411 research outputs found

    Response of Plant Root Growth to Biochar Amendment: A Meta-Analysis

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    Biochar is widely used in agriculture to improve soil fertility and plant growth. However, a comprehensive assessment of how biochar amendment affects plant root growth is lacking. This study investigated the change in plant root biomass in response to biochar application, including impact factors such as the biochar feedstock and application rate, plant type, and soil pH. The Science Direct, Web Of Science, and Scopus databases were employed to search for literature published before 2021. The published papers with at least three replicates of biochar-amended treatments and a control at the same site were selected for meta-analysis. Our results showed that 165 (81.3%) of 203 datasets from 47 published studies indicated positive effects of biochar amendment on root growth with a mean relative increase of 32%. The feedstocks of biochar and its rate of application were the main factors that determined its effects on plant root growth. The increment of root biomass following biochar amendment was the greatest for trees (+101.6%), followed by grasses (+66.0%), vegetables (+26.9%), and cereals (+12.7%). The positive effects mainly depended on feedstock sources, with the highest positive effect (+46.2%) for gramineous, followed by woody plants (+25.8%) and green wastes (+21.1%). Linear regression analysis and SEM (Structural equation modeling) analysis showed that total nitrogen (TN) and available phosphorus (AK) are one of the most important factors affecting the increase of root biomass. These results suggest that biochar can be considered an effective amendment to improve root growth and soil fertility. Biochar feedstock sources, application rates, and plant types should be considered to assess the potential benefits of biochar for root growth and soil quality

    Lu Xun zaoqi wenyan lunwen li suo tansuo de xin wenhua (The 'New Culture' formulated in Lu Xun's early classical-style essays)

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    This article links a number of the main themes expressed in Lu Xun's early wenyan essays, written in Japan in 1906-1908, with the concerns of the New Culture Movement, which emerged later (circa 1919) in China. The author argues that these book-length theses written in dense classical language were in fact intellectual precursors to the New Culture Movement and its aftermath. It delineates a partial outcome of the author's Australian Research Council (ARC) project on the early Lu Xun and his formative period in Japan

    Chen han lou cong shu.

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    Reproduced from various Song and Yuan edition.Caption title from general table of contents.Block print.On double leaves, oriental style, in case.v. 1. Zhou yi ju zheng : 3 juan / Guo Jing zhuan -- v. 2. Dong Han shu kan wu : 4 juan / Liu Ban zhuan -- v. 3. Song ji san chan zheng yao : 6 juan -- v. 4. San fu huang tu : 6 juan -- v. 5. Fo ding zhun sheng tuo luo ni : 1 juan. Zhao lun zhong wu ji jie : 3 juan / Huida shu -- v. 6-7. Tu hui bao jian : 5 juan, bu yi 1 juan / Xia Wenyan, Shiliang zhuan -- v. 8. Er Li chang he ji : 1 juan / Li Fang, Li Zhi tong zhuan.Mode of access: Internet

    Han wen yan jiu.

