2000—2020年青海河湟谷地植被NDVI时空变化及影响因素

李小宇; 信忠保; 杨俊柳; 柳金昊

doi:10.13870/j.cnki.stbcxb.2024.01.009

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2000—2020年青海河湟谷地植被NDVI时空变化及影响因素

更新时间：2025-03-12

- 2000—2020年青海河湟谷地植被NDVI时空变化及影响因素
- The Spatiotemporal Changes and Influencing Factors of Vegetation NDVI in the Hehuang Valley of Qinghai Province from 2000 to 2020
- 水土保持学报 2024年38卷第1期页码：79-90
- 作者机构：
  
  1. 北京林业大学水土保持学院,北京,100083
  2. 北京林业大学山西吉县森林生态系统国家野外科学观测研究站,北京,100083
- 作者简介：
  
  [ "李小宇(2002—),男,硕士研究生,主要从事水土保持研究。E-mail:lixiaoyu0618@126.com" ]
- 基金信息：
  
  第二次青藏高原综合考察研究项目(2019QZKK0608);北京林业大学大学生创新创业训练计划项目(X202210022049)
- DOI：10.13870/j.cnki.stbcxb.2024.01.009
  中图分类号： Q948.1
- 纸质出版：2024
- 稿件说明：
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李小宇, 信忠保, 杨俊柳, 等. 2000—2020年青海河湟谷地植被NDVI时空变化及影响因素[J]. 水土保持学报, 2024,38(1):79-90.

LI Xiaoyu, XIN Zhongbao, YANG Junliu, et al. The Spatiotemporal Changes and Influencing Factors of Vegetation NDVI in the Hehuang Valley of Qinghai Province from 2000 to 2020[J]. 2024, 38(1): 79-90.
李小宇, 信忠保, 杨俊柳, 等. 2000—2020年青海河湟谷地植被NDVI时空变化及影响因素[J]. 水土保持学报, 2024,38(1):79-90. DOI： 10.13870/j.cnki.stbcxb.2024.01.009.

LI Xiaoyu, XIN Zhongbao, YANG Junliu, et al. The Spatiotemporal Changes and Influencing Factors of Vegetation NDVI in the Hehuang Valley of Qinghai Province from 2000 to 2020[J]. 2024, 38(1): 79-90. DOI： 10.13870/j.cnki.stbcxb.2024.01.009.

摘要

[目的] 为了解青海河湟谷地植被时空变化情况

明晰气候变化、土地开发利用及人类活动等因素对植被变化的影响。[方法] 利用2000—2020年MODIS NDVI数据集表征植被变化

基于Theil-Sen Median趋势检验法、偏相关性分析、地理探测器等方法

探究青海河湟谷地NDVI时空变化情况及其与气温、降水、坡度、土壤类型和人类活动等影响因素的关系。[结果] (1)近20年河湟谷地植被NDVI呈波动增长趋势

显著增长区域面积为2.21×104 km2(p＜0.05)

占河湟谷地总面积的53.39%;植被NDVI显著下降区域面积为7.04×102 km2(p＜0.05)

主要分布在湟水谷地中部

占总面积的1.69%;(2)自然因素上

NDVI与气温、降水呈正相关区域分别占总面积的50.32%

80.14%。植被显著上升的区域主要分布在海拔2 800~3 100 m、坡度15°~20°、坡向为北向的区域。在高程小于3 200 m范围内

植被NDVI变化随高程增加呈现上升趋势

其中显著上升区域占总面积的54.37%。人类活动因素上

NDVI与人口密度、夜间灯光呈正相关区域分别占总面积的50.52%

38.53%。植被NDVI在森林、灌木、草地及建设用地上呈显著向好趋势。(3)综合偏相关性分析与地理探测器对植被NDVI变化归因分析可知

不同土壤类型上植被变化差异明显

年降雨量和人类活动是河湟谷地植被NDVI变化主要影响因素

各影响因素间存在交互作用

呈现相互增强和非线性增强关系。[结论] 研究结果揭示了河湟谷地植被NDVI时空变化特征

明确了自然因素与人为因素对植被NDVI变化的驱动机制

可为未来青海省河湟谷地生态保护、建设规划以及生态工程实施提供理论支撑。

Abstract

[Objective] This study is aimed to understand the spatiotemporal changes in vegetation in the Qinghai Hehuang Valley and clarify the effects of climate change

