SOIL DEGRADATION STATUS ON DIFFERENT LAND USE TYPES IN CAN THO CITY, VIETNAM

SOIL DEGRADATION STATUS ON DIFFERENT LAND USE TYPES IN CAN THO CITY, VIETNAM

Le Dang Long1, Le Canh Dinh1, Tran Van Hung2*, Pham Thanh Vu2, Nguyen Van Hieu3, Nguyen Trung Hieu3, Pham Cam Dang2, Pham Thi Thuy Kieu2, Vo Quang Minh2

1 SubInstitute of Agricultural Planning and Projection, Vietnam

2 Department of Land Resources, College of Environment and Natural Resources, Can Tho University, Can Tho City, Vietnam

3 Department of Resources and Environment of Can Tho City, Can Tho, Vietnam

*Corresponding author: “tvanhung@ctu.edu.vn”

SUMMARY

The study aims to assess land types and the current land use status in the Can Tho city and assess changes in soil characteristics of different types of soil degradation for land use types in the study area. The study has collected secondary data on the current land use situation, soil types, and soil characteristics of soil degradation in the study area. It is a premise to evaluate changes in soil properties for different land use types. It uses synthetic data processing, mapping, evaluation, and analysis methods. From there, the results in the study area have 13 main soil types: Sp2, Sj1p, Sj2, Sj2p, Sv, Pb, Pfb, Pf, Pgb, Pg, Pvb, Pv, Nt. In which the soil type occupying the most extensive area is alluvial soil with a red-yellow layer (Pf) of 47,479 ha, distributed the most in Co Do district (18,264 ha) and the lowest in Thot Not (344 ha). In the area, agricultural soils are concentrated with the largest area of 114,621 hectares, including the following types of land use: Wetland rice-specialized land accounting for 78.25% of agricultural production soil; annual upland cropland accounts for 1.25%; soils for perennial crops accounted for 20.4 9%; soils for aquaculture accounts for 2.14%. From there, the average index of soil characteristics and the variation of 12 types of characteristics were determined based on each district, land use status, and land type. Through the change in soil properties according to the types of degradation, assess the degree of soil degradation in Can Tho city, which has no degradation by administrative unit and land use type.

Keywords: land use, soil degradation, soil type.

Reviewer: Dr. Bui Huy Hien
Email: buihuyhien@gmail.com

Received: 09/3/2024

Review completed: 16/9/2024

Accepted: 16/10/2024