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    Thesis (M.A.)--香港中文大學.Manuscript.Includes bibliographical references (leaves 24-34).Thesis (M.A.)--Xianggang Zhong wen da xue.Chapter 第一章 --- 韓文繫年 --- p.1-54Chapter 第二章 --- 韓文先導 --- p.55-116Chapter 第一節 --- 緒論 --- p.55-62Chapter 第二節 --- 蕭穎士 --- p.62-65Chapter 第三節 --- 李華 --- p.65-69Chapter 第四節 --- 元結 --- p.69-74Chapter 第五節 --- 獨孤及 --- p.75-80Chapter 第六節 --- 梁肅 --- p.80-87Chapter 第七節 --- 栁冕 --- p.87-93Chapter 第八節 --- 權德輿 --- p.93-98Chapter 第九節 --- 韓會 --- p.98-103Chapter 第十節 --- 結論 --- p.103-116Chapter 第三章 --- 韓文明道 --- p.117-226Chapter 第一節 --- 緒論 --- p.117-125Chapter 第二節 --- 崇儒道 --- p.125-144Chapter 第三節 --- 闢佛老 --- p.144-180Chapter 第四節 --- 表忠孝 --- p.180-193Chapter 第五節 --- 紀政事 --- p.193-202Chapter 第六節 --- 達民隱 --- p.203-213Chapter 第七節 --- 道人喜 --- p.213-223Chapter 第八節 --- 結論 --- p.223-226Chapter 第四章 --- 韓文法古 --- p.227-283Chapter 第一節 --- 緒論 --- p.227-232Chapter 第二節 --- 法六經 --- p.232-243Chapter 第三節 --- 法諸子 --- p.244-250Chapter 第四節 --- 法國策 --- p.250-256Chapter 第五節 --- 法楚騷 --- p.257-260Chapter 第六節 --- 法史遷 --- p.260-269Chapter 第七節 --- 法相如子雲 --- p.270-273Chapter 第八節 --- 法漢魏六朝 --- p.274-279Chapter 第九節 --- 結論 --- p.280-283Chapter 第五章 --- 韓文作法 --- p.284-367Chapter 第一節 --- 命意 --- p.284-297Chapter 第二節 --- 謀論 --- p.298-312Chapter 第三節 --- 造句 --- p.313-328Chapter 第四節 --- 鍊字 --- p.329-339Chapter 第五節 --- 行氣 --- p.339-354Chapter 第六節 --- 本色 --- p.354-367Chapter 第六章 --- 韓文舉隅 --- p.368-462Chapter (一) --- 原道 --- p.368-371Chapter (二) --- 原毀 --- p.371-374Chapter (三) --- 獲麟解 --- p.374-376Chapter (四) --- 爭臣論 --- p.376-379Chapter (五) --- 讀荀 --- p.379-382Chapter (六) --- 張中丞傳後敘 --- p.382-385Chapter (七) --- 論佛骨表 --- p.385-387Chapter (八) --- 答崔立之書 --- p.388-390Chapter (九) --- 答李翊書 --- p.391-394Chapter (十) --- 與李翱書 --- p.394-396Chapter (十一) --- 與孟尚書書 --- p.397-400Chapter (十二) --- 答呂毉山人書 --- p.400-403Chapter (十三) --- 送孟東野序 --- p.403-406Chapter (十四) --- 送李愿歸盤谷序 --- p.407-410Chapter (十五) --- 送董邵南序 --- p.410-412Chapter (十六) --- 送浮屠文暢師序 --- p.412-416Chapter (十七) --- 送廖道士序 --- p.416-418Chapter (十八) --- 送楊少尹序 --- p.419-421Chapter (十九) --- 送鄭尚書序 --- p.421-424Chapter (二十) --- 毛穎傳 --- p.424-428Chapter (二十一) --- 平淮西碑 --- p.428-432Chapter (二十二) --- 南海神廟碑 --- p.433-435Chapter (二十三) --- 試大理評事壬君墓誌銘 --- p.435-438Chapter (二十四) --- 贈太尉許國公神道碑銘 --- p.438-441Chapter (二十五) --- 柳子厚墓誌銘 --- p.442-445Chapter (二十六) --- 殿中少監馬君墓誌 --- p.445-448Chapter (二十七) --- 畫記 --- p.448-451Chapter (二十八) --- 進學解 --- p.451-455Chapter (二十九) --- 祭河南張員外文 --- p.455-457Chapter (三十) --- 祭十二郎文 --- p.457-463Chapter 第七章 --- 韓文褒貶 --- p.463-562Chapter 第一節 --- 褒韓之論 --- p.463-488Chapter 第二節 --- 貶韓之論 --- p.488-562Chapter (一) --- 諛墓辨誣 --- p.490-510Chapter (二) --- 論昌黎諸上書 --- p.510-543Chapter (三) --- 論潮州謝上表 --- p.543-550Chapter 第八章 --- 韓文影響 --- p.563-603Chapter 第一節 --- 道統之建立 --- p.563-581Chapter 第二節 --- 古文之宗師 --- p.581-603附錄Chapter (一) --- 韓愈傳略 --- p.604-616Chapter (二) --- 郡籍考實 --- p.617-624Chapter (三) --- 陽山貶因 --- p.625-638Chapter (四) --- 服丹藥辨 --- p.639-653Chapter (五) --- 大顛書考 --- p.654-67

