Results 31 to 40 of about 1,445 (135)

黄河三角洲高效生态经济区土地利用演变区域差异研究 [PDF]

open access: yes, 2016
以黄河三角洲高效生态经济区为研究区,应用1995-2010年的遥感影像及相关资料,采用多种定量模型方法开展土地利用演变的区域差异研究.结果表明全区的土地利用类型面积、类型间的转化数量、土地利用变化速度和土地利用系统的有序程度都存在明显的区域差异特征 ...
侯西勇, 袁晓兰, 邸向红
core  

Evolution Simulation and Driving Factors of Eco-spatial Carbon Sinks in Beibu Gulf Urban Agglomeration Based on FLUS-InVEST Model [PDF]

open access: yes, 2022
[Objective] The impact of future changes in the ecological space of urban agglomerations in the bay area on carbon sinks were analyzed, and the driving factors behind the changes were identified in order to provide a reference for future ecological space
Pang Yayue   +4 more
core   +1 more source

Characterizing China's Illegal Trade in Avifauna on Social Media 中国社交媒体上非法鸟类贸易的特征分析

open access: yesIntegrative Conservation, Volume 4, Issue 4, Page 616-626, December 2025.
Worldwide, illegal wildlife trade is an increasing threat to species conservation. Here, we used the social media data to characterize China's illegal online trade in avifauna for conservation implications. Our results found that 178 avian species have been posted online for illegal trading. ABSTRACT The illegal wildlife trade poses a growing threat to
Jiaping Xu, Luke Gibson, Aiwu Jiang
wiley   +1 more source

Spatiotemporal Evolution and Simulation of Future Landscape Patterns in Zhangjiajie City [PDF]

open access: yes, 2022
[Objective] The evolution characteristics of land use and landscape patterns from 2000 to 2020 and 2030 at Zhangjiajie City, Hu'nan Province were analyzed in order to propose an optimization strategy for future development of Zhangjiajie City, and to ...
Li Yuefeng   +3 more
core   +1 more source

Evaluating protected areas’ coverage of threats to terrestrial biodiversity

open access: yesConservation Biology, Volume 39, Issue 6, December 2025.
Abstract Protected areas (PAs) are vital for biodiversity conservation and have expanded globally. However, increasing pressures on biodiversity make it difficult to achieve conservation goals. Using threat probability maps based on the International Union for Conservation of Nature Red List and the World Database of Protected Areas, we analyzed the ...
Katherine Pulido‐Chadid   +2 more
wiley   +1 more source

土地利用变化研究方法的探讨——以西吉县80年代土地利用变化为例

open access: yesShuitu Baochi Xuebao, 2002
土地利用是全球变化研究的核心领域与热点问题 ,本文以西吉县 80年代土地利用变化为例 ,探讨了土地利用变化的研究方法。结果表明 ,应用不同比例尺、不同土地利用分类系统的土地利用现状图进行土地利用变化研究是可行的。其主要步骤包括 :土地利用分类系统的转化 ;空间叠加分析 ;确定土地利用类型转移概率矩阵 ;表格分析等。
柳长顺 齐实
doaj   +2 more sources

Threshold responses of floating meadow fish communities to floodplain forest cover in the lower Amazon River

open access: yesConservation Biology, Volume 39, Issue 6, December 2025.
Abstract Forest cover is positively associated with fish biomass and fisheries yield in the Amazon River floodplain, and many species enter flooded forests to feed, spawn, or seek refuge from predation. Floating macrophyte beds, known as floating meadows, in Amazon floodplains support high fish diversity and serve as nursery habitat for many fishes of ...
Sam Grinstead   +6 more
wiley   +1 more source

洱海流域水生态分区 [PDF]

open access: yes, 2012
分区边界的确定是生态分区的重要步骤,但目前多数水生态分区的边界确定以定性分析、专家判断为主。本研究以洱海流域为例,建立了一套两级分区体系。该体系基于GIS技术,用子流域作为分区基本单元,并用相关分析法,定量筛选一、二级分区指标。其中,一级分区指标为高程、坡度和植被归一化指数(NDVI),二级分区指标为农田百分比和城镇百分比。通过指标图层的叠加和重分类,合并同质性子流域,从而将洱海流域划分为5个一级区和9个二级区。藻类群落分布的验证结果表明分区合理。本研究将定量分析和子流域边界应用于水生态分区 ...
唐佳   +6 more
core  

Temporal and Spatial Characteristics of Soil Erosion in Typical Counties of Black Soil Region Based on RUSLE [PDF]

open access: yes, 2023
[Objective] The spatiotemporal characteristics of soil erosion were analyzed in order to provide a reference for soil erosion control and evaluation of soil and water conservation benefits.
Fu Bin   +6 more
core   +1 more source

Traditional knowledge promotes the protection of large old trees: A case from China's richest biocultural diversity area

open access: yesPeople and Nature, Volume 7, Issue 11, Page 2700-2713, November 2025.
Abstract Large old trees are important ecological entities in human settlements, providing cultural values and ecological services that are threatened by current and future changes in global climate, land use and disturbance regimes. Some studies suggest incorporating social and cultural significance into the conservation of large old trees.
Zhuo Cheng   +5 more
wiley   +1 more source

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