Results 41 to 50 of about 12,658 (157)

Biosphere reserves in the megadiverse Cape Floristic Region are effective in conserving arthropod diversity 开普植物区的生物圈保护区有效保护了节肢动物多样性

open access: yesIntegrative Conservation, Volume 3, Issue 4, Page 312-329, December 2024.
Biosphere reserves aim to protect global biodiversity alongside social and economic development. In the Cape Floristic Region, biosphere reserves are an effective conservation approach to protect arthropods against habitat transformation in this biodiverse region.
Michael J. Samways   +3 more
wiley   +1 more source

Eco-treatment Engineering of Sewage Forest Land in Xiamen [PDF]

open access: yes, 2006
文章介绍了厦门市狐尾山原生生活污水林地生态处理工程依循“污水-土壤-植物”资源再生机制,提出了“截流井+氧化塘(调节池)+污水动力输送、管网投配+林地+城市景观林地 ...
卢昌义, 胡宏友, 谢海生
core  

Water pollution and its recovery in the Naktong-gang river, Korea [PDF]

open access: yes, 2000
The water pollution is a serious environmental problem in Korean rivers, especially in the Naktong-gang River ofthe Republic of Korea which was rapidly developed an industrialized country. The Naktong-gang River is 525 kmlong and flows to Pusan City, the
Nakagoshi, Nobukazu   +2 more
core   +1 more source

Fungal systems for lignocellulose deconstruction: From enzymatic mechanisms to hydrolysis optimization

open access: yesGCB Bioenergy, Volume 16, Issue 5, May 2024.
Biomass contains complex sugars and aromatic polymers that have the potential to serve as sustainable alternatives to fossil fuels and chemicals. Fungi possess specialized enzyme systems capable of breaking down lignocellulose into fermentable building blocks. This review analyses recent advancements in intricate fungal decomposition toolkits, shedding
Fengyun Ren   +5 more
wiley   +1 more source

閉鎖性水域での競争的漁業と生態的環境及び地域(局所)的TAC 【論文】 [PDF]

open access: yes, 2012
Departmental Bulletin PaperA basic model of the mathematical theory of regional(or local) populations in a particular water area—that is, a semi-enclosed water area which is affected by an exogenous change to its regional (or local) ecological ...
鈴木, 康夫
core  

Local perceptions of anthropogenic and climate factors affecting the use and the conservation of Detarium microcarpum and Detarium senegalense in Burkina Faso (West Africa) 当地人对影响布基纳法索(西非)Detarium microcarpum(小果甘豆)和Detarium senegalense(甘豆)的使用和保护的人为因素和气候因素的看法

open access: yesIntegrative Conservation, Volume 3, Issue 1, Page 58-75, March 2024.
Local populations are aware of the decline and disappearance of Detarium species in their habitats, attributing this trend to excessive human exploitation and the effects of climate change. Thus, Detarium plant resources may face challenges in forests with different levels of protection status due to habitat fragmentation and the effects of climate ...
Adama Taonda   +4 more
wiley   +1 more source

基于Hydrus-3D模型的再生水涌泉根灌模拟及布置参数预测

open access: yesShuitu Baochi Xuebao, 2019
为了探寻再生水果树涌泉根灌条件下灌水器的最优布设埋深和间距,以饱和―非饱和土壤水分运动理论为依据,选取了典型研究区一年和多年生桃树,利用Hydrus-3D模型对再生水涌泉根灌土壤水分入渗过程进行数值模拟,并将模拟结果与田间试验实测结果进行对比验证,同时预测了双源涌泉根灌灌水器的最优布置参数。结果表明,Hydrus-3D模型对再生水涌泉根灌湿润锋运移距离以及灌水结束后不同时刻含水量分布的模拟值和实测值之间决定系数R2均大于临界决定系数,均方根误差RMSE分别小于1.5和0.05,且F检验P值均在0 ...
樊向阳   +6 more
doaj  

修订《水污染防治法》推动循环经济发展 [PDF]

open access: yes, 2006
循环经济模式是我国经济走向可持续发展的必然选择。我国目前的水资源形势不容乐观。在修订《水污染防治法》的过程中,应当针对我国当前水污染防治工作中存在的一些突出的实际问题,借鉴各地在立法方面的成功经验和做法,加强完善控制工业污染、推广中水回用、促进城市污水处理和推动“节水型社会”建设方面的法律规定 ...
朱进文
core  

污水灌溉对苜蓿生长下土壤部分理化性质的影响

open access: yesShuitu Baochi Xuebao, 2011
通过盆栽试验研究了污水、再生水等不同灌溉水质对苜蓿三次刈割后土壤部分理化性质的影响。结果表明:相对于清水灌溉,污水及再生水处理能显著降低土壤pH值,增加EC值。第二次刈割时污水、再生水处理与清水相比土壤无机氮含量分别增加了63.59%和35.02%,第三次刈割时分别增加了82.18%和30.72%。与清水灌溉相比,污灌处理土壤Cd含量在三次刈割中分别增加了33%,117.65%和138.89%,再生水灌溉处理在三次刈割中分别增加了13.33%,64.71%和61.11%。根据《土壤环境质量标准 ...
张志华, 陈为峰, 石岳峰
doaj  

生物质炭和果胶对再生水灌溉下玉米生长及养分、重金属迁移的影响

open access: yesShuitu Baochi Xuebao, 2017
利用根箱试验方法比较了生物质炭和果胶对再生水灌溉下土壤—植物系统养分和重金属迁移特征的影响及差异性。结果表明,再生水灌溉不利于植物的生长,果胶和生物质炭两个处理相比,虽然植株生长无显著差异,但果胶处理植株的生长状况优于生物质炭处理;再生水灌溉时,果胶处理地上部生物量比对照增加了59.32%。与蒸馏水灌溉相比,再生水灌溉增加了根际土壤pH;灌溉水源相同时,果胶处理根际土壤pH略低于生物质炭处理。生物质炭和果胶都增加了土壤养分的含量,果胶对土壤碱解氮、有效磷和有机质的增加效果优于生物质炭 ...
  +5 more
doaj  

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