Land Degradation & Development最新文献

{"title":"Exploring the Coupling Relationship and Driving Factors of Land Use Conflicts and Ecosystem Services Supply–Demand Balances in Different Main Functional Areas, Southwest China","authors":"Weijie Li,&nbsp;Jinwen Kang,&nbsp;Yong Wang","doi":"10.1002/ldr.5293","DOIUrl":"10.1002/ldr.5293","url":null,"abstract":"<div>\u0000 \u0000 <p>Conflicts between different types of land use, driven by rapid urbanization, are altering ecosystem services supply–demand balances (ESDB), and the reduction of ESDB will threaten regional sustainable development and human welfare. However, there are few studies on the interrelationships and their drivers between land use conflicts (LUCs) and ESDB from a coupling perspective, especially in different main functional areas. Therefore, this study focused on Southwest China. Firstly, the coupling coordination degree model was employed to measure the ESDB-LUCs relationship and analyze its dynamic changes from 1990 to 2020. Then, the RDA method was used to explore the driving factors of the ESDB-LUCs relationship in different functional areas (i.e., urban development area (UDA), agricultural development area (APA), and ecological protection area (EPA)). The results show that the LUCs index displayed a downward trend in the SW during 1990–2020, with a decreasing distribution pattern from the northeast to the southwest. The ESDB index exhibited a downward and then upward trend, with an increasing distribution mode from the northeast to the southwest. There was a spatial dependence between LUCs and ESDB. The type of coupling coordination between LUCs and ESDB was dominated by moderate coordination, with the index showing a spatial pattern of UDA &gt; APA &gt; EPA. Among these, the proportion of cropland and the proportion of urban land were the main factors influencing the degree of coordination of the UDA (explanation rate &gt; 80%), showing positive and negative effects, respectively. The proportion of forestland and the proportion of cropland were the main factors influencing the APA and EPA (explanation rate &gt; 70%), with negative and positive effects, respectively. Therefore, mitigating the conflict between cropland and urban land, cropland and forest land is essential to achieve ecosystem balance in the SW.</p>\u0000 </div>","PeriodicalId":203,"journal":{"name":"Land Degradation & Development","volume":"35 17","pages":"5237-5253"},"PeriodicalIF":3.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142362784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Long-Term Biochar Application Improved Aggregate K Availability by Affecting Soil Organic Carbon Content and Composition","authors":"Zhengrong Bao,&nbsp;Wanning Dai,&nbsp;Han Li,&nbsp;Zhengfeng An,&nbsp;Yu Lan,&nbsp;Hang Jing,&nbsp;Jun Meng,&nbsp;Zunqi Liu","doi":"10.1002/ldr.5285","DOIUrl":"10.1002/ldr.5285","url":null,"abstract":"<div>\u0000 \u0000 <p>Straw biochar is an effective amendment at improving soil aggregate structure and increasing soil carbon and potassium (K) content. However, little information is available on the relationship between soil organic carbon (SOC) and aggregate-associated K distribution under long-term biochar application conditions. To address this, a field trial established in 2013 was used to examine the impact of biochar (B₀: 0 and B₁: 2.625 t ha⁻¹ year⁻¹) and K fertilizer (K₀: 0 and K₁: 60 kg ha⁻¹ year⁻¹) on the variation in soil aggregate K and reveal the associated influencing factors. A total of four treatments (B₀K₀, B₀K₁, B₁K₀, and B₁K₁) were included in this study. The soil analysis results obtained in 2021 showed that after 9 years' amendment, B₁K₁ increased the aggregate exchangeable K (EK) and nonexchangeable K (NEK) pools by 27.40% and 39.55%, respectively, and the increment was primarily because biochar enhanced &gt; 0.25 mm aggregate fractions and strengthened soil K⁺ adsorption capacity, which benefit from a synergistic increase in SOC and humic acid (HA) content by biochar. ¹³C NMR analysis showed that long-term biochar applications altered the chemical composition of SOC, with an outcome of increased aromaticity and hydrophobicity but decreased the lipidation of SOC, indicating that the complexity of SOC molecular structure was enhanced and eventually contributed to strengthening the macroaggregates stability and soil K⁺ adsorption capacity. The correlation analysis revealed that soil aggregate EK and NEK contents were positively correlated with SOC and HA contents, which further proved that increase of SOC and soil HA is a significant mechanism for biochar ameliorate soil aggregate-associated K availability.</p>\u0000 </div>","PeriodicalId":203,"journal":{"name":"Land Degradation & Development","volume":"35 17","pages":"5137-5148"},"PeriodicalIF":3.