The problem of plant conservation is serious in arid and semi arid region.

干旱地区物种保护的问题更为突出。

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Water application furrow seeder for arid and semi arid region can carry on the watering operation as sowing and fertilizing with the objective of seedling prevention.

施水沟播机可在起垄施肥播种的同时进行施水作业，从而解决了干旱和半干旱地区的播种保苗问题。

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Runoff collecting irrigation agriculture rapidly rises in the last stage of the eighth five year plan in northwestern arid and semi arid region, and it plays an active role in promoting grain output.

集流灌溉农业是“八五”末期在我国西北干旱、半干旱地区迅速兴起的农业灌溉方式，对该区增产粮食起到积极推动作用。

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One country on the opposite side of Africa where that scenario may already have started to play out is Mali, the third poorest nation in the world, where rainfall levels have been in decline for the past 30 years across the semi-arid Sahel region.

CNN: Climate change 'to create 1B refugees'

Farmers soak up about 85% of the border region's scarce water, and on the semi-arid land on both sides they grow thirsty cash crops like sugar cane.

ECONOMIST: IOU H2O