Resources Environment and Sustainability最新文献_第3页

High-efficiency and green recycling of manganese, nickel, cobalt, and zinc in a hydrogen peroxide–sulfuric acid system from electrolytic manganese dioxide sulfide slag 在双氧水-硫酸体系中从电解硫化锰渣中高效、绿色回收锰、镍、钴和锌

IF 7.8 Q1 ENVIRONMENTAL SCIENCES

Resources Environment and Sustainability

Pub Date : 2025-11-03 DOI: 10.1016/j.resenv.2025.100278

Panpan Mu (穆攀攀) , Meichen Pan (潘美晨) , Zixiu Li (李子秀) , Guosai Jiang (蒋国赛) , Zhe Tan (谭哲) , Xiaoguang Zhang (张晓光) , Gang Fang (方刚) , De'an Pan (潘德安)

Electrolytic manganese dioxide sulfidation slag (EMDSS) is a hazardous waste generated during the production of electrolytic manganese dioxide (EMD), containing strategic metal resources such as nickel (Ni), cobalt (Co), and manganese (Mn), with a total content exceeding 10.00 %. Currently, the recovery of strategic metals from EMDSS has received limited attention, and existing methods are inefficient, accompanied by the risk of H₂S gas generation. This study proposes a hydrogen peroxide-sulfuric acid (H₂O₂-H₂SO₄) leaching process to address these challenges and recover strategic metals such as Mn, Ni, Co, and zinc (Zn) from EMDSS. Optimal process parameters were determined through single-factor and response surface optimization experiments. Thermodynamic, kinetic, and characterization analyses were conducted to elucidate the reaction process and mechanism of H₂O₂-H₂SO₄ leaching. In an acidic environment, sulfide ion (S²⁻) and oxygen ion (O⁻) exhibit strong redox reactivity, directly converting into sulfate ion (SO₄²⁻) without generating hydrogen sulfide (H₂S) gas. The 20 × magnified experiments demonstrated that the average leaching rates of Mn, Ni, Co, and Zn exceeded 99.20 %, with deviations between the measured and predicted values within 1.00 %. The proposed new process achieves over 99.00 % recovery of strategic metals such as Ni, Co, Mn, and Zn, providing raw materials for the subsequent resource utilization of strategic metals. Moreover, stable large-scale experimental results indicate its potential for industrial-scale application, expanding the raw material sources for Ni, Co, and Mn new energy metals.

电解二氧化锰硫化渣（EMDSS）是电解二氧化锰（EMD）生产过程中产生的危险废弃物，含有镍（Ni）、钴（Co）、锰（Mn）等战略性金属资源，总含量超过10.00%。目前，从EMDSS中回收战略金属受到的关注有限，现有方法效率低下，并且存在产生H2S气体的风险。本研究提出了一种过氧化氢-硫酸（H2O2-H2SO4）浸出工艺，以解决这些挑战，并从EMDSS中回收Mn， Ni， Co和锌（Zn）等战略金属。通过单因素试验和响应面优化试验确定了最佳工艺参数。通过热力学、动力学和表征分析，阐明了H2O2-H2SO4浸出的反应过程和机理。在酸性环境中，硫离子（S2−）和氧离子（O−）表现出较强的氧化还原活性，直接转化为硫酸盐离子（SO42−），不产生硫化氢（H2S）气体。20倍放大实验表明，Mn、Ni、Co、Zn的平均浸出率均超过99.20%，实测值与预测值偏差在1.00%以内。新工艺对Ni、Co、Mn、Zn等战略金属的回收率达到99.00%以上，为后续战略金属资源化利用提供了原料。此外，稳定的大规模实验结果表明其具有工业规模应用的潜力，扩大了Ni， Co和Mn新能源金属的原料来源。

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引用次数: 0

Optimizing the use of pyrolysis waste oil as a feedstock for the naphtha cracking process by hydrotreating and hydrocracking 优化利用热解废油作为石脑油加氢处理加氢裂化工艺的原料

