水保所知识产出(1956---)知识库

With 80% water resources in the south and 65% arable land in the north, China is facing a rigorous challenge due
to the spatial mismatch between water distribution and food & energy production to make a balanced develop-
ment of economy and ecosystem. In the past decades, the northwest has playeda prominent role in maintaining
national food and energysecurity.However, thelack of waterresourcesinthis region poses a great threat to sus-
tainable development. Based on this, this study quantitatively analyzed the evolution trend of water footprint
(WF) of major crops and energy products in Northwest China from 2000 to 2015 and revealed the virtual
water(VW)transferpatternwithcommoditytradeanditswaterresourcestresscausedbythevirtualwaterout-
put.Theresultsshowthat,althoughtheimprovementoftechnologyhasgreatlyreducedtheWFperunitproduc-
tion, the northwest region is still a net VW output area, whose net VW output associated with food and energy
trade is increasing sharply from 287.2 × 10 8 m 3 (2000) to 328.5 × 10 8 m 3 (2015) with a growth rate of 14.4%,
seriouslyaggravatingthelocalwaterresourcepressure.Toensurethewater,foodandenergysafetyofthenorth-
west, we proposed countermeasures and suggestions on technological development and strategic planning, in-
cluding water-saving technology promotion, industrial and agricultural structure optimization, and the
coordinated management of physical and virtual water. The above findings provide a scientific reference to en-
sure the sustainable development of Northwest China.