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Evaluation of arable land suitability based on the suitability function-A case study of the Qinghai-Tibet Plateau
Yao, Minglei1; Shao, Dongguo1; Lv, Changhe2; An, Rihui1; Gu, Wenquan1; Zhou, Cheng1
2021-09-15
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume787Pages:17
Corresponding AuthorShao, Dongguo(dgshao@whu.edu.cn)
AbstractArable land suitability evaluation (ALSE) is one of the tools to ensure sustainable agricultural production and achieve the global food security goal. Determining the relationship between the suitability score of arable land (AL) and the corresponding influencing factors (e.g. precipitation and temperature) is the key step to ALSE. How-ever, the traditional method gets discontinuous suitability scores by classification based on expert knowledge, which contains considerable subjective uncertainty. This study proposes a proportion-based method, aiming to construct the suitability function based on the rule of "survival of the fittest", thus the suitability score can be expressed in continuous curves with less uncertainty. ALSE can be concluded in three steps. First, the evaluation objects, i.e., current arable land (CAL) and potential arable land (PAL), and influencing factors are determined by environmental constraints and screening principles respectively. Second, the suitability functions of the influenc-ing factors are constructed by counting the proportion of CAL to AL. Third, the suitability order and class for AL are divided respectively by influencing factors and Jenks classification. The results show that: (1) The development of CAL basically adapts to local natural conditions in China's Qinghai-Tibet Plateau (QTP). Suitable CAL is mainly dis-tributed in the river valleys, where the elevation is low. Unsuitable CAL is mainly distributed in the Hengduan Mountains, where the slope is steep and the gravel content is high. (2) The area of suitable PAL is 5.3 times of suit-able CAL, with grassland accounting for 95.2% and bare land accounting for 4.8%, meaning that there is great po-tential to exploit PAL. The proposed suitability function is easy to generalize and use, and ALSE in QTP can provide support for land use planning. (c) 2021 Elsevier B.V. All rights reserved.
KeywordSuitability function Qinghai-Tibet Plateau Arable land evaluation Survival of the fittest
DOI10.1016/j.scitotenv.2021.147414
WOS KeywordMULTICRITERIA EVALUATION ; HYBRID POPLAR ; FUZZY-LOGIC ; GIS ; CLASSIFICATION ; SYSTEM ; MAIZE ; MODEL ; L.
Indexed BySCI
Language英语
Funding ProjectStrategic Priority Research Program of Chinese Academy of Sciences[XDA2004030102] ; National Key Research and Development Program of China[2019YFC0408905] ; National Natural Science Foundation of China[51709204] ; National Natural Science Foundation of China[51439006]
Funding OrganizationStrategic Priority Research Program of Chinese Academy of Sciences ; National Key Research and Development Program of China ; National Natural Science Foundation of China
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000662579000016
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/163790
Collection中国科学院地理科学与资源研究所
Corresponding AuthorShao, Dongguo
Affiliation1.Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Yao, Minglei,Shao, Dongguo,Lv, Changhe,et al. Evaluation of arable land suitability based on the suitability function-A case study of the Qinghai-Tibet Plateau[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,787:17.
APA Yao, Minglei,Shao, Dongguo,Lv, Changhe,An, Rihui,Gu, Wenquan,&Zhou, Cheng.(2021).Evaluation of arable land suitability based on the suitability function-A case study of the Qinghai-Tibet Plateau.SCIENCE OF THE TOTAL ENVIRONMENT,787,17.
MLA Yao, Minglei,et al."Evaluation of arable land suitability based on the suitability function-A case study of the Qinghai-Tibet Plateau".SCIENCE OF THE TOTAL ENVIRONMENT 787(2021):17.
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