Quy luật phân hóa và đặc điểm thổ nhưỡng khu vực Sa Pả - Tà Phìn, tỉnh Lào Cai

Abstract

Soil is an important natural component in the vertical structure of
geographical landscape. Changes in thermal - humid conditions according to
altitudinal belts are the cause of forming 3 vertical soil belts: feralitic humic belt,
humic allitic belt and mountainous gross humic belt. The soil cover in the
investigated area is diverse, consisting of 10 soil types. The soil types are different
in mechanical composition, nutrient content and soil environmental characteristics
in relation with soil forming factors, especially terrain elevation, slope, thermal -
humid conditions, vegetation and human impact.