    Shanghai yu Suzhou zi lai shui zhi gong ying (1860-1937)

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    水作為人類最基本的必需品,本應是人人共用的自然之物。但隨著近代社會的工業化及城市化發展,水資源愈見有限,人們對水的認識也逐漸改變:水被賦予許多新的涵義,並與現代技術結合而成為一種商品。在中國,從1850年到1950年間,使用商品水漸漸成為富裕、衛生、文明、摩登的象徵。本論文主要探討在這百年間用水的演化如何在蘇州城中體現出來。在中國現代供水進程中,上海公共租界最先建立起具有標誌性的自來水廠。而後法租界、華界也爭相仿效建立。但在上海整個城市中,自來水的用水方式沒有得到統一。租界內漂亮的洋房在屋內即有供水,而租界內華人居住的弄堂與租界之外的華界地區仍使用水夫挑水。這種差異帶出了西人和華人的區別,同時還是富人和窮人生活方式的區別。在本研究重點研究的蘇州城內,清末至民國時期,地方精英一直試圖建立現代象徵的自來水,卻未能成功。最終,城內少數富裕商戶合資開掘自流井,然後將井水接連水管入屋,創建了蘇州模式的自來水。這與整個城市供水為目標的自來水廠相差甚遠,但由於民國時期蘇州城內勢力分散,沒有力量創辦統一的供水模式,只有少數的富裕人家可以使用自流井,大多數的居民,仍然大量依靠淺水井和河水。Water, as an essential ingredient for life, is supposed to be freely used. However, in the age of industrialization and urbanization, with fear of water shortage and environmental degradation, people imposed new ideas on this natural resource, and transformed water from public good into a tradable commodity by using new technology. In China from 1850 to 1950, commoditized water supply made people feel affluent, healthy, civilized, and modern. This thesis examines the transformation of water use in the city of Suzhou.The establishment of the first water supply company in the Shanghai International Settlement in the late nineteenth century was a significant milestone of China's modern water supply. Soon after that the French Concession and the Chinese Zone attempted to follow the practice. The services of water supply were yet never unified in Shanghai. While better-off households in the Foreign Concession enjoyed indoor tap water supply, many others, especially those who lived in the Chinese walled city, bought water directly in streets installed with water taps. The way to consume water reflected living standard.During late Qing period and China’s Republican period, the local elites of Suzhou City also attempted to set up modern water supply, but failed with insufficient capital. Eventually, a few wealthy merchants formed a small company of water supply. Instead of using steam engines to pump water from river, the company opened artesian wells, and built water pipes to transport water to households. This created the Suzhou model of water supply. However, because of competing local forces, this modern water supply in Suzhou was of a small scale. Only a few rich people could afford to consume the water, a majority of the Suzhou population still relied on ordinary shallow wells and rivers to have their daily water.Detailed summary in vernacular field only.Detailed summary in vernacular field only.Detailed summary in vernacular field only.陳文妍.Parallel title from added title page.Thesis (Ph.D.) Chinese University of Hong Kong, 2016.Includes bibliographical references (leaves 178-190).Abstracts also in English.Chen Wenyan

    A hygiene ventilation renovation: Systematic partial engineering control for small sharing room with ceiling mixing ventilation for “corona-proof”

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    Efficient local air recirculation at ceiling level promote the performance of purifiers and anti-epidemic efficiency of mixing ventilation in a small shared roomscorona-proof ventilationArchitecture, Urbanism and Building Sciences | Building Technolog
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