Search Results - "RIHA, S.J"

A Test of Two Spatial Frameworks for Representing Spatial Patterns of Wetness in a Glacial Drift Watershed by Hofmeister, K.L., Nave, L.E., Riha, S.J., Schneider, R.L., Walter, M.T.

“…Core Ideas Soil moisture and water table position vary across ecosystems and parent materials. Ecosystem classifications and topographic wetness indices…”
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Stubborn facts: Still no evidence that the System of Rice Intensification out-yields best management practices (BMPs) beyond Madagascar by McDonald, A.J., Hobbs, P.R., Riha, S.J.

“…For more than a decade, the System of Rice Intensification (SRI) has been vigorously promoted as a method for substantially improving the yield performance of…”
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Water balance and rice growth responses to direct seeding, deep tillage, and landscape placement: Findings from a valley terrace in Nepal by McDonald, A.J., Riha, S.J., Duxbury, J.M., Steenhuis, T.S., Lauren, J.G.

“…For maximizing water retention and attaining high yields, transplanting into puddled soil (TPR) is often considered the optimal method of rice ( Orzya sativa…”
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Wheat responses to novel rice cultural practices and soil moisture conditions in the rice–wheat rotation of Nepal by McDonald, A.J., Riha, S.J., Duxbury, J.M., Lauren, J.G.

“…Degraded soil physical conditions from puddled rice ( Oryza sativa L.) have been associated with low wheat ( Triticum aestivum L.) yields in the rice–wheat…”
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Competition for water in a hedge-intercrop system by McIntyre, B.D., Riha, S.J., Ong, C.K.

“…Despite considerable interest in agroforestry systems, efforts to adopt these systems may be premature because it is unclear whether viable intercropping…”
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A farm-level analysis of economic and agronomic impacts of gradual climate warming by Kaiser, H.M. (Cornell University), Riha, S.J, Wilks, D.S, Rossiter, D.G, Sampath, R

“…The potential economic and agronomic impacts of gradual climate warming are examined at the farm level. Three models of the relevant climatic, agronomic, and…”
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Light interception and evapotranspiration in hedgerow agroforestry systems by McIntyre, B.D., Riha, S.J., Ong, C.K.

“…Quantifying water lost through evaporation and transpiration in a cropping system is an important tool in adapting a system for semi-arid conditions. During…”
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Simulation of elevated CO2 effects on daily net canopy carbon assimilation and crop yield by Wilks, D. S, Riha, S. J, Melkonian, J

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Water uptake by pearl millet in a semiarid environment by McIntyre, B.D., Riha, S.J., Flower, D.J.

“…Crops during drought may not utilize water at depth. This under-utilization of deep water may result from slow rates of root extension, low root density, or a…”
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Does the system of rice intensification outperform conventional best management? A synopsis of the empirical record by McDonald, A.J, Hobbs, P.R, Riha, S.J

“…The outperformance of the system of rice intensification (SRI) in the context of conventional best management is discussed. Sufficient empirical data now exist…”
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The impact of mound-building termites on surface soil properties in a secondary forest of Central Amazonia by Ackerman, Ilse L., Teixeira, Wenceslau G., Riha, Susan J., Lehmann, Johannes, Fernandes, Erick C.M.

“…Termites are important components of biologically mediated feedback to land-use change in the tropics. In Central Amazonia, termite mounds are prevalent in…”
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When big trees fall: Damage and carbon export by reduced impact logging in southern Amazonia by Feldpausch, Ted R., Jirka, Stefan, Passos, Carlos A.M., Jasper, Franklin, Riha, Susan J.

“…We examined carbon export in whole logs and carbon accumulation as coarse woody debris (CWD) produced from forest damage during all phases of the first and…”
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Prediction of long-term fertilizer nitrogen requirements of maize in the tropics using a nitrogen balance model by Osmond, D.L. (Cornell Univ., Ithaca, NY (USA). Dept. of Soil, Crop and Atmospheric Sciences), Lathwell, D.J, Riha, S.J

“…A simple N balance model was used to calculate fertilizer requirement for a target N uptake by maize. Nitrogen uptake from soil sources and target uptake of N…”
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Relationships between soil hydrology and forest structure and composition in the southern Brazilian Amazon by Jirka, Stefan, McDonald, Andrew J, Johnson, Mark S, Feldpausch, Ted R, Couto, Eduardo G, Riha, Susan J

“…Question: Is soil hydrology an important niche-based driver of biodiversity in tropical forests? More specifically, we asked whether seasonal dynamics in soil…”
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Does the system of rice intensification outperform conventional best management? by McDonald, A.J., Hobbs, P.R., Riha, S.J.

“…Irrespective of its influence on agricultural productivity, the System of Rice Intensification (SRI) has certainly increased discussion over optimal rice…”
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Soil physical responses to novel rice cultural practices in the rice–wheat system: Comparative evidence from a swelling soil in Nepal by McDonald, A.J., Riha, S.J., Duxbury, J.M., Steenhuis, T.S., Lauren, J.G.

“…Soil puddling in advance of rice ( Oryza sativa L.) transplanting disperses surface aggregates and generates compaction at depth. As a management scheme for…”
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Biomass, harvestable area, and forest structure estimated from commercial timber inventories and remotely sensed imagery in southern Amazonia by Feldpausch, Ted R., McDonald, Andrew J., Passos, Carlos A.M., Lehmann, Johannes, Riha, Susan J.

“…The purpose of this study was to determine if spatially-explicit commercial timber inventories (CTI) could be used in conjunction with satellite imagery to…”
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Does soil nitrogen affect early competitive traits of annual weeds in comparison with maize by BERGER, A, MCDONALD, A.J, RIHA, S.J

“…Soil nitrogen (N) is considered an important driver of crop-weed interactions, yet the mechanisms involved have been only partially explored, especially with…”
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Comparisons of measured stream flow with drainage and runoff simulated by a soil-vegetation-atmosphere transport model parameterized with GLOBE student data by Melkonian, Jeffrey, Riha, Susan J., Robin, Jessica, Levine, Elissa

“…Predicting runoff and drainage from landscapes and correlating these with stream flow can be a powerful watershed management tool. We examined the feasibility…”
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Mining the record: historical evidence for climatic influences on maize - - Abutilon theophrasti competiion by McDonald, A.J, Riha, S.J, Mohler, C.L

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