Evaluating of changed properties of the acid sulfate soils in the Red river delta after
2010
Nguyen Van Dao; Ho Quang Duc; Nguyen Van Bo
The Red river delta is economic center of northern Vietnam. With the tidal, underground water and mangroves forestry have created coastal provincesprovinces in the Red River delta have group acid sulfate soils with total area about 88 thousands hectare. The Red river delta have the acid sulfate soils group with the area of about 88 thousands hectare. The acid sulfate soils is great importance in agricultural production. The study results have showed that: Through 30 years of used exploitation, the acid sulfate soils have large fluctuations. Total area of the acid sulfate soils increase 16,960.49 ha. In which, the potential acid sulfate soil increase 7,201.92 ha and the actual acid sulfate soil increase 9,758.57 ha. The practice size in the acid sulfate soils do not have a lot of changes, the clay increased and the silt and sand decrease because of process water washing. The acidity increased in the acid sulfate soils. The content of nutrient total of organic carbon, nitrogen, phosphorus and potassium are no change or mild increase in most acid sulfate soils. In contrast to the content of nutrient available of phosphorus, potassium and calcium, magnesium tends to decrease.
Mostrar más [+] Menos [-]Palabras clave de AGROVOC
Información bibliográfica
Este registro bibliográfico ha sido proporcionado por Informatic Centre for Agriculture and Rural Development