Upland Farming System Erosion Yields and Their Constraints to Change for Sustainable Agricultural Conservation Practices: A Case Study of Land Use and Land Cover (LULC) Change in Indonesia

Abstract

In the upper catchments of Southeast Asia, land use change from forest to agricultural systems generated land degradation and conflicts between uplanders and lowlanders. More sustainable cropping systems are proposed to upper‐catchment farmers. Grass fodder strip (GFS) is an effective anti‐erosion practice, and it involves lower costs for farmers. However, labour and cash constraints are sometimes preventing farmers to implement it. To evaluate farms' current impact and adaptation capacities, we need a comprehensive understanding of farm and farm household characteristics that influence their activities. This paper proposes an approach that combines farm household surveys and modelling of farm erosion yield to help project planners and policy makers to identify such farmers in a data‐scarce environment. We developed two farm typologies—one based on both farm and farm household characteristics and one based on their erosion yield and constraints. We calculated erosion yields on plot level by using revised universal soil loss equation method and identified their constraints. We found that a typology based on farm constraints and calculated farm erosion was a good complement to identify farmers who are generating the highest erosion yields and would be able to change their production systems. This methodology is mainly useful at the beginning of conservation projects, when very few hard data are available. Copyright © 2016 John Wiley & Sons, Ltd.

Pengaruh Aplikasi Pupuk Organik dan Pestisida Organik terhadap Produktivitas Terung (Solanum melongena) dan Tingkat Bahaya Erosi

“…Metode USLE Tingkat bahaya erosi dapat dihitung menggunakan metode USLE (Universal Soil Loss Equation). Dimana metode USLE adalah salah satu metode pendugaan erosi yang cukup baik dipergunaakan unruk prediksi erosi pada level perkebunan (Andriyani et al, 2017). Perhitungan prediksi erosi dilakukan menggunakan metode USLE dengan Persamaan 7 berikut (Arsyad, 2010).…”

Global analysis of support practices in USLE-based soil erosion modeling

“…Furthermore, Andriyani et al (2017) proposed that the C-factor and P-factor can be multiplied together to obtain the CP-factor as follows:…”

“…where CC is the crop cover subfactor, SC is the soil surface cover subfactor, SR is the soil roughness subfactor, and CM is the crop management subfactor (Andriyani et al, 2017).…”

Assessing long-term rainfall trends and changes in a tropical watershed Brantas, Indonesia: an approach for quantifying the agreement among satellite-based rainfall data, ground rainfall data, and small-scale farmers questionnaires

“…Agriculture remains a major sector absorbing around 35% of the national workforce (Ginting and Aji 2015 ), despite declining shares of agricultural sectors to national products due to increasing industrialization and urbanization. Agricultural farming systems and livelihoods in Indonesia are characterized by their mostly small-scale size, subjectivity to erosion, land conflict, low income, and credit dependence (Adiningsih and Karama 1992 ; Mohri et al 2013 ; Andriyani et al 2017 ; Mariyono 2019 ). Spatial variation of bio-physical systems and diversity in cultural and social capitals exist and suggest the diversity in farming typology (Wiersum 2006 ).…”