树木中
发表于 2025-3-24 04:25:35
Clustering and Latent Factor Models,nd chemical properties. As such features as structure, particle size, pore volume, organic matter content, cation exchange capacity, pH and mineral content are used. Most of these features within each soil type may change with soil water table and land use.
有效
发表于 2025-3-24 06:38:24
https://doi.org/10.1007/978-1-349-04317-0itions is presented..Five requisites formulated for the water quality indicator are discussed: (1) its relation with water quality goals, (2) nature and amount of information it provides, (3) if it could be standardized, (4) if it could be manipulated and (5) its measurability.
Nmda-Receptor
发表于 2025-3-24 13:58:57
An Introduction to Biological Controltion. It is concluded that, due to lack of data, such an approach is not possible at this moment. However, it might be possible to identify those soil parameters which should be taken into consideration when evaluating human activities.
细查
发表于 2025-3-24 16:51:38
Problems in Characterizing the Ecological Quality of Soil in Relation to Human Activitiestion. It is concluded that, due to lack of data, such an approach is not possible at this moment. However, it might be possible to identify those soil parameters which should be taken into consideration when evaluating human activities.
alleviate
发表于 2025-3-24 19:01:48
A Systems Approach to Agriculture,The present volume is based on papers presented at a Symposium held on 14 and 15 October 1982, in Utrecht, The Netherlands. This Symposium, organized by the Dutch Ecological Society, was devoted to ‘Ecological Indicators for the Assessment of the Quality of Air, Water, Soil, and Ecosystems’.
RADE
发表于 2025-3-24 23:15:49
EditorialThe present volume is based on papers presented at a Symposium held on 14 and 15 October 1982, in Utrecht, The Netherlands. This Symposium, organized by the Dutch Ecological Society, was devoted to ‘Ecological Indicators for the Assessment of the Quality of Air, Water, Soil, and Ecosystems’.
grovel
发表于 2025-3-25 07:12:35
Ecotoxicology and Environmental Qualitygment of possible noxious effects of chemicals on ecosystems. It is a multidisciplinary field of science which comprises toxicology, environmental chemistry and ecology as outlined in the triangular diagram below.
FRAUD
发表于 2025-3-25 07:40:35
Bio-Indicators and the Quality of the Wadden Seaity of the Wadden Sea is discussed using a number of indicators for pollution effects; the Wadden Sea is now an unsuitable environment for a number of marine mammals, and, to a lesser extent, for some bird species. It cannot be shown whether or not this pollution has any effect on r-selective species.
MUT
发表于 2025-3-25 13:49:24
https://doi.org/10.1007/978-94-009-6322-1Grassland; Meadow; Water pollution; air quality; ecotoxicology; environment; environmental change; environm
饰带
发表于 2025-3-25 16:27:28
978-94-009-6324-5D. Reidel Publishing Company, Dordrecht, Holland 1983