Results 31 to 40 of about 12,658 (157)
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
持続可能な水資源としての排水再利用(学術講演会) [PDF]
, 2008 84p平成20年1月31日開催textapplication/pdfconference ...
16510, アサノ, タカシ, 浅野, 孝
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Journal of Applied Ecology, Volume 62, Issue 8, Page 1889-1901, August 2025.By quantifying the diet composition of GAPs over crop stages, farm types and years, this study reveals that generalist predators have potential to produce a stable, predictable top‐down effect on pests in rice agro‐ecosystems. Therefore, promoting the field densities of ubiquitous generalist predators will likely enhance pest management and support ...
Gen‐Chang Hsu +4 more
wiley +1 more source
Shuitu Baochi Xuebao, 2006 通过室内土柱模拟试验的方法，研究了再生水灌溉对土壤理化性质的影响。结果表明：再生水灌溉对土壤扩散率和饱和导水率的影响与连续灌溉再生水的次数有关，短时间灌溉有降低的作用，但随着灌溉次数的增加，土壤扩散率和饱和导水率有增加的趋势；同时，随着灌溉次数的增加，土壤pH值降低，土壤有机质和全盐量增加；土壤溶液中各离子浓度有显著变化。灌溉5次之后，除0～10cm土层全盐量为0．107％外，其他各层均低于0．1％的限度；0～10，10～20，30～40cm土层的ESP均在5％～10％范围之内，20 ...
杨林林 +3 more
doaj +2 more sources
水利用システムの多様な代替案設計のための多目的最適化を用いた枠組みの提案 [PDF]
, 2015 学位の種別: 課程博士審査委員会委員 : （主査）東京大学教授 花木 啓祐, 東京大学教授 森口 祐一, 東京大学教授 古米 弘明, 東京大学講師 春日 郁朗, 東京大学教授 平尾 雅彦University of Tokyo ...
MAKI SEIYA, 牧 誠也
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The need for carbon finance schemes to tackle overexploitation of tropical forest wildlife
Conservation Biology, Volume 39, Issue 1, February 2025.Abstract Defaunation of tropical forests, particularly from unsustainable hunting, has diminished populations of key seed dispersers for many tree species, driving shifts in forest community composition toward small‐fruited or wind‐dispersed trees with low wood density. Such shifts can reduce aboveground biomass, prompting calls for overexploitation to
Caroline E. Milson +3 more
wiley +1 more source
, 2016 随着世界经济一体化和区域经济集团化进程的加快,加强东北亚自由贸易合作已势在必行。作为中国东北对外开放窗口的大连,正逐渐成长为东北亚重要国际航运中心、东北亚国际物流中心与区域性金融中心。而在这一进程中,恰逢从山东半岛到辽东半岛的渤海跨海大通道也在论证与启动之际,所以大连应当积极跟进时代潮流,勇于承担国家使命,借重这一渤海蓝色新干线,全力打造东北亚自由贸易先导区。为此,应当透视大连市域提升为东北亚自由贸易先导区的时代背景,论证大连市域提升为东北亚自由贸易先导区的发展历程 ...
李靖宇, 李靖宇 莫岩
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Reading Research Quarterly, Volume 60, Issue 1, January/February/March 2025.In this study, we examine how social connectedness is semiotically constructed through time‐space framing in two youths’ transnational communication. The youths’ narratives show how they positioned themselves in proximity with their peers within particular contexts that supported their actions and emotions, or ways of thinking and feeling.
Wan Shun Eva Lam, Jue Wu
wiley +1 more source
Shuitu Baochi Xuebao, 2011 采用随机区组设计,研究了再生水(Reclaimed Water)灌溉黑麦草(Lolium perenne L.)、早熟禾(Poapratensis)、高羊茅(Festuca arundinacea)、结缕草(Zoysia japonica)、野牛草(Buchloe dactyloides)、麦冬(Radix liriopes)6种草坪草对土壤质量的影响,结果表明:(1)再生水灌溉能增加土壤养分,但根据养分在土壤中迁移的难易程度及不同草坪的根系分布特征,再生水灌溉输入的养分在土壤剖面分布不同;(2 ...
李晓娜 +5 more
doaj
REMOVAL MECHANISM OF NITROGEN AND PHOSPHORUS IN SECONDARY EFFLUENT IN A SMALL CHANNEL [PDF]
, 2018 Today, pollution sources such as urban areas and agricultural lands cause eutrophication. The main cause of eutrophication is excessively supplied nitrogen and phosphorus. They cause landscape change, create offensive smells and ecological change.
小川 智也
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