Phan Trung Quý1
1Bộ môn Hoá học, Khoa Đất và Môi trường, Trường Đại học Nông nghiệp I
Từ khoá: Phù sa, hàm lượng, kali, nước sông Hồng
Summary
The change of sediment and available potassium content in water of the Red River (Ha Noi and Ha Tay province)
Highest content of sediment was observed in July, 20 times higher than that of it in January. Highest available K content was in July, 13 times higher that of it in January. Main reasons of these differences are the big change of water flow debit between rainy and dry season and the strong erosion in rainy season in the up-stream.