The prominent rivers of Bihar all originating from Nepal and entering into Bihar, are adversely affected sands-play resulting from flood.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/ecological-effects-sands-play-recent-flood-bihar
[2] http://admin.indiaenvironmentportal.org.in/category/author/suresh-kumar
[3] http://admin.indiaenvironmentportal.org.in/category/author/achintya
[4] http://admin.indiaenvironmentportal.org.in/category/journal/journal-institution-public-health-engineers
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/soil-capability
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/wastelands
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/wasteland-development
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/bagmati
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/floods
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/india
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/bihar