IF 7.8 Q1 ENVIRONMENTAL SCIENCES

Resources Environment and Sustainability

Pub Date : 2025-10-26 DOI: 10.1016/j.resenv.2025.100277

Suk Hyun Lim , Hai Hung Pham , Eun Hee Kwon , Nam Sun Nho

In this study, a process using hydroprocessing technology was investigated to utilize waste plastic pyrolysis oil (WPPO) produced from a 10-ton/day commercial rotary kiln pyrolysis reactor as feedstock for the naphtha cracking center (NCC) process. Experiments were conducted using two continuous processes with different capacities to perform hydroprocessing and hydrocracking reactions. Reactivity according to feedstock processing, reaction stages, and process configuration, as well as the effects of process operating variables, were evaluated. Hydrocracking of the hydrotreated WPPO was found to result in particularly high performance compared to the single hydrocracking reaction alone. As the reaction severity increased, the yield and impurity reduction improved, finally achieving an impurity content close to commercial naphtha and a naphtha yield of approximately 93.3 wt%. Additionally, hydrogen consumption was confirmed to be comparable to that in conventional oil refineries. This study confirmed that the operating conditions can be adjusted according to the desired yield and impurity content levels or the feed ratio to the NCC process, to select the appropriate operating conditions, and that commercial-level naphtha or naphtha suitable for the specifications of the NCC process can be produced from WPPO.

以10吨/天商业回转窑热解反应器生产的废塑料热解油（WPPO）为原料，采用加氢工艺进行了石脑油裂解中心（NCC）工艺研究。实验采用两种不同容量的连续工艺进行加氢加工和加氢裂化反应。根据原料处理、反应阶段和工艺配置以及工艺操作变量的影响，对反应性进行了评估。经加氢处理的WPPO加氢裂化反应与单独加氢裂化反应相比，具有特别高的性能。随着反应强度的增加，收率和杂质降低率提高，最终得到的杂质含量接近商品石脑油，石脑油收率约为93.3 wt%。此外，氢的消耗被证实与传统炼油厂相当。本研究证实，可根据期望的产率和杂质含量水平或NCC工艺的进料比调整操作条件，选择合适的操作条件，从WPPO中可以生产出商品级或适合NCC工艺规格的石脑油。

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引用次数: 0

Gastrointestinal modification based on probiotic feed additive enviro-alleviators to reduce enteric methane production in ruminant and non-ruminant livestock 基于益生菌饲料添加剂环境缓解剂的胃肠道改造以减少反刍和非反刍牲畜肠道甲烷的产生

IF 7.8 Q1 ENVIRONMENTAL SCIENCES

Resources Environment and Sustainability

Pub Date : 2025-10-15 DOI: 10.1016/j.resenv.2025.100276

Benjamin Ndeshipanda Kashenye , Jiachao Zhang

Abatement of livestock enteric-produced methane (CH₄) has become an avenue of interest to improve global economical and environmental burdens. Among these approaches, probiotic feed additives (PFAs) are increasingly pointed out in literature to potentially facilitate effective gastrointestinal tract (GIT) microbiome manipulation. These modulations aim to improve enteric fermentation without harming livestock health or productivity, while also reducing CH₄ emissions to help ease food supply chain pressures. Agricultural by-product wastes have increased over the previous three decades, and notably, PFAs are also proposed as livestock feedstuff nutrient availability enhancers. While numerous studies have examined the effects of PFAs on fermentation parameters, direct comparative investigations into their specific impact on GIT CH₄ profiles across both ruminant and non-ruminant species remain limited in literature. Herein, we characterize and summarize the CH₄ status reported by previous studies based on dictating GIT fermentative parameters of ruminants and non-ruminants supplemented with PFAs, along with their corresponding comparable CH₄-reducing mechanism pathway. Simultaneously, we also evaluate PFA species for their potential to reduce enteric-produced CH₄ in livestock, alongside their intricate optimizing implications and delivery efficacy within farming systems. Justifiably, livestock productivity remains vital, as farming remains an essential practice for humans to derive dietary commodities. This review provides connected insights into existing gaps and prospective opportunities to better understand host-microbiome interactions in reducing agricultural CH₄ emissions, aiding farmers to better grasp the application potential of PFAs as a possible sustainable practice for future livestock-derived food security.