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142362785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Variation Patterns and Affecting Factors of Plant Alpha Diversity, Beta Diversity and Its Components in Restoration Grasslands on Loess Plateau","authors":"Chunxia Jian,&nbsp;Yang Luo,&nbsp;Junjie Zhou,&nbsp;Bingcheng Xu","doi":"10.1002/ldr.5287","DOIUrl":"10.1002/ldr.5287","url":null,"abstract":"<div>\u0000 \u0000 <p>Understanding spatiotemporal variation in diversity and identifying key external affecting factors are essential for biodiversity conservation. However, community assembly and species diversity in natural grassland (NG) restoration on the Loess Plateau remain unclear. In this study, we examined α diversity (species richness), β diversity (βtotal), and its components (βrepl and βrich) across 89 grassland communities, which were categorized into five restoration stages: recent grassland (RG), early restoration (ER), middle restoration (MR), later restoration (LR), and NG. Linear mixed models (LMM) were used to analyze the effects of topographic, soil, and landscape factors on diversity. Results showed that α diversity followed an increasing-decreasing trend across restoration stages (7–21 species m⁻²), peaking at the MR stage. In contrast, β diversity and its two components declined with duration, with βtotal and βrepl being notably higher in ER than in LR and NG. Differences in βtotal primarily resulted from species replacement (βrepl, 61%–70%), with a smaller contribution from species gain and loss (βrich, 30%–39%). The LMM also revealed that restoration stage was the most important factor affecting plant diversity, explaining 59.3%, 68.4%, 53.5%, and 58.8% of richness, βtotal, βrepl, and βrich, respectively. In comparison, landscape had weaker effects on diversity (17.2%, 24.2%, 46.5%, 39.8%), while topography and soil factors had the least effects. In summary, deterministic processes (restoration stage) dominate natural restoration, but substantial differences persist between restoration grassland and NG. This study provides valuable insights for assessing restoration progress, prioritizing conservation areas, and informing future grassland management in semi-arid and fragmented regions.</p>\u0000 </div>","PeriodicalId":203,"journal":{"name":"Land Degradation & Development","volume":"35 17","pages":"5162-5176"},"PeriodicalIF":3.6,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142360580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impacts of Urbanization on Economic Development and Ecological Protection of the Wuhan City Circle, China","authors":"Yiting Li,&nbsp;Chunbo Huang,&nbsp;Shuangshuang Liu,&nbsp;Jing Cheng,&nbsp;Yang Xiang,&nbsp;Changhui Peng","doi":"10.1002/ldr.5298","DOIUrl":"10.1002/ldr.5298","url":null,"abstract":"<div>\u0000 \u0000 <p>The conflict between economic development and ecological protection in land use (LU) has been a significant and widely discussed topic. The city circle concept has been proposed to promote economic growth through its strong agglomeration effect. It contains the core city and its surrounding area, and economic activities and ecosystems are highly intertwined within this geographic unit. Meanwhile, population, industry, and infrastructure are often concentrated within the urban sphere, which results in a concentrated demand for land, water, and ecosystem services. As a result, LU conflicts are more pronounced in urban areas. Here, we used gross domestic product (GDP) and gross ecosystem product (GEP) to reflect economic and ecological levels, then linked LU change into the coupling relationship between GDP and GEP of the Wuhan City Circle (WHCC), China, to analyze the economic and ecological developments of WHCC. Finally, we constructed a partial least squares structural equation modeling to explore the key drivers affecting the coupling of real GDP and GEP. Our results revealed significant LU changes between 1990 and 2020 for the WHCC. Paddy fields, dry lands, and some forestlands decreased, while built-up lands and water areas both increased. Real GDP of the WHCC increased from $1.04 × 10⁶ in 1990 to $3.04 × 10⁷ in 2020. While the GEP of the WHCC increased during 1990–2010 and decreased during 2010–2020. Additionally, GEP exhibited a significant spatial heterogeneity, with high GEP concentrated in the central and southeastern regions. Moreover, we constructed a conceptual model for coupling real GDP and GEP, then used structural equation modeling to reveal their relationship. Real GDP had a positive effect on GEP. Furthermore, the proportion of construction land and ecological land as intermediate variables played an important direct and indirect role in real GDP and GEP. Consequently, landscape planning was proposed to enhance the green infrastructure of the WHCC. Our findings provide a reference and experience on land resource allocation for maintaining sustainable development in the city circle.