Stability of Loess Slopes Under Different Plant Root Densities and Soil Moisture Contents DOI Open Access
Lei Shi, Liangyan Yang, Biao Peng

et al.

Water, Journal Year: 2024, Volume and Issue: 16(24), P. 3558 - 3558

Published: Dec. 10, 2024

This study conducted an in-depth analysis of the landslide problem in loess hill and gully area northern Shaanxi Province, selecting site Quchaigou, Ganquan County, Yan’an City, as object to assess stability slopes under conditions different plant root densities soil moisture contents through field investigation, physical mechanics experiments numerical simulation GeoStudio model. Periploca sepium, a dominant species community, was selected simulate slope soils water contents. The showed that coefficient sepium natural density 1.263, which stable condition, but stabilized decreased with increase density. Under condition 10% content, body is 1.136, basic state, decreases clearly. results show rainfall human activities are main triggering factors for landslides, vegetation system has dual role stability: on one hand, it increases shear strength, other may promote infiltration reduce strength. In addition, high water-holding capacity permeability anisotropy lead rapid deadweight conditions, increasing risk landslides. this great significance disaster prevention mitigation regional planning construction, they also provide reference studies similar geological environments.

Language: Английский

Construction of the ecological security pattern of Mu Us sandy land on the basis of the “Source − Resistance − Corridor” theory DOI Creative Commons
Jiamin Li,

Li’e Liang,

Chao Yan

et al.

Ecological Indicators, Journal Year: 2025, Volume and Issue: 171, P. 113162 - 113162

Published: Jan. 31, 2025

Language: Английский

Citations

0
Ecological security prediction and land use conflict identification in fragile mountain cities: a case study of Longnan, China DOI
Jun Zhang, Qingyu Guan, Yuxin Shan

et al.

Journal of Cleaner Production, Journal Year: 2025, Volume and Issue: unknown, P. 145146 - 145146

Published: Feb. 1, 2025

Language: Английский

Citations

0
Assessing the spatiotemporal changes and drivers of ecological security by integrating ecosystem health and ecosystem services in Loess Plateau, China DOI
Le Hui, Hao Wang, Jiamin Liu

et al.

Journal of Geographical Sciences, Journal Year: 2025, Volume and Issue: 35(3), P. 459 - 482

Published: March 1, 2025

Language: Английский

Citations

0
The spatial-temporal evolution patterns of landslide-oriented resilience in mountainous city: A case study of Chongqing, China DOI
Haijia Wen, Junhao Huang,

L. Qian

et al.

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 370, P. 122963 - 122963

Published: Oct. 21, 2024

Language: Английский

Citations

2
Identification and Trend Analysis of Ecological Security Pattern in Mudanjiang City Based on MSPA-MCR-PLUS Model DOI Open Access

Peixuan Liu,

Ying Liu,

Tienan Li

et al.

Sustainability, Journal Year: 2024, Volume and Issue: 16(22), P. 9690 - 9690

Published: Nov. 7, 2024

The ecological security pattern plays a crucial role in maintaining ecosystem health and ensuring security. establishment of the Mudanjiang City can provide scientific basis effective support for stabilizing environment, mitigating regional human–land conflicts, rational land- use planning. This paper utilizes theory constructing an using source-resistance plane-corridor node to grade importance source areas based on connectivity index. It combines morphological spatial analysis PLUS model generate identify present value 2022 City, as well predict eight land types seven landscape under three development scenarios by 2032. A transfer matrix transfer-intensity map are introduced explore structural characteristics transfer, while four fragmentation indexes combined with principal component coefficient variation method form comprehensive different classes. Finally, 2022, is developed that establishes logical connections between land-use structure, types, transformation mechanism, sources. results follows: (1) In 23 areas, 65 corridors, 66 nodes were extracted. overall shows “U” shape openings northeast. (2) cumulative weight economic social factors resistance surface reached 51.36%. (3) response degree forest primary tertiary was highly significant, R values reaching 0.9675 −0.8746, respectively. comparative study comprehensively showed best scenario sustainable future priority scenario, where area smallest proportion but strongest disturbance fluctuation becomes key affecting City.

Language: Английский

Citations

2
Ecological Security Patterns Based on Ecosystem Services and Local Dominant Species in the Kunlun Mountains DOI Creative Commons
Jianglong Yuan, Ran Wang,

Xiaohuang Liu

et al.

Diversity, Journal Year: 2024, Volume and Issue: 16(12), P. 779 - 779

Published: Dec. 23, 2024

Constructing an ecological security pattern in ecologically fragile areas is crucial for maintaining regional stability. This study focuses on the Kunlun Mountain region, identifying sources based habitat suitability assessments and ecosystem services. An resistance evaluation index system constructed, considering topography, land use, quality. The minimum cumulative model then applied to identify corridors, with exhibiting higher currents designated as nodes. By integrating spatial characteristics of services, established. results are follows: (1) source area covers approximately 11.30% area. (2) length corridors 21,111 km, mainly distributed along valleys, gentle slopes, oasis areas. (3) nodes barriers 126.75 km2 46.75 km2, respectively. Ecological both sides Mountains, while primarily located central mountainous Mountains. (4) findings recommend establishing consisting “2 horizontal 4 vertical 5 zones” ensure integration services constructing a provides valuable decision-making tools protecting ecosystems species

Language: Английский

Citations

1
Stability of Loess Slopes Under Different Plant Root Densities and Soil Moisture Contents DOI Open Access
Lei Shi, Liangyan Yang, Biao Peng

et al.

Water, Journal Year: 2024, Volume and Issue: 16(24), P. 3558 - 3558

Published: Dec. 10, 2024

This study conducted an in-depth analysis of the landslide problem in loess hill and gully area northern Shaanxi Province, selecting site Quchaigou, Ganquan County, Yan’an City, as object to assess stability slopes under conditions different plant root densities soil moisture contents through field investigation, physical mechanics experiments numerical simulation GeoStudio model. Periploca sepium, a dominant species community, was selected simulate slope soils water contents. The showed that coefficient sepium natural density 1.263, which stable condition, but stabilized decreased with increase density. Under condition 10% content, body is 1.136, basic state, decreases clearly. results show rainfall human activities are main triggering factors for landslides, vegetation system has dual role stability: on one hand, it increases shear strength, other may promote infiltration reduce strength. In addition, high water-holding capacity permeability anisotropy lead rapid deadweight conditions, increasing risk landslides. this great significance disaster prevention mitigation regional planning construction, they also provide reference studies similar geological environments.

Language: Английский

Citations

0