Impact of landscape ecological risk change on flood in Lianshui watershed

SHENG Fei; LIU Shi-yu; DAI Yu-dian; GUAN Xing-zhong; LU Jing-yuan

PDF(2445 KB)

China Environmental Science ›› 2023, Vol. 43 ›› Issue (10) : 5466-5474.

Environmental Ecology

Impact of landscape ecological risk change on flood in Lianshui watershed

SHENG Fei¹, LIU Shi-yu¹, DAI Yu-dian¹, GUAN Xing-zhong², LU Jing-yuan²

Author information +

History +

Abstract

The Lianshui watershed located in southern Jiangxi province was selected to examine changes in landscape pattern from 1995 to 2020, as well as the temporal and spatial variation characteristics of landscape ecological risk at both the whole watershed and sub-watershed scales. The HEC-HMS model was utilized to simulate the flood process of 120 rainstorm events in the studied watershed under different landscape pattern scenarios for 1995 and 2005. Furthermore, Spearman correlation analysis was conducted to investigate the influence of changes in landscape ecological risk on floods. The results revealed that forested land constituted the primary landscape type with the highest area proportion within the watershed. However, other woodland experienced significant changes between 1995 and 2005, while construction land exhibited a substantial increase from 2005 to 2020. At the whole watershed scale, average values of the landscape ecological risk index were found to be 0.0621 (in 1995), 0.0543 (in 2005), and 0.0532 (in 2020), indicating a decreasing trend in overall landscape ecological risk, transforming from high level to low level. At a more detailed sub-watershed scale analysis, it was observed that certain sub-watersheds such as W170, W180, W210, and W260 displayed a downward trend regarding their respective levels of landscape ecological risk over time. However, W140 and W230 exhibited a dynamic change pattern characterized by an initial decrease followed by an increase. Finally, W220 demonstrated an opposite trend with an initial increase followed by a subsequent decrease. The period between 1995 and 2005 witnessed dramatic shifts in terms of landscape ecological risk levels. The average correlation coefficient values depicted in the box plots between the rate of change in the landscape ecological risk index and the rate of change in peak flow and total flood volume were 0.616and 0.603, respectively. The fluctuations observed in the landscape ecological risk within the watershed had a significant impact on flooding, with a greater influence on peak flow compared to total flood volume.

Key words

flood / HEC-HMS model / landscape ecological risk / sub-watershed / whole watershed

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

SHENG Fei, LIU Shi-yu, DAI Yu-dian, GUAN Xing-zhong, LU Jing-yuan. Impact of landscape ecological risk change on flood in Lianshui watershed[J]. China Environmental Science. 2023, 43(10): 5466-5474