减少家畜肠道产生的甲烷（CH4）已成为改善全球经济和环境负担的重要途径。在这些方法中，越来越多的文献指出益生菌饲料添加剂（PFAs）可能有助于有效地控制胃肠道（GIT）微生物群。这些调节的目的是在不损害牲畜健康或生产力的情况下改善肠道发酵，同时减少甲烷排放，以帮助缓解食品供应链的压力。在过去的三十年中，农业副产品废物有所增加，值得注意的是，PFAs也被提出作为牲畜饲料的营养有效性增强剂。虽然已有大量研究考察了PFAs对发酵参数的影响，但文献中对其对反刍动物和非反刍动物GIT CH4谱的具体影响的直接比较研究仍然有限。本文在确定添加PFAs的反刍动物和非反刍动物的GIT发酵参数的基础上，对以往研究报道的CH4状态进行了表征和总结，并对其对应的CH4还原机制途径进行了比较。同时，我们还评估了PFA物种减少牲畜肠道产生CH4的潜力，以及它们在农业系统中复杂的优化意义和输送效率。有理由认为，牲畜生产力仍然至关重要，因为农业仍然是人类获取膳食商品的基本做法。这篇综述提供了对现有差距和未来机会的相关见解，以更好地了解宿主-微生物组在减少农业CH4排放中的相互作用，帮助农民更好地掌握PFAs的应用潜力，作为未来牲畜来源的粮食安全的一种可能的可持续做法。

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引用次数: 0

Integrating deep learning with patch-based multilevel cellular automata for urban growth simulation: A case study of the Pearl River Delta urban agglomeration 融合深度学习与基于斑块的多层次元胞自动机的城市增长模拟——以珠三角城市群为例

IF 7.8 Q1 ENVIRONMENTAL SCIENCES

Resources Environment and Sustainability

Pub Date : 2025-09-30 DOI: 10.1016/j.resenv.2025.100275

Hongjiang Guo, Yanpeng Cai, Zixuan Qi, Bowen Li, Dianheng Jiang

Accurate modeling of urban spatial dynamics is crucial for regional land resource allocation and sustainable development. However, most existing studies lack spatiotemporal collaborative considerations of historical development processes when mining transition rules for cellular automata (CA)-based modeling. Traditional pixel-based spatial units also tend to produce fragmented simulation results that are inconsistent with reality. To address these gaps, this study proposed a novel spatiotemporal collaborative convolutional and patch-based multilevel CA (SC-Pb-CA) model and applied it to simulate urban growth in the Pearl River Delta (PRD) urban agglomeration. The results revealed that the SC-Pb-CA model outperformed the other traditional hybrid models in terms of simulation accuracy, with the kappa and figure of merit (FoM) indices increasing by 0.011–0.049 and 3.9 %–28 %, respectively. Multiscenario simulations indicated that the urban expansion trend in the PRD region remains significant in the future, particularly under the economic development priority (EDP) scenario, with projected increases reaching 17.86 × 10⁴ ha, 30.23 × 10⁴ ha, and 48.12 × 10⁴ ha by 2025, 2035, and 2050, respectively. The integrated economic–ecological development (IEED) scenario resulted in an urban land area of 80.34 × 10⁴ ha by 2035, which does not exceed the 1.3-fold upper limit stipulated in regional planning, making it more aligned with future sustainable development requirements. These findings emphasize the need for coordinated regional ecological and economic development. They also revealed the importance of strategies such as infilling development, cross-regional coordination, and ecological reflux for promoting sustainable urban spatial development in the PRD. This study provides new theoretical support for urban expansion simulation research and offers scientific guidance for regional urban spatial planning.

准确的城市空间动态建模对区域土地资源配置和可持续发展至关重要。然而，大多数现有研究在挖掘基于元胞自动机（CA）的建模转换规则时，缺乏对历史发展过程的时空协同考虑。传统的基于像素的空间单元也容易产生碎片化的模拟结果，与现实不一致。为了解决这些问题，本研究提出了一种基于时空协同卷积和斑块的多层CA （SC-Pb-CA）模型，并将其应用于珠江三角洲城市群的城市增长模拟。结果表明，SC-Pb-CA模型在仿真精度上优于其他传统混合模型，kappa和FoM指数分别提高0.011 ~ 0.049和3.9% ~ 28%。多情景模拟结果表明，在经济发展优先（EDP）情景下，珠三角地区未来的城市扩张趋势仍然明显，预计到2025年、2035年和2050年，珠三角地区的城市扩张将分别达到17.86 × 104 ha、30.23 × 104 ha和48.12 × 104 ha。经济生态一体化发展情景下，2035年城市用地面积为80.34 × 104 ha，不超过区域规划1.3倍的上限，更符合未来可持续发展要求。这些研究结果强调了区域生态与经济协调发展的必要性。研究还揭示了填充发展、跨区域协调和生态回流等战略对促进珠三角城市空间可持续发展的重要性。该研究为城市扩展模拟研究提供了新的理论支持，为区域城市空间规划提供了科学指导。

