懒惰人民 发表于 2025-3-23 11:47:31
The control of antibody production,ey are unaesthetic, and in recent years considerable progress has been made in the development of landscaping techniques to camouflage industrial sites. One of the ecologist’s particular roles in this connection has been to identify the factors which impede the growth of plants on various industrial智力高 发表于 2025-3-23 14:38:26
http://reply.papertrans.cn/31/3014/301344/301344_12.pngARM 发表于 2025-3-23 20:13:30
https://doi.org/10.1007/978-94-011-5664-6per boat movements on canals and navigable rivers. With road and rail systems the main biological problems relate to encroachment by vegetation and the possibility of collisions with animals. Aircraft are particularly vulnerable to in-flight collisions with birds and this ‘bird-strike’ problem is no宽宏大量 发表于 2025-3-24 00:23:58
https://doi.org/10.1007/978-981-19-5638-6hemical industries (Fig. 7.2, .). During the same period new urban growth centres and light-industrial estates (.) have also been established to redeploy the labour force released by the decline of the coal industry. Ports such as Swansea, Barry, Cardiff and Newport, originally established for coal-Invertebrate 发表于 2025-3-24 04:56:20
https://doi.org/10.1007/978-981-10-8417-1 and where industrial activities were subsequently brought to a halt by depletion of raw materials or by market changes. It is now widely recognised that ecological information is of considerable value in the rehabilitation and redevelopment of such areas.发展 发表于 2025-3-24 08:15:14
Umme Salma,Suprabuddha Kundu,Saikat Gantaittrip the capacity of service systems, particularly those concerned with water supply and waste disposal. The hazards of poor sanitation are thereby added to the traditional threats from tropical diseases. Many of the expanding towns also have food supply problems because the surrounding country hasineptitude 发表于 2025-3-24 11:30:30
http://reply.papertrans.cn/31/3014/301344/301344_17.pngCarminative 发表于 2025-3-24 17:24:38
A tropical development areabeen developed for the production of cash crops and yields little food for local consumption. The problem tends to be aggravated by the migration of farmers and their families into the towns and by inadequate arrangements for storing food and transporting it from rural areas.Blood-Clot 发表于 2025-3-24 20:09:16
X. K. Deng,T. Shantha Raju,K. John Morrow Jrbility. Thus, whilst a forest managed for timber production can accommodate a wide range of recreations within its boundaries, this is not the case with a lowland farm. Farmland, however, may form an essential background to those sight-seeing activities which involve the aesthetic appreciation of landscape.偶然 发表于 2025-3-25 00:42:02
David B. Haughey,Paula M. Jardieuntrusive noise levels from roads and airports which have been expanded to serve wider regional functions. These problems and others associated with transport systems are considered in detail later (p. 121).