</p>\u0000 </div>","PeriodicalId":203,"journal":{"name":"Land Degradation & Development","volume":"35 17","pages":"5308-5326"},"PeriodicalIF":3.6,"publicationDate":"2024-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142329936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Soil Nutrients Inversion in Open-Pit Coal Mine Reclamation Area of Loess Plateau, China: A Study Based on ZhuHai-1 Hyperspectral Remote Sensing","authors":"Hongyu Wang,&nbsp;Juan Wang,&nbsp;Rongrong Ma,&nbsp;Wei Zhou","doi":"10.1002/ldr.5291","DOIUrl":"10.1002/ldr.5291","url":null,"abstract":"<div>\u0000 \u0000 <p>Soil nutrients are crucial to assess land reclamation quality, and the use of various types of remote sensing data for soil nutrient inversion has been a key focus for soil monitoring. However, fewer studies have been conducted using satellite-based hyperspectral remote sensing. To explore the potential of satellite-based hyperspectral remote sensing in soil nutrient monitoring, this study selected soil organic matter, total nitrogen, available phosphorus, and available potassium content data from 83 sample sites using ZhuHai-1 hyperspectral data. After spectral transformation and feature extraction, various inversion models were constructed, including partial least squares regression, support vector machine, recurrent neural network, and random forest. After verification by accuracy, the best spectral-model combination was used for inversion. The results showed that the <i>R</i>-squared range of the inversion models was 0.67748–0.78115. High content areas of soil organic matter and available potassium exhibited concentrated and contiguous features, while high content areas of total nitrogen and available phosphorus were more fragmented and fine-grained. Alfalfa grassland plays a vital role in improving reconstructed soil in the early reclamation stage, and agricultural activities have differential impacts on soil nutrient accumulation. This study provides a theoretical basis for verifying the application capability of ZhuHai-1 hyperspectral satellite data in soil monitoring.</p>\u0000 </div>","PeriodicalId":203,"journal":{"name":"Land Degradation & Development","volume":"35 17","pages":"5210-5223"},"PeriodicalIF":3.6,"publicationDate":"2024-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142330229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microplastics in Urban Soils From Different Land Use Activities of Cyberjaya (Malaysia): Exploring Occurrence, Relationships, Sources and Pollution Level","authors":"Sarva Mangala Praveena,&nbsp;Nik Munirah Nik Mohd Zaidi,&nbsp;Ayu Lana Nafisyah,&nbsp;H. G. Lingaraju","doi":"10.1002/ldr.5294","DOIUrl":"10.1002/ldr.5294","url":null,"abstract":"<div>\u0000 \u0000 <p>As human activities continue to increase, the production and utilisation of plastics have become pervasive, leading to a surplus of plastic waste in the environment. This has turned the terrestrial ecosystem, encompassing soil, into a significant receptacle for the growing accumulation and discharge of plastic waste. Thus, the objective of this study is to investigate the occurrence, relationships, sources and pollution levels of microplastics in urban soils from different land use activities in Cyberjaya, Malaysia. Surface soil samples were collected from land uses (i.e., vacant areas, residential areas, commercial areas, construction areas and roadways). These surface soil samples were analysed for microplastic occurrence using density separation, microscopy and spectroscopy methods. The microplastics particles were analysed for size, colour and shape. Selected microplastics particles were also analysed for its plastics polymers using Fourier-Transform Infrared Spectroscopy. Microplastics occurrence ranged from 0.3 to 1.5 particle/kg, with the highest average occurrence in the construction area (0.69 particle/kg) and lowest in the vacant area (0.33 particle/kg). Microplastics particle size was shortest in commercial areas (586.08 μm) and longest in vacant areas (793.78 μm). There were no similarities between microplastics occurrence and particle size across these different land use activities, suggesting that the microplastics occurrence in urban soils depends on external disturbances during each land use activity. Significant correlation between microplastic particle size and temperature (<i>r</i>\u0000 ² = 0.517) showed that each land use activity is influenced by external disturbances. The <i>I</i>\u0000 _geo values showed that the microplastics pollution level in urban soils is classified as uncontaminated to moderately contaminated. Microplastic particles in urban soils were found in various shapes (i.e., fragments, films and fibres) and colours (i.e., transparent, grey, blue, red, green, purple, black, white and yellow) along with plastic polymer types (i.e., ABS, PET, PP, PE and PS) due to traffic volume, tyre wear, mismanaged plastic waste and degradation rate. This study highlights the need for pollution management and waste disposal to avoid urban environmental problems and adverse health effects.