Estimation and trend analysis of carbon emissions from forest fires in mainland China from 2011 to 2021

Ecological Informatics, Journal Year: 2024, Volume and Issue: 81, P. 102572 - 102572

Published: March 24, 2024

Language: Английский

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Post-fire forest recovery trajectory characterized by a modified LandTrendr recovery detection method: A case study of Pinus yunnanensis forests

Agricultural and Forest Meteorology, Journal Year: 2024, Volume and Issue: 354, P. 110084 - 110084

Published: June 12, 2024

Language: Английский

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Changes in Net Primary Productivity in the Wuyi Mountains of Southern China from 2000 to 2022

Forests, Journal Year: 2025, Volume and Issue: 16(5), P. 809 - 809

Published: May 13, 2025

Forest carbon sinks have faced significant challenges with the accelerating warming trend in 21st century. Net primary productivity (NPP) serves as a critical indicator of cycle forest ecosystems and is intricately influenced by both human activities climate change. This study focuses on subtropical Southern Forests China research object, using Wuyi Mountains representative area. The positive negative contributions ecologically oriented driven China’s forestry construction over past few decades were investigated along potential extreme factors affecting NPP from an altitude gradient perspective regional-scale changes novel viewpoint. MODIS NPP, climate, land use data, vegetation type transfer matrix statistical methods, utilized for this purpose. results are summarized follows. (1) From 2000 to 2022, exhibited high distribution pattern northeastern southern areas low central region, weak overall increase average annual growth increment only 0.11 gC·m−2·year−1. increased altitude, mean rate 5.0 gC·m−2·hm−1. Notably, was most pronounced range below 298 m temporal vertical dimensions. (2) In context long-term Forestry Ecological Engineering Projects Natural Protection Projects, well warming, transformation types relatively has resulted total 211.58 GgC 23 years. Specifically, showed transformation, leading decrease 119.44 GgC. expansion urban built-up lands 500 23-year period reduced 147.92 (3) climatic inhibiting nighttime temperatures June September, which significantly weakened evergreen broadleaf forests above elevation. inhibitory effect still reduction 127.36 within range, despite cumulative area conclusion, inland regions slowed after 2000, primarily due rise human-built region. provides valuable data support adaptation

Language: Английский

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Interannual Variations in Terrestrial Net Ecosystem Productivity and Climate Attribution in the Southern Hilly Region of China

Plants, Journal Year: 2024, Volume and Issue: 13(2), P. 246 - 246

Published: Jan. 15, 2024

The vegetation ecosystem in the southern hilly region of China (SHRC) plays a crucial role country’s carbon reservoir. Clarifying dynamics net primary productivity (NPP) this area and its response to climate factors context change is important for national forest ecology, management, neutrality efforts. This study, based on remote sensing meteorological data spanning period 2001 2021, aims unveil spatiotemporal patterns region, explore interannual variation characteristics with altitude, investigate NPP various factors. results indicate that from annual average had significant increasing trend 2.13 ± 0.78 g m−2 a−1. varies significantly altitude. Despite general substantial upward NPP, regions at lower elevations exhibit faster rate increase, suggesting diminishing difference different elevation ranges. overall rise temperature has positive implications while impact precipitation demonstrates noticeable spatial heterogeneity. Regions which negatively correlated are mainly concentrated areas Guangdong, Fujian, Jiangxi provinces. In contrast, other further away southeastern coast tend correlation. Over past two decades, there been an asymmetry diurnal SHRC, nighttime warming being 1.8 times daytime rate. more pronounced than changes. Understanding SHRC contributes enhancing our ability protect manage resources amidst challenges global change.

Language: Английский

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Temporal–Spatial Characteristics of Carbon Emissions and Low-Carbon Efficiency in Sichuan Province, China

Sustainability, Journal Year: 2024, Volume and Issue: 16(18), P. 7985 - 7985

Published: Sept. 12, 2024

Clarifying the temporal and spatial characteristics of regional carbon emissions low-carbon efficiency is great significance for realization peaking neutrality. This study calculated in Sichuan Province from 2015 to 2022 based on four major units: energy activity, industrial production, forestry waste disposal, its time evolution key sources were investigated. Meanwhile, Super-SBM-Undesirable model, 21 cities (states) was evaluated, heterogeneity The empirical results reveal following: (1) activity main contributor emissions, with thermal power generation terminal consumption as sectors. Inter-regional allocation could indirectly reduce emission intensity. production showed significant aggregation cement steel production. forest sink had a effect alleviating greenhouse effect. disposal small. (2) From 2022, an overall upward trend. Chengdu high level economic development, reasonable organization, continuous increase urban greening rate. Heavy such Panzhihua Deyang made efforts eliminate backward capacity transformation industries. Therefore, they first mover advantage regions transformation. Zigong, Mianyang, Suining, Leshan enjoyed favorable preferential policies energy-saving space, developmental But need actively deal problem solidification. plateau areas western relatively low, but have unique resource endowment advantages clean hydropower, so development potential strong. Cities Ya’an Bazhong faced series challenges weak geographical risk pollution haven. They

Language: Английский

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Characteristics of forest understory herbaceous vegetation and its influencing factors in biodiversity hotspots in China

Ecological Indicators, Journal Year: 2024, Volume and Issue: 167, P. 112634 - 112634

Published: Oct. 1, 2024

Language: Английский

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Türkiye Ormanlarında Net Birincil Üretimin İklim Değişkenleri ile Etkileşimi

Bartın Orman Fakültesi Dergisi, Journal Year: 2023, Volume and Issue: 25(3), P. 455 - 465

Published: Dec. 4, 2023

İklim değişikliğinin bitki örtüsü üzerindeki etkilerini araştırmak, aralarındaki etkileşimi yorumlamada faydalı bilgiler sağlamaktadır. Bu tür çalışmalar özellikle karasal ekosistemlerde önemli bir karbon deposu olan ormanlar ile iklim arasındaki karmaşık ilişkileri ortaya çıkarmak için oldukça etkilidir. çalışmada Türkiye ormanlarına odaklanılarak 2000-2019 yılları sürecinde yıllık toplam net birincil üretim (NBÜ) ortalama sıcaklık (°C) ve yağış (mm) parametreleri ilişkiler irdelenmiştir. Çalışmada, Moderate Resolution Imaging Spectroradiometer (MODIS) uydu görüntüsünden NBÜ haritası, Coordination of Information on the Environment Project (CORINE) sisteminden orman tipleri haritası Meteoroloji Genel Müdürlüğü’nden temin edilen materyal olarak kullanılmıştır. Çalışmada elde bulgulara göre en düşük 12,8 °C (2011), yüksek ise 15,1 (2010, 2018) bulunmuştur. En miktarı 2008 (493,1 mm) 2009 (793,8 yıllarında tespit edilmiştir. ormanlarında miktarları 2013 (797,1 gC m2 yıl) 2019 (795,4 Orman arasında 20 geniş yapraklı bulunmuştur (800,7 yıl). Çalışmanın genel sonucu miktarındaki kısmi azalma ormanlarının üretimini olumsuz yönde etkilememiştir. Yıllık sıcaklıktaki artış ormanların miktarlarına pozitif etki yapmıştır.

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