ha | 7.61 kg/ha | 4 |
Countries ranked near Tonga
- 133 Russian Federation 8.17 kg/ha compare
- 134 Myanmar 8.1 kg/ha compare
- 135 Mauritania 7.58 kg/ha compare
- 137 South Sudan 6.98 kg/ha compare
- 138 Bhutan 6.73 kg/ha compare
- 139 Samoa 6.34 kg/ha compare
More environment data for Tonga
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.234 °C (2025)
- Temperature change 0.858 °C (2025)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), annual 3.06 % change on previous year (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), per unit 0 Mt CO2e per US$ of GDP (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), per capita 0 Mt CO2e per person (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), annual growth rate 0.1689 % change on previous year (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), per unit of GDP 0 Mt CO2e per US$ of GDP (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), per capita 0 Mt CO2e per person (2024)
- Methane (CH4) emissions from Building (Energy) (Mt CO2e), annual 0 % change on previous year (2024)
Frequently asked questions
- What is volatilisation — cropland nitrogen per unit area in Tonga?
- Volatilisation — cropland nitrogen per unit area in Tonga was 7.34 kg/ha in 2023, according to Food and Agriculture Organization of the United Nations.
- What is the highest volatilisation — cropland nitrogen per unit area recorded in Tonga?
- The highest recorded value was 9.37 kg/ha in 1988.
- What is the lowest volatilisation — cropland nitrogen per unit area recorded in Tonga?
- The lowest recorded value was 1.64 kg/ha in 1961.
- How does Tonga rank for volatilisation — cropland nitrogen per unit area?
- Tonga ranks 136th out of 186 countries with data for 2023.
- Is volatilisation — cropland nitrogen per unit area rising or falling in Tonga?
- Over the last ten years it is down 5.3%. The long-run trend across the full record is rising.
- Where does this Tonga data come from?
- The figures come from Food and Agriculture Organization of the United Nations, published as part of Volatilisation — Cropland nitrogen per unit area. Statizoid updates them automatically from the source API.
Download this data
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About this data
The Cropland Nutrient balance domain contains information on the flows of nitrogen, phosphorus, and potassium from mineral fertilizer, manure applied, atmospheric deposition, crop removal, and biological fixation over cropland and per unit area of cropland. The flows are aggregated to total inputs and total outputs, from which the overall nutrient balance and nutrient use efficiency on cropland are calculated. Statistics are disseminated in units of tonnes and in kg/ha, as appropriate. Nutrient use efficiency is expressed as a fraction (%).