As I mentioned, planting crops that require less water and using more efficient irrigation techniques are probably the best way to do that.

一方面，当地种植的作物可选用节水品种，另一方面，要推广高效率的灌溉技术。

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This paper advances an economic evaluation method to prove the economic rationalization for renewal of irrigation techniques and determine the proper time for the renewal.

本文提出了灌溉技术更新的经济评价方法，用于论证技术更新的经济合理性，并确定适宜的更新时间。

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For 40 years, Dr. Hillel has worked to solve this problem by bringing his micro-irrigation techniques to the driest and least hospitable growing climates on earth, from Israel to Pakistan to Sudan.

40年来，希勒尔博士一直在努力解决这个问题，把他的微灌技术应用到地球上最干燥和最不适合作物生长的气候带，从以色列到巴基斯坦到苏丹。

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At least part of the answer may come from new small-scale irrigation techniques.

CNN: The driest season: Global drought causes major worries

Small price rises for water have led to more rational planting, and to techniques like drip irrigation.

ECONOMIST: California's economy

Corn producers who already had irrigation systems and were using more advanced techniques, notably in the north of the country, have increased their production.

ECONOMIST: The problems of plugging a square economy into a round world