</p>\u0000 </div>","PeriodicalId":203,"journal":{"name":"Land Degradation & Development","volume":"35 17","pages":"5254-5266"},"PeriodicalIF":3.6,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142325786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Characteristics and Drivers of Soil Ecological Stoichiometry in Saline–Alkali Areas of Western Jilin Province, Northeast China","authors":"Yuefen Li,&nbsp;Jingfa Zhong,&nbsp;Lei Chang","doi":"10.1002/ldr.5306","DOIUrl":"10.1002/ldr.5306","url":null,"abstract":"<div>\u0000 \u0000 <p>Soil ecological stoichiometry (SES) provides an important approach in exploring chemical element balance relationships and ecosystem structure and function, but the characterization, significance, and drivers of SES in saline–alkali areas have not been well studied. Soil organic carbon (SOC), total nitrogen (TN), and total phosphorus (TP) were measured and their SES ratios were calculated from 155 soil samples collected at a depth of 20 cm in the saline–alkali soil zone of western Jilin Province, China. The results showed that SOC, TN, and TP contents and SES ratios (52:4:3) were lower in this region than in terrestrial ecosystems both in China as a whole and globally. The distribution of SOC, TN, and TP in saline–alkali soil varied significantly across land use types, with high concentrations mainly in woodland, grassland, and cropland. SOC, TN, and TP were tightly coupled, with significant positive correlations (<i>p</i> &lt; 0.01), and C:N was significantly negatively correlated (<i>p</i> &lt; 0.01) with the other SES ratios, indicating that saline–alkali soils are susceptible to carbon and nitrogen limitation. The distribution patterns of SOC, TN, TP, and their eco-chemometrics on the environmental gradient were variable, mainly in the form of significant decreases with increasing mean annual precipitation, mean annual temperature, and elevation. Cropland was most affected by environmental factors, and all SES except TP were affected by environmental factors. Soil nutrient (44.9%) and soil texture (9.8%) contributed the most to explaining SES in the saline–alkali soil zone, while climate (1.6%) and vegetation (0.4%) contributed the least to the explanation. All land use types were most explained by AN, except for woodland SES, which was most explained by AP. Elevation (17.4%) possessed a high degree of explanation for SES on underutilized land, except for the soil itself. Grassland is the land category most affected by climatic factors (12.7%). By applying biochar, nitrogen fertilizer, and planting saline-tolerant crops such as <i>Leymus chinensis</i>, the soil structure can be effectively improved and the content of carbon and nitrogen in the soil can be increased, which has a positive effect on the improvement of saline–alkali soil. The results of the study provide information that can be used to help saline–alkali areas cope with environmental and climate change and restore degraded ecosystems.</p>\u0000 </div>","PeriodicalId":203,"journal":{"name":"Land Degradation & Development","volume":"35 17","pages":"5411-5424"},"PeriodicalIF":3.6,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142325788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"COP27 Perspective of Food, Land Resources and Digitalization for Sustainable Economy: Novel Evidence From Lower-Middle-Income Countries","authors":"Chaowen Bi,&nbsp;YuFei Gan,&nbsp;Weizheng Wang,&nbsp;Pengcheng Xue","doi":"10.1002/ldr.5305","DOIUrl":"10.1002/ldr.5305","url":null,"abstract":"<div>\u0000 \u0000 <p>Economies in the environmentally conscious era follow the 27th Conference of the Parties' commitments to attaining environmental sustainability. However, using alternative energy sources reduces arable land and diminishes land resources, severely affecting food production, exports, and overall income. This issue raises concerns about attaining a sustainable economy, which has attracted little scholarly attention in the preceding literature. The present research examines the influence of food exports, digitalization, access to clean fuel and technologies for cooking, mineral resources, and oil resources on the economic sustainability of lower-middle-income economies. Covering the latest period from 1990 to 2022, this study uses several time series estimators to analyze the aggregate data of selected economies. The empirical results suggest that the mentioned variables are cointegrated in the long run. The regression estimates showed that food exports and mineral resources are adversely associated with economic sustainability. However, access to clean fuel and technologies for cooking and digitalization significantly contributes to the region's economic sustainability. Nonetheless, the role of oil resources is insignificant but negative, which validates the resource curse phenomenon in the region. The results are robust since these estimations are validated by regression accounting for structural breaks. This study recommends investment in clean energy resources, efficient mineral resource management, and the transition to clean energy to accomplish the 27th Conference of the Parties target and attain sustainable development.