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引用次数: 0

Calcium-rich bone biochar boosts fat, oil, and grease (FOG) biodegradability: Methane maximization and microbial community pattern 富钙骨生物炭提高脂肪、油和油脂（FOG）的可生物降解性：甲烷最大化和微生物群落模式

IF 7.8 Q1 ENVIRONMENTAL SCIENCES

Resources Environment and Sustainability

Pub Date : 2025-09-26 DOI: 10.1016/j.resenv.2025.100274

Ting Li , Shah Faisal , Jialing Tang , Mahdy Elsayed , Nousheen Iqbal , Ye Pu , Joachim Henjes , Stephan Ende , Abdelfatah Abomohra

The present study evaluated calcium-rich bone biochar, derived from pig and chicken bones, for enhanced anaerobic digestion of FOG (fat, oil, grease). The study aimed to maximise energy recovery by reducing the negative impact of long-chain fatty acids (LCFAs) and to evaluate the subsequent effect on the microbial community structure. A series of 2.0 % FOG batch trials was prepared, adding pig bone biochar (PB) and chicken bone biochar (CB) based on their calcium (Ca) content to maintain (0.1, 0.5, and 1.0 % Ca concentrations). Parallelly, Ca was used at the same concentrations without biochar. Supplementation of 0.5 % PB, CB, and Ca individually enhanced LCFAs degradation up to 81.6 %, 81.0 %, and 84.8 %, respectively. Therefore, the accumulative methane yield increased by 4-, 3.9-, and 5.2-fold over the control FOG2.0 %. Reduction in methane production was observed at 1.0 % PB, CB, and Ca compared with 0.5 % but, interestingly, 1.0 % PB and CB showed higher accumulative methane yield of 135.6 mL g⁻¹ VS and 125.3 mL g⁻¹ VS, respectively, in comparison to Ca (60.7 mL g⁻¹ VS). There was enhancement in Firmicutes and Campylobacteriotes, accompanied by a simultaneous rise in Methanosarcina at 0.5 % PB (from 23.7 % to 78.1 %) and Methanoculleus at 0.5 % Ca (from 41.3 % to 50.0 %). Ca-rich PB and CB biochar significantly enhanced FOG anaerobic digestion through synergistic mechanisms, including reducing inhibition, stimulating microbes, facilitating electron transfer, and improving nutrient supply. Using animal bone residues for FOG anaerobic digestion provides both a sustainable waste management route and an efficient calcium-rich material to boost energy recovery.

本研究评估了从猪和鸡骨头中提取的富钙骨生物炭，以增强对FOG（脂肪、油、油脂）的厌氧消化。该研究旨在通过减少长链脂肪酸（LCFAs）的负面影响来最大化能量回收，并评估其对微生物群落结构的后续影响。制备了一系列2.0% FOG批量试验，根据猪骨生物炭（PB）和鸡骨生物炭（CB）的钙含量分别添加，以维持（0.1、0.5和1.0%的钙浓度）。同时，在不使用生物炭的情况下，在相同浓度下使用Ca。添加0.5%的PB、CB和Ca分别提高了LCFAs的降解率，分别达到81.6%、81.0%和84.8%。因此，累积甲烷产量比对照FOG2.0 %分别提高了4倍、3.9倍和5.2倍。1.0%的PB、CB和Ca与0.5%相比，甲烷产量减少，但有趣的是，1.0%的PB和CB的累积甲烷产量分别为135.6 mL g−1 VS和125.3 mL g−1 VS，高于Ca （60.7 mL g−1 VS）。厚壁菌门（Firmicutes）和弯曲菌门（campylobacteria）的数量增加，同时在0.5% PB条件下Methanosarcina（从23.7%增加到78.1%）和0.5% Ca条件下Methanoculleus（从41.3%增加到50.0%）的数量也增加。富钙PB和CB生物炭通过减少抑制、刺激微生物、促进电子转移和改善养分供应等协同机制显著促进FOG厌氧消化。使用动物骨骼残留物进行FOG厌氧消化既提供了可持续的废物管理途径，又提供了有效的富钙材料，以促进能量回收。

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引用次数: 0

Environmental advantages of green-labelled navel oranges in China: A supply chain perspective 绿色标签脐橙在中国的环境优势：供应链视角

