District Intergrated Land Use Plan - Ngwaketse Land Board

CHAPTER 3
PHYSICAL ENVIRONMENT AND ITS COMPONENT SYSTEM OF RESOURCES
are medium textured sandy clay loams, clay loams, silty clay loams and silt becoming fine
textured clays, silty and sandy clays in Barolong Farms. The soils have no pH and sodium
limitations and low CEC values are moderately fertile.
3.4.5 There are five types of Luvisols in the District namely; Calcic Luvisols, Chromic Luvisols,
Ferric Luvisols, Gleyic Luvisols and Haplic Luvisols. They occur in the southern part of the
District as a thin belt from Pitsane through Good Hope and northwards to around
Mmathethe, south of Kanye, Maokane, through Jwaneng and east of Jwaneng.
3.4.6 South of Kanye, and in Maokane Luvisols soils are flat with a slope of less than 0,5 percent,
almost flat around Jwaneng and undulating north of Barolong Farms and south of
Mmathethe. Luvisols are moderately deep between 50cm and 100cm in the southern part
of the hardveld becoming deep (100cm-150cm) in the sandveld. Calcic Luvisols in
Maokane are well- drained coarse sands, sandy loams and loamy sands while in the
southern part of the hardveld they are imperfectly well-drained fine textured clays, silty and
sandy clays. Southeast of Jwaneng the soils are moderately well-drained medium textured
sandy clay loams, clay loams, silty clay loams and silt. Chromic Luvisols in the Metlobo
area are moderately well- drained medium textured sandy clay loams, silty clays and sandy
clay in the hardveld tongue. Luvisols on the hardveld tongue have a low pH (5.4-5,5) while
to the southeast and east of Jwaneng they have a high pH (7,51-8,3) in addition to sodium
limitations. South of Kanye, in Maokane, east of Mmathethe and north of Barolong Farms
Luvisols have no pH and sodium limitations. The soils have a low CEC value (5,1-10 Meq/
100gr) in Maokane and Barolong Farms while around Metlobo, the hardveld tongue and
east of Jwaneng the have higher CEC values (10,1- 20Meq/100gr). Luvisols ranges from
fertile to very fertile.
3.4.7 Regosols occur as Calcaric and Eutric Regosols which are associated with the hardveld
tongue, are found in the northern part of Kanye and to the north, northwest and southwest
of Kanye They are found to the west of Mmathethe and northeast of Good Hope along the
boundary with South East District. They are associated with hilly terrain in Kanye and the
northwest of Kanye. Regosols range from very shallow depths of less than 25cm to
moderate depths of between 50cm and 100cm. Regosols occur mostly as coarse textured
sands, sandy loams and loamy sands. While Regosols generally have no sodium limitations
and few pH limitations, these soils have pH limitations around Kanye, Sedibeng and
northeast of Good Hope. They range from moderately well-drained and well-drained in the
south to somewhat excessively drained in Kanye and northeast of Kanye. Regosols have
moderate to low fertility soils.
3.4.8 Haplic Acrisols cover about 558km 2 in the gently undulating eastern part of the District from
south east of Kanye to Digawana. The soils are moderately well-drained to well drained fine
textured clays, silty and sandy clays; medium textured sandy clay loams, clay loams, silty
clay loams and coarse textured sands, sandy loams and loamy sands. The soils are
moderately deep with a depth range of between 50cm and 100cm. Haplic Acrisols generally
have no sodium and pH limitations save in isolated areas with high and low pH values.
Exchangeable Cation Capacity (CEC) ranges from a low of less than 5 to 20Meg/100gr.
They are moderately fertile soils.
3.4.9 Calcisols are less extensive covering only a small area and occur in the southern part of the
hardveld tongue and the sandveld are flat to gently undulating well drained to moderately
well drained coarse textured sands, sandy loams and loamy sands. The soils range from
moderately deep to deep with depths of 50-100cm and 100-150cm respectively. Along the
fossil valley in the sandveld, the soils have no pH and sodium limitation with the exception
of the soil in the hardveld. Exchangeable Cation Capacity of between 5 and 10Meg/100gr.
36 REPORT OF SURVEY