2000-2020年青藏高原建设用地转型及其生态环境效应

doi:10.18402/resci.2025.01.12

	2000-2020年青藏高原建设用地转型及其生态环境效应
其他题名	Construction land transition in Qinghai-Tibet Plateau and its eco-environmental effects during 2000-2020
	张子宁 1; 骆军强 1; 张培蕾 1; 荣菡 1; 刘海洋 1; 安爽2 ; 常跟应 3
	2025-01-25
发表期刊	资源科学
卷号	47 期号:1 页码:153-166
摘要	[目的]土地资源作为支撑社会经济快速发展的重要要素,在支撑快速城镇化进程中的转型演化面临着诸多生态环境问题.青藏高原是典型的生态脆弱和敏感区,如何合理开发利用与促进生态环境保护至关重要,因此,建设用地显性形态变化牵动区域土地利用转型,产生的生态环境效应更值得关注.[方法]基于2000-2020年土地利用和遥感影像数据,分析青藏高原建设用地转型情况,通过构建改进型遥感生态指数(IRSEI),进一步探讨建设用地转移地类的生态效应及对局部生态环境效应贡献的区域差异,以期为青藏高原资源环境协调发展提供参考.[结果]①青藏高原建设用地总体以增加为主,缩小区面积较小.青海高原区和柴达木盆地区是主要变化区,河谷省会、盆地工业城市和旅游城市是主要变化城市.②青藏高原建设用地早期主要转为耕地和草地,后期主要转为水域及水利设施用地,而早期扩张主要占用未利用地,后期主要占用耕林草等生态用地.转移地类区域差异明显,藏北高原区和柴达木盆地区转为水域及水利设施用地和未利用地比例较高,而扩张主要占用草地和未利用地,其余地区建设用地转移以与耕地和草地互转为主.③青藏高原各地区建设用地IRSEI值川藏高山峡谷区＞祁连山地区＞藏南谷地区＞青海高原区＞柴达木盆地区＞藏北高原区.④建设用地转型总体表现为生态负效应,藏北高原区和柴达木盆地区未利用地和草地向建设用地转移产生的生态效应贡献最高,其他地区贡献生态效应的主要是生态用地.[结论]2000-2020年青藏高原建设用地转型及其产生的生态环境效应具有区域差异性,未来可通过差异化政策和措施,促进青藏高原可持续发展.
其他摘要	[Objective]Land resources are critical factors supporting the rapid development of soci-ety and economy.However,their transition during urbanization processes poses significant ecologi-cal and environmental challenges.The Qinghai-Tibet Plateau,as a typical ecologically fragile and sensitive region,requires balanced strategies for rational development and ecological conservation.In this context,the explicit morphological changes of construction land drive the transition of re-gional land use,and the ecological and environmental effects generated thereby deserve more atten-tion.[Methods]Based on land use and remote sensing image data from 2000 to 2020,this study an-alyzed construction land transitions on the Qinghai-Tibet Plateau.By developing an improved re-mote sensing ecological index(IRSEI),the study further examined the ecological effects of land-use type transitions and their regional differences in contributions to local ecological environments.The findings aim to provide a reference for the coordinated development of resources and environ-ment on the Qinghai-Tibet Plateau.[Results](1)Construction land on the Qinghai-Tibet Plateau had predominantly increased,with only a small reduction in specific areas.The primary areas of change were the Qinghai Plateau and the Qaidam Basin,with significant changes observed in pro-vincial capitals along river valleys,industrial cities in the basins,and tourist cities.(2)In earlier years,construction land mainly transitioned to cropland and grassland,while in later years,it pri-marily converted to water bodies and water conservancy land.Early expansion mainly occupied un-used land,whereas later expansion predominantly encroached on ecological land such as cropland,forest,and grassland.Regional differences in land-use transitions were evident:the Northern Tibet Plateau and Qaidam Basin showed higher proportions of transitions to water bodies,water conser-vancy land,and unused land,while the expansion mainly occupied grasslands and unused land;in other regions,construction land predominantly shifted between cropland and grassland.(3)The IR-SEI values of construction land in the regions of Qinghai-Tibet Plateau were ranked as follows:Si-chuan-Tibet alpine canyon region＞Qilian Mountains region＞Southern Tibet valley region＞Qin-ghai Plateau＞Qaidam Basin＞Northern Tibet Plateau.(4)Overall,construction land transition demonstrated negative ecological effects.In the Northern Tibet Plateau and Qaidam Basin,the eco-logical effects resulting from the transfer of unused land and grassland to construction land contrib-uted the most,while in other regions,ecological land was the primary contributor to the ecological effects.[Conclusion]From 2000 to 2020,the transition of construction land on the Qinghai-Tibet Plateau and its resulting ecological and environmental effects exhibited significant regional differ-ences.In the future,differentiated policies and measures can be implemented to promote the sus-tainable development of Qinghai-Tibet Plateau.
关键词	青藏高原建设用地转型改进型遥感生态指数生态环境效应生态贡献
DOI	10.18402/resci.2025.01.12
URL	查看原文
收录类别	中国科技核心期刊 ; 北大核心 ; CSCD ; AMI
ISSN	1007-7588
语种	中文
原始文献类型	Periodical
中图分类号	F301.2 ; X321
来源期刊等级	C1类
CN号	11-3868/N
文献类型	期刊论文
条目标识符	http://ir.lzufe.edu.cn/handle/39EH0E1M/39035
专题	农林经济管理学院
通讯作者	常跟应
作者单位	1.兰州大学资源环境学院,兰州 730000; 2.兰州大学资源环境学院,兰州 730000;兰州财经大学农林经济管理学院,兰州 730101; 3.兰州大学资源环境学院,兰州 730000;兰州大学西部环境教育部重点实验室,兰州 730000
推荐引用方式 GB/T 7714	张子宁,骆军强,张培蕾,等. 2000-2020年青藏高原建设用地转型及其生态环境效应[J]. 资源科学,2025,47(1):153-166.
APA	张子宁.,骆军强.,张培蕾.,荣菡.,刘海洋.,...&常跟应.(2025).2000-2020年青藏高原建设用地转型及其生态环境效应.资源科学,47(1),153-166.
MLA	张子宁,et al."2000-2020年青藏高原建设用地转型及其生态环境效应".资源科学 47.1(2025):153-166.