IF 7.8 Q1 ENVIRONMENTAL SCIENCES

Resources Environment and Sustainability

Pub Date : 2025-09-25 DOI: 10.1016/j.resenv.2025.100273

Ruijin Luo , Junhan Zhang , Petronella Margaretha Slegers , Minghao Zhuang , Zhihua Zhang , Xian Zhang , Xuexian Li , G.D.H. Claassen

Quantifying the environmental performance (EP) of citrus supply chains (SCs) via life cycle assessment is important for optimising fruit production for sufficient vitamin and micronutrient provision at lower environmental costs. As a part of national programme in China, green-labelled navel oranges use up to 50.0 % less chemical nitrogen fertilisers and become increasingly popular for their high quality. However, their EP remain unclear from the full SC perspective, and critical indicators, e.g. ecotoxicity and land occupation potential (LOP), have been mostly neglected in previous studies. Based on interviews with orange SC (OSC) stakeholders, this study analyses eleven ReCiPe2016 (H) midpoint indicators and normalises characterised results, followed by Monte Carlo simulation, to compare the EP of conventional, green-labelled, and organic-labelled OSCs from production to consumption. Green-labelled OSCs show lower impacts across most categories. Specifically, they reduce the LOP by 72.6 % compared with organic-labelled OSCs and decrease the ozone depletion potential by 65.5 % relative to conventional OSCs. Their total environmental index is 31.4 % and 24.5 % lower than conventional and organic-labelled OSCs, respectively. Packaging, transport, and production are significant contributing stages. Key contributing inputs include nitrogen fertiliser, corrugated boxes, long-distance transport, and land use. Beyond well-recognised fossil fuel potential, terrestrial ecotoxicity potential and LOP are newly identified critical indicators for OSC evaluation. Thus, green-labelled OSCs represent a more environment-friendly model for high-yield and high-quality fruit supply. This multi-stage and multi-indicator approach offers a transferable framework for comprehensive evaluation and optimisation of fruit SCs towards sustainable fruit provision and environment management.

通过生命周期评估量化柑橘供应链（SCs）的环境绩效（EP）对于优化水果生产，以更低的环境成本提供充足的维生素和微量营养素非常重要。作为中国国家计划的一部分，绿色脐橙使用的化学氮肥减少了50.0%，并因其高品质而越来越受欢迎。然而，从全生态系统的角度来看，它们的EP仍不清楚，而生态毒性和土地占用潜力（LOP）等关键指标在以往的研究中大多被忽视。基于对橙色SC （OSC）利益相关者的访谈，本研究分析了11个ReCiPe2016 (H)中点指标，并对特征结果进行了归一化，随后进行了蒙特卡罗模拟，以比较传统，绿色标签和有机标签的OSC从生产到消费的EP。绿色标签的osc在大多数类别中显示出较低的影响。具体而言，与有机标记的海洋有机化合物相比，它们的LOP降低了72.6%，与传统海洋有机化合物相比，臭氧消耗潜力降低了65.5%。它们的总环境指数分别比传统的和有机标签的OSCs低31.4%和24.5%。包装、运输和生产是重要的贡献阶段。关键的贡献投入包括氮肥、瓦楞纸箱、长途运输和土地利用。除了公认的化石燃料潜力之外，陆地生态毒性潜力和LOP是最近确定的盐含量评价的关键指标。因此，绿色标签osc代表了一种更环保的高产优质水果供应模式。这种多阶段、多指标的方法为水果SCs的综合评估和优化提供了一个可转移的框架，以实现可持续水果供应和环境管理。

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引用次数: 0

A meta-analysis of feeding strategies for dairy cattle performance and greenhouse gas mitigation across the world 全球奶牛生产性能和温室气体减排的饲养策略荟萃分析

IF 7.8 Q1 ENVIRONMENTAL SCIENCES

Resources Environment and Sustainability

Pub Date : 2025-09-21 DOI: 10.1016/j.resenv.2025.100271

Aurele Gnetegha Ayemele , Josy Karel Ngueuyim Nono , Herbert Gnetegha Fotsidie , Mbezele Junior Yannick Ngaba , Mekonnen Tilahun , Lu Ma , Dengpan Bu , Jianchu Xu

