Home-garden-system is an ecosystem of different kind and a common feature of most suburban landscape in many rice farming tropical countries. If these kinds of ecosystems are well maintained, well-developed and used most sustainably; they can contribute a lot to the conservation of biological diversity by lessening the destructive use of the few nature reserves and forest ecosystems remaining.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/home-garden-system-practical-alternative-protected-areas
[2] http://admin.indiaenvironmentportal.org.in/category/author/laishangbam-sanjit
[3] http://admin.indiaenvironmentportal.org.in/category/journal/himalayan-journal-environment-and-zoology
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/home-gardens
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ecosystems
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/protected-area-conservation
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/biodiversity
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/biodiversity-conservation
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/manipur
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/north-east