land development and utilization and human activities on vegetation change. [Methods] The MODIS NDVI dataset from 2000 to 2020 was used to characterize vegetation changes. Based on Theil-Sen Median trend test

partial correlation analysis

geographical detectors and other methods

this paper explored the spatiotemporal changes of NDVI in Qinghai Hehuang Valley and its relationship with temperature

precipitation

slope

soil type

human activities and other influencing factors. [Results] (1) In the past 20 years

the vegetation NDVI in the Hehuang Valley region had shown a fluctuating growth trend

with a significant increase in the area of 2.21×104 km2 (p＜0.05)

accounting for 53.39% of the total area of the Hehuang Valley. The area with a significant decrease in vegetation NDVI was 7.04×102 km2 (p＜0.05)

mainly distributed in the central part of the Huangshui Valley

accounting for 1.69% of the total area. (2) In terms of natural factors

the areas

in which NDVI was positively correlated with temperature and precipitation

accounting for 50.32% and 80.14% of the total area

respectively. The areas with significant vegetation increase were mainly distributed in areas with an altitude of 2 800~3 100 m

slope of 15°~20°

and a north facing slope. Within the range of elevation less than 3 200 m

vegetation NDVI changes showed an upward trend with the increasing of elevation

with a significant increase in the area accounting for 54.37% of the total area. In terms of human activity factors

the areas

in which NDVI was positively correlated with population density and nighttime lighting

accounting for 50.52% and 38.53% of the total area

respectively. Vegetation NDVI showed a significant upward trend in forests

shrubs

grasslands and construction land. (3) Based on the partial correlation analysis and the attribution analysis of vegetation NDVI changes by geographic detectors

it could be concluded that that there were obvious differences in vegetation changes among different soil types. Annual rainfall and human activities were the main influencing factors for vegetation NDVI changes in Hehuang Valley. The interaction between various influencing factors presented mutually reinforcing and non-linear enhancing relationships. [Conclusion] The spatiotemporal changes of vegetation NDVI in the Hehuang Valley were revealed

and the driving mechanisms of natural and human factors on vegetation NDVI changes were clarified

which could provide theoretical support for the future ecological protection

construction planning and the implementation of ecological engineering in Hehuang Valley of Qinghai Province.

关键词

Keywords

references

JANSSENA M A, SCHOON, M L, KE W. Scholarly net works on resilience, vulnerability and adaptation with in the human dimensions of global environmental change[J].Gobal Environmental Change,2006,16(3)240-252.

SHACHI P, PARMANAND K, MIODRAG Z, et al. Recent advances in assessment of soil erosion vulnerability in a watershed[J].International Soil and Water Conservation Research,2021,9(3):305-318.

GARCIN Y, SCHEUFB E, DARGIE C G, et al. Publisher Correction: Hydroclimatic vulnerability of peat carbon in the central Congo Basin[J].Nature,2022,612(7938):E9.

TIMMERMAN P. Vulnerability, resilience and the collapse of society: A revicw of models and possible climnatic applications[D].Toronto, Canada: Institute for Environmental Studies, University of Toronto,1981.

IPCC. Climate change 1995: The science of climate change by IPCC WG I[M].Cambridge:Cambridge University Press,1996:571.

望元庆,宋书愉,王杰,等.2000—2018年内蒙古沙区"生态-经济-社会"复合系统脆弱性演变及关键影响因素[J].生态学报,2023,43(6):2271-2286. WANG Y Q, SONG S Y, WANG J, et al. Vulnerability evolution and key influencing factors of ecology-economy-society composite system in sandy area of Inner Mongolia from 2000 to 2018[J].Acta Ecologic Sinica,2023,43(6):2271-2286.

WU X Y, ZHU C L, YU J B, et al. Ecological vulnerability in the red soil erosion area of Changting under continuous ecological restoration: Spatiotemporal dynamic evolution and rrediction[J].Forests,2022,13(12):e2136.

