School of Environment, Beijing Normal University, Beijing 100875, People's Republic of China.
Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
Environ Sci Technol. 2023 May 23;57(20):7721-7732. doi: 10.1021/acs.est.3c00425. Epub 2023 May 10.
Forage-livestock conflict (FLC) is a major anthropogenic cause of rangeland degradation. It poses tremendous threats to the environment owing to its adverse impacts on carbon sequestration, water supply and regulation, and biodiversity conservation. Existing policy interventions focus on the in situ FLCs induced by local production activities but overlook the role of consumption activities in driving FLCs. Here, we investigate the spatiotemporal variations in China's FLCs and the domestic final consumers at the county level by combining remote sensing data and multi-regional input-output model. Results show that during 2005-2015, China's pastoralism induced an average of 82 million tons of FLCs per year. Domestic final demand was responsible for 85-93% of the FLCs in China. There was spatiotemporal heterogeneity in domestic consumption driving China's FLCs. In particular, the final demand of non-pastoral regions was responsible for around three-quarters (74-79%) of the total FLCs throughout the decade. The rangeland-based livestock raising, agricultural and sideline product processing, and catering sectors are important demand-side drivers. These findings can support targeted demand-side strategies and interregional cooperation to reduce China's FLCs, thus mitigating rangeland degradation.
草料-牲畜冲突(FLC)是草原退化的一个主要人为原因。由于其对碳封存、水供应和调节以及生物多样性保护的不利影响,它对环境构成了巨大威胁。现有的政策干预措施侧重于由当地生产活动引起的就地 FLC,但忽略了消费活动在推动 FLC 方面的作用。在这里,我们通过结合遥感数据和多区域投入产出模型,研究了中国县级的 FLC 和国内最终消费者的时空变化。结果表明,2005-2015 年期间,中国畜牧业平均每年产生 8200 万吨 FLC。国内最终需求占中国 FLC 的 85-93%。国内消费驱动中国 FLC 存在时空异质性。特别是,非牧区的最终需求在整个十年中占总 FLC 的四分之三(74-79%)左右。基于草原的畜牧业、农业和副业产品加工以及餐饮部门是重要的需求方驱动因素。这些发现可以支持有针对性的需求方战略和区域间合作,以减少中国的 FLC,从而减轻草原退化。