Table 6 Number of studies per type of ecotechnology recovery source across different locations
| Continent | Country | Manure-based | Manure- and crop-based | Crop-based | Other | Total |
|---|---|---|---|---|---|---|
| Asia | China | 7 | 7 | |||
| India | 1 | 1 | ||||
| Japan | 3 | 1 | 4 | |||
| Korea, Republic of | 2 | 1 | 3 | |||
| Pakistan | 1 | 1 | 2 | |||
| Europe | Belgium | 1 | 5 | 5 | 2 | 13 |
| Czech Republic | 1 | 1 | ||||
| Denmark | 4 | 4 | ||||
| Finland | 11 | 4 | 1 | 16 | ||
| France | 3 | 2 | 2 | 7 | ||
| Germany | 2 | 2 | 1 | 5 | ||
| Ireland | 1 | 1 | ||||
| Italy | 3 | 3 | ||||
| Lithuania | 2 | 2 | ||||
| Netherlands | 5 | 3 | 1 | 9 | ||
| Norway | 1 | 1 | ||||
| Poland | 4 | 4 | ||||
| Russia | 2 | 2 | ||||
| Spain | 1 | 1 | ||||
| Sweden | 1 | 2 | 3 | |||
| United Kingdom | 3 | 1 | 4 | |||
| North America | Canada | 8 | 2 | 4 | 14 | |
| United States | 17 | 3 | 9 | 7 | 36 | |
| South America | Argentina | 2 | 2 | |||
| Brazil | 1 | 1 | 1 | 3 | ||
| Chile | 2 | 2 | ||||
| No location stated | 16 | 9 | 2 | 27 | ||