Results 21 to 30 of about 1,183 (154)
, 2009 通过2004年2～12月对古尔班通古特沙漠南缘2年生人工梭梭和沙拐枣混交林内3条典型坡面土壤水分进行了系统监测与研究。结果表明:人工林土壤水分状况受季节性降水、人工林种植密度、地形因子的影响而出现明显的时空分异。在空间上将土壤水分变化划分为三层,0～30cm为活跃层,30～60 cm为次活跃层,60～120 cm为相对稳定层。通过主成分分析,得出地形因子、种植密度对0～30 cm土层土壤水分的影响次序为坡度>坡向>种植密度>高程,30～60 cm土层为坡向>种植密度>坡度>高程,60～120 ...
付恒飞, 宋春武, 蒋进, 陈钧杰
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Integrative Conservation, Volume 4, Issue 3, Page 362-380, September 2025.Occurrences of dust storms and long‐distance movement of dust across landscapes is constantly increasing in south Asia. This dust is expected to have profound impact on vegetation health and sustainability as dust may contribute to nutrient budgets of the forest ecosystems, while it could impart various stresses to the plants.
Shree P. Pandey +2 more
wiley +1 more source
The Resistance Research and Application of Typical Plants for Island Vegetation Restoration [PDF]
, 2016 植被是海岛生态系统的重要组成部分，海岛植被修复对加快恢复受损的海岛生态环境，改善海岛居民的生活生产条件起关键作用。目前，我国大部分海岛生态破坏比较严重，而海岛植被修复工作起步较晚，海岛植被修复技术还不完善，对环境恶劣海岛植被修复依然缺乏良策。本文依托平潭海岛景观生境修复技术研究与示范项目，以木麻黄（Casuarinaequisetifolia）、夹竹桃（Neriumindicum）和台湾相思（Acaciaconfusa）为实验材料，室内人为控制干旱胁迫、根系盐胁迫和叶片盐胁迫的程度及时间 ...
陈慧英
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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, 2020 为研究蒸发阶段不同覆膜开孔条件下土壤水分运动，在室内进行蒸发模拟试验的基础上，采用HYDRUS-1D模型对不同覆膜开孔率和大气蒸发能力条件下土壤剖面含水率和潜水蒸发量动态变化进行了模拟，并与实测资料进行比较。结果表明：土壤剖面含水率同时受大气蒸发能力和覆膜开孔率的共同作用，随覆膜开孔率和大气蒸发能力的增加，土壤剖面含水率减小，且上层土壤含水率差异比下层土壤明显；覆膜开孔率和大气蒸发能力-定时，土壤剖面含水率在蒸发初期有所增加，蒸发后期基本保持稳定；覆膜对潜水蒸发的阻滞作用明显，但开孔率增加到-定数值时 ...
文利军 +5 more
doaj
, 2007 应用非饱和土壤水运动理论,建立膜下滴灌条件下土壤水分运动二维数值模拟模型,研究了田间层状土壤在膜下滴灌条件下土壤水分运动特征。应用不同小区不同灌水处理的实测值与模拟值进行对比,同时对模型做了精度分析,结果表明符合精度要求,这说明所建立的模型能客观地反映实际土壤条件下的水分运动情况。研究结果表明:土壤剖面30~40 cm粘土层使土壤水分运动具有很大的差异,0~30 cm变化明显,而40 cm以下土壤水分运动的变化较小。膜下滴灌应该采取灌水量小 ...
串志强, 方怡向, 盛钰, 赵成义
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Effects of Different Vegetation Restoration Measures on the Disintegration Characteristics of Eroded Degraded Land of Pinus massoniana in Red Soil Region [PDF]
[Objective] To investigate the characteristics of soil disintegration under different vegetation restoration measures in degraded land of Pinus massoniana, compare the improvement of soil disintegration in severely degraded P.
LIN Qiang +8 more
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Functional Ecology, Volume 38, Issue 11, Page 2433-2446, November 2024.Read the free Plain Language Summary for this article on the Journal blog. Abstract Plant phosphorus (P) acquisition strategy is considered to be an intrinsic driver behind plant succession. However, variations in plant P acquisition strategies in connection to soil P fraction changes after wetland drainage remain unclear.
Zhenhui Jiang +6 more
wiley +1 more source
Shuitu Baochi Xuebao, 2022 为探究苔藓覆盖对喀斯特山地土壤剥蚀过程影响的机理,通过野外采集原状土样,结合上方来水冲刷剥蚀试验,分析了不同坡度(5°,20°)与不同土壤含水率(饱和含水率、田间含水率)条件下苔藓盖度与土壤分离能力间的定量关系,解析了坡面流水力特征参数对苔藓覆盖的响应规律。结果表明:在5°和20°坡度下,苔藓覆盖下饱和土壤的土壤剥蚀率分别比田间含水率土壤高33.9%和10.8%。与裸土层相比,苔藓覆盖能够在高土壤含水率条件下有效抑制土壤剥蚀率,且在低坡度下效果更显著 ...
蒋娟 +4 more
doaj
Hydroecological effects of mining and its restoration ways in coal mining areas of Western China [PDF]
The mining areas in arid and semi-arid region have become important coal production bases to ensure China’s energy strategic security, however, coal development by large-scale and high-intensity mining has triggered a series of water resources and ...
Guangrong GE +7 more
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