Volume 13, Issue 3 (10-2019)
مرتع 2019, 13(3): 436-449 |
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Jafarnejad A, Mahdavi A, Falah Shamsi S R, Yousofpoor R. Economic values of some services of Zagros rangelands ecosystem in Ilam province. مرتع 2019; 13 (3) :436-449
URL: http://rangelandsrm.ir/article-1-783-en.html
URL: http://rangelandsrm.ir/article-1-783-en.html
Department of Forest Science, Faculty of Agriculture, Ilam University, Ilam
Abstract: (5542 Views)
Rangelands products is multilateral. They directly provide forage, preserve water and regulate soil water absorbance. In the meantime they play major role in carbon sequestration, soil conservation, and so on. In this study, 4 ecosystem services of Zagros rangelands were studied and evaluated economically in the Mishkhas watershed of Ilam city.
Some of benefits of rangelands were directly calculated via livestock products method to calculate the rangeland production function. For estimation of other ecosystem services, including water yield, soil erosion and carbon sequestration the In-VEST model was used. For water production the EPM was the method. Total carbon sequestration also was calculated in 2018 base on the dollar rate of 42,000 rials. The total value of each hectare of the rangelands in the region is concluded to be 12.41 million rials. The value rates per each hectare could be ranked as the water yield equal to 56.6 million rials, carbon sequestration equal to 33.4 million rials, soil protection equal to 21 million rials and production of forage as 10.4 million rials. As the results shows the highest value among other ecosystem services goes to water production, i.e. 46.6 percent. Rangeland’s soil erosion production benefit is equal to 164749 million Rials. Also the resulted showed that each hectare of the rangeland sequestrates 31.48 tons of carbon which its value is 262191 million rials while he total annual economic value of forage products was 81978 million Rials. In general, it could be said that the rangelands of the studied area are more important in terms of regulation services such as water production and carbon sequestration than fodder production. Maintaining and enhancing non-marketable services is very important both from the human as well as the economic point of view.
Some of benefits of rangelands were directly calculated via livestock products method to calculate the rangeland production function. For estimation of other ecosystem services, including water yield, soil erosion and carbon sequestration the In-VEST model was used. For water production the EPM was the method. Total carbon sequestration also was calculated in 2018 base on the dollar rate of 42,000 rials. The total value of each hectare of the rangelands in the region is concluded to be 12.41 million rials. The value rates per each hectare could be ranked as the water yield equal to 56.6 million rials, carbon sequestration equal to 33.4 million rials, soil protection equal to 21 million rials and production of forage as 10.4 million rials. As the results shows the highest value among other ecosystem services goes to water production, i.e. 46.6 percent. Rangeland’s soil erosion production benefit is equal to 164749 million Rials. Also the resulted showed that each hectare of the rangeland sequestrates 31.48 tons of carbon which its value is 262191 million rials while he total annual economic value of forage products was 81978 million Rials. In general, it could be said that the rangelands of the studied area are more important in terms of regulation services such as water production and carbon sequestration than fodder production. Maintaining and enhancing non-marketable services is very important both from the human as well as the economic point of view.
Keywords: Function of forage production, Water production, Carbon sequestration, Soil erosion, Zagros rangelands
Type of Study: Research |
Subject:
Special
Received: 2019/10/21 | Accepted: 2019/10/21 | Published: 2019/10/21
Received: 2019/10/21 | Accepted: 2019/10/21 | Published: 2019/10/21
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