刘慧,师学义.静乐县生态脆弱性时空演变与分区研究[J].生态与农村环境学报,2020,36(1):34-43. LIU H, SHI X Y. Spatio-temporal evolution and zoning of ecological vulnerability in Jingle County[J].Journal of Ecology and Rural Environment,2020,36(1):34-43.

王志杰,苏嫄.南水北调中线汉中市水源地生态脆弱性评价与特征分析[J].生态学报,2018,38(2):432-442. WANG Z J, SU Y. Ecological vulnerability assessment and characteristics analysis of water sources in Hanzhong City, Middle Route of South-to-North Water Diversion Project[J].Acta Ecologic Sinica,2018,38(2):432-442.

何丽华,李建松,王熙,等.水源保护区的生态脆弱性及生态修复成效分析[J].测绘科学,2022,47(8):59-69. HE L H, LI Ji S, WANG X, et al. Analysis of ecological vulnerability and ecological restoration effect of water source protection area[J].Surveying and Mapping Science,2022,47(8):59-69.

王兆林,张露洋,钟溦懿,等.三峡库区生态空间脆弱性时空演变特征[J].水土保持研究,2023,30(1):348-355. WANG Z L, ZHANG L Y, ZHONG W Y, et al. Spatio-temporal evolution characteristics of ecological space vulnerability in the Three Gorges Reservoir area[J].Research of Soil and Water Conservation,2023,30(1):348-355.

湖北省水利厅.2021年湖北省水土保持公报[Z].武汉,2021. Hubei Provincial Department of Water Resources. Hubei Provincial Soil and Water Conservation Bulletin in 2021[Z].Wuhan,2021.

蔡兴冉,李忠勤,张慧,等.中国天山冰川变化脆弱性研究[J].地理学报,2021,76(9):2253-2268. CAI X R, LI Z Q, ZHANG H, et al. Study on the vulnerability of glacier change in Tianshan Mountains, China[J].Acta Geographical Sinica,2021,76(9):2253-2268.

杨青林,丁鹏凯,仙巍,等.川西北地区土壤侵蚀敏感性评价[J].人民长江,2018,49(10):30-35. YANG Q L, DING P K, XIAN W, et al. Evaluation of soil erosion sensitivity in Northwest Sichuan[J].Yangtze River,2018,49(10):30-35.

陈枫,李泽红,董锁成,等.基于VSD模型的黄土高原丘陵沟壑区县域生态脆弱性评价:以甘肃省临洮县为例[J].干旱区资源与环境,2018,32(11):74-80. CHEN F, LI Z H, DONG S C, et al. Ecological vulnerability assessment of counties in hilly and gully regions of the Loess Plateau based on VSD model: A case study of Lintao County, Gansu Province[J].Journal of Arid Land Resources and Environment,2018,32(11):74-80.

徐倩,焦菊英,严晰芹,等.道路侵蚀研究的进展与展望[J].水土保持通报,2021,41(4):357-367. XU Q, JIAO J Y, YAN X Q, et al. Progress and prospect of road erosion research[J].Bulletin Soil and Water Conservation,2021,41(4):357-367.

WEI H J, XUE D, HUANG J C, et al. Identification of coupling relationship between ecosystem services and urbanization for supporting ecological management: A case study on areas along the Yellow River of Henan Province[J].Remote Sensing,2022,14(9):e2277.

魏艳红,焦菊英.黄土丘陵沟壑区不同土地利用方式下小流域侵蚀产沙特征[J].水土保持学报,2021,35(3):96-103. WEI Y H, JIAO J Y. Characteristics of erosion and sediment yield in small watersheds under different land use patterns in loess hilly and gully region[J].Journal of Soil and Water Conservation,2021,35(3):96-103.

李志刚,梁心蓝,黄洪粮,等.坡耕地地表起伏对坡面漫流的影响[J].水土保持学报,2020,34(2):71-77,85. LI Z G, LIANG X L, HUANG H L, et al. Effects of surface relief on overland flow on sloping farmland[J].Journal of Soil and Water Conservation,2020,34(2):71-77,85.

林金煌,胡国建,祁新华,等.闽三角城市群生态环境脆弱性及其驱动力[J].生态学报,2018,38(12):4155-4166. LIN J H, HU G J, QI X H, et al. Eco-environmental vulnerability and its driving forces in the urban agglomeration of the Fujian Triangle[J].Acta Ecologic Sinica,2018,38(12):4155-4166.

