It is written in the beginning of the Torah. All land belongs to Hashem And hashem gives the land to whoever he wants. 

Therefore, when a person receives the fruits of the earth, he should remember that he Is taking from what belongs to Hashem.

Hashem gave the Jews Eretz Yisrael - the land of Israel!

Why?

So the Jews can Make him a comfortable place to live.

When someone decided to build himself a comfortable apartment, he explains the builders What kind of  apartment he likes.

The builders have to do what the landlord asks !!!

Therefore Hashem gave many different orders, how to live Eretz Yisroel, and how to handle it!

These are the commandments, which should be done when we work the land of Israel - Eretz Yisroel.

LEKET- leave fallen ears on the field for the poor.

SHIKCHA - leave the pitch forgotten sheaf for the poor.

PAI-AH - leave uncompressed edge of the field for the poor.

PERET- leave fallen in gathering grapes for the poor.

OLELOT- leave the poor little rough bunches.

Truman - the part that is separated for Kohanim - 2% of the total harvest.

Maaser RISHON - part of the crop, which is separated for Levi'im - 10% of the total harvest.

Maaser Sheni - part of the crop that is deposited in order to eat it in Jerusalem at the feast.

This part of the harvest lay in the second, fourth and fifth year of Schmit -

10% of what is left after the separation of Truman and Maaser Rishon.

Maaser they are separated as well as the Maaser Sheni in the third and sixth year of Schmitt and give to the poor.

TRUMAT Maaser separated Levi'im for Cohen.

Bikur - the first fruits of the plant, which is famous for the Land of Israel, who give Cohen.

NETA RVAI - the fruit of the tree which is famous for the Land of Israel, for the fourth year after planting a tree. These fruits are being taken to Jerusalem, where they eat.

EAGLE - the fruit of all the trees the first three years, they can not be there at all!

Kila - not to put together different types of plants, such as wheat and grapes (you noticed that your island is still growing in some areas).

Schmit - every seventh year the land should be given to rest, so it is not treated. All that has grown on the land itself can gather everyone who wants it. The owner of the field can not collect their crops from their fields and to hide from themselves, but can take as much as he needs to eat. In Schmitt master all fields Hashem!

Hadash - a new crop of grain (wheat and barley is the fact that they seem) to 16 Nisan.

Nisan 16 in the first Mikdashi bring OMER barley - is the first fruit of the new year for cereals. After giving the Omer can eat what grew in the new year. Now this is called crop Yashanov - old.

Tevel - the fruits of which Maaser and Truma have not yet separated.

Chulin - the fruits of which have already been separated Truman and Maaser and you can use it as you wish!

You chose the island and build on it Eretz Yisroel. Now you have to deal with all these mitzvah. After your island should also like Hashem !!!

Good luck!

Zeid Mikhl.