</p>\u0000 </div>","PeriodicalId":203,"journal":{"name":"Land Degradation & Development","volume":"35 17","pages":"5397-5410"},"PeriodicalIF":3.6,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142317307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Precipitation and Soil Nitrogen as Key Drivers of Species and Phylogenetic Diversity Across Growth Forms in Picea purpurea Forests of the Eastern Qinghai–Tibet Plateau","authors":"Rui Qi,&nbsp;Jiahao Cao,&nbsp;Bo Li,&nbsp;Ting Liu,&nbsp;Benqiang Gao,&nbsp;Siqing Wang,&nbsp;Zhengwei Ren,&nbsp;Ning Chen,&nbsp;Xiaowen Hu","doi":"10.1002/ldr.5304","DOIUrl":"10.1002/ldr.5304","url":null,"abstract":"<div>\u0000 \u0000 <p>\u0000 <i>Picea purpurea</i> forests are a fundamental part of the coniferous forests of the Qinghai–Tibet Plateau. These forests support an extremely rich diversity of organisms while providing crucial ecological functions. Despite their importance, the species and phylogenetic diversity (PD) of these forests remain understudied. The extent to which different plant growth forms in the forest are influenced by the environment varies according to differences in the evolutionary history and characteristics of these taxa. Here, we investigate the variations in all, woody, and herbaceous plant species diversity (SD) and PD in the eastern Qinghai–Tibet Plateau's <i>Picea purpurea</i> forests, along with the associated environmental factors influencing these patterns. Our results show that both SD and PD exhibit similar patterns across all, woody, and herbaceous plants. Notably, mean annual precipitation, total nitrogen, and altitude were identified as the primary factors accounting for the majority of variance in SD and PD within plant communities. Specifically, we found positive correlations between SD and PD with soil total nitrogen content, while negative correlations were observed with mean annual precipitation and altitude. Furthermore, we find that the influence of environmental variables on all plants was found to be more pronounced compared to woody and especially herbaceous plants in terms of both SD and PD. Environmental factors had a direct effect on SD and PD in all woody and herbaceous plants. However, the strength of these effects varied. Importantly, our results indicate that environmental factors influence SD independently of PD. Our findings suggest that precipitation and total soil nitrogen were the most influential environmental factors affecting plant diversity across different growth forms in <i>Picea purpurea</i> communities. However, inferring SD from PD remains a challenging task. These findings of our study will provide guidance for forest biodiversity conservation and sustainable forest management in the Qinghai–Tibet Plateau.</p>\u0000 </div>","PeriodicalId":203,"journal":{"name":"Land Degradation & Development","volume":"35 17","pages":"5386-5396"},"PeriodicalIF":3.6,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142321187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microbial Community and Functions Depending on Tillage and Straw Returning Management: Consequences for Soil Health and Ecosystem Services","authors":"Qing Liu,&nbsp;Hongcui Dai,&nbsp;Liang Wang,&nbsp;Xin Qian,&nbsp;Yingbo Gao,&nbsp;Hui Zhang,&nbsp;Kaichang Liu,&nbsp;Zongxin Li,&nbsp;Kazem Zamanian","doi":"10.1002/ldr.5301","DOIUrl":"10.1002/ldr.5301","url":null,"abstract":"<div>\u0000 \u0000 <p>Tillage and straw returning are promising practices to improve soil quality, especially because of the unclear controlling effects on microbial communities and functions. A 5-year field experiment in a winter wheat-summer maize cropping system was implemented in the North China Plain to address this research gap. Management practices were deep tillage, rotary tillage, and no-tillage, each with either wheat only or both wheat and maize straw returning. Shotgun metagenomic sequencing was performed to investigate the microbial community, diversity, co-occurrence network, and function in the topsoil (0–20 cm). The associations between soil physiochemical properties and microbial community characteristics were also evaluated. Rotary tillage with only wheat straw returning (RTS) significantly increased Shannon's diversity index by 0.24%–1.71% compared to other treatments. No-tillage with only wheat straw returning (NTS) showed the most stable microbial network with the highest betweenness centrality (199.09), average path distance (2.31), and modularity (0.50). NTS had the highest relative abundance of microbial carbon (C), nitrogen (N) metabolisms, and C fixation pathways. Among deep tillage practices, both wheat and maize straw returning (DTD) were more beneficial to the stability of microbial networks than only wheat straw returning (DTS), yet without improvement in microbial diversity and function. In conclusion, microbial community and function are practical predictors of variations in soil nutrient availability, and pH value in response to different tillage and residue management practices. In particular, our study provides a basis for the development of a sustainable crop residue management system.</p>\u0000 </div>","PeriodicalId":203,"journal":{"name":"Land Degradation & Development","volume":"35 17","pages":"5357-5366"},"PeriodicalIF":3.6,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142317308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}