สภาพแวดล้อมที่เคยเป็นธรรมชาติที่สมบ

The natural environment has completed starting with figurehead. Impacts of agricultural activities agricultural crop prices. Start the output quantity varies by the lack of ability to forecast in advance. The State and behavior of the population changed. The agricultural sector make labor shortage or lack of quality, as well as the warming conditions that cause climate change to the inherited wisdom villagers, many generations for life and take a decision to continue the activities in the farm. To start using.

Experience a completely natural environment began to decline. Impact on agricultural activity. Prices of agricultural crops Start by changing the amount of output that lack the ability to foretell. State distribution and behavior of population change. Labor shortages or lack of quality make the agricultural sector. Including global warming that causes climate change. The folk wisdom passed down for many generations used to live and decides to carry out activities in the field. Start unpractical