開發山坡地為解決台灣人口壓力之一良策，本文以苗栗縣之泰安、大湖、卓蘭和三義為例，實地考察研究。從其自然環境．小區域開發分論與比較之研究中，發現本研究為可細分為三個小地理區，各依其特性行適地通作適養，分工生產：泰安區應以林為主，大湖、卓蘭區以農牧為主，而三義區則將以工業為主。但開發需須兼顧保育，才能使山地資源做理想的永續利用。

For releasing the pressure of the growth of population, reclamation on lands of mountainous slopes seems to be very necessary in Taiwan.
This dissertation takes the southern part of Miao-li Hsien as an instance to show its perspective view on regional geography. The writer had his exploration of the region concerned in a detailed manner.
In view of the physical environments of the region and the existing circumstances of small regional development, the subject-matter was divided into several subtitles for detailed discussion, and comparative study. Depending upon the special features, the writer suggested to separate the slope-lands of this mountainous country into three small geographical regions and to take division of labour on production by doing suitable plantation and proportionate cultivation on proper place.
The Tai-an section should be put on the development of forestry in primary importance. The Ta-hu section is probably fitting for making investigation on reclamation of growing fruits and pastures for grazing cattles. As far as the San-i section is concerned, it seems to meet with further extension on the development in industry. After all, soil conservation must be considered first before we could make use of the land resources fully and ideally to give satisfaction in the long run.