检索范围:
排序: 展示方式:
A review of soil nematodes as biological indicators for the assessment of soil health
Qiaofang LU, Tongtong LIU, Nanqi WANG, Zhechao DOU, Kunguang WANG, Yuanmei ZUO
《农业科学与工程前沿(英文)》 2020年 第7卷 第3期 页码 275-281 doi: 10.15302/J-FASE-2020327
Healthy soils are essential for sustainable agricultural development and soil health requires careful assessment with increasing societal concern over environmentally friendly agricultural development. Soil health is the capacity of soil to function within ecological boundaries to sustain productivity, maintain environmental quality, and promote plant and animal health. Physical, chemical and biological indicators are used to evaluate soil health; the biological indicators include microbes, protozoa and metazoa. Nematodes are the most abundant metazoa and they vary in their sensitivity to pollutants and environmental disturbance. Soil nematode communities are useful biological indicators of soil health, with community characteristics such as abundance, diversity, community structure and metabolic footprint all closely correlated with the soil environment. The community size, complexity and structure reflect the condition of the soil. Both free-living and plant-parasitic nematodes are effective ecological indicators, contributing to nutrient cycling and having important roles as primary, secondary and tertiary consumers in food webs. Tillage inversion, cropping patterns and nutrient management may have strong effects on soil nematodes, with changes in soil nematode communities reflecting soil disturbance. Some free-living nematodes serve as biological models to test soil condition in the laboratory and because of these advantages soil nematodes are increasingly being used as biological indicators of soil health.
关键词: biological indicators community characteristics soil health soil nematodes
Giulia BONGIORNO
《农业科学与工程前沿(英文)》 2020年 第7卷 第3期 页码 257-274 doi: 10.15302/J-FASE-2020323
Developments in soil biology and in methods to characterize soil organic carbon can potentially deliver novel soil quality indicators that can help identify management practices able to sustain soil productivity and environmental resilience. This work aimed at synthesizing results regarding the suitability of a range of soil biological and biochemical properties as novel soil quality indicators for agricultural management. The soil properties, selected through a published literature review, comprised different labile organic carbon fractions [hydrophilic dissolved organic carbon, dissolved organic carbon, permanganate oxidizable carbon (POXC), hot water extractable carbon and particulate organic matter carbon], soil disease suppressiveness measured using a - bioassay, nematode communities characterized by amplicon sequencing and qPCR, and microbial community level physiological profiling measured with MicroResp . Prior studies tested the sensitivity of each of the novel indicators to tillage and organic matter addition in ten European long-term field experiments (LTEs) and assessed their relationships with pre-existing soil quality indicators of soil functioning. Here, the results of these previous studies are brought together and interpreted relative to each other and to the broader body of literature on soil quality assessment. Reduced tillage increased carbon availability, disease suppressiveness, nematode richness and diversity, the stability and maturity of the food web, and microbial activity and functional diversity. Organic matter addition played a weaker role in enhancing soil quality, possibly due to the range of composition of the organic matter inputs used in the LTEs. POXC was the indicator that discriminated best between soil management practices, followed by nematode indices based on functional characteristics. Structural equation modeling shows that POXC has a central role in nutrient retention/supply, carbon sequestration, biodiversity conservation, erosion control and disease regulation/suppression. The novel indicators proposed here have great potential to improve existing soil quality assessment schemes. Their feasibility of application is discussed and needs for future research are outlined.