Studies on the effects of cattle feeding strategies on greenhouse gas emissions are fragmented and cannot provide a global comparison of the feeding management practices that lead to optimal production while substantially reducing methane (CH₄) and ammonia (NH₃) emissions. The present study explains variability in enteric CH₄, NH₃ mitigations and cattle milk performance due to several diet composition and structure, feed management, breeding, animal experimental designs and CH₄ measurement tools. Effects from 80 treatments were meta-analyzed from an initial 4394 screened papers and we retained 31 articles distributed across 15 countries on four continents. Minerals in feed additive types increased milk yield the most (90 %) and, concomitantly, reduced CH₄ production by 33 %. Feed additive dosage ranging between 1 and 4 % also contributed to increasing milk yield by 47 % while reducing CH₄ by 58 %. Meanwhile the impact of 3-nitrooxypropanol (3-NOP) feed additive on health safety is still controversial. Although a partial mixed ration system highly contributed to milk yield (102 %), it did not contribute to CH₄ reduction as much as a total mixed ration system (39 %). The highest CH₄ reduction levels were recorded with GreenFeed (80 %) and a rotating experimental design (37 %). The Holstein cattle breed was more productive with an increase of 46 % of milk production while reducing CH₄ by 34 %. Grass forage increased NH₃ by 5 % while crop forage reduced it by 21 %. Agriculture can effectively reduce its emissions and contribute to climate-neutral goals as part of a coordinated, global effort involving multiple sectors.

关于牛饲养策略对温室气体排放影响的研究是零散的，无法提供全球比较的饲养管理做法，这些做法可以在大幅减少甲烷（CH4）和氨（NH3）排放的同时实现最佳生产。本研究解释了饲粮组成和结构、饲料管理、育种、动物实验设计和CH4测量工具对肠道CH4、NH3缓解和奶牛产奶性能的影响。我们从最初筛选的4394篇论文中对80种治疗方法的效果进行了荟萃分析，并保留了分布在四大洲15个国家的31篇文章。饲料添加剂类型中的矿物质提高产奶量最多（90%），同时减少甲烷产量33%。饲料添加剂添加量在1 ~ 4%之间也有助于提高产奶量47%，减少甲烷58%。同时，3-硝基氧丙醇（3-NOP）饲料添加剂对健康安全的影响仍存在争议。虽然部分混合日粮系统对产奶量贡献很大（102%），但它对减少CH4的贡献不如完全混合日粮系统（39%）。采用GreenFeed（80%）和旋转实验设计（37%）记录的CH4减少水平最高。荷斯坦牛品种产量更高，产奶量增加46%，CH4减少34%。草料使NH3增加5%，而作物饲料使NH3减少21%。农业可以通过涉及多个部门的协调一致的全球努力，有效地减少排放，为实现气候中和目标作出贡献。

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引用次数: 0

Spatio-temporal exposure of photovoltaic farms to typhoon disasters for sustainable development in China's Coastal Regions 中国沿海地区光伏电站对台风灾害的时空暴露及其可持续发展

IF 7.8 Q1 ENVIRONMENTAL SCIENCES

Resources Environment and Sustainability

Pub Date : 2025-09-20 DOI: 10.1016/j.resenv.2025.100272

Luguang Jiang , Ye Liu , Liwen Yang , Huixia Zhao

The climate-adaptive solar energy planning contributes directly to the United Nations Sustainable Development Goals 7 and 13. The juxtaposition of China's leadership in global PV expansion and the escalating climate risks in its coastal regions underscores the importance of aligning PV layout with risk mitigation. This study utilizes Landsat imagery to analyze the spatiotemporal changes of PV distribution in China's coastal regions, and assesses the effect of typhoon disasters to PV. Key findings reveal that by the end of 2023, the total PV area in coastal regions reached approximately 1962.89 km². Notably, provinces north of the Yangtze River hosted more than twice the PV area of those to the south. Rapid expansion began post-2015, with PV area more than doubling between 2020 and 2023. From a disaster risk perspective, about 20 % of China's coastal land area faces high typhoon risk, with 16 % of existing PV area located in high-risk regions. The East China Sea and South China Sea coasts exhibit the highest concentration of extreme-risk regions. Encouragingly, 82.15 % of recent PV expansion occurred in low-to-medium-risk regions, indicating that current layout strategies already account for typhoon threats. Looking ahead, the Bohai Sea coast, Yellow Sea coast, and coasts near the Nansha Islands present relatively low risk, making them preferable for future offshore PV projects. In contrast, the East and South China Sea coasts remain high-risk regions, necessitating cautious planning for offshore PV development.

