What is the main integration in river basin planning in geography?

Correct answer: Coordination of upstream and downstream water use flood and conservation

The direct answer is A: coordinating upstream and downstream water use, flood management and conservation. A river basin is the whole area drained by one river and its tributaries. Water flowing from upper areas affects villages, farms, cities and ecosystems downstream. First, upstream users may store or divert water. Second, this can change the amount and timing of water downstream. Third, heavy rain upstream may create floods below. Fourth, planning must balance irrigation, drinking water, flood control and conservation. Option A is correct because it treats the basin as one connected system and includes both use and protection. Option B, memorising only the river’s name, gives information but does not plan water or solve conflicts. Option C, counting only fish, studies one part of the ecosystem and ignores people, floods and water allocation. Option D, colouring only a map, may help display information but is not integrated basin planning. The exam cue is to think from source to mouth and include both upstream and downstream effects. A basin must be planned holistically, not in isolated pieces.