References

[1] Shahid M, Cong Z, Zhang D. Understanding the impacts of climate change and human activities on streamflow:a case study of the Soan River basin, Pakistan[J]. Theoretical & Applied Climatology, 2017, 134:205-219.
[2] Croke B F W, Merritt W S, Jakeman A J. A dynamic model for predicting hydrologic response to land cover changes in gauged and ungauged catchments[J]. Journal of Hydrology, 2004,291(1/2):115-131.
[3] 盛菲,曾建玲,刘士余,等.场次暴雨条件下降雨和植被变化对洪水影响的定量评估——以彭冲涧小流域为例[J]. 应用生态学报, 2020,31(11):3805-3813. Sheng F, Zeng J L, Liu S Y, et al. Quantitatively evaluate the effects of precipitation and vegetation variation to flood under the condition of single rainstorm:A case study of Pengchongjian small watershed, Jiangxi, China[J]. Chinese Journal of Applied Ecology, 2020,31(11):3805-3813.
[4] 刘传铭.基于HEC-HMS模型的流域景观格局变化洪水效应模拟分析[D]. 福建:福建师范大学, 2018. Liu C M. The simulation analysis of the effect of landscape pattern changes on flood based on HEC-HMS[D]. Fujian:Fujian Normal University, 2018.
[5] 林炳青,陈兴伟,陈莹,等.流域景观格局变化对洪枯径流影响的SWAT模型模拟分析[J]. 生态学报, 2014,34(7):1772-1780. Lin B Q, Chen X W, Chen Y, et al. Simulations and analysis on the effects of landscape pattern change on flood and low flow based on SWAT model[J]. Acta Ecologica Sinica, 2014,34(7):1772-1780.
[6] Kim H W, Park Y. Urban green infrastructure and local flooding:The impact of landscape patterns on peak runoff in four Texas MSAs[J]. Applied Geography, 2016,77:72-81.
[7] 何庆港,蔡海生,张学玲,等.基于景观格局及元胞自动机-马尔科夫模型的县域生态风险评价——以江西省婺源县为例的实证研究[J]. 林业经济, 2020,42(8):50-63. He Q G, Cai H S, Zhang X L, et al. Assessment on ecological risk of counties based on landscape pattern and CA-Markov model:Empirical study on wuyuan county in Jiangxi province[J]. Forestry Economics, 2020,42(8):50-63.
[8] 杨伶,邓敏,王金龙,等.近40年来洞庭湖流域土地利用及生态风险时空演变分析[J]. 生态学报, 2021,41(10):3929-3939. Yang L, Deng M, Wang J L, et al. Spatial-temporal evolution of land use and ecological risk in Dongting Lake Basin during 1980~2018[J]. Acta Ecologica Sinica, 2021,41(10):3929-3939.
[9] 张学斌,石培基,罗君,等.基于景观格局的干旱内陆河流域生态风险分析——以石羊河流域为例[J]. 自然资源学报, 2014,29(3):410-419. Zhang X B, Shi P J, Luo J, et al. The ecological risk assessment of arid inland river basin at the landscape scale:A case study on Shiyang River Basin[J]. Journal of Natural Resources, 2014,29(3):410-419.
[10] Chen Y L, Zou W M, Karimian H, et al. Landscape ecological risk assessment and driving factor analysis in Dongjiang river watershed[J]. Chemosphere, 2022,307(P3):135835.
[11] Zhang X M, Du H M, Wang Y, et al. Watershed landscape ecological risk assessment and landscape pattern optimization:Take Fujiang River Basin as an example[J]. Human and Ecological Risk Assessment:An International Journal, 2021,27(9/10):2254-2276.
[12] Singh K, Kumar V. Hazard assessment of landslide disaster using information value method and analytical hierarchy process in highly tectonic Chamba region in bosom of Himalaya[J]. Journal of Mountain Science, 2018,15(4):808-824.
[13] 袁玉,方国华,陆承璇,等.基于景观生态学的城市化背景下洪灾风险评估[J]. 地理学报, 2020,75(9):1921-1933. Yuan Y, Fang G H, Lu C X, et al. Flood risk assessment under the background of urbanization based on landscape ecology[J]. Acta Geographica Sinica, 2020,75(9):1921-1933.
[14] GB/T 28592-2012降水量等级[S]. GB/T28592-2012 Precipitation Grade[S].
[15] 于航,刘学录,赵天明,等.基于景观格局的祁连山国家公园景观生态风险评价[J]. 生态科学, 2022,41(2):99-107. Yu H, Liu X L, Zhao T M, et al. Landscape ecological risk assessment of Qilian Mountain National Park based on landscape pattern[J]. Ecological Science, 2022,41(2):99-107.
[16] 刘希朝,李效顺,蒋冬梅.基于土地利用变化的黄河流域景观格局及生态风险评估[J]. 农业工程学报, 2021,37(4):265-274. Liu X C, Li X S, Jiang D M. Landscape pattern identification and ecological risk assessment using land-use change in the Yellow River Basin[J]. Transactions of the Chinese Society of Agricultural Engineering, 2021,37(4):265-274.
[17] 李向新.HEC-HMS水文建模系统原理•方法•应用[M]. 北京:中国水利水电出版社, 2015. Li X X. Principle, method and application of HEC-HMS hydrological modeling system[M]. Beijing:China Water & Power Press, 2015.
[18] 李娟芳,王文川,车沛沛,等.HEC-HMS模型和TOPMODEL模型在东庄流域山洪预报的应用研究[J]. 水电能源科学, 2019,37(3):50-53,8. Li J F, Wang W C, Che P P, et al. Application research on HEC-HMS Model and TOPMODEL Model in mountain flood forecasting of Dongzhuang Watershed[J]. Water Resources and Power, 2019,37(3):50-53,8.
[19] 王红亚,吕明辉.水文学概论[M]. 北京:北京大学出版社, 2006. Wang H Y, Lü M H. Introduction to hydrology[M]. Beijing:Peking University Press, 2006.
[20] Fei S, Shiyu L, Ting Z, et al. Quantitative assessment of the impact of precipitation and vegetation variation on flooding under discrete and continuous rainstorm conditions[J]. Ecological Indicators, 2022, 144,109477.
[21] 赵阳,余新晓,郑江坤,等.气候和土地利用变化对潮白河流域径流变化的定量影响[J]. 农业工程学报, 2012,28(22):252-260. Zhao Y, Yu X X, Zheng J K, et al. Quantitative effects of climate variations and land-use changes on annual streamflow in Chaobai river basin[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2012,28(22):252-260.
[22] 孙丽蓉,马静,周冬梅,等.石羊河流域景观生态风险时空分布特征[J]. 生态科学, 2022,41(2):194-203. Sun L R, Ma J, Zhou D M, et al. Temporal and spatial distribution characteristics of landscape ecological risk in the Shiyang River basin[J]. Ecological Science, 2022,41(2):194-203.
[23] 武泽民,余哲修,李瑶,等.滇池流域土地利用演变及景观生态安全评价研究[J]. 西南林业大学学报(自然科学), 2021,41(3):122-129. Wu Z M, Yu Z X, Li Y, et al. The Study of Land Use Evolution and Landscape Ecological Security Evaluation in Dianchi Lake Basin[J]. Journal of Southwest Forestry University (Natural Sciences), 2021, 41(3):122-129.
[24] 熊鹰,汪敏,袁海平,等.洞庭湖区景观生态风险评价及其时空演化[J]. 生态环境学报, 2020,29(7):1292-1301. Xiong Y, Wang M, Yuan H P, et al. Landscape ecological risk assessment and its spatio-temporal evolution in Dongting Lake area[J]. Ecology and Environmental Sciences, 2020,29(7):1292-1301.
[25] 张月,张飞,王娟,等.基于LUCC的艾比湖区域生态风险评价及预测研究[J]. 中国环境科学, 2016,36(11):3465-3474. Zhang Y, Zhang F, Wang J, et al. Ecological risk assessment and prediction of Ebinur Lake region based on Land use/Land cover change[J]. China Environmental Science, 2016,36(11):3465-3474.
[26] 尉芳,刘京,夏利恒,等.基于LUCC的陕西渭北旱塬区景观生态风险评价[J]. 中国环境科学, 2022,42(4):1963-1974. Wei F, Liu J, Xia L H, et al. Landscape ecological risk assessment in Weibei dryland region of Shaanxi Province based on LUCC[J]. China Environmental Science, 2022,42(4):1963-1974.