Research has found that at least seven species of natural plants in wetlands need to be protected because they are able to clean and remove heavy metals (pollutants) from wetlands water and soil.
The findings also indicate that the plants were found to have the capability to fix nutrients in soil and can be turned into organic manure that has the same fertile capacity as that of manufactured fertilisers.
...
AllAfrica Subscription Content
You must be an allAfrica.com subscriber for full access to certain content.
You have selected an article from the AllAfrica archive, which requires a subscription. You can subscribe by visiting our subscription page. Or for more information about becoming a subscriber, you can read our subscription and contribution overview.
For information about our premium subscription services:
You can also freely access - without a subscription - hundreds of today's top Africa stories and thousands of recent news articles from our home page »
Already a subscriber? Sign in for full access to article