Results 11 to 20 of about 2,194 (176)
Journal of Ecology, Volume 111, Issue 12, Page 2733-2749, December 2023., 2023 Our results indicate that defoliation and fertilisation, two common grassland perturbations, have contrasting impacts on root traits of grassland plant species, with direct and indirect short‐term consequences for a wide range of soil abiotic and biotic properties that underpin ecosystem functioning.
Yan Liu +2 more
wiley +1 more source
Methods in Ecology and Evolution, Volume 14, Issue 6, Page 1443-1456, June 2023., 2023 Abstract Successful use of stable isotopes (δ2H and δ18O) in ecohydrological studies relies on the accurate extraction of unfractionated water from different types of soil samples. Cryogenic vacuum distillation (CVD) is a common laboratory‐based technique used for soil water extraction; however, the reliability of this technique in reflecting soil ...
Bin Yang +14 more
wiley +1 more source
Conservation Biology, Volume 37, Issue 1, February 2023., 2023 Abstract Insights into declines in ecosystem resilience and their causes and effects can inform preemptive action to avoid ecosystem collapse and loss of biodiversity, ecosystem services, and human well‐being. Empirical studies of ecosystem collapse are rare and hampered by ecosystem complexity, nonlinear and lagged responses, and interactions across ...
David A. Keith +8 more
wiley +1 more source
Characteristics of Soil Physical Property Improvement and Carbon Sequestration for Agroforestry in Yellow River Flood Plain [PDF]
, 2022 [Objective] The effects of different agroforestry systems on soil physical properties, especially carbon sequestration, in the Yellow River flood plain was determined, in order to provide scientific guidance for optimizing regional agroforestry systems ...
Dong Zhi +5 more
core +1 more source
Shuitu Baochi Xuebao, 2022 中国南方丘陵区存在着自然过程和人类活动交互影响的、土地利用—土地覆盖叠加变化的多种土壤景观，其土壤质量对乡村农业产业发展具有重要影响。在南京市远郊的溧水区晶桥镇芝山村域小流域，选取流域内生态保护的林地、农业利用的园地、旱地和稻田4种土壤景观，于秋季分别采集表土样品，测定土壤基础理化性质、土壤团聚体粒径组成及土壤微生物磷脂肪酸和胞外酶活性分布，分析土壤肥力、土壤团聚化、土壤生物活性等关键性质在不同土壤景观中的变异情况，并采用土壤质量评价方法探明土壤景观与表土质量的变化关系。结果表明，与原生林地相比 ...
赵正 +13 more
doaj
Inulin Molecular Detection Methods of High-Performance Gel FiltrationChromatography and Changes in Inulin Molecular Weight During Storage [PDF]
, 2016 菊芋是一种耐盐抗旱植物,可用于生产菊糖.菊糖具有良好的生物活性,其活性受到聚合度的影响.本研究对比了各项条件,总结得到了一套可以用于测定菊糖相对分子量的高效凝胶过滤色谱(HPGFC)方法:纯水为流动相,0.8 m L/min洗脱,Shodex OHpak SB-804HQ色谱柱检测,柱温控制在30℃,样品进样量为每次20μL,检测器为示差折光检测器(RID),采用Sigma公司生产的右旋糖酐标准品,绘制二次方的标准曲线,检测菊糖的相对分子质量.同时利用确定的凝胶过滤色谱(GFC)方法 ...
李琬聪 +4 more
core +1 more source
地矿测绘, 2020 因为受到经济发展的推动作用,人们的生活质量也在快速提高,但是生活垃圾和生产垃圾的增加严重的影响了生态环境。其中就包括土壤污染问题,人们的生活生产产生的一些垃圾,使得土壤中的重金属物质越来越多,而这些重金属物质都严重的影响着人们的生命健康。土壤已经被污染,人们在这样的土地上种植庄稼,人们吃了受污染的庄稼,有害物质就会被人体吸收,时而久之,就会患得比较严重的病。所以保护土壤环境,防止土壤被污染是人们首要任务。
二忠 李, 忠 易
semanticscholar +1 more source
A Study on Carbon Fixation Capacity and Its Influencing Factors Based on InVEST Model at Wuhu City [PDF]
, 2023 [Objective] The spatial and temporal distribution pattern of carbon storage at Wuhu City, Anhui Province from 2011 to 2021 were analyzed, and the influence of ecological environmental factors, topographic factors, meteorological factors, and land use ...
Chu Yunzhi +9 more
core +1 more source
Methods in Ecology and Evolution, Volume 11, Issue 1, Page 22-37, January 2020., 2020 Abstract Climate change is a world‐wide threat to biodiversity and ecosystem structure, functioning and services. To understand the underlying drivers and mechanisms, and to predict the consequences for nature and people, we urgently need better understanding of the direction and magnitude of climate change impacts across the soil–plant–atmosphere ...
Aud H. Halbritter +116 more
wiley +1 more source
Spatial-temporal Variation of Water Yield in Nanbei Panjiang River Basin Based on InVEST Model [PDF]
, 2023 [Objective] The temporal and spatial variation characteristics of water yield and differences in the water yield function for different land use types, soil types, and topography in the Nanbei Panjiang River basin were analyzed in order to provide a ...
Chen Quan +5 more
core +1 more source