Let me give a short introduction of myself so you guys can give more appropriate answers.
It's been some time I've get to know about permaculture or something similar. I'm not quite sure the difference between Hugelkultur, Forest Garden and Permaculture. Anyway, I'm in my mid twenties and is now saving some money to buy some land for growing own food supply in the future. I'm born a city dweller and not even having any knowledge in farming except that I've read quite some discussion, ideas and concepts of permaculture. I'm living in West peninsular of Malaysia, a tropical climate country. I do not have exact data about temperature and rainfall but I guess it is better to leave it for wiki to explain about my area. In recent years, we do face some flood problems in lower plains of certain states due to heavy rainy season around october-december. http://en.wikipedia.org/wiki/Geography_of_Malaysia
1. What zone number am I considered to be in?
2. What kind of land is best or better to be chosen? Some examples are sloppy lands, plains, wild forest, orchards, rubber estates, oil palm plantations, with rivers, with ponds, etc. Which would be the priority?
3. In order to fully or covering atleast 80% of the food supply for 4 family of six each (24 person in total), how many acres of land do i need? Our diet can be mainly base on veggies, maybe some grains if not consuming too much land, poultry, and some fishes from ponds. We do not plan to have cows or other livestock that requires much space for grazing. I know it varies base on plannings but you guys can give estimation base on an average farmer's (sooner or later we will be one or even better).
4. If the design is just averagely efficient and not extremely bio-intensive, how many acres can a person handle with 30-40 hours of work a week on it? 2 acre? 2.5 acre? or much more.