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中国科学院植物研究所科研人员揭示植物-微生物互作对森林磷限制的缓解机制（图）
植物-微生物 森林 磷限制 缓解机制
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2023/2/14
分布于不同纬度的森林生态系统均会受到不同程度的磷限制，且磷限制具有高度的空间异质性。为了适应养分条件变化，植物会最大限度地通过内部养分存留和外部养分获取来维持其养分供应。在森林生态系统中，植物生长所需的磷约有98%来自叶片凋落前的磷重吸收和微生物的磷矿化这两个过程。理解磷限制条件下，植物（重吸收）和微生物（酶解）互作如何共同维持磷供应，对于预测全球变化下的森林生态系统生产力有重要意义，但相关研究仍...
Root functional traits mediate rhizosphere soil carbon stability in a subtropical forest（图）
Root functional traits subtropical forest
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2023/6/2
Plants can be classified as either resource-acquisitive or resource-conservative strategies based on their root traits. Compared with conservative trees, acquisitive trees produce larger amounts of re...
Effects of CaO on the Clonal Growth and Root Adaptability of Cypress in Acidic Soils
CaO Clonal Growth Root Adaptability Acidic Soils
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2023/6/2
Cypress (Cupressus funebris Endl.) is a major tree species planted for forestland restoration in low-fertility soil and in areas where rocky desertification has occurred. Calcium (Ca) fertilizer can a...
Variations in soil biological properties in poplar plantations along coastal reclamation stages
poplar plantations soil biological properties
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2023/6/5
Mudflat reclamation has changed the ecological environment and soil properties in coastal areas. However, the variations in soil biological properties in areas with a history of coastal reclamation ar...
Large macroaggregate properties are sensitive to the conversion of pure plantation to uneven-aged mixed plantations
pure plantation mixed plantations Large macroaggregate properties
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2023/6/5
In forestry, stand conversion influences soil physicochemical and biological properties, yet the effects of conversion of pure plantation to uneven-aged mixed plantation on soil aggregate distribution...
通过研究掌叶覆盆子套种对栗林土壤细菌群落结构及多样性的影响，为科学评价该种植模式的生态风险提供科学依据。采集不同掌叶覆盆子套种密度（0，100株/亩，400株/亩）栗林土样，进行土壤主要化学指标及土壤细菌类群测定与分析。结果表明：不同模式间栗林土壤细菌组成较一致，变形菌门（31.20%）与酸杆菌门（29.70%）为最多门类细菌。套种掌叶覆盆子后，土壤细菌Chao1指数显著提高，而Simpson指数...
Distribution, relationship, and risk assessment of toxic heavy metals in walnuts and growth soil
toxic heavy metals walnuts growth soil
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2023/6/5
Walnut is one the most popular nuts worldwide and contains various mineral nutrients. Little is known, however, about the relationship between toxic heavy metals in walnuts and growth soil. In this st...