Results 41 to 50 of about 2,821 (179)

土壤管理措施对紫色土坡耕地侵蚀耕层质量的影响

open access: yesShuitu Baochi Xuebao, 2020
紫色土坡耕地是我国西南地区重要的耕地类型,为了探讨土壤管理措施对紫色土坡耕地侵蚀耕层质量的影响,以紫色土坡耕地耕层土壤为研究对象,采用铲土侵蚀模拟试验小区,建立不同侵蚀程度(侵蚀年限)的坡耕地定位试验,以不施肥为对照(CK),设置了化肥管理措施(F)、生物炭+化肥管理措施(B+F),对比分析土壤管理措施对土壤理化性质及力学性能影响,采用土壤质量指数法分析紫色土坡耕地侵蚀耕层质量变化特征。对3种土壤管理条件下坡耕地耕层质量及恢复作用进行评价。结果表明:(1 ...
叶青   +5 more
doaj  

Complementing urban agriculture and green spaces is important for ecosystem functions and biodiversity in cities: A systematic review and meta‐analysis

open access: yesEcological Solutions and Evidence, Volume 6, Issue 3, July–September 2025.
Urban agriculture is in an intermediate state between traditional urban green spaces and conventional rural farms in terms of environmental impacts, so that its contribution to urban sustainability requires complementarity with other green spaces. Abstract As cities expand, they encroach on agricultural land, impacting food production and natural ...
Zeyu Li   +8 more
wiley   +1 more source

Characteristics of Soil Aggregates and Organic Carbon Content for Ecological Restoration Slopes at Xiangjiaba Hydropower Station [PDF]

open access: yes, 2023
[Objective] The effects of ecological engineering restoration technology on soil aggregate stability and organic carbon distribution were analyzed in order to provide a scientific basis for improving soil structure stability and carbon sink function of ...
Duan Xiaoming   +4 more
core   +1 more source

Tree mycorrhizal associations regulate relationships between plant and microbial communities and soil organic carbon stocks at local scales in a temperate forest

open access: yesFunctional Ecology, Volume 39, Issue 6, Page 1550-1566, June 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Forests store substantial amounts of soil organic carbon (SOC), but SOC stocks differ strongly between forest ecosystems dominated by arbuscular mycorrhizal (AM) or ectomycorrhizal (EcM) fungi.
Mengxu Zhang   +10 more
wiley   +1 more source

广西喀斯特地区植被演替对土壤质量的影响

open access: yesShuitu Baochi Xuebao, 2007
以植被演替空间序列代替时间序列的方法,在野外选取广西喀斯特地区4个主要植物群落演替阶段即草地、灌草地、灌丛、乔林的典型样地,对土壤物理、化学和生物学性状进行了比较研究,以探讨植被演替对土壤质量的影响。结果表明:不同的植被演替导致了土壤物理、化学和生物学性质的显著差异。随演替的正向进行,土壤综合肥力指标值(Q I)呈增长趋势,其土壤质量综合指数分别为:草地(0.09)、灌草地(0.16)、灌丛(0.61)、乔林(0.89)。自然植被的正向演替是提高土壤质量的有效途径 ...
王韵   +4 more
doaj   +2 more sources

Spatial Distribution Characteristics of Soil Water and Salt in Newly Cultivated Farmland Under Gully Control in Loess Hilly Region [PDF]

open access: yes, 2023
[Objective] Part of the newly cultivated farmland formed by the “Gully Control and Land Reclamation” project is facing the risk of soil salinization in the loess hilly region.
Jiao Feng   +3 more
core   +1 more source

Plant–microbe interactions drive the rhizosphere microbial assembly and nitrogen cycling in a subtropical forest

open access: yesFunctional Ecology, Volume 39, Issue 5, Page 1274-1287, May 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Interactions between plants and soil microorganisms in the rhizosphere are vital for maintaining the nutrient cycle and stability of terrestrial ecosystems. Nitrogen, closely related to carbon (C) cycling and ecosystem productivity, undergoes transformation by soil ...
Ru Wang   +9 more
wiley   +1 more source

Ensuring sustainable water security through sustainable land management: Research evidences for policy

open access: yesWorld Water Policy, Volume 10, Issue 4, Page 1170-1186, November 2024.
Abstract Sustainable land management (SLM) practices is a key to reducing rates of land degradation and has proven to ensure water security by increasing soil moisture availability, decreasing surface runoff, decreasing soil erosion, increasing infiltration, and decreasing flood discharge. Land degradation is adversely affecting over 75% of the Earth's
Melku Dagnachew   +5 more
wiley   +1 more source

晋南旱垣土壤质地和茬口对小麦产量及水分利用效率的影响

open access: yesShuitu Baochi Xuebao, 2007
在山西临汾、襄汾采用大区对比法研究了土壤质地和茬口对小麦产量及水分利用效率的影响。结果表明:小麦产量轻壤土质夏季复播作物茬口低于夏季休闲茬口,而中壤土质夏季复播作物茬口高于夏季休闲茬口;小麦播前贮水量轻壤土质夏季复播作物茬口低于夏季休闲茬口,而中壤土质夏季复播作物茬口高于夏季休闲茬口;轻壤土质全生育期0~100 cm,0~200 cm,100~200 cm的耗水量均以休闲茬口>大豆茬口>绿豆茬口,中壤土质拔节期贮水量、拔节至成熟阶段0~100 cm,0~200 cm,100~200 ...
崔欢虎   +5 more
doaj   +2 more sources

Feasibility study of utilizing multi-biomarkers in Sebastiscus marmoratus to monitor marine combined pollution [PDF]

open access: yes, 2015
生物标志物检测技术具有效应快、灵敏度高和特异性强的优点,已广泛应用于细菌、寄生虫、病毒等方面的定性检测。但目前对于生物标志物的研究以室内为主,现场应用较少。许多在室内研究中与污染物有较好相关性的生物标志物在现场应用中却不甚理想。因此,将室内研究结果推广到现场检测研究具有十分重要的意义。 在复杂的海洋环境中,单一生物标志物只能从某一层面反应污染物的生物效应,建立一套多生物标志物的生物检测技术就显得尤为重要。综合生物标志物响应指数法(Integratedbiomarkerresponse,IBR ...
陈晔
core  

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