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Journal of Lake Sciences | 2018

我国南方桉树(Eucalyptus)人工林区水库突发性泛黑形成机理初探

李一平; Li Yiping; 罗凡; Luo Fan; 郭晋川; Guo Jinchuan; 李荣辉; Li Ronghui; 王芳; Wang Fang; 高广灿; Gao Guangcan

桉树(Eucalyptus)在我国南方大规模种植,最快两三年成材,经济价值高,但近来却被认为是抽水机、绿色沙漠,甚至传言有毒.特别是近年来桉树人工林区水库出现的泛黑现象——水体呈现黑褐色并伴有涩味,给种植地附近居民造成了很大的恐慌.并且其黑水形成机理、物质来源及触发条件等尚不清楚.基于此,本文选取我国南方桉树人工林区典型水库,开展了水体泛黑现象成因研究:于2015年8月2016年4月对广西南宁市那降水库、天雹水库、百合水库分别进行了4次水体垂直分层采样,测定其理化指标,并结合当地水库管理站提供的水文数据进行综合分析.结果表明,桉树人工林区水库泛黑与特定季节及特殊气候条件有关,水体温度分层结构失稳是黑水物质运移的主要动力因素;夏季水库水温分层结构稳定,限制了底层致黑物质向上迁移,溶解氧等水质指标分层明显,秋冬季节分层消失,水体发生垂直交换,给底层致黑物质提供了上翻的作用力,导致泛黑现象发生.硫化物、单宁酸、铁、锰等物质季节性及空间分异特征与水温季节性分层特性密切相关.桉树林区水库水体铁和锰浓度最高可达2.93和3.46 mg/L,桉树茎、叶在水体中浸出大量单宁酸,在硫化物、单宁酸、铁、锰同时存在的条件下,发生铁、锰与硫化物,硫化物与单宁酸,铁、锰与单宁酸等一系列反应,生成黑色络合物,导致水库泛黑.研究结果可为保障桉树人工林区饮用水源地安全提供指导,并为桉树人工林区水库黑水深入研究奠定基础,引领更多学者进行深入研究.


Archive | 2015

Multichannel gool prefab

Chen Jianguo; Guo Jinchuan; Ling Xianzong; Liu Luqiang; Peng Huajuan; Zhou Lixin


Archive | 2015

Closed conduit groove prefab

Chen Jianguo; Guo Jinchuan; Ling Xianzong; Liu Luqiang; Peng Huajuan; Zhou Lixin


Archive | 2015

Modular concrete gool

Chen Jianguo; Guo Jinchuan; Ling Xianzong; Liu Luqiang; Peng Huajuan; Zhou Lixin


Archive | 2013

Multi-angle cement concrete surface crack resistance verifying device

Chen Jianguo; Guo Jinchuan; Ling Xianzong; Liu Luqiang; Peng Huajuan; Zhou Lixin


Journal of Lake Sciences | 2018

Characterizing the purification effect on the ecological reservoir and its influencing factors

Wu Jianqiang; Lu Shiqiang; Zhu Yongqing; Chen Yu; Yang Yifan; Chen Li; Chen Jianguo; Guo Jinchuan; Xiong Lijun; Wu Jian; Tang Hao; Wang Min


Archive | 2017

Anti-crack corrosion-resistant concrete admixture as well as preparation and application of anti-crack corrosion-resistant concrete admixture

Chen Jianguo; Chen Guoqing; Liu Luqiang; Sun Guishan; Guo Jinchuan; Peng Huajuan; Zhou Lixin; Wang Zhongmin; Chen Shuliang; Li Dachun; Zeng Hong; Yang Jiankun; Man Zhiqiang; Huang Xiaobing; Liang Xiaoning; Wei Meifu


Archive | 2017

High-bonding corrosion-resistant concrete interface treating agent and application thereof

Chen Jianguo; Sun Guishan; Guo Jinchuan; Chen Guoqing; Liu Luqiang; Peng Huajuan; Zhou Lixin; Wang Zhongmin; Chen Shuliang; Li Dachun; Zeng Hong; Yang Jiankun; Man Zhiqiang; Huang Xiaobing; Liang Xiaoning; Wei Meifu


Archive | 2016

A modifying method of a recycled aggregate and modified-recycled-aggregate concrete

Chen Jianguo; Guo Jinchuan; Ling Xianzong; Xu Xianxu; Peng Huajuan; Liu Luqiang; Zhou Lixin; Chen Shuliang; Li Dachun; Jiang Qiaoling; Zeng Hong; Yang Jiankun; Wang Xinkai; Dou Boyuan; Huang Xiaobing; Liang Xiaoning; Xiong Wan; Jiang Yaqing; He Hui


Archive | 2015

Method for detecting shearing strength of interlayer bonding surface of rock filled concrete of constructional engineering

Chen Jianguo; Guo Jinchuan; Ling Xianzong; Xu Xianxu; Liu Luqiang; Peng Huajuan; Zhou Lixin; Wang Xinkai

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Li Ronghui

Chinese Academy of Sciences

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