IGSNRR OpenIR
Emergy-Based Evaluation of Changes in Agrochemical Residues on the Qinghai-Tibet Plateau, China
Wang, Xiuhong1; Zhang, Yili1,2,3
2019-07-01
Source PublicationSUSTAINABILITY
ISSN2071-1050
Volume11Issue:13Pages:12
Corresponding AuthorWang, Xiuhong(wangxh@igsnrr.ac.cn)
AbstractStudy of changes in agrochemical residues on the Qinghai-Tibet Plateau is necessary for the agricultural green development of the fragile plateau and its downstream regions. The total agrochemical residue (TR) caused by main agrochemical inputs was estimated in the study area of Qinghai province and the Tibet Autonomous Region over 1995-2017 by using the emergy synthesis method. The total agrochemical residue was decomposed into the intensity factor, the structure factor, the productivity factor, and the labour factor by using the Logarithmic Mean Divisia Index (LMDI) decomposition method. The change in TR could be divided into four time periods, i.e., a rapidly increasing period during 1995-1998, a stable period during 1999-2004, a slowly increasing period during 2005-2011, and a fluctuant period during 2012-2017. The study area had a mean TR intensity in area (TRA) of 3.31 x 10(14) sej/ha, which was only 38.21% of that in China; however, the annual growth rate of TRA in the study area was 2.93%, higher than the rate of 1.91% in China over 1995-2017. The study area had a mean TR intensity in production (TRP) of 4.06 x 10(10) sej/CNY (Chinese Yuan), which was 71.05% of that in China; however, the annual decreasing rate of TRP in the study area was 0.95%, lower than the rate of 1.98% in China over 1995-2017. All the LMDI decomposed factors contributed to the TR increase during 1995-1998; the intensity factor, the structure factor, and the labour factor contributed to the TR decrease during 1999-2004; the structure factor and the productivity factor contributed to the TR increase during 2005-2011; and only the productivity factor contributed to the TR increase during 2012-2017. Compared with the whole country, the study area has more potential to reduce TR by improving agrochemical use efficiency, strengthening the recovery of plastic film residue, increasing organic agricultural materials, raising the efficiency of agricultural production, and accelerating the transfer of rural labours to secondary and tertiary industries.
Keywordagrochemical residues emergy synthesis LMDI decomposition agrochemical inputs agricultural policies the Qinghai-Tibet Plateau
DOI10.3390/su11133652
WOS KeywordNONPOINT-SOURCE POLLUTION ; CROP PRODUCTION SYSTEM ; DECOMPOSITION ANALYSIS ; WATER-QUALITY ; LAND-USE ; SUSTAINABILITY ; EMISSIONS ; IMPACTS ; POLICY ; INDIA
Indexed BySCI
Language英语
Funding ProjectSecond Tibetan Plateau Scientific Expedition and Research[2019QZKK0600] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA20040200]
Funding OrganizationSecond Tibetan Plateau Scientific Expedition and Research ; Strategic Priority Research Program of the Chinese Academy of Sciences
WOS Research AreaScience & Technology - Other Topics ; Environmental Sciences & Ecology
WOS SubjectGreen & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS IDWOS:000477051900148
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/58122
Collection中国科学院地理科学与资源研究所
Corresponding AuthorWang, Xiuhong
Affiliation1.Chinese Acad Sci, Key Lab Land Surface Pattern & Simulat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
2.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 101408, Peoples R China
Recommended Citation
GB/T 7714
Wang, Xiuhong,Zhang, Yili. Emergy-Based Evaluation of Changes in Agrochemical Residues on the Qinghai-Tibet Plateau, China[J]. SUSTAINABILITY,2019,11(13):12.
APA Wang, Xiuhong,&Zhang, Yili.(2019).Emergy-Based Evaluation of Changes in Agrochemical Residues on the Qinghai-Tibet Plateau, China.SUSTAINABILITY,11(13),12.
MLA Wang, Xiuhong,et al."Emergy-Based Evaluation of Changes in Agrochemical Residues on the Qinghai-Tibet Plateau, China".SUSTAINABILITY 11.13(2019):12.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wang, Xiuhong]'s Articles
[Zhang, Yili]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang, Xiuhong]'s Articles
[Zhang, Yili]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang, Xiuhong]'s Articles
[Zhang, Yili]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.