rhizosphere

简明释义

英[ˈraɪzəʊˌsfɪə]美[ˈraɪzəˌsfɪr]

n. [植] 根围（围绕植物根系的区域）

英英释义

单词用法

同义词

反义词

例句

1.More than 250 strains of soil microbes were isolated from ginseng rhizosphere soil.

从人参根围土壤中分离到250多株土壤微生物。

2.The essentiality and influencing factors of protozoa distribution in rhizosphere soil were also discussed in this paper.

笔者还讨论了根际土壤原生动物分布动态变化的内在和外在原因。

3.The secretion from the roots of plant which have been verified to benefit for auto-toxic effect have serious effect on microorganism of rhizosphere.

植物根系分泌物中的酚酸已被鉴定出对植物产生自毒作用，并对根际微生物有重要影响。

4.The major ecological distribution of micro-organisms in non-rhizosphere and rhizosphere soil of reed, Typha and Scirpus were studied in this paper.

研究了河北衡水湖湿地芦苇、长苞香蒲、水葱的根际与非根际土壤中．主要微生物类群的数量分布。

5.The photosynthetic rate and excretory ability affected the nitrogenase activity in the rhizosphere.

水稻的光合作用及报分泌能力影响根际固氮活性。

6.The results suggested that Urea was in favor of the rhizosphere mycobiota balance.

试验表明：施用尿素有利于协调根际真菌区系平衡；

7.The ecological distribution of denitrifying bacteria on rhizoplane and in rhizosphere of rice and barley was studied.

研究了水稻、大麦根际和根际反硝化细菌的生态分布。

8.The health of the plant largely depends on the microorganisms in the rhizosphere.

植物的健康在很大程度上依赖于根际中的微生物。

9.Farmers often apply fertilizers to enhance nutrient availability in the rhizosphere.

农民经常施用肥料以增强根际中的养分可用性。

10.Research shows that the diversity of bacteria in the rhizosphere can affect plant growth.

研究表明，根际中细菌的多样性会影响植物生长。

11.Mycorrhizal fungi play a crucial role in the rhizosphere by improving water uptake.

菌根真菌在根际中发挥着至关重要的作用，通过改善水分吸收。

12.The interaction between roots and soil in the rhizosphere is vital for nutrient cycling.

在根际中，根系与土壤之间的相互作用对养分循环至关重要。

作文

The term rhizosphere refers to the narrow region of soil that is directly influenced by root secretions and associated soil microorganisms. This area plays a crucial role in plant health and soil fertility. Understanding the rhizosphere is essential for both agricultural practices and ecological studies. In this essay, I will explore the significance of the rhizosphere, its components, and its impact on plant growth and the environment. The rhizosphere is not just a physical space; it is a dynamic environment where complex interactions occur. Roots exude various organic compounds, including sugars, amino acids, and organic acids, which serve as food for soil microorganisms. These microorganisms, in turn, play a vital role in nutrient cycling, breaking down organic matter, and enhancing soil structure. The health of the rhizosphere directly affects the overall health of the plant, as it is here that essential nutrients are absorbed. One of the fascinating aspects of the rhizosphere is its biodiversity. It hosts a wide variety of organisms, including bacteria, fungi, nematodes, and protozoa. These microorganisms can have beneficial or detrimental effects on plants. For instance, mycorrhizal fungi form symbiotic relationships with plant roots, improving water and nutrient uptake. On the other hand, certain pathogenic bacteria and fungi can lead to diseases that negatively impact plant growth. Therefore, understanding the composition of the rhizosphere is crucial for managing plant health and maximizing crop yields. In agriculture, the manipulation of the rhizosphere can lead to improved crop production. Practices such as crop rotation, cover cropping, and the application of organic amendments can enhance the microbial diversity and activity within the rhizosphere. For example, planting legumes can increase nitrogen levels in the soil, benefiting subsequent crops. Additionally, the use of biofertilizers, which contain beneficial microorganisms, can promote a healthy rhizosphere and improve plant resilience against stressors such as drought and disease. Moreover, the rhizosphere has significant implications for environmental sustainability. Healthy rhizospheres contribute to soil health, which is essential for maintaining ecosystem services such as water filtration, carbon sequestration, and habitat provision for diverse species. Furthermore, understanding the rhizosphere can aid in developing strategies to mitigate soil degradation and combat climate change. For instance, enhancing the rhizosphere can improve soil structure and reduce erosion, leading to more sustainable land management practices. In conclusion, the rhizosphere is a vital component of the soil-plant system, influencing plant health, agricultural productivity, and environmental sustainability. By studying and understanding the interactions within the rhizosphere, we can develop better agricultural practices and promote healthier ecosystems. As we face global challenges such as food security and climate change, the importance of the rhizosphere cannot be overstated. It is essential for researchers, farmers, and policymakers to recognize and harness the potential of the rhizosphere to create a more sustainable future.

“根际”一词指的是直接受到植物根部分泌物和相关土壤微生物影响的狭窄土壤区域。这个区域在植物健康和土壤肥力中起着至关重要的作用。理解根际对于农业实践和生态研究都是必不可少的。在这篇文章中，我将探讨根际的重要性、其组成以及对植物生长和环境的影响。 根际不仅仅是一个物理空间；它是一个动态环境，复杂的相互作用在这里发生。植物根部分泌各种有机化合物，包括糖类、氨基酸和有机酸，这些物质为土壤微生物提供食物。这些微生物在养分循环、分解有机物和改善土壤结构方面发挥着重要作用。根际的健康直接影响植物的整体健康，因为正是在这里吸收了必需的养分。 根际的一个迷人之处在于它的生物多样性。它栖息着各种各样的生物，包括细菌、真菌、线虫和原生动物。这些微生物对植物的影响可以是有益的，也可以是有害的。例如，菌根真菌与植物根部形成共生关系，改善水分和养分的吸收。另一方面，某些病原细菌和真菌会导致植物生病，从而对植物生长产生负面影响。因此，了解根际的组成对于管理植物健康和最大化作物产量至关重要。 在农业中，操控根际可以提高作物生产。轮作、覆盖作物和施用有机改良剂等做法可以增强根际内的微生物多样性和活性。例如，种植豆科植物可以增加土壤中的氮含量，惠及后续作物。此外，使用生物肥料（含有益微生物）可以促进健康的根际，提高植物抵御干旱和疾病等压力因素的能力。 此外，根际对环境可持续性具有重要意义。健康的根际有助于土壤健康，而土壤健康对维持水过滤、碳固存和为多样物种提供栖息地等生态系统服务至关重要。此外，了解根际可以帮助制定减缓土壤退化和应对气候变化的策略。例如，改善根际可以改善土壤结构，减少侵蚀，从而导致更可持续的土地管理实践。 总之，根际是土壤-植物系统的重要组成部分，影响植物健康、农业生产力和环境可持续性。通过研究和理解根际内的相互作用，我们可以制定更好的农业实践，促进更健康的生态系统。随着我们面临全球食品安全和气候变化等挑战，根际的重要性不容小觑。研究人员、农民和政策制定者必须认识到并利用根际的潜力，以创造一个更加可持续的未来。