標(biāo)題: Titlebook: Conservation Management of Freshwater Habitats; Lakes, rivers and we P. S. Maitland,N. C. Morgan Book 1997 Chapman & Hall 1997 Wildlife.con [打印本頁] 作者: misperceive 時間: 2025-3-21 18:52
書目名稱Conservation Management of Freshwater Habitats影響因子(影響力)
書目名稱Conservation Management of Freshwater Habitats影響因子(影響力)學(xué)科排名
書目名稱Conservation Management of Freshwater Habitats網(wǎng)絡(luò)公開度
書目名稱Conservation Management of Freshwater Habitats網(wǎng)絡(luò)公開度學(xué)科排名
書目名稱Conservation Management of Freshwater Habitats被引頻次
書目名稱Conservation Management of Freshwater Habitats被引頻次學(xué)科排名
書目名稱Conservation Management of Freshwater Habitats年度引用
書目名稱Conservation Management of Freshwater Habitats年度引用學(xué)科排名
書目名稱Conservation Management of Freshwater Habitats讀者反饋
書目名稱Conservation Management of Freshwater Habitats讀者反饋學(xué)科排名
作者: 庇護 時間: 2025-3-21 23:47
The value of fresh waters, in many countries are related to spring lines and other sources of pure water. With improving sanitation, water was used for cleaning and removing domestic wastes and for irrigation in agriculture, and its power was harnessed for driving industrial machines. Within the last two centuries, improving作者: 招致 時間: 2025-3-22 01:16 作者: braggadocio 時間: 2025-3-22 06:07
Evaluation of conservation interest,ere is complete control of the catchment. This is rarely the case, except with small water bodies or sites within large national parks. Even then aerial pollution from afar, particularly from industry, can contribute to nutrient enrichment and acidification. Numerous attempts have been made, particu作者: 縮影 時間: 2025-3-22 09:03
Protection and management,is to decide where the boundaries should be (Lomolino, 1994). Theoretically these should follow the watersheds of catchments to ensure control of the quality of all incoming water but this is rarely possible in practice, especially for the larger water bodies. Efforts should be made to acquire as wi作者: 攀登 時間: 2025-3-22 16:44
Wetland management,erica and Europe. Hunting management has been mostly directed towards duck shooting but other waterfowl and mammals can be involved. Although the aims may be different, the techniques are often the same for hunting and nature conservation, and management is aimed at maintenance or improvement of hab作者: 攀登 時間: 2025-3-22 17:36
River management,users want the same thing: reliable supplies of clean water. Rivers — and their entire catchments — therefore need to be actively managed in such a way as to balance the needs of the various users and to ensure that both the quantity and quality of the resource are maintained. For example, an import作者: 粗魯?shù)娜?nbsp; 時間: 2025-3-23 01:05 作者: 本能 時間: 2025-3-23 01:51 作者: 果仁 時間: 2025-3-23 05:46 作者: Carcinogenesis 時間: 2025-3-23 13:42
Overview: In this book the authors have applied research knowledge to thesolution of practical problems facing wildlife conservation infreshwater habitats. Subjects covered include: evaluation of theconservation interest of sites; practical protection and managementof freshwater habitats; species conservation.978-94-010-6475-0978-94-011-5858-9作者: bile648 時間: 2025-3-23 15:19
Paul Withington II,Larry W. Fullerton The conflict between the demand for large amounts of pure water on the one hand and the disastrous pollution of many waters on the other is only now forcing the issue with politicians. Enormous areas of wetlands have been drained for agriculture and forestry and changed out of all recognition.作者: homocysteine 時間: 2025-3-23 21:35
Conservation Biologyhttp://image.papertrans.cn/c/image/235748.jpg作者: Bernstein-test 時間: 2025-3-23 23:39 作者: 背心 時間: 2025-3-24 05:27
Photoconductive Switching-Revisitedons, but the medium itself — fresh water — is of fundamental significance to human welfare everywhere. Fresh water is essential to humans for drinking water, transport, irrigation, energy and as a vehicle to eliminate waste material; the biota provide important food resources and utilizable material作者: staging 時間: 2025-3-24 07:12
Paul Withington II,Larry W. Fullerton in many countries are related to spring lines and other sources of pure water. With improving sanitation, water was used for cleaning and removing domestic wastes and for irrigation in agriculture, and its power was harnessed for driving industrial machines. Within the last two centuries, improving作者: 剝削 時間: 2025-3-24 13:59 作者: 我們的面粉 時間: 2025-3-24 18:17 作者: 先鋒派 時間: 2025-3-24 19:36 作者: intrude 時間: 2025-3-25 00:25
