Yao Cui , Ligang Wang , Dan Liu , Qiaoyang Liu , De Yu , Yanfang Liu
{"title":"宁夏回族自治区耕地时空动态(2009-2019):特征、驱动因素及政策启示","authors":"Yao Cui , Ligang Wang , Dan Liu , Qiaoyang Liu , De Yu , Yanfang Liu","doi":"10.1016/j.nxsust.2025.100189","DOIUrl":null,"url":null,"abstract":"<div><div>Food security is a cornerstone of national security, with cultivated land serving as the fundamental resource for food production. In China, where cultivated land protection and food security are prioritized, land-use changes have attracted widespread attention. However, rapid urbanization and population growth have led to significant conversion of cultivated land to non-agricultural uses, exacerbating the land-population imbalance. Although numerous studies have explored the impact of cultivated land changes on food security, quantitative analyses specifically targeting the Ningxia Hui Autonomous Region (Ningxia) remain limited. This study, therefore, focuses on Ningxia, systematically investigating changes in cultivated land from 2009 to 2019 in terms of quantity, structure, and spatial distribution, using land-use dynamic degree and relative change rate, and further exploring driving forces and protection strategies. Results reveal three key findings: (1) The total cultivated land area in Ningxia showed an overall declining trend by 2019, with paddy fields and drylands decreasing significantly while irrigated land increased annually—this structural shift reflects both adaptation to water resource constraints and potential risks to traditional grain production. (2) Spatially, changes were more pronounced in southern Ningxia than the regional average, indicating uneven pressure on cultivated land across regions. (3) Key drivers include agricultural restructuring, construction land occupation, ecological migration, and farmers’ spontaneous reclamation, with the first two factors posing notable threats to cultivated land stability. To address these challenges, targeted protection measures are proposed: strengthening region-specific policies (e.g., water-saving irrigation promotion in northern irrigation districts, and ecological restoration-linked farmland consolidation in southern mountainous areas) to curb non-agricultural conversion, improving irrigation efficiency to compensate for dryland loss, and integrating ecological protection with farmland preservation. This study clarifies the urgency of balancing economic development and cultivated land security in Ningxia, providing actionable insights for policymakers.</div></div>","PeriodicalId":100960,"journal":{"name":"Next Sustainability","volume":"6 ","pages":"Article 100189"},"PeriodicalIF":0.0000,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Spatiotemporal dynamics of cultivated land in Ningxia Hui Autonomous Region (2009–2019): Characteristics, drivers, and policy implications\",\"authors\":\"Yao Cui , Ligang Wang , Dan Liu , Qiaoyang Liu , De Yu , Yanfang Liu\",\"doi\":\"10.1016/j.nxsust.2025.100189\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Food security is a cornerstone of national security, with cultivated land serving as the fundamental resource for food production. In China, where cultivated land protection and food security are prioritized, land-use changes have attracted widespread attention. However, rapid urbanization and population growth have led to significant conversion of cultivated land to non-agricultural uses, exacerbating the land-population imbalance. Although numerous studies have explored the impact of cultivated land changes on food security, quantitative analyses specifically targeting the Ningxia Hui Autonomous Region (Ningxia) remain limited. This study, therefore, focuses on Ningxia, systematically investigating changes in cultivated land from 2009 to 2019 in terms of quantity, structure, and spatial distribution, using land-use dynamic degree and relative change rate, and further exploring driving forces and protection strategies. Results reveal three key findings: (1) The total cultivated land area in Ningxia showed an overall declining trend by 2019, with paddy fields and drylands decreasing significantly while irrigated land increased annually—this structural shift reflects both adaptation to water resource constraints and potential risks to traditional grain production. (2) Spatially, changes were more pronounced in southern Ningxia than the regional average, indicating uneven pressure on cultivated land across regions. (3) Key drivers include agricultural restructuring, construction land occupation, ecological migration, and farmers’ spontaneous reclamation, with the first two factors posing notable threats to cultivated land stability. To address these challenges, targeted protection measures are proposed: strengthening region-specific policies (e.g., water-saving irrigation promotion in northern irrigation districts, and ecological restoration-linked farmland consolidation in southern mountainous areas) to curb non-agricultural conversion, improving irrigation efficiency to compensate for dryland loss, and integrating ecological protection with farmland preservation. This study clarifies the urgency of balancing economic development and cultivated land security in Ningxia, providing actionable insights for policymakers.</div></div>\",\"PeriodicalId\":100960,\"journal\":{\"name\":\"Next Sustainability\",\"volume\":\"6 \",\"pages\":\"Article 100189\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2025-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Next Sustainability\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2949823625000923\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Next Sustainability","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2949823625000923","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Spatiotemporal dynamics of cultivated land in Ningxia Hui Autonomous Region (2009–2019): Characteristics, drivers, and policy implications
Food security is a cornerstone of national security, with cultivated land serving as the fundamental resource for food production. In China, where cultivated land protection and food security are prioritized, land-use changes have attracted widespread attention. However, rapid urbanization and population growth have led to significant conversion of cultivated land to non-agricultural uses, exacerbating the land-population imbalance. Although numerous studies have explored the impact of cultivated land changes on food security, quantitative analyses specifically targeting the Ningxia Hui Autonomous Region (Ningxia) remain limited. This study, therefore, focuses on Ningxia, systematically investigating changes in cultivated land from 2009 to 2019 in terms of quantity, structure, and spatial distribution, using land-use dynamic degree and relative change rate, and further exploring driving forces and protection strategies. Results reveal three key findings: (1) The total cultivated land area in Ningxia showed an overall declining trend by 2019, with paddy fields and drylands decreasing significantly while irrigated land increased annually—this structural shift reflects both adaptation to water resource constraints and potential risks to traditional grain production. (2) Spatially, changes were more pronounced in southern Ningxia than the regional average, indicating uneven pressure on cultivated land across regions. (3) Key drivers include agricultural restructuring, construction land occupation, ecological migration, and farmers’ spontaneous reclamation, with the first two factors posing notable threats to cultivated land stability. To address these challenges, targeted protection measures are proposed: strengthening region-specific policies (e.g., water-saving irrigation promotion in northern irrigation districts, and ecological restoration-linked farmland consolidation in southern mountainous areas) to curb non-agricultural conversion, improving irrigation efficiency to compensate for dryland loss, and integrating ecological protection with farmland preservation. This study clarifies the urgency of balancing economic development and cultivated land security in Ningxia, providing actionable insights for policymakers.