Catchment Management and Its Effects on Arable Lands of Zimbabwe: A Look beyond the Fast Track Land Reform Program

• 作者: Kosamu Nyoni
• 来源期刊: 环境保护(英文)
• 学科: 医学
• 关键词: CATCHMENT Area MANAGEMENT Integrated CATCHMENT MANAGEMENT ARABLE Lands Sustainable Land Use SUSTAINABILITY TERRESTRIAL Carbon SEQUESTRATION
• 年，卷（期）: 2013,（10）
• 页码范围: 1123-1128
• 页数: 6页
• 分类号: R73

摘要

This study was carried out in selected districts of Mashonaland East and Central provinces of Zimbabwe in 2011 to determine the effects of soil erosion on arable lands and how this related to catchment management. Results show that the highest contribution is 53% and is obtained from arable land codes 5 and 7. These fields show signs of excessive sheet and gully erosion. The least contribution is 0.8% and this is on arable land codes 3, 4 and 8. These fields have properly done conservation works existing. 33% of the assessed arable lands have conservation works in place whilst 67% are not protected and as such the fields are eroded. Soil erosion results in the washing away of the precious top soil, responsible for plant growth and infiltration of rain or irrigation water. This reduces the usefulness of such affected arable lands as crops grown on it can’t thrive due to lack of soil fertility. The paper recommends that government policies focus more on promoting sustainable land use through integrated catchment area management. This will go a long way in achieving sustainable development in Zimbabwe.