奥勇,蒋嶺峰,白召弟,等.基于格网GIS的黄河流域土地生态质量综合评价[J].干旱区地理,2022,45(1):164-175. AO Y, JIANG L F, BAI Z D, et al. Comprehensive evaluation of land ecological quality in the Yellow River Basin based on grid GIS[J].Arid Land Geography,2022,45(1):164-175.

杜梅,赵健赟,杨静,等.基于MODIS和Landsat数据的湟水河流域土壤侵蚀时空变化研究[J].水土保持通报,2022,42(3):131-138. DU M, ZHAO J Y, YANG J, et al. Spatio-temporal variation of soil erosion in Huangshui River Basin based on MODIS and Landsat data[J].Bulletin Soil and Water Conservation,2022,42(3):131-138.

CHEN S F, ZHA X, BAI Y H,et al. Evaluation of soil erosion vulnerability on the basis of exposure, sensitivity, and adaptive capacity: A case study in the Zhuxi watershed, Changting, Fujian Province, Southern China[J].Catena,2019,177:57-69.

陈樟昊,姚雄,余坤勇,等.生态脆弱性与土壤侵蚀的演化关系[J].西南林业大学学报(自然科学版),2017,37(4):82-90. CHEN Z H, YAO X, YU K Y, et al. The evolutionary relationship between ecological vulnerability and soil erosion in typical red soil regions of southern China[J].Journal of Southwest Forestry University (Natural Science Edition),2017,37(4):82-90.

张斯源,樊逸飞,颜礼,等.基于长时序MODIS的陕西省近20年生态质量时空变化及其驱动力研究[J].水土保持学报,2023,37(2):111-119,198. ZHANG S Y, FAN Y F, YAN L, et al. Study on the spatial and temporal changes of ecological quality and its driving forces in Shaanxi Province in the past 20 years based on long-term MODIS[J].Journal of Soil and Water Conservation,2023,37(2):111-119,198.

魏云洁,甄霖,胡云锋,等.黄土高原典型区水土保持技术评估与需求分析:以安塞为例[J].生态学报,2019,39(16):5809-5819. WEI Y J, ZHEN L, HU Y F, et al. Evaluation and demand analysis of soil and water conservation technology in typical areas of the Loess Plateau:Taking Ansai as an example[J].Acta Ecologic Sinica,2019,39(16):5809-5819.

de SOUZA A C, BARBOSA L F E, DINIZ S F, et al. Methodology for understanding soil erosion[J].Journal of Sustainable Development,2022,15(4):e43.

PANTA B, BHANDARI T, PAUDEL B. Soil erosion vulnerability and adaptation strategies in maize field of Sindhukhola sub-watershed region, Nepal[J]. SN Applied Sciences,2020,2:e1940.

水利部.生产建设项目土壤流失量测算导则:SL 773—2018[S].北京:中国水利水电出版社,2018:12. Ministry of Water Resources. Soil loss measurement guidelines for production and construction projects: SL 773—2018[S].Beijing: China Water Conservancy and Hydropower Press,2018:12.

李嘉麟,陈家慧,华丽,等.基于CSLE的湖北省土壤侵蚀时空变化特征[J].水土保持学报,2022,36(4):43-52,62. LI J L, CHEN J H, HUA L, et al. Spatio-temporal variation characteristics of soil erosion in Hubei Province based on CSLE[J].Journal of Soil and Water Conservation,2022,36(4):43-52,62.

WILLIAMS J R, JONES C A, KINIRY J R, et al. The EPIC crop growth model[J].Transactions of the ASAE,1989,32(2):497-511.

MC COOL D K, BROWN L C, FOSTER G R, et al. Revised slope steepness factor for the universal soil loss equation[J].Transactions of the ASAE,1987,30(5):1387-1396.

LIU B Y, NEARING M A, RISSE L M. Slope gradient effects on soil loss for steep slopes[J].Transactions of the ASAE, 1994,37(6):1835-1840.

