By established facilities and use organic matter of animal manure, human waste, plant straw for anaerobic fermentation to produce inflammable biogas for uses of lighting, cooking with the residue liquid and dreg for high quality organic fertilizer.

• អ្នកចងក្រង៖ Yaolin Wang
• 27 សីហា 2010, 10:45

Belts of trees, planted in a rectangular grid pattern or in strips within, and on the periphery of, farmland to act as windbreaks.

• អ្នកចងក្រង៖ Meili WEN
• 15 ធ្នូ 2010, 13:34

Level bench terraces on the Loess Plateau, converting eroded and degraded sloping land into a series of steps suitable for cultivation.

• អ្នកចងក្រង៖ Yaolin Wang
• 9 ធ្នូ 2010, 13:36