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目前,我国旱地面积约占全国耕地面积的四分之三,其中有灌溉条件的旱地(水浇地)占22.6%,没有灌溉条件的旱地占51.9%。这些地区发展农业的主要限制因素是缺水、
At present, China’s dry land area accounts for about three-fourths of the country’s total cultivated land area. Among them, dry land (irrigated land) with irrigation conditions accounts for 22.6% and dry land without irrigation conditions accounts for 51.9%. The main limiting factor for the development of agriculture in these areas is water shortages,