关键词: labile carbon long-term field experiments organic matter addition soil biological indicators tillage
Effects of mulching for water conservation on soil carbon, nitrogen and biological properties
Xiaomin PI, Tongxun ZHANG, Benhua SUN, Quanhong CUI, Yun GUO, Mingxia GAO, Hao FENG, David W. HOPKINS
《农业科学与工程前沿(英文)》 2017年 第4卷 第2期 页码 146-154 doi: 10.15302/J-FASE-2017136
关键词: biomass carbon mulch nitrogen plastic films soil straw water storage
Rainer HORN, Winfried E. H. BLUM
《农业科学与工程前沿(英文)》 2020年 第7卷 第3期 页码 243-245 doi: 10.15302/J-FASE-2020334
《农业科学与工程前沿(英文)》 2022年 第9卷 第2期 页码 177-186 doi: 10.15302/J-FASE-2021421
A range of plant species produce root exudates that inhibit ammonia-oxidizing microorganisms. This biological nitrification inhibition (BNI) capacity can decrease N loss and increase N uptake from the rhizosphere. This study sought evidence for the existence and magnitude of BNI capacity in canola ( Brassica napus). Seedlings of three canola cultivars, Brachiaria humidicola(BNI positive) and wheat ( Triticum aestivum) were grown in a hydroponic system. Root exudates were collected and their inhibition of the ammonia oxidizing bacterium, Nitrosospira multiformis, was tested. Subsequent pot experiments were used to test the inhibition of native nitrifying communities in soil. Root exudates from canola significantly reduced nitrification rates of both N. multiformis cultures and native soil microbial communities. The level of nitrification inhibition across the three cultivars was similar to the well-studied high-BNI species B. humidicola. BNI capacity of canola may have implications for the N dynamics in farming systems and the N uptake efficiency of crops in rotational farming systems. By reducing nitrification rates canola crops may decrease N losses, increase plant N uptake and encourage microbial N immobilization and subsequently increase the pool of organic N that is available for mineralization during the following cereal crops.
Evaluating and structuring indicators for wetland assessment
Xuehua LIU, Yan SUN,
《环境科学与工程前沿(英文)》 2010年 第4卷 第2期 页码 221-227 doi: 10.1007/s11783-010-0029-0
关键词: wetland assessment indicators Analytical Hierarchy Process (AHP) comparison
Lizzette Pérez LESPIER, Suzanna LONG, Tom SHOBERG, Steven CORNS
《工程管理前沿(英文)》 2019年 第6卷 第3期 页码 368-383 doi: 10.1007/s42524-019-0004-9
关键词: Environmental sustainability maritime transportation system environmental impact indicators fuzzy analytic hierarchy process fuzzy TOPSIS decision-making tool
《医学前沿(英文)》 2023年 第17卷 第4期 页码 675-684 doi: 10.1007/s11684-022-0970-x
关键词: critical care medicine quality control evaluation exploratory factor analysis (EFA) model
Machinability of ultrasonic vibration-assisted micro-grinding in biological bone using nanolubricant
《机械工程前沿(英文)》 2023年 第18卷 第1期 doi: 10.1007/s11465-022-0717-z
关键词: micro-grinding biological bone ultrasonic vibration (UV) nanoparticle jet mist cooling (NJMC) grinding force grinding temperature
Potential indicators predict progress after surgical resection of gastrointestinal stromal tumors
null
《医学前沿(英文)》 2012年 第6卷 第3期 页码 317-321 doi: 10.1007/s11684-012-0203-9
In order to find out the potential indicators predicting prognosis of malignant gastrointestinal stromal tumors (GISTs) after surgical resection, we collected clinical records of 80 patients with malignant GISTs. Tumor location, size, mitotic index, necrosis were compared with the prognosis of malignant GISTs by Kaplan-Meier method and log-rank test. After a median follow-up of 844 days (52–2 145), we found that as National Institutes of Health suggested, tumors with intermediate risk had more favorable prognosis than that with high risk. Their 3-year survival rate were 65.3% and 41.3%, respectively (P<0.001). Moreover, tumor size and mitotic index were associated with free survival. The 3-year survival rate for patients with tumor size≤10 cm and>10 cm were 62.3% and 41.8%, respectively (P = 0.002), Tumors with mitotic index≤5/50 HPF had a higher 3-year survival rate than tumors with mitotic index>5/50 HPF (67.1% versus 40.7%, P = 0.005). The presence of necrosis was directly related to the malignant behavior. The 3-year survival rate for presence and absence necrosis were 50.8% and 64.8% (P = 0.008). From the present study, we can conclude that besides tumors size and mitotic index, tumor location and necrosis also influence on the long-term survival of patient with malignant GISTs after surgical resection.
