Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s12040-018-1016-2 |
Evaluation of indicators for desertification risk assessment in part of Thar Desert Region of Rajasthan using geospatial techniques | |
Salunkhe, Sagar S.1; Bera, A. K.1; Rao, S. S.1; Venkataraman, V. Raghu2; Raj, Uday2; Murthy, Y. V. N. Krishna2 | |
通讯作者 | Salunkhe, Sagar S. |
来源期刊 | JOURNAL OF EARTH SYSTEM SCIENCE
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ISSN | 2347-4327 |
EISSN | 0973-774X |
出版年 | 2018 |
卷号 | 127期号:8 |
英文摘要 | Desertification has emerged as a major economic, social and environmental problem in the western part of India. The best way of dealing with desertification is to take appropriate measures to arrest land degradation, especially in areas prone to desertification. This requires an early warning system for desertification based on scientific inputs. Hence, in the present study, an attempt has been made to develop a comprehensive model for the assessment of desertification risk in the Jodhpur district of Rajasthan, India, using 23 desertification indicators. Indicators including soil, climate, vegetation and socio-economic parameters were integrated into a GIS environment to get environmental sensitive areas (ESAs) to desertification. Desertification risk index (DRI) was calculated based on ESAs to desertification, the degree of land degradation and significant desertification indicators obtained from the stepwise multiple regression model. DRI was validated by using independent indicators such as soil organic matter content and cation exchange capacity. Multiple regression analysis shows that 16 indicators out of 23 were found to be significant for assessing desertification risk at a 99% confidence interval with R-2 = 0.83. The proposed methodology provides a series of effective indicators that would help to identify where desertification is a current or potential problem, and what could be the actions to alleviate the problem over time. |
英文关键词 | Desertification indicators desertification risk assessment environmental sensitive areas to desertification stepwise multiple regression model |
类型 | Article |
语种 | 英语 |
国家 | India |
收录类别 | SCI-E |
WOS记录号 | WOS:000447669500001 |
WOS关键词 | ENVIRONMENTAL SENSITIVITY ; AGGREGATE STABILITY ; ORGANIC-MATTER ; DATA SETS |
WOS类目 | Geosciences, Multidisciplinary ; Multidisciplinary Sciences |
WOS研究方向 | Geology ; Science & Technology - Other Topics |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/210817 |
作者单位 | 1.NRSC ISRO, Reg Remote Sensing Ctr West, Jodhpur, Rajasthan, India; 2.ISRO, Natl Remote Sensing Ctr, Hyderabad, Telangana, India |
推荐引用方式 GB/T 7714 | Salunkhe, Sagar S.,Bera, A. K.,Rao, S. S.,et al. Evaluation of indicators for desertification risk assessment in part of Thar Desert Region of Rajasthan using geospatial techniques[J],2018,127(8). |
APA | Salunkhe, Sagar S.,Bera, A. K.,Rao, S. S.,Venkataraman, V. Raghu,Raj, Uday,&Murthy, Y. V. N. Krishna.(2018).Evaluation of indicators for desertification risk assessment in part of Thar Desert Region of Rajasthan using geospatial techniques.JOURNAL OF EARTH SYSTEM SCIENCE,127(8). |
MLA | Salunkhe, Sagar S.,et al."Evaluation of indicators for desertification risk assessment in part of Thar Desert Region of Rajasthan using geospatial techniques".JOURNAL OF EARTH SYSTEM SCIENCE 127.8(2018). |
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