Greening roll

A greening roll comprising:

• a layered water-temperature-light controlling structure having sealed chambers and seed-stacking cavities;
• a water and root regulating layer facing the layered water-temperature-light controlling structure;
• and
• root growing cavities formed by and between the layered water-temperature-light controlling structure and the water and root regulating layer,
• wherein portions of the water and root regulating layer are in direct contain with the layered water-temperature-light controlling structure so as to separate the root growing cavities from each other.

A greening roll comprising:

• a water-temperature-light controlling part located at an upper portion of the greening roll,
• a water and root regulating part located at a lower portion of the greening roll,
• a root growing part located in a cavity formed between the water-temperature-light controlling part and the water and root regulating part, and
• a seed-stacking part located in a seed-stacking cavity of the water-temperature-light controlling part;
• wherein the water and root regulating part is made of overpressure permeable material or perforated material and has water capacity space arranged therein;
• the water capacity space is formed by folding the overpressure permeable material or the perforated material after stretching and may open under water swelling stress of the root growing part to form holding chambers, which accommodate root growing material and water.