黄土高原植被变化对气象干旱多尺度响应特征与机制

李家誉; 佘敦先; 张利平; 夏军; 刘哲琼; 王绿绿; 齐贵增; 邓翠玲

doi:10.13870/j.cnki.stbcxb.2022.06.034

您当前的位置：

首页 >

文章列表页 >

黄土高原植被变化对气象干旱多尺度响应特征与机制

更新时间：2025-03-12

- 黄土高原植被变化对气象干旱多尺度响应特征与机制
- Multi-scale Response Characteristics and Mechanism of Vegetation to Meteorological Drought on the Loess Plateau
- 水土保持学报 2022年36卷第6期页码：280-289
- 作者机构：
  
  1. 武汉大学水资源与水电工程科学国家重点实验室,武汉,430072
  2. 海绵城市建设与水系统科学湖北省重点实验室,武汉,430072
  3. 西北大学城市与环境学院,西安,710127
  4. 澜湄水资源合作中心,北京,100038
- 作者简介：
- 基金信息：
  
  国家自然科学基金面上项目(41877159,52179023)
- DOI：10.13870/j.cnki.stbcxb.2022.06.034
  中图分类号： Q948.1
- 纸质出版：2022
- 稿件说明：
移动端阅览
李家誉, 佘敦先, 张利平, 等. 黄土高原植被变化对气象干旱多尺度响应特征与机制[J]. 水土保持学报, 2022,36(6):280-289.

LI Jiayu, SHE Dunxian, ZHANG Liping, et al. Multi-scale Response Characteristics and Mechanism of Vegetation to Meteorological Drought on the Loess Plateau[J]. 2022, 36(6): 280-289.
李家誉, 佘敦先, 张利平, 等. 黄土高原植被变化对气象干旱多尺度响应特征与机制[J]. 水土保持学报, 2022,36(6):280-289. DOI： 10.13870/j.cnki.stbcxb.2022.06.034.

LI Jiayu, SHE Dunxian, ZHANG Liping, et al. Multi-scale Response Characteristics and Mechanism of Vegetation to Meteorological Drought on the Loess Plateau[J]. 2022, 36(6): 280-289. DOI： 10.13870/j.cnki.stbcxb.2022.06.034.

摘要

基于黄土高原1983—2015年间的植被状况指数(VCI)与1~48个月尺度的标准化降水蒸散发指数(SPEI)和标准化降水指数(SPI)

利用Pearson相关系数法、线性回归法和Mann-Kendall趋势检验法等方法研究了黄土高原地区植被对气象干旱的多时间尺度时空响应特征。结果表明:(1)1983—2015年

黄土高原植被状况整体趋于改善

但黄土高原整体干湿状况变化趋势不大。(2)黄土高原绝大部分区域植被变化与气象干旱指数呈现显著正相关关系

表明植被活动受到水分的限制较强。但是

过去几十年

黄土高原地区植被受到水分限制的影响程度有逐渐减轻的趋势。(3)黄土高原植被对短时间尺度的水分盈亏变化相对敏感

尤其是耕地和草地对1~4个月的SPEI更为敏感

而林地对SPEI的响应时间尺度较为分散。黄土高原VCI与SPEI、SPI的最大相关系数均主要出现在生长季(4—10月)

表明水分条件在生长季对植被活动的影响较为显著。

Abstract

In this study

based on Vegetation Condition Index (VCI) of the Loess Plateau from 1983 to 2015

Standardized Precipitation Evapotranspiration Index (SPEI) and the Standardized Precipitation Index (SPI) at the scale of 1~48 months

we investigated the spatial-temporal response characteristics of vegetation to meteorological drought index at multi time-scales on the Loess Plateau through Pearson correlation coefficient method

linear regression method and Mann Kendall trend test method. The results showed that: (1) The overall vegetation condition of the Loess Plateau improved

but no significant drying or wetting trend could be detected in the study area during 1983 and 2015. (2) The change of vegetation was well positively correlated to the meteorological drought index in most areas of the Loess Plateau

indicating that the vegetation growth was largely restricted by the moisture in the study area. However

in the past few decades

such restriction effect from atmospheric moisture to the vegetation was gradually weakening. (3) The vegetation on the Loess Plateau was relatively much more sensitive to the change of water balance at a short time sale

the cultivated land and grassland were more sensitive to the SPEI of 1~4 months

while the response time-scale of forest land to SPEI was relatively scattered. Furthermore

the maximum correlation coefficient between VCI and SPEI or SPI on the Loess Plateau mainly occurred during the growing season (April to October)

indicating that the water conditions had a much more significant effect on vegetation growth during growing season.

关键词

Keywords

references

Mo K, Chen Q W, Chen C, et al. Spatiotemporal variation of correlation between vegetation cover and precipitation in an arid mountain-oasis river basin in northwest China[J].Journal of Hydrology,2019,574:138-147.

