果园种植面积扩大。
经济作物桑、茶、棉花、甘蔗、烟草，种植面积扩大了，当时已经成为商品。
Sang cash crops, tea, cotton, sugar cane, tobacco, planted area expanded, was already become a commodity.
玉米、马铃薯种植面积扩大，春小麦种植面积减小，玉米种植界限向北延伸等与气候变暖的关系密切。
Climate warming was closely interrelated with expanding of planting areas of maize and potato, decreasing of planting areas of spring wheat and the northward extension of maize planting boundary.
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