Construction of Cross-basin Ecological Security Patterns Based on Carbon Sinks and Landscape Connectivity

被引：1

作者：

Han, Meng-Wei ^{[1
,2
]}

Zhang, Shuai-Pu ^{[1
,2
]}

Xu, Qin-Xue ^{[1
,2
]}

Dai, Jun-Feng ^{[1
,2
]}

Huang, Guang-Ling ^{[1
,2
]}

机构：

[1] Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area, Guilin University of Technology, Guilin

[2] Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin

来源：

Huanjing Kexue/Environmental Science | 2024年 / 45卷 / 10期

关键词：

carbon storage; ecological security pattern; ecological sources; InVEST model; Xiang-Li linkage area;

D O I：

10.13227/j.hjkx.202310035

中图分类号：

学科分类号：

摘要：

Artificial water system creation and land use changes have great effects on ecosystems. The construction of cross-basin ecological security patterns based on carbon sinks and landscape connectivity plays a key role in regional ecological environment protection. The linkage area between the Xiang River and the Li River was selected as the research object. Based on the land use data from 2000 to 2020,this study examined the ecological security network of the Xiang-Li connected region using the InVEST model combined with morphological spatial pattern analysis(MSPA)and evaluated the temporal and spatial evolution of carbon storage and ecological security patterns. The results showed that:① From 2000 to 2020,the land cover types of the Xiang-Li linkage area were mainly forest land and arable land. The changes of land use types were characterized by decreases in arable land, forest land,and grassland and by increases in watersheds and construction land. ② The carbon storage in the Xiang-Li linkage area was characterized by a blocky distribution,and the high and medium areas were dominant. The carbon stock increased slowly from 2000 to 2010 and decreased dramatically from 2010 to 2020,with a cumulative decrease of 18.32×103 t due to the influence of land use changes. ③ The area of ecological sources(five in total)decreased firstly and then increased,whereas the length of ecological corridors(ten in total) increased firstly and then decreased in the Xiang-Li linkage area. Overall,in the process of urbanization,the distribution of the high ecological resistance value in the Xiang-Li linkage area gradually shifted to the northeast with an expansion,whereas the barycenter of the ecological safety pattern shifted to the southwest. Determining the dynamic distribution and stability of ecological sources by coupling carbon storage patches and landscape patterns can provide a new way to construct ecological security patterns in cross-basin ecosystems. © 2024 Science Press. All rights reserved.

引用

页码：5844 / 5852

页数：8

共 43 条

[1]

An M, Xie P, He W J, Et al., Spatiotemporal change of ecologic environment quality and human interaction factors in three gorges ecologic economic corridor, based on RSEI [J], Ecological Indicators, 141, (2022)

[2]

Liu J, Ma Y T, Wang X L, Et al., Impact of land use type on the stability and organic carbon content of soil aggregates in the Weibei Dryland[J], Environmental Science, 40, 7, pp. 3361-3368, (2019)

[3]

Yu G R, Fang H J, Fu Y L, Et al., Research on carbon budget and carbon cycle of terrestrial ecosystems in regional scale:a review [J], Acta Ecologica Sinica, 31, 19, pp. 5449-5459, (2011)

[4]

Wang Y, Guo C H, Chen X J, Et al., Carbon peak and carbon neutrality in China:goals,implementation path and prospects[J], China Geology, 4, 4, pp. 720-746, (2021)

[5]

Fang G C, Tian L X, Fu M, Et al., The effect of energy construction adjustment on the dynamical evolution of energy-saving and emission-reduction system in China[J], Applied Energy, 196, pp. 180-189, (2017)

[6]

Zheng T L, Zhu J L, Wang S P, Et al., When will China achieve its carbon emission peak?, National Science Review, 3, 1, pp. 8-12, (2016)

[7]

Shi D, Guan J W, Liu J P., Ecological security evaluation of tourism towns based on DPSIR-EES-matter element[J], Acta Ecologica Sinica, 41, 11, pp. 4330-4341, (2021)

[8]

Yu K J., Landscape ecological security patterns in biological conservation[J], Acta Ecologica Sinica, 19, 1, pp. 8-15, (1999)

[9]

Xue Q, Lu L, Niu R, Et al., Identification and restoration of key areas of ecological security pattern based on sensitivity to geological disasters:a case study of Jinan City[J], Acta Ecologica Sinica, 41, 22, pp. 9050-9063, (2021)

[10]

Mao C R, Dai L M, Qi L, Et al., Constructing ecological security pattern based on ecosystem services:a case study in Liaohe River Basin, Liaoning Province, China[J], Acta Ecologica Sinica, 40, 18, pp. 6486-6494, (2020)

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