Spatial-temporal patterns of ecological-environmental attributes within different geological-topographical zones: a case from Hailun District, Heilongjiang Province, China DOI Creative Commons
Zhuo Chen, Tao Liu,

Ke Yang

et al.

Frontiers in Environmental Science, Journal Year: 2024, Volume and Issue: 12

Published: July 10, 2024

The climate change and extension of human activities are shedding more stresses on ecosystems. Ecological zoning could help manage the ecosystem deal with environmental problems effectively. Geology topography affect ecology primarily vital perspectives ecological zoning. It is worth preliminarily understanding spatial-temporal patterns ecological-environmental attributes within various geological-topographical zones (GTEZs). objective this study was to delineate GTEZs present a analysis soil land surface parameters GTEZs. Firstly, Landsat imageries, high resolution satellite imagery products, digital elevation model, regional geological map, black thickness, bulk density, meteorological data, ground survey were collected conducted. Secondly, in Hailun District delineated according topographical background. Thirdly, composition, monthly temperature (LST), enhanced vegetation index (EVI), net primary productivity (NPP) derived from imageries. Finally, different revealed analyzed. Results show that sand alluvial plain zone silt-clay undulating mainly possess thick fine-medium granule higher covered by crops grass, flourish most August highest EVI NPP. While sand-conglomerate hill zone, sandstone granite relatively thin medium-coarse lower forest, June July, has yearly total With thinner thickness NPP, tend have vulnerability disturbance contribution carbon neutrality target.

Language: Английский

Driving mechanism of natural vegetation response to climate change in China from 2001 to 2022 DOI
Xuelian Bai, Zhiwei Zhang, Dongqi Gu

et al.

Environmental Research, Journal Year: 2025, Volume and Issue: unknown, P. 121529 - 121529

Published: April 1, 2025

Language: Английский

Citations

0
Response of vegetation variation to climate change and human activities in the Shiyang River Basin of China during 2001–2022 DOI Creative Commons

Chao Sun,

Xuelian Bai, Xin‐ping Wang

et al.

Journal of Arid Land, Journal Year: 2024, Volume and Issue: 16(8), P. 1044 - 1061

Published: July 26, 2024

Abstract Understanding the response of vegetation variation to climate change and human activities is critical for addressing future conflicts between humans environment, maintaining ecosystem stability. Here, we aimed identify determining factors explore sensitivity temperature (SVT) precipitation (SVP) in Shiyang River Basin (SYRB) China during 2001–2022. The data from climatic research unit (CRU), index Moderate Resolution Imaging Spectroradiometer (MODIS), land use Landsat images were used analyze spatial-temporal changes indices, climate, SYRB its sub-basins (i.e., upstream, midstream, downstream basins) Linear regression analysis correlation SVT SVP, revealing driving variation. Significant increasing trends ( P <0.05) detected enhanced (EVI) normalized difference (NDVI) 2001–2022, with most regions (84%) experiencing significant vegetation, was determined as dominant factor Non-significant decreasing SVP There spatial differences variation, SVT, SVP. Although NDVI EVI exhibited basins, slope basin lower than those upstream midstream higher basins. Temperature controlled basins while (land change) dominated basin. We concluded that there a heterogeneity across different SYRB. These findings can enhance our understanding relationship among change, activities, provide reference environment arid inland river

Language: Английский

Citations

2
Interplay of Environmental Shifts and Anthropogenic Factors with Vegetation Dynamics in the Ulan Buh Desert over the Past Three Decades DOI Open Access
Yanqi Liu, Fucang Qin, Long Li

et al.

Forests, Journal Year: 2024, Volume and Issue: 15(9), P. 1583 - 1583

Published: Sept. 10, 2024

In arid and semiarid regions, vegetation provides essential ecosystem services, especially retarding the desertification process. Vegetation assessment through remote sensing data is crucial in understanding responses to climatic factors large-scale human activities. This study analyzed cover changes Ulan Buh Desert from 1989 2019, focusing on impacts of activities key meteorological factors. The results showed that both contributed an increasing trend (normalized difference index (NDVI)) over 30-year period. Temperature precipitation significantly affected NDVI desert, with temperature having a more substantial influence. combined impact average was notable. Human caused restoration area desert be approximately 35% 2019. were primary influencers, responsible for about 60% across area. Especially 2004 conversion farmland driven by dominated region’s increase. research underscores importance considering managing dynamics areas like Desert. By integrating these factors, policymakers land managers can develop effective strategies sustainable management combating desertification.

Language: Английский

Citations

1
Effects of Soil Nutrient Restoration Aging and Vegetation Recovery in Open Dumps of Cold and Arid Regions in Xinjiang, China DOI Creative Commons

Zhongming Wu,

Weidong Zhu,

Haijun Guo

et al.

Land, Journal Year: 2024, Volume and Issue: 13(10), P. 1690 - 1690

Published: Oct. 16, 2024

Open-pit coal mining inevitably damages the soil and vegetation in areas. Currently, restoration of cold arid open-pit mines Xinjiang, China, is still initial exploratory stage, especially changes nutrients spoil dumps over time. Dynamic remote sensing monitoring areas their correlation are relatively rare. Using Heishan Open Pit as a case, samples were collected during different discharge periods to analyze uncover mechanisms. Based on four Landsat images from 2018 2023, ecological index (RSEI) fractional cover (FVC) obtained evaluate effect mine restoration. Additionally, between was analyzed. The results indicated that (i) contents nitrogen (N), phosphorus (P), potassium (K), organic matter (OM) increased with duration period. (ii) When time dump exceeds 5 years, N, P, K, OM content higher than original surface-covered area. (iii) Notably, under same aging, artificial demonstration base had significantly these compared naturally restored dump. (iv) Over past five RSEI FVC showed an overall upward trend. slope remediation project values (v) Air humidity surface temperature identified key natural factors affecting open pit. coefficients nutrient coverage 0.78, indicating close complementary relationship two. above can clarify time–effect recovery further promoting research practice technology pits.

Language: Английский

Citations

1
Spatial-temporal patterns of ecological-environmental attributes within different geological-topographical zones: a case from Hailun District, Heilongjiang Province, China DOI Creative Commons
Zhuo Chen, Tao Liu,

Ke Yang

et al.

Frontiers in Environmental Science, Journal Year: 2024, Volume and Issue: 12

Published: July 10, 2024

The climate change and extension of human activities are shedding more stresses on ecosystems. Ecological zoning could help manage the ecosystem deal with environmental problems effectively. Geology topography affect ecology primarily vital perspectives ecological zoning. It is worth preliminarily understanding spatial-temporal patterns ecological-environmental attributes within various geological-topographical zones (GTEZs). objective this study was to delineate GTEZs present a analysis soil land surface parameters GTEZs. Firstly, Landsat imageries, high resolution satellite imagery products, digital elevation model, regional geological map, black thickness, bulk density, meteorological data, ground survey were collected conducted. Secondly, in Hailun District delineated according topographical background. Thirdly, composition, monthly temperature (LST), enhanced vegetation index (EVI), net primary productivity (NPP) derived from imageries. Finally, different revealed analyzed. Results show that sand alluvial plain zone silt-clay undulating mainly possess thick fine-medium granule higher covered by crops grass, flourish most August highest EVI NPP. While sand-conglomerate hill zone, sandstone granite relatively thin medium-coarse lower forest, June July, has yearly total With thinner thickness NPP, tend have vulnerability disturbance contribution carbon neutrality target.

Language: Английский

Citations

0