Electron Microscopy in Biology and Medicineerica and Europe. Hunting management has been mostly directed towards duck shooting but other waterfowl and mammals can be involved. Although the aims may be different, the techniques are often the same for hunting and nature conservation, and management is aimed at maintenance or improvement of hab作者: chapel 時間: 2025-3-25 03:45
Functions, Procedures and Packages,users want the same thing: reliable supplies of clean water. Rivers — and their entire catchments — therefore need to be actively managed in such a way as to balance the needs of the various users and to ensure that both the quantity and quality of the resource are maintained. For example, an import作者: 柔美流暢 時間: 2025-3-25 09:43 作者: Triglyceride 時間: 2025-3-25 13:03
Entities, Architectures, and Processes,Standing waters exhibit great variety, ranging from small shallow temporary pools through ponds and lakes to enormous waters that may be over 20 000 km. in area and 500 m in depth (Figures 1.3, 1.5, 7.1–7.6).作者: 胎兒 時間: 2025-3-25 18:11
Decision Theory and Real Decisions:The general conclusion from recent species conservation reviews is that protection given to most native aquatic species and their habitats in the majority of countries is inadequate in terms both of the establishment of appropriate reserves and of legislation.作者: 寬宏大量 時間: 2025-3-25 21:10 作者: miscreant 時間: 2025-3-26 00:44
Species conservation,The general conclusion from recent species conservation reviews is that protection given to most native aquatic species and their habitats in the majority of countries is inadequate in terms both of the establishment of appropriate reserves and of legislation.作者: LINES 時間: 2025-3-26 08:16 作者: carbohydrate 時間: 2025-3-26 12:04
Paul Withington II,Larry W. Fullerton become more and more important to humans. Further, extended leisure time in modern societies has increased pressure on recreational facilities for aquatic activities like angling, wildfowling, sailing, swimming, water skiing and power-boating.作者: palliative-care 時間: 2025-3-26 14:59 作者: cacophony 時間: 2025-3-26 20:34 作者: 拱形面包 時間: 2025-3-26 23:41 作者: 折磨 時間: 2025-3-27 01:11
The value of fresh waters, become more and more important to humans. Further, extended leisure time in modern societies has increased pressure on recreational facilities for aquatic activities like angling, wildfowling, sailing, swimming, water skiing and power-boating.作者: ASTER 時間: 2025-3-27 06:37 作者: 自由職業(yè)者 時間: 2025-3-27 12:38 作者: 小平面 時間: 2025-3-27 14:46
Functions, Procedures and Packages,e upper reaches of the river (and its tributaries), with less useful fishing, where the fish spawn and the nursery areas occur. Thus there is little incentive to the upper proprietors to manage the river for native salmonids.作者: 的闡明 時間: 2025-3-27 20:25 作者: DRAFT 時間: 2025-3-28 00:49
Vibrational Relaxation Studied with Light,de a band as possible of the surrounding land within the proposed reserve or at least to designate such an area as a buffer zone. Adverse threats to the site will have been taken into account during the selection process and, where these are of such a magnitude as to seriously threaten the viability of a site, the site will have been rejected.作者: Cholecystokinin 時間: 2025-3-28 05:18 作者: Benign 時間: 2025-3-28 06:19
Protection and management,de a band as possible of the surrounding land within the proposed reserve or at least to designate such an area as a buffer zone. Adverse threats to the site will have been taken into account during the selection process and, where these are of such a magnitude as to seriously threaten the viability of a site, the site will have been rejected.作者: 異端 時間: 2025-3-28 12:39
Wetland management,itat, most frequently by manipulation of the vegetation and water levels. Marshes and swamps are more productive and dynamic than peatlands so that most management has been directed towards the former.作者: 彎曲的人 時間: 2025-3-28 15:48 作者: Efflorescent 時間: 2025-3-28 19:28
Knowledge, Experience and Perceptions of HTA: A Quantitative Analysis,o be part of a group of, in the majority of cases, up to 10 components, predominantly from the medical field. People involved in HTA activities are mainly contributed to producing technical reports. Almost half of the respondents declared that, according to them, the objective of HTA is to support p
