The Experts below are selected from a list of 324 Experts worldwide ranked by ideXlab platform
Loren M. Smith - One of the best experts on this subject based on the ideXlab platform.
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invertebrate response to moist Soil Management of playa wetlands
Ecological Applications, 2000Co-Authors: James T Anderson, Loren M. SmithAbstract:Moist-Soil Management is a wetland Management technique commonly used to increase seed production for migratory birds. However, the responses of invertebrates to moist-Soil Management have seldom been investigated even though their availability may be as important as seeds to foraging waterbirds. We studied the effects of moist-Soil Management and initial fall flooding date (September vs. November) on invertebrate density, biomass, and diversity in 12 playa wetlands on the Southern High Plains, USA, during the winters of 1994–1995 and 1995–1996. Invertebrates were sampled using a combination of benthic core, epiphytic, and water-column samplers. Total invertebrate density and biomass were higher in playas that were moist-Soil managed and that had longer hydroperiods (four rather than two months) than in playas that were not managed or that had shorter hydroperiods. Most invertebrate taxa (75%) were more abundant in moist-Soil managed wetlands than in unmanaged wetlands. Invertebrate familial richness and ...
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INVERTEBRATE RESPONSE TO MOIST‐Soil Management OF PLAYA WETLANDS
Ecological Applications, 2000Co-Authors: James T Anderson, Loren M. SmithAbstract:Moist-Soil Management is a wetland Management technique commonly used to increase seed production for migratory birds. However, the responses of invertebrates to moist-Soil Management have seldom been investigated even though their availability may be as important as seeds to foraging waterbirds. We studied the effects of moist-Soil Management and initial fall flooding date (September vs. November) on invertebrate density, biomass, and diversity in 12 playa wetlands on the Southern High Plains, USA, during the winters of 1994–1995 and 1995–1996. Invertebrates were sampled using a combination of benthic core, epiphytic, and water-column samplers. Total invertebrate density and biomass were higher in playas that were moist-Soil managed and that had longer hydroperiods (four rather than two months) than in playas that were not managed or that had shorter hydroperiods. Most invertebrate taxa (75%) were more abundant in moist-Soil managed wetlands than in unmanaged wetlands. Invertebrate familial richness and ...
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Effects of moist-Soil Management on playa wetland Soils
Wetlands, 1996Co-Authors: David A. Haukos, Loren M. SmithAbstract:We evaluated effects of moist-Soil Management on Soils of eight playa wetlands for 2 years. Moist-Soil Management involves timed drawdown and irrigation of wetlands to promote germination, growth, and seed production of mudflat annuals for use by wintering waterfowl. Moist-Soil Management reduced Soil resistance for germination (P=0.02), raised pH closer to neutrality (P=0.002), but had no effect on Soil moisture in the top 4 cm of Soil (P=0.16; influence on Soil moisture in the root zone is unknown) or on salinity measured as conductivity (P=0.51). Moist-Soil Management did not affect nitrogen and phosphorus levels in playa Soils over 2 seasons (P=0.61). As a percentage of available nutrients, more Soil nitrogen was lost during the wetter year compared to the dryer year (P=0.02)—a trend that was reversed for Soil phosphorus (P=0.004). More nitrogen was lost in the wetter year (P=0.02); whereas, more phosphorus was lost in the dryer year (P=0.004). This indicates potential changes in limiting nutrients depending upon local precipitation events. Apparently, nutrient cycling is rapid in playas, producing large amounts of biomass despite having lower Soil nutrient pools compared to other inland freshwater wetlands. Moist-Soil Management is a sustainable and compatible practice for playa wetlands because it enhances naturally occurring events.
James T Anderson - One of the best experts on this subject based on the ideXlab platform.
