BIODIVERSITY AND LITTER DECOMPOSITION IN
... organic matter turnover, particularly the large groups of bacteria and fungi. Recycling of carbon and nutrients during decomposition is a fundamentally important ecosystem process (Swift et al. 1979, Cadish & Giller 1997) that has major control over the carbon cycle, nutrient availability, and, cons ...
... organic matter turnover, particularly the large groups of bacteria and fungi. Recycling of carbon and nutrients during decomposition is a fundamentally important ecosystem process (Swift et al. 1979, Cadish & Giller 1997) that has major control over the carbon cycle, nutrient availability, and, cons ...
Phosphorus retention in forest soils and the functioning of
... To assess the usefulness of buffer zones used in forestry in removing P from the discharge by chemical sorption in soil, and to estimate the risk of P leaching after forestry operations, more data is needed on soil P retention properties. P retention properties of soils were studied at clear-cut are ...
... To assess the usefulness of buffer zones used in forestry in removing P from the discharge by chemical sorption in soil, and to estimate the risk of P leaching after forestry operations, more data is needed on soil P retention properties. P retention properties of soils were studied at clear-cut are ...
The influence of soil type, congeneric cues, and
... Merchant 1980). In marshes and swamps, burrow construction by adults and juveniles generally follows a predictable behavioral pattern with a preference for and superior ability to burrow in fine-grained over coarse-grained soils (Grow 1981, 1982). However, whether these patterns hold for populations ...
... Merchant 1980). In marshes and swamps, burrow construction by adults and juveniles generally follows a predictable behavioral pattern with a preference for and superior ability to burrow in fine-grained over coarse-grained soils (Grow 1981, 1982). However, whether these patterns hold for populations ...
PDF
... Seed dormancy prevents germination during conditions that would otherwise be ideal for germination. Most weed seeds are dormant at the time of maturity which is referred to as primary dormancy. However, seeds can cycle in and out of a dormant state because of environmental conditions. This process i ...
... Seed dormancy prevents germination during conditions that would otherwise be ideal for germination. Most weed seeds are dormant at the time of maturity which is referred to as primary dormancy. However, seeds can cycle in and out of a dormant state because of environmental conditions. This process i ...
Conference for Soil Classification Lincoln, NE, USA June 12, 2012
... The 2nd edition 2006 (update 2007) of the international soil classification system WRB (World Reference Base for Soil Resources) is focused on pedon classification. WRB has 2 hierarchical levels with 32 Reference Soil Groups (RSG) at the upper level. At the lower level, ...
... The 2nd edition 2006 (update 2007) of the international soil classification system WRB (World Reference Base for Soil Resources) is focused on pedon classification. WRB has 2 hierarchical levels with 32 Reference Soil Groups (RSG) at the upper level. At the lower level, ...
Causes of Salinization - Keele Research Repository
... Recharge management: • Plant crops that use the available soil moisture. Shallow rooted crops may not extract excess subsoil moisture that can lead to salinity. • Remove excess water from recharge areas of seeps by using actively growing, deep-rooted plants. Perennial plants and forages, especially ...
... Recharge management: • Plant crops that use the available soil moisture. Shallow rooted crops may not extract excess subsoil moisture that can lead to salinity. • Remove excess water from recharge areas of seeps by using actively growing, deep-rooted plants. Perennial plants and forages, especially ...
Fertilizer Primer - College of Agricultural and Life Sciences
... the yield and quality of crops when applied to nutrient-deficient soils. Other materials such as manure, sewage sludge, and some industrial wastes also can satisfy the nutrient needs of crops. In many situations, factors such as accessibility and transportation costs result in commercially manufactu ...
... the yield and quality of crops when applied to nutrient-deficient soils. Other materials such as manure, sewage sludge, and some industrial wastes also can satisfy the nutrient needs of crops. In many situations, factors such as accessibility and transportation costs result in commercially manufactu ...
Soil Zoology
... tool for quantifying specific elemental flows under controlled conditions. For example, improved protocols for generating earthworms with known isotopic tracer distribution in different tissues may aid studies of the fate of worm-derived C and N in the drilosphere (Dyckmans et al. 2005). A major adv ...
... tool for quantifying specific elemental flows under controlled conditions. For example, improved protocols for generating earthworms with known isotopic tracer distribution in different tissues may aid studies of the fate of worm-derived C and N in the drilosphere (Dyckmans et al. 2005). A major adv ...
