Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.jaridenv.2016.09.004 |
Comparative assessment of grassland degradation dynamics in response to climate variation and human activities in China, Mongolia, Pakistan and Uzbekistan from 2000 to 2013 | |
Yang, Yue1; Wang, Zhaoqi1; Li, Jianlong1; Gang, Chencheng1,2; Zhang, Yanzhen1; Zhang, Ying1; Odeh, Inakwu3; Qi, Jiaguo4 | |
通讯作者 | Li, Jianlong |
来源期刊 | JOURNAL OF ARID ENVIRONMENTS |
ISSN | 0140-1963 |
EISSN | 1095-922X |
出版年 | 2016 |
卷号 | 135页码:164-172 |
英文摘要 | Quantifying the driving force is significant to understand the impact of climate variation and human activities on grassland degradation. In this study, we selected net primary productivity (NPP) as an indicator to quantitatively assess the relative roles of climate variation and human activities in China, Mongolia, Pakistan and Uzbekistan from 2000 to 2013. The results showed that 1.9% of grassland areas experienced degradation in Uzbekistan. By contrast, 29.6%, 16%, and 32.5% of grassland areas underwent restoration in China, Mongolia and Pakistan, respectively. Furthermore, 83.9%, 85.1%, 6.7% of restored grassland areas were influenced by climate variation and 65%, 79.1%, 11.6% of degraded areas were affected by human activities in Mongolia, Pakistan and Uzbekistan, respectively. The NPP variation also could be calculated to evaluate the impacts of these factors and results were consistent with the findings based on area. Therefore, climate variation dominated grassland restoration, human activities dominated degradation in Mongolia and Pakistan, and Uzbekistan was just the opposite. In China, 38.5% of the grassland restoration areas was caused by climate variations compared with 38% induced by human activities. On the contrary, 37.4% of grassland degradation was caused by climate variation and 30% resulted from human activities. In addition, the results based on NPP variation revealed that 39.2% of restored grassland areas were influenced by human activities and 38.2% of degraded areas were affected by climate variation. Therefore, climate variation dominated grassland degradation and the driving force of restoration was determined by the effectiveness of environmental protection programs. (C) 2016 Elsevier Ltd. All rights reserved. |
英文关键词 | Grassland degradation Climate variation Human activities Net primary productivity (NPP) Quantitative assessment |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China ; Australia ; USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000387836500020 |
WOS关键词 | NET PRIMARY PRODUCTIVITY ; QINGHAI-TIBETAN PLATEAU ; LAND DEGRADATION ; QUANTITATIVE ASSESSMENT ; HUMAN APPROPRIATION ; NORTHWEST CHINA ; INNER-MONGOLIA ; RANGELAND DEGRADATION ; RELATIVE ROLE ; DESERTIFICATION |
WOS类目 | Ecology ; Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
来源机构 | 西北农林科技大学 ; 南京大学 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/194168 |
作者单位 | 1.Nanjing Univ, Sch Life Sci, Dept Ecol, Nanjing, Jiangsu, Peoples R China; 2.Chinese Acad Sci, Inst Soil & Water Conservat, Yangling, Peoples R China; 3.Univ Sydney, Fac Agr & Environm, Dept Environm Sci, Sydney, NSW, Australia; 4.Michigan State Univ, Ctr Global Change & Earth Observat, E Lansing, MI 48824 USA |
推荐引用方式 GB/T 7714 | Yang, Yue,Wang, Zhaoqi,Li, Jianlong,et al. Comparative assessment of grassland degradation dynamics in response to climate variation and human activities in China, Mongolia, Pakistan and Uzbekistan from 2000 to 2013[J]. 西北农林科技大学, 南京大学,2016,135:164-172. |
APA | Yang, Yue.,Wang, Zhaoqi.,Li, Jianlong.,Gang, Chencheng.,Zhang, Yanzhen.,...&Qi, Jiaguo.(2016).Comparative assessment of grassland degradation dynamics in response to climate variation and human activities in China, Mongolia, Pakistan and Uzbekistan from 2000 to 2013.JOURNAL OF ARID ENVIRONMENTS,135,164-172. |
MLA | Yang, Yue,et al."Comparative assessment of grassland degradation dynamics in response to climate variation and human activities in China, Mongolia, Pakistan and Uzbekistan from 2000 to 2013".JOURNAL OF ARID ENVIRONMENTS 135(2016):164-172. |
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