Tại sao nói thực vật góp phần điều hòa khí hậu

- Nhờ quá trình quang hợp ở thực vật hàm lượng khí các bô níc và oxi trong không khí được ổn định .

- Thực vật cản bớt ánh sáng và tốc độ gió , giúp điều hòa khí hậu làm không khí trong lành , mát mẻ , làm tăng lượng mưa trong khu vực.

- Lá cây ngăn bụi , cần giờ , giảm nhiệt độ môi trường , một số cây như thông , bạch đằn , ... tiết chất diệt vi khuẩn gây bệnh giúp giảm ô nhiễm môi trường.

- Thực vật , đặc biệt là rừng nhờ có tán lá và hệ rễ cản bớt sức nước chảy do mưa lớn gây ra giúp giữ đất chống xói mòn .

- Thực vật có vai trò hạn chế dòng chảy , giữ lại phần lớn nước cho đất , đã góp phần hạn chế lũ lụt , hạn hán.

- Thực vật góp phần bảo vệ nguồn nước ngầm.

- Nhờ có tán lá và hề rẻ mà thực vật giữ lại một lượng nước lớn , nước này ngấm xuống đất tạo nên hệ nước ngầm.

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