Effects of Climate Change and Human Activities on Vegetation Cover Change in the Yellow River Basin

LIU Hai; LIU Feng; ZHENG Liang

doi:10.13870/j.cnki.stbcxb.2021.04.020

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Effects of Climate Change and Human Activities on Vegetation Cover Change in the Yellow River Basin

更新时间：2025-03-12

- Effects of Climate Change and Human Activities on Vegetation Cover Change in the Yellow River Basin
- Vol. 35, Issue 4, Pages: 143-151(2021)
- 作者机构：
  
  1. 湖北大学资源环境学院,武汉,430062
  2. 武汉大学测绘遥感信息工程国家重点实验室,武汉,430079
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2021.04.020
  CLC： Q948
- Published：2021
- 稿件说明：
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LIU Hai, LIU Feng, ZHENG Liang. Effects of Climate Change and Human Activities on Vegetation Cover Change in the Yellow River Basin[J]. 2021, 35(4): 143-151.
DOI：

LIU Hai, LIU Feng, ZHENG Liang. Effects of Climate Change and Human Activities on Vegetation Cover Change in the Yellow River Basin[J]. 2021, 35(4): 143-151. DOI： 10.13870/j.cnki.stbcxb.2021.04.020.

摘要

黄河流域在我国具有重要的战略地位，是我国重要的生态屏障，定量化评估气候变化和人类活动对黄河流域植被变化影响，对政府管理决策具有重要意义。以黄河流域为研究区，分析1982—2019年归一化植被指数（normalized difference vegetation index，NDVI）时空动态变化，定量计算气候变化及人类活动对NDVI变化的贡献度，并对NDVI变化影响因素进行分区制图；在此基础上，讨论生态建设工程对植被变化的影响情况，并评估其成效。结果表明：（1）1982—2019年间黄河流域NDVI呈现显著增加趋势，变化趋势为0.002 4/a；空间上，显著退化的区域分布在流域西部和南部，显著增加的区域分布在流域中部和北部。（2）黄河流域植被变化是气候因素和人类活动共同作用的结果，研究时段内气候因素对NDVI变化的贡献度为82.74%，人类活动贡献度为17.62%，气候因素是黄河流域植被变化的主导因素，但人类活动在植被变化中的影响程度逐渐加深。（3）3个生态建设工程区植被恢复情况为三北防护林>黄河中游防护林>太行山绿化，生态建设工程对植被恢复有明显的促进作用。

Abstract

The Yellow River Basin has an important strategic position and is an important ecological barrier in China. Quantitative assessment of the impact of climate change and human activities on vegetation change in the Yellow River Basin is of great significance to government management and decision-making. Taking the Yellow River Basin as the research area

the temporal and spatial dynamic changes of normalized difference vegetation index (NDVI) from 1982 to 2019 were analyzed

the contributions of climate change and human activities on NDVI were quantitatively calculated

and the influencing factors of NDVI were mapped. On this basis

the impact of ecological construction project on vegetation change was discussed

and its effectiveness was evaluated. The results showed that: (1) From 1982 to 2019

the NDVI of the Yellow River Basin showed a significant increasing trend

with a change trend of 0.002 4/a. The regions with significant degradation in NDVI were distributed in the west and south of the basin

and the regions with significant increase in NDVI were distributed in the middle and north of the basin. (2) Vegetation change in the Yellow River Basin was the result of the joint action of climate factors and human activities. The contribution of climate factors to NDVI change was 82.74%

and the contribution of human activities was 17.62%. Climate factors were the dominant factors of vegetation change in the Yellow River Basin

but the influence of human activities in vegetation change was gradually increasing. (3) The vegetation restoration of the three ecological construction projects followed the order of the Three-North Shelter Forest Program>Shelter Forest Belt Project in Middle Reach of the Huanghe River>Afforestation of Taihang Mountain

and the ecological construction project played a significant role in promoting vegetation restoration.

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