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二、亚热带北部丘陵区、山区和山间盆地区(温暖湿润的) V 汉中山间盆地区盆地位于汉水流域的上游,海拔约为460～600公尺,但是盆地的周围,都是中等的山区。为现代的冲积平原,绵延有古代的阶地,侵蚀成现代的丘陵地形。冲积平原沿汉水约长100公里,宽约10公里,据汉水综合利用规划方案,该区总面积约为100,000公顷,其中耕地约为67,000公顷,有灌溉保证的约为25,000公顷。根据现有灌溉系统的改建和扩建,预订灌溉的耕地面积约为67,000公顷,其中包括抽水灌溉的鄰近的丘陵区(约1,500公顷)。根据该地北部其他地区的比较,由于四周环山,因此气候条件较为适合,年平均温度约为15℃冬季无冻害,有干旱现象,夏季炎热而湿润。但是
Second, the northern subtropical hilly region, mountainous and mountain basin area (warm and humid) V Hanzhong basin basin is located in the upper reaches of the Han River basin, elevation is about 460 ~ 600 meters, but around the basin are medium Mountain. For the modern alluvial plain, stretches ancient terraces, erosion into the modern hilly terrain. The alluvial plain stretches about 100 km long and about 10 km wide along the Han River. According to the plan for the comprehensive utilization of Han River, the total area of the alluvial plain is about 100,000 hectares, of which about 67,000 hectares are arable land and about 25,000 hectares are guaranteed by irrigation. Based on the alteration and expansion of the existing irrigation system, the area reserved for irrigation is about 67,000 hectares of land, including the adjacent hilly area (about 1,500 hectares) for pumping irrigation. According to the comparison of other parts of the northern part of the area, climatic conditions are more suitable due to the surrounding mountainous areas. The annual average temperature is about 15 ℃. There is no frost damage in winter and a drought phenomenon. The summer is hot and humid. but