Land degradation in terms of soil erosion and nutrient depletion affects soil physical, chemical and biological properties; crop yield and income growth particularly crop income. Yet a basic assumption underlying the interventions in developing countries, mostly the degraded agricultural areas, is that adoption of soil and water conservation (SWC) practice has the potential to improve available soil nutrients specially carbon content, crop yield and crop income by reducing soil erosion. Less attention, however, has been given to specifying and linking the effect of adopted SWC practices influences (or specifically, improves) soil nutrients and crop yield; their impact on crop income and the factors influencing them in Ethiopia. Partly to fill this limitation, this review aims to look at the effects of adopted SWC practice in cultivated highlands of Ethiopia; the factors influencing them and their implications for soil and crop yield, carbon sequestration and crop income. Several findings indicated that SWC practices affected to soil bulk density (BD) negatively; and soil reaction (PH), potassium (K), available phosphorus (P), total nitrogen (N), soil organic carbon (SOC), soil organic matter (SOM), cation exchange capacity (CEC), texture, exchangeable sodium (N+), calcium (Ca+2), magnesium (Mg+2), other micro nutrients, crop yield and income positively. In addition, the review paper concerns that adoption of soil and water conservation practices has a positive impact for some agricultural soil and crop productivity, while negative impacts for some others, thus, a dynamic soil nutrient analysis should be more appropriate to improve agricultural productivity.
Inhaltsverzeichnis (Table of Contents)
- Abstract
- Introduction
- Conceptualizing soil and water conservation
- Effects of SWC practices on soil fertility and crop production in Ethiopia
- Factors influencing the effectiveness of SWC practices
- Impacts of SWC practices on crop yield and income
- Conclusion and recommendations
- References
Zielsetzung und Themenschwerpunkte (Objectives and Key Themes)
This review aims to investigate the impacts of adopted soil and water conservation (SWC) practices in the Ethiopian highlands on soil fertility, crop yield, carbon sequestration, and crop income. It seeks to understand the factors influencing the effectiveness of these practices and their broader implications for agricultural productivity and sustainability.
- The effects of SWC practices on soil physical and chemical properties
- The impact of SWC practices on crop yield and income
- The role of SWC practices in carbon sequestration
- Factors influencing the effectiveness of SWC practices, such as age of conservation measures, slope gradients, and type of structures
- The broader implications of SWC practices for agricultural productivity and sustainability
Zusammenfassung der Kapitel (Chapter Summaries)
- Abstract: This section introduces the topic of the review, highlighting the significance of SWC practices in mitigating land degradation and their potential to improve soil fertility, crop yield, and income in Ethiopia.
- Introduction: This chapter discusses the challenges of land degradation, particularly soil erosion and nutrient depletion, and their adverse impacts on soil quality, crop productivity, and agricultural sustainability. It emphasizes the need for effective SWC practices to address these issues.
- Conceptualizing soil and water conservation: This chapter defines soil and water conservation and explains its importance in maintaining soil health and productivity. It discusses the major factors contributing to soil degradation, particularly water, wind, and tillage, and the role of SWC practices in mitigating these factors.
- Effects of SWC practices on soil fertility and crop production in Ethiopia: This chapter explores the impact of SWC practices on various soil properties, including soil bulk density, pH, potassium, available phosphorus, total nitrogen, soil organic carbon, soil organic matter, cation exchange capacity, texture, exchangeable sodium, calcium, magnesium, and other micronutrients. It also examines the influence of SWC practices on crop yield.
- Factors influencing the effectiveness of SWC practices: This chapter delves into the factors that influence the effectiveness of SWC practices, such as the age of conservation measures, slope gradients, and type of structures. It examines the role of these factors in influencing soil physicochemical indicators and the effectiveness of SWC practices.
- Impacts of SWC practices on crop yield and income: This chapter discusses the impact of SWC practices on crop yield and income in Ethiopia. It highlights the positive effects of SWC practices on both crop production and farmer income.
Schlüsselwörter (Keywords)
The review focuses on key concepts such as soil and water conservation (SWC), soil fertility, crop yield, carbon sequestration, crop income, land degradation, soil erosion, nutrient depletion, agricultural productivity, and sustainability. It explores the impact of various SWC practices, including stone bunds, level bunds, and fanya juu, on soil properties and crop yields. The review also considers factors influencing the effectiveness of SWC practices, such as the age of conservation measures, slope gradients, and type of structures.
- Arbeit zitieren
- Tsegay Assefa (Autor:in), 2024, Effect of Soil and Water Conservation Practices. Soil Fertility, Carbon Sequestration, Crop Yield and Crop Income in the Highlands of Ethiopia, München, GRIN Verlag, https://www.hausarbeiten.de/document/1394722