气候适应性太阳能规划直接有助于实现联合国可持续发展目标7和13。中国在全球光伏扩张方面处于领先地位，而沿海地区气候风险不断升级，这两者并存，凸显了将光伏布局与风险缓解相结合的重要性。利用陆地卫星影像分析了中国沿海地区PV分布的时空变化，并评估了台风灾害对PV的影响。重点研究结果表明，到2023年底，沿海地区光伏总面积约为1962.89 km2。值得注意的是，长江以北省份的光伏面积是长江以南省份的两倍多。2015年后开始快速扩张，光伏面积在2020年至2023年间增长了一倍以上。从灾害风险的角度来看，中国约20%的沿海陆地面积面临台风高风险，16%的现有光伏面积位于高风险地区。东海和南海是极端风险区最集中的地区。令人鼓舞的是，最近82.15%的光伏扩张发生在低至中等风险地区，这表明目前的布局策略已经考虑到了台风的威胁。展望未来，渤海沿岸、黄海沿岸和南沙群岛附近沿海风险相对较低，是未来海上光伏项目的首选。相比之下，东海和南海沿岸仍然是高风险地区，需要谨慎规划海上光伏发展。

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引用次数: 0

Spatial divergence of nitrogen fate in China's wheat systems: a meta-analysis and machine-learning roadmap for region-specific management 中国小麦系统氮素命运的空间分异：区域管理的元分析和机器学习路线图

IF 7.8 Q1 ENVIRONMENTAL SCIENCES

Resources Environment and Sustainability

Pub Date : 2025-09-19 DOI: 10.1016/j.resenv.2025.100270

Yan'ge Yan , Shuiqin Zhang , Yingqiang Zhang , Meng Xu , Jiukai Xu , Yanting Li , Bingqiang Zhao , Liang Yuan

Optimizing crop productivity while mitigating pollution requires a system-wide understanding of nitrogen (N) fertilizer fate and its loss pathways. However, regional variability in N fate and its linkage to yield response in China's wheat systems remains poorly quantified. We collected 4077 observations to analyze the effects of N fertilizer management, climate, and soil properties on wheat yield, N fate, and reactive nitrogen (Nr) losses using meta-analysis and machine learning. At the national scale, wheat yield increased by 65.40 % with N fertilization, with applied N partitioned into 41.56 % uptake, 29.66 % residual, and 38.81 % losses. The Nr losses comprised NH₃ (9.35 %), N₂O (0.73 %), NO (0.38 %), leaching (7.38 %), and runoff (4.68 %). At the regional scale, N uptake exhibited an increasing trend from north to south, whereas N residual and N loss gradually decreased. NH₃ volatilization accounted for 91.76 % of total N loss in northern China (NC). In central China (CC), NH₃ constituted 53.45 % of the losses, with N leaching accounting for 41.38 %. By contrast, southern China (SC) showed a more even distribution of losses across pathways. N application rate was the key determinant of N fate, whereas pH, mean annual precipitation, mean annual temperature, and bulk density had the greatest influence on Nr losses. Nationally, N uptake was the dominant driver of yield response, accounting for 54.06 % of the variation. Regionally, uptake remained the key factor in CC (37.83 %), whereas NC (27.33 % uptake; 16.09 % loss) and SC (15.20 % uptake; 12.37 % loss) showed substantial sensitivity to N loss. N residual had minimal impact in most regions but was significant in CC (11.66 %). Enhancing nitrogen uptake is the top priority in increasing wheat yield across different regions of China, while the role of fertilizer N loss and residual regionally varied. Accordingly, N management should prioritize loss reduction in NC and SC, and residual management in CC.