Microorganism-derived biological macromolecules for tissue engineering
《医学前沿(英文)》 2022年 第16卷 第3期 页码 358-377 doi: 10.1007/s11684-021-0903-0
关键词: biological macromolecules regenerative medicine tissue engineering exopolysaccharide carbohydrate
Low intensity ultrasound stimulates biological activity of aerobic activated sludge
LIU Hong, YAN Yixin, WANG Wenyan, YU Yongyong
《环境科学与工程前沿(英文)》 2007年 第1卷 第1期 页码 67-72 doi: 10.1007/s11783-007-0013-5
关键词: sonication irradiation kHz treatment efficiency AS activity
Biological conversion pathways of sulfate reduction ammonium oxidation in anammox consortia
Zhen Bi, Deqing Wanyan, Xiang Li, Yong Huang
《环境科学与工程前沿(英文)》 2020年 第14卷 第3期 doi: 10.1007/s11783-019-1217-1
关键词: Anammox bacteria Autotrophic Biological conversion Sulfate reducing ammonium oxidation (SRAO)
Photochemical indicators of ozone sensitivity: application in the Pearl River Delta, China
Lyumeng Ye,Xuemei Wang,Shaofeng Fan,Weihua Chen,Ming Chang,Shengzhen Zhou,Zhiyong Wu,Qi Fan
《环境科学与工程前沿(英文)》 2016年 第10卷 第6期 doi: 10.1007/s11783-016-0887-1
关键词: Ozone Pearl River Delta (PRD) Sensitivity regime Photochemical indicator Threshold levels
朱增银,李冰,高鸣,田爱军
《中国工程科学》 2010年 第12卷 第6期 页码 131-136
生态城市是现代城市达到自然、社会、经济三类子系统协调复合的唯一途径,生态文明城市是生态城市建设的高级阶段并开始成为我国城市环保工作的新潮流和新目标,建立一套成熟可行的生态文明城市量化指标体系具有重要意义。以太湖流域某城市的实践为例,在分析生态城市与生态文明内涵的基础上,结合城市复合生态系统和人类生态学理论,认为环保模范城市、生态市、生态文明市是我国生态城市建设工作的低、中、高三个层次和阶段,生态文明城市指标应具备先行成果的承续性和创新领域的先进性,以此提出太湖流域生态文明城市量化指标的设计原则、基本框架和建议指标。
标题 作者 时间 类型 操作
A review of soil nematodes as biological indicators for the assessment of soil health
Qiaofang LU, Tongtong LIU, Nanqi WANG, Zhechao DOU, Kunguang WANG, Yuanmei ZUO
期刊论文
Novel soil quality indicators for the evaluation of agricultural management practices: a biological perspective
Giulia BONGIORNO
期刊论文
Effects of mulching for water conservation on soil carbon, nitrogen and biological properties
Xiaomin PI, Tongxun ZHANG, Benhua SUN, Quanhong CUI, Yun GUO, Mingxia GAO, Hao FENG, David W. HOPKINS
期刊论文
Effect of land-use management systems on coupled physical and mechanical, chemical and biological soilprocesses: how can we maintain and predict soil properties and functions?
Rainer HORN, Winfried E. H. BLUM
期刊论文
ROOT EXUDATES FROM CANOLA EXHIBIT BIOLOGICAL NITRIFICATION INHIBITION AND ARE EFFECTIVE IN INHIBITINGAMMONIA OXIDATION IN SOIL
期刊论文
A model for the evaluation of environmental impact indicators for a sustainable maritime transportation
Lizzette Pérez LESPIER, Suzanna LONG, Tom SHOBERG, Steven CORNS
期刊论文
Evaluation of ICUs and weight of quality control indicators: an exploratory study based on Chinese ICU
期刊论文
Machinability of ultrasonic vibration-assisted micro-grinding in biological bone using nanolubricant
期刊论文
Potential indicators predict progress after surgical resection of gastrointestinal stromal tumors
null
期刊论文
Low intensity ultrasound stimulates biological activity of aerobic activated sludge
LIU Hong, YAN Yixin, WANG Wenyan, YU Yongyong
期刊论文
Biological conversion pathways of sulfate reduction ammonium oxidation in anammox consortia
Zhen Bi, Deqing Wanyan, Xiang Li, Yong Huang
期刊论文
Photochemical indicators of ozone sensitivity: application in the Pearl River Delta, China
Lyumeng Ye,Xuemei Wang,Shaofeng Fan,Weihua Chen,Ming Chang,Shengzhen Zhou,Zhiyong Wu,Qi Fan
期刊论文