The moisture content of soil is one important indicator of soil which plays an indispensable action in the production and irrigation of agriculture and research of basal theory.

土壤水分含量是土壤的一项重要指标，它在农业的生产、灌溉以及基础理论研究中具有重要作用。

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The ensuing rapid expansion of irrigation agriculture, especially from the 1950s onward, transformed the economy of the region.

随之而来的灌溉农业的迅速发展，特别是从20世纪50年代以来，改变了该区域的经济。

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But this isn't a long paper, so are you going to need to pick a specific area of pre-modern agriculture, like irrigation or food crops of ancient Greece.

但这不是一篇很长的论文，所以你要选定一个现代以前农业的特定领域，像是灌溉技术，或古希腊的粮食作物。

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He points to the success of micro-irrigation in semi-arid Gujarat, whose agriculture has grown at an average of 9.6% a year since the turn of the century, partly thanks to the creation of 500, 000 small ponds, dams and suchlike.

ECONOMIST: Small projects often give better returns

The former will generate electricity from the runoff of the 25, 000 miles of irrigation canals mostly set up by the British in this agriculture belt.

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Though Egyptian agriculture was (and still is) based on irrigation, the flow of the Nile is controlled ultimately by rainfall patterns at its headwaters.

ECONOMIST: Climate change and civilisation