Biodiversity and Ecosystem Services in Agroecosystems
... and Biodiversity and The Common International Classification of Ecosystem Services). The Millennium Ecosystem Assessment provides a globally recognized classification that emphasizes relationships between ecosystem services and human wellbeing and describes four types of services (The authors draw on ...
... and Biodiversity and The Common International Classification of Ecosystem Services). The Millennium Ecosystem Assessment provides a globally recognized classification that emphasizes relationships between ecosystem services and human wellbeing and describes four types of services (The authors draw on ...
AEN-124: Streambank Erosion
... livestock and wildlife (Figure 6). Overhanging banks can collapse from the weight of a person or animal. Streambank erosion also negatively impacts water quality largely by increasing the amount of suspended sediment in the stream water. When suspended sediment levels in streams are high, aquatic li ...
... livestock and wildlife (Figure 6). Overhanging banks can collapse from the weight of a person or animal. Streambank erosion also negatively impacts water quality largely by increasing the amount of suspended sediment in the stream water. When suspended sediment levels in streams are high, aquatic li ...
1.1 Scope of the TanCert Organic Standard
... parallel production. Synthetic Manufactured by chemical and industrial processes. May include products not found in nature, or simulation of products from natural sources but not extracted from natural raw materials. ...
... parallel production. Synthetic Manufactured by chemical and industrial processes. May include products not found in nature, or simulation of products from natural sources but not extracted from natural raw materials. ...
Plant Diversity Surpasses Plant Functional Groups and Plant
... legumes enhance the fertility of soils by N2 fixation and the input of high quality (nitrogen-rich) litter materials [24,26,30–32]. Positive impacts of plant diversity thus often have been ascribed to the increased probability of including legume species in more diverse plant communities [24,26,33], ...
... legumes enhance the fertility of soils by N2 fixation and the input of high quality (nitrogen-rich) litter materials [24,26,30–32]. Positive impacts of plant diversity thus often have been ascribed to the increased probability of including legume species in more diverse plant communities [24,26,33], ...
Similar biotic factors affect early establishment and abundance of an
... exotics. This discrepancy among studies suggests that more experimental studies, coupled with observational studies across landscapes, are necessary to understand whether and how resource availability and community structure limits invasions at various stages of invasion (i.e., establishment and pop ...
... exotics. This discrepancy among studies suggests that more experimental studies, coupled with observational studies across landscapes, are necessary to understand whether and how resource availability and community structure limits invasions at various stages of invasion (i.e., establishment and pop ...
Similar biotic factors affect early establishment and abundance of an
... exotics. This discrepancy among studies suggests that more experimental studies, coupled with observational studies across landscapes, are necessary to understand whether and how resource availability and community structure limits invasions at various stages of invasion (i.e., establishment and pop ...
... exotics. This discrepancy among studies suggests that more experimental studies, coupled with observational studies across landscapes, are necessary to understand whether and how resource availability and community structure limits invasions at various stages of invasion (i.e., establishment and pop ...
environmental filtering of enzymatic activities
... der Heijden et al. 2015). Their morpho-anatomy is variable, especially in the extension of the hyphal network surrounding root tips (=extramatrical mycelium; Agerer 2001). As other fungi, ectomycorrhizal (ECM) fungi release extracellular enzymes to break down macromolecules—for example, nucleic acid ...
... der Heijden et al. 2015). Their morpho-anatomy is variable, especially in the extension of the hyphal network surrounding root tips (=extramatrical mycelium; Agerer 2001). As other fungi, ectomycorrhizal (ECM) fungi release extracellular enzymes to break down macromolecules—for example, nucleic acid ...
Using turnips to reduce soil K loading on the effluent block
... 2004). Turnips potentially produce larger amounts of dry matter with a higher metabolisable energy and K content (Table 1) than conserved pasture. For the same growing period, turnips at a yield of 10 t DM/ha, extract 10% less N and P but 40% more K and S than a crop of maize yielding 18 t DM/ha (Ta ...
... 2004). Turnips potentially produce larger amounts of dry matter with a higher metabolisable energy and K content (Table 1) than conserved pasture. For the same growing period, turnips at a yield of 10 t DM/ha, extract 10% less N and P but 40% more K and S than a crop of maize yielding 18 t DM/ha (Ta ...
Analyzing spatial patterns linked to the ecology of herbivores and
... reduce undesirable environmental impacts. Although the understanding of subterranean ecology is rudimentary compared to the perspective aboveground, technologies today vastly reduce traditional obstacles to studying cryptic communities. Here we emphasize advantages to integrating as much as possible ...
