Analysis and utilization of the climatic resources in Xiangxi River Basin

This paper discusses the unique climatic resource in the Xiangxi river valley. The features of the climatic resource in the area can be concluded as follows: 1. It is very warm in winter and frost period is short. 2. According to the sea level elevation, the mountains can be divided into several climatic zones. 3. Precipitation is even around the whole year so that rainfall can be used effectively by crops. In addition, it has been found that both topography and meteorological systems result in the features. In order to exploit the climatic resource, some crops for the different heat zones are recommended with the criterions such as under suitable climate condition, high economic value and great market demand. The results suggest that: 1. Below the sea level elevation 500m is suitable for citrus and tong oil tree. 2. Tea tree and mason pine could be planted between 500m and 800m. 3. Mushroom and Chinese chestnut are suitable for the elevation 800m-1200m. 4. The land above 1200m can be used for forage grass and Chinese medicinal materials. Finally, the hazard of climatic resource utilization and development in this region has also been evaluated in this paper.