在减少污染的同时优化作物生产力需要对氮肥的命运及其损失途径有一个全系统的了解。然而，中国小麦系统氮素命运的区域变异及其与产量响应的联系仍然缺乏量化。我们收集了4077个观测值，利用meta分析和机器学习分析了氮肥管理、气候和土壤性质对小麦产量、氮素去向和活性氮（Nr）损失的影响。在全国范围内，施氮可使小麦产量提高65.40%，施氮分为吸收量41.56%、残量29.66%和损失38.81%。Nr损失包括NH3（9.35%）、N2O（0.73%）、NO（0.38%）、淋滤（7.38%）和径流（4.68%）。在区域尺度上，氮素吸收呈现自北向南增加的趋势，氮残量和氮损失逐渐减少。NH3挥发占华北地区氮素总损失的91.76%。在华中地区（CC）， NH3损失占53.45%，N淋失占41.38%。相比之下，中国南方（SC）表现出更均匀的损失分布。施氮量是氮素去向的关键决定因素，而pH、年平均降水量、年平均温度和容重对氮素损失影响最大。在全国范围内，氮素吸收是产量响应的主要驱动力，占变异的54.06%。从区域上看，吸收仍然是CC（37.83%）的关键因素，而NC（27.33%吸收量，16.09%损失）和SC（15.20%吸收量，12.37%损失）对N损失表现出相当大的敏感性。氮素残留量在大多数地区影响最小，但在CC显著（11.66%）。提高氮素吸收是中国不同地区小麦增产的首要任务，而氮肥损失和剩余的作用因地区而异。因此，氮管理应优先考虑NC和SC的损失减少，CC的剩余管理。

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引用次数: 0

Iron-organic carbon coupling controls phosphorus transformation and release in decades manure-enriched paddy soil 铁-有机碳耦合控制着几十年富肥水稻土磷的转化和释放

IF 7.8 Q1 ENVIRONMENTAL SCIENCES

Resources Environment and Sustainability

Pub Date : 2025-09-16 DOI: 10.1016/j.resenv.2025.100269

Hao Chen , Weihua Su , Song Wu , Yunfei Yu , Dengjun Wang , Qinglong Fu , Yujun Wang , Dongmei Zhou , Shenqiang Wang , Yu Wang

Manure fertilizer, as high P source, is widely used to enhance soil P availability, achieving organic waste recycling and sustainable agriculture. However, the excessive application of manure fertilizer poses risks of P loss. Herein, we address this critical challenge through a 25-year in-situ field experiment combined with a 60-days anaerobic incubation experiments, exploring the vital roles of iron (Fe) and organic carbon (OC) in regulating P transformation. Our in-situ field results reveal that prolonged manure fertilizer inputs resulted in the decoupling of the Fe dissolution and inorganic P (P_i) release in paddy soil. Under the further anoxic incubations, the results showed both chemical fertilizer (CF) and manure fertilizer (pig manure, CPM) lifted the P_i concentration due to dissimilatory Fe reduction, but through different mechanisms. In CF treatment, the increased P mainly derived from the release of Fe-bound P_i (Fe-P_i). CPM enhanced the Fe transformation from crystalline to amorphous, resulting in 18.8 % loss of Fe-bound OC, this resulted in the coupled Fe-bound organic P (Fe-P_o) decreased from 455.4 to 7.9 mg kg⁻¹, ultimately leading to a sharp increase in labile P from 177.2 to 353.4 mg kg⁻¹. Notably, Fe-bound lipids and proteins were more prone to microbial degradation, accelerating the breakdown of organic matter and enhancing P mobilization. Our findings underscore the pivotal role of Fe-OC interactions in controlling P release and provide critical insights for developing more effective strategies to optimize P management in sustainable agricultural practices.

粪肥作为高磷源，被广泛用于提高土壤磷素有效性，实现有机废物循环利用和农业可持续发展。然而，过量施用有机肥会造成磷流失的风险。在此，我们通过25年的现场实验结合60天的厌氧培养实验来解决这一关键挑战，探索铁（Fe）和有机碳（OC）在调节P转化中的重要作用。结果表明，长期施用有机肥导致水稻土中铁的溶解与无机磷的释放解耦。结果表明，在进一步的缺氧培养条件下，化肥（CF）和粪肥（猪粪，CPM）均通过异化铁还原作用提高了磷浓度，但作用机制不同。在CF处理下，磷的增加主要来源于Fe-Pi （Fe-Pi）的释放。CPM促进了Fe从晶态到非晶态的转变，导致铁结合OC损失18.8%，这导致耦合铁结合有机P （Fe- po）从455.4下降到7.9 mg kg - 1，最终导致不稳定P从177.2急剧增加到353.4 mg kg - 1。值得注意的是，铁结合的脂质和蛋白质更容易被微生物降解，加速了有机物的分解，增强了磷的动员。我们的研究结果强调了Fe-OC相互作用在控制磷释放中的关键作用，并为制定更有效的策略来优化可持续农业实践中的磷管理提供了重要见解。

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引用次数: 0