Cadmium Bioavailability Based on Diffusive Gradients in Thin Films Technique and Conventional Chemical Extraction in High Geological Background Soil Area of Northwestern Zhejiang Province, China [PDF]
, 2023 BACKGROUNDHigh geochemical background has a greater impact on soil Cd pollution than human activities and is more detrimental to the environment and human health on a regional level. Research shows that the bioavailability of Cd in soil is the key factor
Binbin SUN +6 more
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Effects of Continuous Straw Returning Combined with Reduced Fertilizer Application on Rice Yield and Loss of Nitrogen and Phosphorus [PDF]
, 2022 [Objective] The effects of straw returning combined with reduced chemical fertilizer application on rice yield and nitrogen and phosphorus losses with runoff were studied in order to provide a scientific basis for the recycling and reuse of local ...
Liang Fan +8 more
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Cadmium contamination and dietary exposure assessment in rice in Nanning City [PDF]
, 2020 Objective To understand the content of cadmium (Cd) in rice and evaluate the potential health risk to local residents. Methods Total of 886 rice samples were collected from Nanning City during 2015-2019, and the content of Cd in rice was determined by ...
Haixia ZHANG +6 more
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Effects of Chemical Fertilizer Reduction Combined with Straw and Organic Fertilizer Application on Soil Acidification Mitigation and Erosion Control [PDF]
[Objective] To demonstrate that appropriate application of straw and organic fertilizer can effectively improve soil quality, have a positive effect on soil acidification mitigation and erosion control.
CAO Yunfei +9 more
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Response of Microbial Community Structure and Diversity to Nitrogen Deposition in Soils of Pinus yunnanensis Forest of the Central Yunnan Plateau [PDF]
[Objective] To study the characteristics of changes in chemical properties and diversity and structural composition of soil microbial communities in Pinus yun-nanensis soils on the Central Yunnan Plateau under nitrogen deposition, and to analyze the ...
DENG Qiujiang +6 more
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Research on Ammonia Emission Inventory in Fujian Province [PDF]
, 2016 近年来，随着福建地区经济快速发展，城市化进度不断加快，环境与经济发展的矛盾日益突出，大气灰霾污染频繁发生，空气质量和能见度下降。氨是大气霾污染生成的促进剂，对大气污染有着直接和间接的影响。本研究建立了福建省人为源氨排放清单，分析氨的排放特征和时空分布，预测未来氨排放水平，探讨氨排放与氨监测和颗粒物离子的关系，为该地区空气质量改善提供了重要的基础数据。 首先，本研究以2013年为基准年，基于排放因子法建立了福建省人为源氨排放清单。研究显示，2013年福建地区人为源氨总排放量是25.24万吨 ...
刘元隆
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Exploration of the reasons for yield decline in the perennial harvesting model of strawberries in Huize county of Yunnan province [PDF]
[Objective] Strawberries (Fragaria × ananassa Duch.) are typically planted annually with annual disinfection treatments to suppress pests and diseases. In contrast, strawberries are cultivated perennially in Huize, Yunnan, China, fruits can be harvested ...
CHANG Linlin +15 more
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Study on Soil Acidity Reconstruction by Using Dendrochemistry in the Subalpine Forest Ecosystems of Western Sichuan [PDF]
, 2011 酸沉降是全球面临的重大环境问题之一，已经造成了许多地区的环境破坏和生态恶化。为此，人们对酸雨的性质及环境效应进行了广泛的研究，已经有了越来越深刻的认识。而作为引起森林树种衰退和死亡的主要原因，由酸沉降导致的土壤酸化问题更是备受关注。在大多数地区，历史监测资料的缺乏却给长期土壤酸化的评估带来了很多的困难，但是树木年轮元素含量的径向变动提供了检测林区土壤化学历史变动的潜力，从而可以用来克服这一困难。 基于以上几点，本研究为获取重建川西亚高山森林生态系统土壤酸化历史变迁的最佳指标，选取该地区峨眉山（严重酸沉降）
陈磊
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Effects of Organic Fertilizer Substitution and Aggregation on Microfauna Communities in a Red Soil [PDF]
[Objective] Red soil is a typical soil in Southern China, and organic substitution is an important way to improve the physicochemical properties of red soil.
DING Weixin +6 more
core +1 more source
Studies on the Roles of Calcium and Calcium Receptor in Alleviating the Effect of Aluminum Stress on Antioxidant System for Arabidopsis thaliana [PDF]
, 2011 铝毒已成为酸性土壤中限制植物生长的主要因素之一，因此研究铝胁迫影响植物正常生长的机理具有重要的科学意义。钙在植物生长和发育以及植物抗逆过程中具有重要作用，作为第二信使，胞内自由钙离子在植物很多生理和生化过称中扮演重要角色。已有研究显示，外源钙的施加能缓解植物在铝胁迫下的伤害，但是钙受体（Ca2+-sensingreceptor，CAS）在外源钙缓解环境胁迫中发挥何种作用及变化规律却仍然不清楚。本文以模式植物拟南芥（Arabidopsisthaliana）野生型（Col-0）和CAS反义植株（CASas ...
游春燕
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