当前位置: X-MOL 学术Ecol. Indic. › 论文详情
Negative impacts of nomadic livestock grazing on common rangelands’ function in soil and water conservation
Ecological Indicators ( IF 4.229 ) Pub Date : 2019-11-29 , DOI: 10.1016/j.ecolind.2019.105946
Seyed Alireza Mousavi, Mohsen Sarshad Ghahfarokhi, Saeed Soltani Koupaei

There is a great deal of pressure on common rangelands through excessive usage of forage resources. It brings private benefits for local communities while imposing ecological and economic damages to ecosystem services as community products. This is evident especially in arid environments where ecosystems are often in poor conditions. Khafr and Sivar rangelands were selected in central regions of Iran to calculate the external costs caused by ecosystem service loss due to nomadic utilisation system. Water and soil conservation services were considered in this study as two major ecosystem services provided by rangeland ecosystems. The impacts of nomadic livestock grazing on soil conservation service was determined by estimating soil erosion in pre and post grazing conditions using MPSIAC model and the impacts on water conservation function was evaluated by calculating the runoff volume before and after grazing through the empirical CN method. The economic value of these ecosystem services was estimated using replacement cost approach. Direct benefits of nomads from livestock grazing was studied using a questionnaire-based approach and structured questionnaires. Economic justification of this utilisation system was revised finally considering the economic damages to ecosystem services as external costs. Results showed that ecosystem service losses as hidden social costs are significant under the current utilisation system. The annual damage to water and soil conservation services was 794,839 US$, as part of the negative externalities of the nomads. Meanwhile, the annual net present value of direct benefits of nomadic livestock grazing were only 601,562 US$, and combining annual external costs with the private costs reduced the net present value of the system to −193,276 US$ per year. As a conclusion, it should be noted that contrary to the importance of the nomadic system from cultural and social aspects, the current system is not economically justified in arid, poor and common rangelands. This highlights the need for appropriate policy to maintain both ecological and socio-cultural values.

更新日期:2019-11-30
全部期刊列表>>
ERIS期刊投稿
欢迎阅读创刊号
自然职场,为您触达千万科研人才
spring&清华大学出版社
城市可持续发展前沿研究专辑
Springer 纳米技术权威期刊征稿
全球视野覆盖
施普林格·自然新
chemistry
物理学研究前沿热点精选期刊推荐
自然职位线上招聘会
欢迎报名注册2020量子在线大会
化学领域亟待解决的问题
材料学研究精选新
GIANT
ACS ES&T Engineering
ACS ES&T Water
屿渡论文,编辑服务
ACS Publications填问卷
阿拉丁试剂right
苏州大学
林亮
南方科技大学
朱守非
内蒙古大学
杨小会
隐藏1h前已浏览文章
课题组网站
新版X-MOL期刊搜索和高级搜索功能介绍
ACS材料视界
上海纽约大学
浙江大学
廖矿标
天合科研
x-mol收录
试剂库存
down
wechat
bug