Assessing the relative role of climate and human activities on vegetation cover changes in the up–down stream of Danjiangkou, China

doi:10.1093/jpe/rtab082

J Plant Ecol ›› 2022, Vol. 15 ›› Issue (1): 180-195 .DOI: 10.1093/jpe/rtab082

• Research Articles • Previous Articles Next Articles

Assessing the relative role of climate and human activities on vegetation cover changes in the up–down stream of Danjiangkou, China

Hai Liu^1,2, Feng Liu^1,2, Hongmeng Yuan^1,2, Liang Zheng^3,*, and Yuan Zhang⁴

¹ Faculty of Resources and Environmental Science, Hubei University, Wuhan 430062, China, ² Key Laboratory of Regional Development and Environmental Response, Hubei University, Wuhan 430062, China, ³ State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430079, China, ⁴ Ecological Research Laboratory, Environmental Monitoring Center Station of Hubei Province, Wuhan 430071, China

^*Corresponding author. E-mail: liangzheng@whu.edu.cn

Received:2021-04-09 Revised:2021-05-18 Accepted:2021-06-28 Online:2021-08-05 Published:2022-02-01

Abstract

Abstract:

Danjiangkou Reservoir is water source of Middle Route Project of the South-to-North Water Diversion (SNWD) Project, research on the dynamic changes in vegetation cover and its influencing factors is of great significance for understanding the ecological environment of the water diversion area and formulating protection measures. In this study, the normalized difference in vegetation index (NDVI) was used to analyze the dynamic changes and influencing factors of vegetation in the upstream and downstream of Danjiangkou Dam from 1982 to 2018. The results showed that the NDVI exhibited an upward trend of 0.017 year⁻¹ (P < 0.05), and that the significantly increased area was located near the valley upstream of the dam, while the significantly decreased area was mainly distributed in the basin downstream of the dam and around the central city. The comprehensive contributions of climate and human activity factors to NDVI changes were 92.03% and 7.97%, respectively. The human activities in the upstream of the dam were mainly reflected in the ecological measures such as returning farmland to forest; the human activities at the downstream of the dam were mainly reflected in urban expansion, occupation of cultivated land and forest land by construction land.

Key words: remote sensing monitoring, NDVI, climate change, urban expansion, returning farmland to forest

摘要：

气候与人类活动对丹江口上下游植被覆盖变化的影响

丹江口水库是南水北调中线工程的水源地，研究丹江口水库植被覆盖动态变化及其影响因素，对于了解南水北调中线工程的生态环境及制定保护措施具有重要意义。本研究采用归一化植被指数(NDVI)分析了1982–2018年丹江口大坝上下游植被的动态变化及其影响因素。研究结果表明，研究时段内NDVI呈0.017year^-1的增加趋势(P < 0.05)，显著增加的区域位于大坝上游河谷附近，显著减少的区域主要分布在大坝下游流域和中心城区周围。气候变化和人类活动对NDVI变化的综合贡献率分别为92.03%和7.97%。大坝上游的人类活动主要体现在退耕还林等生态措施的实施，大坝下游的人类活动主要表现为城市扩张、建设用地占用耕地和林地等。

关键词: 遥感监测, NDVI, 气候变化, 城市扩张, 退耕还林

Hai Liu, Feng Liu, Hongmeng Yuan, Liang Zheng, and Yuan Zhang. Assessing the relative role of climate and human activities on vegetation cover changes in the up–down stream of Danjiangkou, China[J]. J Plant Ecol, 2022, 15(1): 180-195.

