谈旱作水稻的发展与前景我国淡水资源按人口平均占有量不足２７００立方米，居世界第８８位，加之我国水、土资源组合不平衡，北方地多水少，更加重了水资源供求矛盾。以辽宁为例，人均占有水量只有９７０立方米，三北（东北、西北、华北）已成为水资源贫缺地区。自７０年... Talking about the Development and Prospects of Upland Rice The average population of freshwater resources in our country is less than 2,700 cubic meters per capita, ranking the 88th in the world. Combined with the unbalanced water and land resources in our country, there is little water in the north, which aggravates the contradiction between supply and demand of water resources . Taking Liaoning as an example, the per capita amount of water is only 970 cubic meters. Three North (Northeast, Northwest and North China) areas have become scarce water resources. Since 70 years ...