Results 31 to 40 of about 2,306 (150)
Shuitu Baochi Xuebao, 2002 土壤质量是现代土壤学研究的前沿领域，它不仅注重土壤在生态系统内支撑生物生产力、保持环境质量的功能，而且还强调食物安全和动植物的健康。近年来，土壤质量问题为国内外土壤学研究的热点，就土壤质量的概念、评价指标、土壤质量与生产力、土壤质量与环境质量及动物、人类健康等方面进行了研究及报导。土壤质量物理指标是土壤最基本的质量指标，土壤结构是土壤质量物理指标重要内容，他控制了生态系统内的许多功能，特别是在黄土高原地区，土壤为化学物质成分均一且抗侵蚀较弱的黄土，土壤结构特性决定了该区土壤质量的主要功能 ...
贺秀斌 郑粉莉 李占斌 张成娥 唐克丽
doaj
Shuitu 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
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Shuitu Baochi Xuebao, 2023 侵蚀沟沟头前进,沟岸扩张,沟床下切严重影响区域粮食生产和环境质量。以宁夏彭阳县玉洼流域3个稳定侵蚀沟的沟头、沟床、沟岸为对象,通过野外调查取样与室内试验相结合的方法,分析了侵蚀沟不同部位(沟头、沟床、沟岸)的土壤理化性质及可蚀性K值,采集0—10,10—25,25—40,40—55,55—70 cm土壤,测定并计算土壤质量含水量(θ)、土壤容重(ρ)、土壤总孔隙度(φ)、土壤黏粒(CLA)、粉粒(SIL)、砂粒(SAN)含量、＞0.25 mm水稳性团聚体含量(R0.25)、土壤平均重量直径(MWD ...
王亚娟, 陈云明, 孙亚荣, 赵敏
doaj
Ecological 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
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Functional 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
Shuitu 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
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Characteristics of Soil Aggregates and Organic Carbon Content for Ecological Restoration Slopes at Xiangjiaba Hydropower Station [PDF]
, 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
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Functional 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
Shuitu 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
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Spatial Distribution Characteristics of Soil Water and Salt in Newly Cultivated Farmland Under Gully Control in Loess Hilly Region [PDF]
, 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