Assessment of the soil-protecting services of the forest ecosystem: a case study in Ilam catchment, Iran Cover

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Assessment of the soil-protecting services of the forest ecosystem: a case study in Ilam catchment, Iran

Forestry Studies

Volume 78 (2023): Issue 1 (November 2023)

By: Ali Mahdavi and Elham Motaharfard

Open Access

|Nov 2023

Figures & Tables

Location of the study area and pictures of the soil erosion types in the catchment (a) sheet erosion in the Southwest of the catchment and rock fall movements.

Factors used to calculate the annual soil loss in the RUSLE model.

The Land use map of the study catchment and pictures of the (a) Dense Forest, (b) Sparse Forest.
Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographies, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community — The Land use map of the study catchment and pictures of the (a) Dense Forest, (b) Sparse Forest. Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographies, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community

The C factor and levels of soil erosion maps for the defined scenarios on the Ilam catchment.

Average annual soil erosion (t ha-1 year-1) under natural conditions_

Land use type	NC
	Area		Factor	Soil loss
	(km²)	(%)	C	Mean	Std
Dense Forest	52.974	40.18	0.17	78.61	53.17
Sparse Forest	17.083	12.96	0.2	95.41	48.85
Agri-Forest	0.854	0.65	0.14	46.79	27.61
Agri-Range	2.075	1.57	0.25	46.42	32.38
Agriculture	23.075	17.5	0.16	16.27	18.4
Bare soil	0.17	0.13	0.99	256.6	156.5
Rangeland	1.954	1.47	0.2	77.94	64.01
Range-Bare soil	2.138	1.62	0.55	39.02	36.74
Range-Shrub	1.476	1.12	0.19	62.01	55.7
Irrigated and Garden	2.833	2.15	0.18	9.36	12.49
Urban	27.212	20.64	0.99	63.54	63.88

Average annual soil erosion (t ha-1 year-1) under SC_1 scenarios_

Land use type	SC.1
	Area		Factor	Soil loss
	(km²)	(%)	C	Mean	Std
Dense Forest	52.974	40.18	0.4	184.36	124.8
Sparse Forest	17.083	12.96	0.45	213.51	111.09
Agri-Forest	0.854	0.65	0.16	66.35	56.9

Average annual soil erosion (t ha-1 year-1) under SC_2 scenarios_

Land use type	SC.2
	Area		Factor	Soil loss
	(km²)	(%)	C	Mean	Std
Dense Forest	52.974	40.18	0.01	5.04	8.2
Sparse Forest	17.083	12.96	0.02	10.33	7.7
Agri-Forest	0.854	0.65	0.08	21.41	14.1

DOI: https://doi.org/10.2478/fsmu-2023-0003 | Journal eISSN: 1736-8723 | Journal ISSN: 1406-9954

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Language: English

Page range: 28 - 40

Submitted on: Feb 8, 2023

Accepted on: Jun 22, 2023

Published on: Nov 9, 2023

Published by: Estonian University of Life Sciences

In partnership with: Paradigm Publishing Services

Publication frequency: 2 issues per year

Keywords:

Zagros Mountains,

Related subjects:

Life sciences, other

© 2023 Ali Mahdavi, Elham Motaharfard, published by Estonian University of Life Sciences
This work is licensed under the Creative Commons Attribution 4.0 License.

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