Atmospheric deposition — Cropland nitrogen per unit area in Tonga
Tonga: Atmospheric deposition — Cropland nitrogen per unit area was 1.82 kg/ha in 2023. ▬ Flat
Atmospheric deposition — 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 1.82 kg/ha for atmospheric deposition — cropland nitrogen per unit area in 2023.
Compared with earlier readings it is up 2.1% over ten years.
Over the whole period, atmospheric deposition — cropland nitrogen per unit area in Tonga peaked at 2.12 kg/ha in 1990 and was at its lowest, 1.7 kg/ha, in 2002.
That places Tonga 171st out of 186 countries with data for 2023, putting it in the bottom quarter.
Atmospheric deposition — Cropland nitrogen per unit area in Tonga, year by year
| Year | kg/ha | Change |
|---|---|---|
| 1961 | 1.76 kg/ha | — |
| 1962 | 1.78 kg/ha | +1.1% |
| 1963 | 1.79 kg/ha | +0.7% |
| 1964 | 1.81 kg/ha | +0.9% |
| 1965 | 1.83 kg/ha | +0.9% |
| 1966 | 1.85 kg/ha | +1.0% |
| 1967 | 1.86 kg/ha | +0.7% |
| 1968 | 1.88 kg/ha | +1.0% |
| 1969 | 1.88 kg/ha | +0.4% |
| 1970 | 1.89 kg/ha | +0.5% |
| 1971 | 1.9 kg/ha | +0.4% |
| 1972 | 1.93 kg/ha | +1.4% |
| 1973 | 1.96 kg/ha | +1.9% |
| 1974 | 2 kg/ha | +1.8% |
| 1975 | 1.92 kg/ha | -3.8% |
| 1976 | 1.97 kg/ha | +2.1% |
| 1977 | 1.93 kg/ha | -1.7% |
| 1978 | 1.91 kg/ha | -1.0% |
| 1979 | 1.91 kg/ha | -0.2% |
| 1980 | 1.98 kg/ha | +3.9% |
| 1981 | 1.92 kg/ha | -3.1% |
| 1982 | 1.92 kg/ha | +0.0% |
| 1983 | 1.92 kg/ha | -0.1% |
| 1984 | 1.94 kg/ha | +1.0% |
| 1985 | 1.94 kg/ha | -0.0% |
| 1986 | 1.94 kg/ha | -0.1% |
| 1987 | 1.94 kg/ha | +0.0% |
| 1988 | 1.95 kg/ha | +0.6% |
| 1989 | 1.95 kg/ha | -0.2% |
| 1990 | 2.12 kg/ha | +9.1% |
| 1991 | 1.98 kg/ha | -6.9% |
| 1992 | 1.99 kg/ha | +0.8% |
| 1993 | 2 kg/ha | +0.1% |
| 1994 | 2.01 kg/ha | +0.9% |
| 1995 | 2.02 kg/ha | +0.5% |
| 1996 | 2.05 kg/ha | +1.0% |
| 1997 | 1.92 kg/ha | -5.9% |
| 1998 | 1.94 kg/ha | +0.7% |
| 1999 | 2.11 kg/ha | +8.7% |
| 2000 | 1.81 kg/ha | -14.0% |
| 2001 | 1.76 kg/ha | -2.6% |
| 2002 | 1.7 kg/ha | -3.8% |
| 2003 | 2.03 kg/ha | +20.0% |
| 2004 | 1.74 kg/ha | -14.5% |
| 2005 | 1.72 kg/ha | -1.2% |
| 2006 | 1.93 kg/ha | +12.4% |
| 2007 | 1.81 kg/ha | -6.5% |
| 2008 | 1.71 kg/ha | -5.3% |
| 2009 | 1.84 kg/ha | +7.4% |
| 2010 | 1.81 kg/ha | -1.6% |
| 2011 | 1.91 kg/ha | +5.6% |
| 2012 | 1.75 kg/ha | -8.2% |
| 2013 | 1.78 kg/ha | +1.4% |
| 2014 | 1.82 kg/ha | +2.1% |
| 2015 | 1.81 kg/ha | -0.3% |
| 2016 | 1.81 kg/ha | +0.1% |
| 2017 | 1.83 kg/ha | +0.8% |
| 2018 | 1.81 kg/ha | -1.0% |
| 2019 | 1.81 kg/ha | -0.0% |
| 2020 | 1.81 kg/ha | +0.1% |
| 2021 | 1.81 kg/ha | +0.1% |
| 2022 | 1.82 kg/ha | +0.3% |
| 2023 | 1.82 kg/ha | +0.0% |
Tonga compared with similar countries
- Tonga's 1.82 kg/ha is below the median for upper middle income countries, which is 5.55 kg/ha, 33% of the median. (51 countries reporting)
- Tonga's 1.82 kg/ha is below the median for East Asia & Pacific, which is 1.83 kg/ha, 99% of the median. (23 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 1.83 kg/ha | 1.76 kg/ha | 1.88 kg/ha | 9 |
| 1970s | 1.93 kg/ha | 1.89 kg/ha | 2 kg/ha | 10 |
| 1980s | 1.94 kg/ha | 1.92 kg/ha | 1.98 kg/ha | 10 |
| 1990s | 2.01 kg/ha | 1.92 kg/ha | 2.12 kg/ha | 10 |
| 2000s | 1.81 kg/ha | 1.7 kg/ha | 2.03 kg/ha | 10 |
| 2010s | 1.81 kg/ha | 1.75 kg/ha | 1.91 kg/ha | 10 |
| 2020s | 1.81 kg/ha | 1.81 kg/ha | 1.82 kg/ha | 4 |
Countries ranked near Tonga
- 168 Solomon Islands 2.01 kg/ha compare
- 169 Australia and New Zealand 1.85 kg/ha compare
- 170 Australia 1.83 kg/ha compare
- 171 Cook Islands 1.82 kg/ha compare
- 171 Fiji 1.82 kg/ha compare
- 171 French Polynesia 1.82 kg/ha compare
- 171 Kiribati 1.82 kg/ha compare
- 171 Nauru 1.82 kg/ha compare
- 171 Tuvalu 1.82 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 atmospheric deposition — cropland nitrogen per unit area in Tonga?
- Atmospheric deposition — cropland nitrogen per unit area in Tonga was 1.82 kg/ha in 2023, according to Food and Agriculture Organization of the United Nations.
- What is the highest atmospheric deposition — cropland nitrogen per unit area recorded in Tonga?
- The highest recorded value was 2.12 kg/ha in 1990.
- What is the lowest atmospheric deposition — cropland nitrogen per unit area recorded in Tonga?
- The lowest recorded value was 1.7 kg/ha in 2002.
- How does Tonga rank for atmospheric deposition — cropland nitrogen per unit area?
- Tonga ranks 171st out of 186 countries with data for 2023.
- Is atmospheric deposition — cropland nitrogen per unit area rising or falling in Tonga?
- Over the last ten years it is up 2.1%. The long-run trend across the full record is flat.
- Where does this Tonga data come from?
- The figures come from Food and Agriculture Organization of the United Nations, published as part of Atmospheric deposition — 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 (%).