刘宝元,张科利,焦菊英.土壤可蚀性及其在侵蚀预报中的应用[J].自然资源学报,1999,14(4):345-350. LIU B Y, ZHANG L K, JIAO J Y.Soil erodibility and its application in erosion prediction[J].Journal of Natural Resources,1999,14(4):345-350.

QIU H, CUI P, REGMI A D, et al. The effects of slope length and slope gradient on the size distributions of loess slides: Field observations and simulations[J].Geomorphology,2018,300:69-76.

蔡崇法,丁树文,史志华,等.应用USLE模型与地理信息系统IDRISI预测小流域土壤侵蚀量的研究[J].水土保持学报,2000,14(2):19-24. CAI C F, DING S W, SHI Z H, et al. Application of USLE model and geographic information system IDRISI to predict soil erosion in small watershed[J].Journal of Soil and Water Conservation,2000,14(2):19-24.

杨凯祥,刘强,李秀红,等.三峡库区土壤侵蚀和植被覆盖变化分析[J].北京师范大学学报,2021,57(5):631-638. YANG K X, LIU Q, LI X H, et al. Analysis of soil erosion and vegetation cover change in the Three Gorges Reservoir area[J].Journal of Beijing Normal University,2021,57(5):631-638.

高艳丽,李红波.汉江流域景观格局变化对土壤侵蚀的影响[J].生态学报,2021,41(6):2248-2260. GAO Y L, LI H B. Impact of landscape pattern change on soil erosion in Hanjiang River Basin[J].Acta Ecologic Sinica,2021,41(6):2248-2260.

张晨,王清,陈剑平,等.金沙江流域泥石流的组合赋权法危险度评价[J].岩土力学,2011,32(3):831-836. ZHANG C, WANG Q, CHEN J P, et al. Risk assessment of debris flow in Jinsha River Basin by combination weighting method[J].Rock and Soil Mechanics, 2011,32(3):831-836.

水利部.土壤侵蚀分类分级标准:SL 190-2007[S].北京:中国水利水电出版社,2008. Ministry of Water Resources. Soil erosion classification standard: SL190-2007[S]Beijing: China Water Resources and Hydropower Press,2008.

恩施土家族苗族自治州水利和湖泊局,恩施州水土规划(2018—2030年)[Z]. 湖北恩施,2018. Enshi Tujia and Miao autonomous prefecture water conservancy and lakes bureau. Enshi water and soil planning (2018—2030)[Z].Enshi Prefecture,Hubei,2018.

宜昌市水利和湖泊局, 宜昌市水土规划(2016—2030年)[Z]. 湖北宜昌,2016. Yichang water and lakes bureau. Yichang water and soil planning (2016-2030)[Z]. Yichang,Hubei,2016.

谢人栋,赵翠薇.基于栅格尺度的喀斯特槽谷区生态环境脆弱性时空分异研究[J].长江科学院院报,2018,35(4):48-53. XIE R D, ZHAO C W. Spatio-temporal differentiation of ecological environment vulnerability in karst trough valley area based on grid scale[J].Journal of Yangtze River Academy of Sciences,2018,35(4):48-53.

姚雄,余坤勇,刘健,等.南方水土流失严重区的生态脆弱性时空演变[J].应用生态学报,2016,27(3):735-745. YAO X, YU K Y, LIU J, et al. Spatio-temporal evolution of ecological vulnerability in severe soil erosion areas in southern China[J].Chinese Journal Applied Ecology,2016,27(3):735-745.

徐超璇,鲁春霞,黄绍琳.张家口地区生态脆弱性及其影响因素[J].自然资源学报,2020,35(6):1288-1300. XU C X, LU C X, HUANG S L. Ecological vulnerability and its influencing factors in Zhangjiakou area[J].Journal of Natural Resources,2020,35(6):1288-1300.

郭婧,魏珍,任君,等.基于熵权灰色关联法的高寒贫困山区生态脆弱性分析:以青海省海东市为例[J].水土保持通报,2019,39(3):191-199. GUO J, WEI Z, REN J, et al. Analysis of ecological vulnerability in alpine poverty-stricken mountainous areas based on entropy weight grey correlation method:Taking Haidong City, Qinghai Province as an example[J].Bulletin Soil and Water Conservation,2019, 39(3):191-199.

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