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invertebrate response to moist Soil Management of playa wetlands
Ecological Applications, 2000Co-Authors: James T Anderson, Loren M. SmithAbstract:Moist-Soil Management is a wetland Management technique commonly used to increase seed production for migratory birds. However, the responses of invertebrates to moist-Soil Management have seldom been investigated even though their availability may be as important as seeds to foraging waterbirds. We studied the effects of moist-Soil Management and initial fall flooding date (September vs. November) on invertebrate density, biomass, and diversity in 12 playa wetlands on the Southern High Plains, USA, during the winters of 1994–1995 and 1995–1996. Invertebrates were sampled using a combination of benthic core, epiphytic, and water-column samplers. Total invertebrate density and biomass were higher in playas that were moist-Soil managed and that had longer hydroperiods (four rather than two months) than in playas that were not managed or that had shorter hydroperiods. Most invertebrate taxa (75%) were more abundant in moist-Soil managed wetlands than in unmanaged wetlands. Invertebrate familial richness and ...
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INVERTEBRATE RESPONSE TO MOIST‐Soil Management OF PLAYA WETLANDS
Ecological Applications, 2000Co-Authors: James T Anderson, Loren M. SmithAbstract:Moist-Soil Management is a wetland Management technique commonly used to increase seed production for migratory birds. However, the responses of invertebrates to moist-Soil Management have seldom been investigated even though their availability may be as important as seeds to foraging waterbirds. We studied the effects of moist-Soil Management and initial fall flooding date (September vs. November) on invertebrate density, biomass, and diversity in 12 playa wetlands on the Southern High Plains, USA, during the winters of 1994–1995 and 1995–1996. Invertebrates were sampled using a combination of benthic core, epiphytic, and water-column samplers. Total invertebrate density and biomass were higher in playas that were moist-Soil managed and that had longer hydroperiods (four rather than two months) than in playas that were not managed or that had shorter hydroperiods. Most invertebrate taxa (75%) were more abundant in moist-Soil managed wetlands than in unmanaged wetlands. Invertebrate familial richness and ...
Wan Noordin Daud - One of the best experts on this subject based on the ideXlab platform.
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Rubber Plantation: Soil Management & Nutritional Requirement
2013Co-Authors: Wan Noordin DaudAbstract:Rubber has been grown commercially in Malaysia since 1903, when the first rubber estate was established in Melaka. Since then, several usage of rubber have been discovered from time to time. Suitable planting area has decreased and to overcome this problem planting of rubber gets into marginal and problem Soils. This books describing Soil genesis, Management and nutritional requirement of rubber on these marginal Soils are scarce. This book is written in 10 chapters, covering various aspects of Soil Management and nutritional requirement with latest information on current technology available in the rubber industry. These include Soil series identification, and fertilizer recommendations for sustainable rubber plantation.
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rubber plantation Soil Management nutritional requirement
2013Co-Authors: Wan Noordin DaudAbstract:Rubber has been grown commercially in Malaysia since 1903, when the first rubber estate was established in Melaka. Since then, several usage of rubber have been discovered from time to time. Suitable planting area has decreased and to overcome this problem planting of rubber gets into marginal and problem Soils. This books describing Soil genesis, Management and nutritional requirement of rubber on these marginal Soils are scarce. This book is written in 10 chapters, covering various aspects of Soil Management and nutritional requirement with latest information on current technology available in the rubber industry. These include Soil series identification, and fertilizer recommendations for sustainable rubber plantation.
Thomas Keller - One of the best experts on this subject based on the ideXlab platform.
