Canopy Interception Ability of Different Types of Garden Plant Communities [PDF]
[Objective] The canopy interception ability of different types of garden plant communities was determined in order to provide a theoretical basis for selecting the plant community with the best canopy interception effect.
Liu Jianjun, Pang Weihua, Sun Yajie
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Response and Recovery of Pinus Massoniana Populations to Drought in Erosion Zone of Changting County, Fujian Province [PDF]
[Objective] The response of the pioneer tree species Pinus massoniana to drought and subsequent recovery in the erosion zone of Changting County, Fujian Province was determined in order to provide scientific support for the recovery and reconstruction of
Cui Yujie +5 more
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Developments and applications of terrestrial biosphere model [PDF]
Exchanges of energy and matter between terrestrial biosphere and atmosphere and hydrosphere create critical feedbacks to Earth’s climates. To quantify how terrestrial ecosystems respond and feedback to global changes, terrestrial biosphere model (TBM ...
Chang, J., Peng, S.-S., Yue, C.
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HYDROLOGICAL OBSERVATION IN AN EVERGREEN BROAD LEAVED FOREST IN THE WUYI MOUNTAINS [PDF]
[中文文摘]对武夷山甜槠林成熟林水文学效应的研究结果表明:观测期间,年大气降水量2678.78mm,林内雨量2182.04mm,林冠截留量为496.74mm;林内雨中,穿透雨量2082.08mm,树干茎流99.96mm;到达甜槠林地作用面的林内雨量中,被地表枯枝落叶层截留的雨量为159.84mm,地表径流量11.6mm,地下渗流量109.32mm,其余林内雨量形成土壤含水量增量并由地表物理蒸发、根系吸收以及植物蒸腾所消耗;甜槠林地o~200cm土层水分初渗率78.6mm·min-1,稳渗率15.5mm ...
何建源(福建武夷山国家级自然保护区管理局) +7 more
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Research on Bamboo Riparian Buffer Ecosystems for Diffuse Pollution Prevention [PDF]
进入农业系统的过量氮(N)、磷(P)极易通过地表径流或地下潜流、渗漏及农田排水进入水环境,引发水体富营养化。具有一定群落结构的河岸植被土壤系统内部具有较大的生物生存空间和相互作用区域,其间生物地球化学联合机制,可以减缓径流、捕获泥沙、截断或去除地表径流、壤中流或渗漏水及浅层地下水中的氮磷等元素,有效改善受纳水体的水质。了解河岸植被土壤系统削减污染物和净化水质的机制及其影响因素,有助于加强对河岸带的管理和重建工作,为防治面源污染提供科学依据。 本文采用土壤剖面渗透水分层采集装置 ...
方婧
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Study on Nitrogen Retention in Riparian Vegetation System [PDF]
随着经济发展和人口增加,世界范围内水体污染日趋严重,已经成为限制经济社会发展和威胁人类健康的重大环境问题。河岸植被土壤系统能显著减少地下水和地表水中的污染物进入水生生态系统。在我国南方丘陵地区,广泛种植的竹林是常见的次生植被群落,因此对河岸竹林土壤系统的深入研究,对于防治我国的环境污染和受纳水体的富营养化问题具有十分重要的理论和现实意义。 本文利用具有创新意义的土壤壤中流采集装置,结合水样氮素的分析与土壤反硝化实验,将河岸植被土壤作为一个系统,了解其内部的主要生物地球化学过程 ...
孟鲁伟
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GUO Jian-fen1; 2; YANG Yu-sheng2*; CHEN Guang-shui2; LIN Peng1 1 College of Life Science; Xiamen University; Xiamen; P. R. China 2 College of Geography Science; Fujian Normal University; Fuzhou; P. R. China; [PDF]
尽管溶解有机碳(DOC)和溶解有机氮(DON)在森林养分循环中的作用日渐为人们所关注,但对它们的浓度及动态,特别是对亚热带森林DOC 和DON 的研究甚少。本文于2002 年通过野外天然降水及亚热带木荷和杉木人工林(monoculture plantations of Schima superba and Cunninghamia lanceolata,15 年生)穿透雨和树干茎流各水样的收集及室内各水样中DOC、NO3 -N、NH4 -N 和总溶解有机氮(TDN)浓度的测- +定,其中DON ...
杨玉盛 +3 more
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This study deals with the capacity for nutrient conservation,the balance of carbon and oxygen as well as the buffering of acid rain in the succession of vegetation of lower subtropical zone of southern China.The results show that:(1)N,P,K contents of ...
Guan, D, Peart, MR
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Overview of object detection methods based on LiDAR point cloud under adverse weather conditions [PDF]
With the rapid development of autonomous driving technologies, including sensors, data processing, visual perception, vehicle control, decision making, and artificial intelligence, achieving fully automated Level-5 autonomous driving has become a ...
Heng WANG +4 more
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Design and Implementation of USB-TV Stick [PDF]
对一种基于uSb 2.0的国标dMb-TH数字电视接收棒的系统实现方案进行了研究,采用AdMTV102高频头,凌汛dMb-TH信道解调器,Cy7C68013-uSb 2.0传输控制芯片和基于dIrECTSHOW技术的媒体播放器。介绍了系统各部分相应的软硬件构成以及整个系统的实现过程。经验证,该方案体积小、功耗低、支持热插拔、接收播放效果良好,有很好的市场前景。A design of USB-TV stick of national DMB-TH is researched,using Tuner ...
徐芳, 程恩
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