Integrated Wasteland Development Programme (IWDP) is carried out on watershed approach with a theme of land and water resource management for sustainable development of natural resources, environment protection, and improvement of the socio-economic conditions of the resource poor sections on participatory approach. Watershed (the area of operation) may be treated as a geo-hydrological unit (of land) which drains into a common point, which is a river or rivulet in the valley where the run-off water from the ridges drain into. Next, we have wastelands which are degraded forest and non-forest lands. In Mizoram, we mainly have non-forest wasteland which maybe classified as abandoned jhum land/current jhum land.
The National Remote Sensing Agency in its Publication ‘Wastelands Atlas of India’ 2005, has indicated that 21.20 % of the total geographical area of 21,081 Sq.Kms, in Mizoram as wasteland of different categories. This translates into 4469.88 Sq.Kms as total wasteland in Mizoram. Shifting Cultivation (current) forms the main chunk of such wasteland and next comes the abandoned jhum land.