Zscheischler J, Mahecha M D, von Buttlar J, et al. A few extreme events dominate global interannual variability in gross primary production[J].Environmental Research Letters,2014,9(3):e35001.

Vicente-Serrano S M, Gouveia C, Camarero J J, et al. Response of vegetation to drought time-scales across global land biomes[J].Proceedings of the National Academy of Sciences,2013,110(1):52-57.

中国气象局.GB/T 20481—2017 气象干旱等级[S].北京:中国标准出版社,2017.

孔冬冬,张强,顾西辉,等.植被对不同时间尺度干旱事件的响应特征及成因分析[J].生态学报,2016,36(24):7908-7918.

齐贵增,白红英,赵婷,等.秦岭陕西段南北坡植被对干湿变化响应敏感性及空间差异[J].地理学报,2021,76(1):44-56.

Chen Y P, Wang K B, Lin Y S, et al. Balancing green and grain trade[J].Nature Geoscience,2015,8(10):739-741.

Fu B J, Wang S, Liu J B, et al. Hydrogeomorphic ecosystem responses to natural and anthropogenic changes in the Loess Plateau of China[J].Annual Review of Earth and Planetary Sciences,2017,45(1):223-243.

邵明安,贾小旭,王云强,等.黄土高原土壤干层研究进展与展望[J].地球科学进展,2016,31(1):14-22.

Feng X M, Fu B J, Piao S L, et al. Revegetation in China's Loess Plateau is approaching sustainable water resource limits[J].Nature Climate Change,2016,6(11):1019-1022.

Jiao W Z, Wang L X, Smith W K, et al. Observed increasing water constraint on vegetation growth over the last three decades[J].Nature Communications,2021,12(1):e3777.

阳坤,何杰.中国区域地面气象要素驱动数据集(1979—2018) [EB /OL]. (2021-04-20). https://dx.doi.org/10.11888/AtmosphericPhysics.tpe.249369.file.

He J, Yang K, Tang W J, et al. The first high-resolution meteorological forcing dataset for land process studies over China [J /OL].Scientific Data,2020,7(1):25. https://doi.org/10.1038/s41597-020-0369-y.

Yang K, He J, Tang W J, et al. On downward shortwave and longwave radiations over high altitude regions: Observation and modeling in the Tibetan Plateau[J].Agricultural and Forest Meteorology,2010,150(1):38-46.

徐新良,刘纪远,张树文,等.中国多时期土地利用土地覆被遥感监测数据集(CNLUCC) [EB/OL].(2018-07-02). http://www.resdc.cn/DOI.

李明,葛晨昊,邓宇莹,等.黄土高原气象干旱和农业干旱特征及其相互关系研究[J].地理科学,2020,40(12):2105-2114.

Lian X, Piao S L, Chen A P, et al. Multifaceted characteristics of dryland aridity changes in a warming world[J].Nature Reviews Earth and Environment,2021,2(4):232-250.

Vicente-Serrano S M, Van der Schrier G, Beguería S, et al. Contribution of precipitation and reference evapotranspiration to drought indices under different climates[J].Journal of Hydrology,2015,526:42-54.

Li S, Liang W, Fu B J, et al. Vegetation changes in recent large-scale ecological restoration projects and subsequent impact on water resources in China's Loess Plateau[J].Science of the Total Environment,2016,569/570:1032-1039.

张琨,吕一河,傅伯杰,等.黄土高原植被覆盖变化对生态系统服务影响及其阈值[J].地理学报,2020,75(5):949-960.

谢宝妮,秦占飞,王洋,等.基于遥感的黄土高原植被物候监测及其对气候变化的响应[J].农业工程学报,2015,31(15):153-160.

张华,徐存刚,王浩.2001—2018年西北地区植被变化对气象干旱的响应[J].地理科学,2020,40(6):1029-1038.

高建伦,王晶晶,任永庆,等.毛乌素沙地降水和气温变化特征及其与植被因子的关系[J].水土保持研究,2022,29(2):200-205.

吕秀枝,郭东罡,上官铁梁.五台山冰缘地貌植物群落多样性分析[J].冰川冻土,2010,32(3):626-633.

中国科学院生态环境研究中心.中国生态系统评估与生态安全格局数据库[EB /OL].(2010-11-02)[2021-11-20].http://www.ecosystem.csdb.cn/.

Schwalm C R, Anderegg W R L, Michalak A M, et al. Global patterns of drought recovery[J].Nature,2017,548(7666):202-205.

浏览量

743

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

晋西黄土区典型人工林与天然林的植被属性对土壤水力特性的影响

黄土丘陵区不同水土保持措施坡面小区侵蚀性降雨标准

黄土高原土壤细沟输沙能力对坡度和流量的响应

黄土高原生物结皮混合群落对坡面流流体阻力特征的影响

黄土高原典型灌草植物根系生物力学特性及其相互关系