{"title":"中国干旱半干旱区绿洲长时间序列变化特征及适宜尺度","authors":"Lei Zhang, Xia Jia, Yonghua Zhao , Manya Luo, Qi Mu, Hongliang Kang, Peng Zhang","doi":"10.1016/j.apgeog.2025.103663","DOIUrl":null,"url":null,"abstract":"<div><div>Oasis is the key supporter of ecological environment and social economy in arid and semi-arid regions. Studying the change characteristics of oasis and suitable scale of oasis is significant for the stability and sustainable development. In this study, the change characteristics of oasis in the Hexi Corridor from 1985 to 2022 were analyzed, the complex network model was employed to analyze the specific process of oasis change, the hydrothermal balance method was used to evaluate the suitable scale of oasis. The results indicated that the scale of oasis in the Hexi Corridor increased by 6394.196 km<sup>2</sup> from 1985 to 2022. Among the oases, 57.455 % remained stable over time. Weak change dominated, comprising 61.326 % of the total area. Meanwhile, the intensity of expansion was more than three times that of contraction. The unused land and grassland played a key role in the change process. Furthermore, the oasis maintained in a sub-stable state of development. The suitable scale of oasis was smaller than the actual scale of oasis in all years. The largest suitable scale was 24117.707 km<sup>2</sup> in 2010, while the smallest was 13619.811 km<sup>2</sup> in 2020. This research provides valuable insights for guiding sustainable development in regional oasis.</div></div>","PeriodicalId":48396,"journal":{"name":"Applied Geography","volume":"180 ","pages":"Article 103663"},"PeriodicalIF":4.0000,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Long time-series change characteristics and suitable scale of oasis in arid and semi-arid regions of China\",\"authors\":\"Lei Zhang, Xia Jia, Yonghua Zhao , Manya Luo, Qi Mu, Hongliang Kang, Peng Zhang\",\"doi\":\"10.1016/j.apgeog.2025.103663\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Oasis is the key supporter of ecological environment and social economy in arid and semi-arid regions. Studying the change characteristics of oasis and suitable scale of oasis is significant for the stability and sustainable development. In this study, the change characteristics of oasis in the Hexi Corridor from 1985 to 2022 were analyzed, the complex network model was employed to analyze the specific process of oasis change, the hydrothermal balance method was used to evaluate the suitable scale of oasis. The results indicated that the scale of oasis in the Hexi Corridor increased by 6394.196 km<sup>2</sup> from 1985 to 2022. Among the oases, 57.455 % remained stable over time. Weak change dominated, comprising 61.326 % of the total area. Meanwhile, the intensity of expansion was more than three times that of contraction. The unused land and grassland played a key role in the change process. Furthermore, the oasis maintained in a sub-stable state of development. The suitable scale of oasis was smaller than the actual scale of oasis in all years. The largest suitable scale was 24117.707 km<sup>2</sup> in 2010, while the smallest was 13619.811 km<sup>2</sup> in 2020. This research provides valuable insights for guiding sustainable development in regional oasis.</div></div>\",\"PeriodicalId\":48396,\"journal\":{\"name\":\"Applied Geography\",\"volume\":\"180 \",\"pages\":\"Article 103663\"},\"PeriodicalIF\":4.0000,\"publicationDate\":\"2025-05-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Applied Geography\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0143622825001584\",\"RegionNum\":2,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"GEOGRAPHY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Geography","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0143622825001584","RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"GEOGRAPHY","Score":null,"Total":0}
Long time-series change characteristics and suitable scale of oasis in arid and semi-arid regions of China
Oasis is the key supporter of ecological environment and social economy in arid and semi-arid regions. Studying the change characteristics of oasis and suitable scale of oasis is significant for the stability and sustainable development. In this study, the change characteristics of oasis in the Hexi Corridor from 1985 to 2022 were analyzed, the complex network model was employed to analyze the specific process of oasis change, the hydrothermal balance method was used to evaluate the suitable scale of oasis. The results indicated that the scale of oasis in the Hexi Corridor increased by 6394.196 km2 from 1985 to 2022. Among the oases, 57.455 % remained stable over time. Weak change dominated, comprising 61.326 % of the total area. Meanwhile, the intensity of expansion was more than three times that of contraction. The unused land and grassland played a key role in the change process. Furthermore, the oasis maintained in a sub-stable state of development. The suitable scale of oasis was smaller than the actual scale of oasis in all years. The largest suitable scale was 24117.707 km2 in 2010, while the smallest was 13619.811 km2 in 2020. This research provides valuable insights for guiding sustainable development in regional oasis.
期刊介绍:
Applied Geography is a journal devoted to the publication of research which utilizes geographic approaches (human, physical, nature-society and GIScience) to resolve human problems that have a spatial dimension. These problems may be related to the assessment, management and allocation of the world physical and/or human resources. The underlying rationale of the journal is that only through a clear understanding of the relevant societal, physical, and coupled natural-humans systems can we resolve such problems. Papers are invited on any theme involving the application of geographical theory and methodology in the resolution of human problems.