Developing a refined land use emission intensity inventory in China with land use activity-based data

IF 11.2 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Resources Conservation and Recycling Pub Date : 2025-06-13 DOI:10.1016/j.resconrec.2025.108442

Zhenhao Liu , Chaoqing Chai , Haoyang Wang , Huadong Zhu , Wenhao Niu , Ronghao Wen , Weiwei Zheng , Xiangbin Kong , Han Zhang , Bangbang Zhang

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引用次数: 0

Abstract

Current accounting of land use emission intensity (LUEI) based on specific land use activities is insufficient. This study develops a refined and spatially explicit LUEI inventory by integrating authoritative national land survey data and sophisticated land use activity data within an activity-based carbon accounting framework, alongside quantifying uncertainty using Monte Carlo simulation. The results demonstrated that from 2009 to 2021, the areas of construction land, planting garden, and forestland increased, while those of cropland, grassland, and water area decreased in China. Land use carbon emission (LUCE) consistently increased during this period, primarily driven by energy consumption. LUEI in China was estimated at 3.75 Mg C ha⁻¹, which exhibited an east-high and west-low pattern, with an uncertainty range from –21.31 % to +15.31 %. This study's LUEI accounting framework provides a transferable method foundation for international land carbon accounting, meanwhile its findings provide crucial data and scientific support for China's “dual carbon” targets.

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基于土地利用活动数据的中国土地利用排放强度精细化清单

目前基于具体土地利用活动的土地利用排放强度（LUEI）核算存在不足。本研究通过在基于活动的碳核算框架内整合权威的国家土地调查数据和复杂的土地利用活动数据，并使用蒙特卡罗模拟对不确定性进行量化，开发了一个精细且空间明确的LUEI清单。结果表明：2009 - 2021年，中国建设用地、种植园地和林地面积增加，耕地、草地和水域面积减少；土地利用碳排放（LUCE）在此期间持续增加，主要受能源消耗的驱动。中国LUEI估计为3.75毫克C ha⁻¹,表现出一个是东部和西方低头模式,不确定性范围从-21.31%到15.31%。本研究的LUEI核算框架为国际土地碳核算提供了可转移的方法基础，同时为中国的“双碳”目标提供了重要的数据和科学支撑。

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来源期刊

Resources Conservation and Recycling 环境科学-工程：环境

CiteScore

22.90

自引率

6.10%

发文量

625

审稿时长

23 days

期刊介绍： The journal Resources, Conservation & Recycling welcomes contributions from research, which consider sustainable management and conservation of resources. The journal prioritizes understanding the transformation processes crucial for transitioning toward more sustainable production and consumption systems. It highlights technological, economic, institutional, and policy aspects related to specific resource management practices such as conservation, recycling, and resource substitution, as well as broader strategies like improving resource productivity and restructuring production and consumption patterns. Contributions may address regional, national, or international scales and can range from individual resources or technologies to entire sectors or systems. Authors are encouraged to explore scientific and methodological issues alongside practical, environmental, and economic implications. However, manuscripts focusing solely on laboratory experiments without discussing their broader implications will not be considered for publication in the journal.