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The influence of Soil Management on Soil health: An on-farm study in southern Sweden
Geoderma, 2020Co-Authors: Hanna Williams, Tino Colombi, Thomas KellerAbstract:Abstract Soil health reflects the capacity of a Soil to provide ecosystem services. A major challenge of Soil Management is to support agricultural productivity without jeopardizing other ecosystem services. However, there is relatively little knowledge on how Soil Management affects Soil health in real farm settings. This study investigated the impact of Soil Management on Soil health indicators of 20 farm fields in southern Sweden. In addition, we collected samples from an adjacent unmanaged Soil at each field, representing the potential Soil health at each site. Soil health was quantified by measuring Soil physical and biological indicators: wet aggregate stability, autoclaved-citrate extractable Soil protein, organic matter, active carbon and heterotrophic Soil respiration. Soil texture and pH were also measured. A Soil Management index was calculated for each field based on crop diversity, Soil tillage, and application of organic amendments. Thereby, a high Management index indicated a higher crop diversity, fewer tillage operations, and a higher number of organic amendments. Fields with a higher Soil Management index showed better Soil health, with higher levels of aggregate stability, protein, active carbon, respiration, and organic matter. We found that Soil Management significantly affected all Soil health indicators. Soil health of farm fields was generally poorer in comparison with unmanaged Soil. Notably, the ratio of Soil health of farm fields to unmanaged Soils significantly increased with increasing Soil Management index. Our study shows that Soil Management is key for Soil health, and that improved Soil Management comprising crop diversity, omission of tillage, and application of organic amendments promotes Soil health.
Hanna Williams - One of the best experts on this subject based on the ideXlab platform.
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The influence of Soil Management on Soil health: An on-farm study in southern Sweden
Geoderma, 2020Co-Authors: Hanna Williams, Tino Colombi, Thomas KellerAbstract:Abstract Soil health reflects the capacity of a Soil to provide ecosystem services. A major challenge of Soil Management is to support agricultural productivity without jeopardizing other ecosystem services. However, there is relatively little knowledge on how Soil Management affects Soil health in real farm settings. This study investigated the impact of Soil Management on Soil health indicators of 20 farm fields in southern Sweden. In addition, we collected samples from an adjacent unmanaged Soil at each field, representing the potential Soil health at each site. Soil health was quantified by measuring Soil physical and biological indicators: wet aggregate stability, autoclaved-citrate extractable Soil protein, organic matter, active carbon and heterotrophic Soil respiration. Soil texture and pH were also measured. A Soil Management index was calculated for each field based on crop diversity, Soil tillage, and application of organic amendments. Thereby, a high Management index indicated a higher crop diversity, fewer tillage operations, and a higher number of organic amendments. Fields with a higher Soil Management index showed better Soil health, with higher levels of aggregate stability, protein, active carbon, respiration, and organic matter. We found that Soil Management significantly affected all Soil health indicators. Soil health of farm fields was generally poorer in comparison with unmanaged Soil. Notably, the ratio of Soil health of farm fields to unmanaged Soils significantly increased with increasing Soil Management index. Our study shows that Soil Management is key for Soil health, and that improved Soil Management comprising crop diversity, omission of tillage, and application of organic amendments promotes Soil health.
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The influence of Soil Management on Soil health
2018Co-Authors: Hanna WilliamsAbstract:The capacity of a Soil to provide ecosystem services without negative impacts on the environment is defined as Soil health. Healthy Soils are a fundamental resource for agricultural production and our ability to feed a growing global population. We must therefore increase our understanding of how Soil health is affected by Soil Management. This study investigated Soil health on 20 farms in the south of Sweden, using samples of topSoil from farm fields and from unmanaged Soil adjacent to the sampled field at each site. Soil health was assessed using the following physical, chemical, and biological indicators: wet aggregate stability, Soil protein content, active carbon, Soil respiration, and Soil organic matter. We designed a Soil Management index based on crop diversity, avoidance of mechanical Soil disturbance, and application of organic amendments, and evaluated its effect on individual Soil health indicators and overall relative Soil health. The results of this study showed that Soil health was poorer in agricultural fields than unmanaged Soils. Furthermore, a high Soil Management index resulted in higher values for individual Soil health indicators. However, Soil health indicators differed in how sensitive they were to Soil Management. We found that wet aggregate stability and Soil protein content had a high sensitivity to Soil Management. Active carbon, Soil respiration and Soil organic matter content were less sensitive to Soil Management and more dependent on Soil texture. Lastly, the results show that a high Soil Management index resulted in an improved overall Soil health relative to the potential Soil health represented by the unmanaged Soil. Our results show that it is possible to promote Soil health through high crop diversity, avoidance of mechanical Soil disturbance, and application of organic amendments