[1]	Brian Njoroge, Yuelin Li, Dennis Otieno, Shizhong Liu, Simin Wei, Ze Meng, Qianmei Zhang, Deqiang Zhang, Juxiu Liu, Guowei Chu, Fasih Ullah Haider and John Tenhunen. Seasonal droughts drive up carbon gain in a subtropical forest [J]. J Plant Ecol, 2023, 16(1): 0-.
[2]	Zhongmin Hu, Minqi Liang, Alan Knapp, Jianyang Xia, and Wenping Yuan. Are regional precipitation–productivity relationships robust to decadal-scale dry period? [J]. J Plant Ecol, 2022, 15(4): 711-720.
[3]	Lian Liu, Xiaoting Xu, Lei Zhang, Yaoqi Li, Nawal Shrestha, Danilo M. Neves, Qinggang Wang, Hong Chang, Xiangyan Su, Yunpeng Liu, Jianyong Wu, Dimitar Dimitrov, Zhiheng Wang and Jianquan Liu. Global patterns of species richness of the holarctic alpine herb Saxifraga: the role of temperature and habitat heterogeneity [J]. J Plant Ecol, 2022, 15(2): 237-252.
[4]	Yuan-Qi Pan, Xiu Zeng, Wen-De Chen, Xin-Ran Tang, Kui Dai, Yan-Jun Du and Xi-Qiang Song. Chilling rather than photoperiod controls budburst for gymnosperm species in subtropical China [J]. J Plant Ecol, 2022, 15(1): 100-110.
[5]	Feng-Hui Guo, Xi-Liang Li, Jing-Jing Yin, Saheed Olaide Jimoh and Xiang-Yang Hou. Grazing-induced legacy effects enhance plant adaption to drought by larger root allocation plasticity [J]. J Plant Ecol, 2021, 14(6): 1024-1029.
[6]	Kai Di, Zhongmin Hu, Mei Wang, Ruochen Cao, Minqi Liang, Genan Wu, Ruru Chen, Guangcun Hao and Yaolong Zhao. Recent greening of grasslands in northern China driven by increasing precipitation [J]. J Plant Ecol, 2021, 14(5): 843-853.
[7]	Nara O. Vogado, Michael J. Liddell, Susan G. W. Laurance , Mason J. Campbell, Alexander W. Cheesman , Jayden E. Engert, Ana C. Palma , Françoise Y. Ishida and Lucas A. Cernusak. The effects of an experimental drought on the ecophysiology and fruiting phenology of a tropical rainforest palm [J]. J Plant Ecol, 2020, 13(6): 744-753.
[8]	Norbert Kunert, and Ivana Tomaskova. Leaf turgor loss point at full hydration for 41 native and introduced tree and shrub species from Central Europe [J]. J Plant Ecol, 2020, 13(6): 754-756.
[9]	Antony N. Waigwa, Brian Njoroge Mwangi, Gituru R. Wahiti, Fred Omengo, Yadong Zhou and Qingfeng Wang. Variation of morphological and leaf stoichiometric traits of two endemic species along the elevation gradient of Mount Kenya, East Africa [J]. J Plant Ecol, 2020, 13(6): 785-792.
[10]	Kelly A. Steinberg, Kim D. Eichhorst and Jennifer A. Rudgers. Riparian plant species differ in sensitivity to both the mean and variance in groundwater stores [J]. J Plant Ecol, 2020, 13(5): 621-632.
[11]	Min Long, Juanjuan Zhang, Zhengyi Liu, Luyao Zhou, Fanglong Su, Rui Xiao, Yi Wang, Hui Guo and Shuijin Hu . Can the scaling of plant nitrogen to phosphorus be altered by global change? An empirical test [J]. J Plant Ecol, 2020, 13(4): 442-449.
[12]	Alexander Zogas, Evsey Kosman and Marcelo Sternberg. Germination strategies under climate change scenarios along an aridity gradient [J]. J Plant Ecol, 2020, 13(4): 470-477.
[13]	Yaoqi Li, Dongting Zou, Nawal Shrestha, Xiaoting Xu, Qinggang Wang, Wen Jia and Zhiheng Wang. Spatiotemporal variation in leaf size and shape in response to climate [J]. J Plant Ecol, 2020, 13(1): 87-96.
[14]	Aamir Latif, Sana Ilyas, Yangjian Zhang, Yuqin Xin, Lin Zhou and Quan Zhou. Review on global change status and its impacts on the Tibetan Plateau environment [J]. J Plant Ecol, 2019, 12(6): 917-930.
[15]	Zhiheng Wang, Yaoqi Li, Xiangyan Su, Shengli Tao, Xiao Feng, Qinggang Wang, Xiaoting Xu, Yunpeng Liu, Sean T. Michaletz, Nawal Shrestha, Markku Larjavaara, and Brian J. Enquist. Patterns and ecological determinants of woody plant height in eastern Eurasia and its relation to primary productivity [J]. J Plant Ecol, 2019, 12(5): 791-803.

Assessing the relative role of climate and human activities on vegetation cover changes in the up–down stream of Danjiangkou, China

HTML

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments