Spatial-temporal pattern of land ecological security at a township scale in the bortala mongolian autonomous prefecture

Haiyang, 于海洋 Yu; Fei, 张飞 Zhang; Lei, 曹雷 Cao; Juan, 王娟 Wang; Shengtian, 杨胜天 Yang

doi:10.5846/stxb201607081406

Cited by 2 publications

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“…In general, the normalization method and standard value method are used to eliminate the dimension differences. A combination of both methods is adopted in this study, in which the standard value method[36] is used if the indicators have standard values from international, national or Yunnan Province and the min-max normalization[22, 37] method is used when its standard value is absent. Because the index system is composed of two subsystems, and eco-pressure indicators and eco-support indicators are calculated separately, every index is a positive index in the corresponding system.…”

Section: Methodsmentioning

confidence: 99%

The variation differences of cultivated land ecological security between flatland and mountainous areas based on LUCC

Xie

2019

PLoS ONE

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The purpose of this study was to explore the correlations between land use/cover change and cultivated land ecological security in flatland and mountainous areas. Firstly, the spatiotemporal variation characteristics of land use/cover change are described in conjunction with ArcGIS10.5 software based on remote sensing images of 2005 and 2015. Then, by establishing a pressure-support framework as an assessment indicator system and developing an improved BP neural network model via a genetic algorithm with the help of MATLAB2016a, the spatiotemporal dynamic changes of cultivated land ecological security in Yuxi City from 2005 to 2015 are evaluated. The results showed that the transformation of farmland area accounted for a large proportion of increased constructive land and land use/cover spatial variations were significantly different among counties, which manifested the changes in farmland and the construction land in flatland areas but also facilitated a mutual transformation of forest and grass in mountainous areas. Moreover, ecological security status presented a clear difference among counties due to their different land use/cover changes. The ecological security state of the flatland expressed a higher ecological pressure and lower ecological support, so the security grade was IV. Otherwise, the ecological security was superior and the security grade was level II or I in the mountainous areas. Thus, protection strategies for ecological security should be differentiated in the flatland areas and mountainous areas due to their different ecological security status brought by land use/cover change.

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Section: Methodsmentioning

confidence: 99%

The variation differences of cultivated land ecological security between flatland and mountainous areas based on LUCC

Xie

2019

PLoS ONE

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Analysis of the Spatio-Temporal Evolution of Land Intensive Use and Land Ecological Security in Tianjin from 1980 to 2019

Liu

Han

et al. 2021

Journal of Resources and Ecology

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Spatial-temporal pattern of land ecological security at a township scale in the bortala mongolian autonomous prefecture

Cited by 2 publications

References 0 publications

The variation differences of cultivated land ecological security between flatland and mountainous areas based on LUCC

The variation differences of cultivated land ecological security between flatland and mountainous areas based on LUCC

Analysis of the Spatio-Temporal Evolution of Land Intensive Use and Land Ecological Security in Tianjin from 1980 to 2019

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