... reduce undesirable environmental impacts. Although the understanding of subterranean ecology is rudimentary compared to the perspective aboveground, technologies today vastly reduce traditional obstacles to studying cryptic communities. Here we emphasize advantages to integrating as much as possible ...
here - Westshores Nurseries
... Perennial. Exceptionally evenly double creamy-white daisies over dark foliage. Flowers Jun-Aug. Good cut flower. Height 80cm ...
... Perennial. Exceptionally evenly double creamy-white daisies over dark foliage. Flowers Jun-Aug. Good cut flower. Height 80cm ...
Read the e-book - KIS - University of Saskatchewan
... problem facing Prairie agriculture. What emerged was a focus on organic matter (and the role that it played in water and nutrient availability), rather than a focus on moisture management. On the technological front, Roundup was introduced (it was first marketed to farmers in 1973). The introduction ...
... problem facing Prairie agriculture. What emerged was a focus on organic matter (and the role that it played in water and nutrient availability), rather than a focus on moisture management. On the technological front, Roundup was introduced (it was first marketed to farmers in 1973). The introduction ...
Plant functional traits and soil carbon sequestration in contrasting
... physical and chemical composition from those plant species that mainly invest in growth potential. As a consequence, the amount and composition of carbon forms that plants return to soil, and their subsequent fate in soil, can be related to plant growth rate (Chapin 2003; Lavorel et al. 2007). Plant ...
... physical and chemical composition from those plant species that mainly invest in growth potential. As a consequence, the amount and composition of carbon forms that plants return to soil, and their subsequent fate in soil, can be related to plant growth rate (Chapin 2003; Lavorel et al. 2007). Plant ...
Plant functional traits and soil carbon sequestration in contrasting
... physical and chemical composition from those plant species that mainly invest in growth potential. As a consequence, the amount and composition of carbon forms that plants return to soil, and their subsequent fate in soil, can be related to plant growth rate (Chapin 2003; Lavorel et al. 2007). Plant ...
... physical and chemical composition from those plant species that mainly invest in growth potential. As a consequence, the amount and composition of carbon forms that plants return to soil, and their subsequent fate in soil, can be related to plant growth rate (Chapin 2003; Lavorel et al. 2007). Plant ...
The role of OP insecticides in long-term declines of collembola and
... (5) Manipulation of the connectivity between a chlorpyrifos-sprayed wheat crop, unsprayed crop edge and field boundary (hedgerow) using exclusion barriers provided evidence that the hedgerow may have had a stronger influence than the unsprayed crop edge on the abundance and diversity of arthropods i ...
... (5) Manipulation of the connectivity between a chlorpyrifos-sprayed wheat crop, unsprayed crop edge and field boundary (hedgerow) using exclusion barriers provided evidence that the hedgerow may have had a stronger influence than the unsprayed crop edge on the abundance and diversity of arthropods i ...
Lateral load capacity estimation of large diameter - E
... values to be adopted which have been discussed later. 4.4 Group Effect & Repeated Loading : It has been often emphasized that for vertical capacity of a pile group, the group action plays a major part. The authors while working on the lateral load capacity of a pile foundation system based on the ca ...
... values to be adopted which have been discussed later. 4.4 Group Effect & Repeated Loading : It has been often emphasized that for vertical capacity of a pile group, the group action plays a major part. The authors while working on the lateral load capacity of a pile foundation system based on the ca ...
radiocesium in plants of forest ecosystems
... Radioactivity patterns in soils might be observed on different geographic scales: a) on a regional scale, b) on a local scale, c) at community level, d) within a given community. On the regional and local scales differences in rainfall are the most important factor creating radioactivity deposition ...
... Radioactivity patterns in soils might be observed on different geographic scales: a) on a regional scale, b) on a local scale, c) at community level, d) within a given community. On the regional and local scales differences in rainfall are the most important factor creating radioactivity deposition ...
Crop rotation
Crop rotation is the practice of growing a series of dissimilar/different types of crops in the same area in sequenced seasons.It also helps in reducing soil erosion and increases soil fertility and crop yield. Crop rotation gives various nutrients to the soil. A traditional element of crop rotation is the replenishment of nitrogen through the use of green manure in sequence with cereals and other crops. Crop rotation also mitigates the build-up of pathogens and pests that often occurs when one species is continuously cropped, and can also improve soil structure and fertility by alternating deep-rooted and shallow-rooted plants.Crop rotation is one component of polyculture.