Base on investigations of drought mechanism in Jianghuai watershed of west Anhui province. The authers think that complex natural environment causes frequent drought disaster

imperfect irrigation works

reduces the ability to withstand drought disaster

and current patterning of land use accelerates the damage to crops by drought. In the end

some effective drought countermeasures

which are to enhance the ability to fight drought through tapping new sources of supply and reducing consumption are put forward

to improve ecological environment through building papermaking forestry base

to promote the development of rural economy through readjusting agricultural structure

to speed up industrialization of water resources through reforming managerial system of irrigation works.