User profiles for Kenneth M. Wacha
Kenneth M. WachaUSDA-ARS Verified email at usda.gov Cited by 468 |
From soilscapes to landscapes: A landscape‐oriented approach to simulate soil organic carbon dynamics in intensively managed landscapes
AN Papanicolaou, KM Wacha… - Journal of …, 2015 - Wiley Online Library
Most available biogeochemical models focus within a soil profile and cannot adequately
resolve contributions of the lighter size fractions of organic rich soils for enrichment ratio (ER) …
resolve contributions of the lighter size fractions of organic rich soils for enrichment ratio (ER) …
Tillage-induced surface soil roughness controls the chemistry and physics of eroded particles at early erosion stage
Intensive row crop agriculture on loess mantled hillslopes in the upper Midwest, USA,
accelerates soil erosion and the loss of organic matter by increasing soil aggregate breakdown, …
accelerates soil erosion and the loss of organic matter by increasing soil aggregate breakdown, …
Cropping pattern changes diminish agroecosystem services in North and South Dakota, USA
In the past several decades, North and South Dakota have experienced increased agricultural
expansion and crop rotation simplification, namely an increase in corn (Zea mays L.)– …
expansion and crop rotation simplification, namely an increase in corn (Zea mays L.)– …
Control of tillage disturbance on the chemistry and proportion of raindrop-liberated particles from soil aggregates
In most agricultural systems, the raindrop-induced breakdown of soil aggregates is the
initial process of surface soil erosion and redistribution of soil organic matter. The …
initial process of surface soil erosion and redistribution of soil organic matter. The …
[HTML][HTML] The role of hydraulic connectivity and management on soil aggregate size and stability in the Clear Creek Watershed, Iowa
The role of tillage practices on soil aggregate properties has been mainly addressed at the
pedon scale (ie, soilscape scale) by treating landscape elements as disconnected. However, …
pedon scale (ie, soilscape scale) by treating landscape elements as disconnected. However, …
Flow resistance interactions on hillslopes with heterogeneous attributes: Effects on runoff hydrograph characteristics
…, JR Frankenberger, KM Wacha - Water resources …, 2018 - Wiley Online Library
An improved modeling framework for capturing the effects of space and time‐variant resistance
to overland flow is developed for intensively managed landscapes. The framework builds …
to overland flow is developed for intensively managed landscapes. The framework builds …
Quantifying the changes of soil surface microroughness due to rainfall impact on a smooth surface
This study examines the rainfall-induced change in soil microroughness of a bare smooth
soil surface in an agricultural field. The majority of soil microroughness studies have focused …
soil surface in an agricultural field. The majority of soil microroughness studies have focused …
Impact of management practices on carbon and water fluxes in corn–soybean rotations
… Aspirational corn GPP was lower than conventional with 1285 and 1405 g C m −2 , and
no difference in soybean with 750 and 742 g C m −2 . Linear regression (p < 0.05) showed …
no difference in soybean with 750 and 742 g C m −2 . Linear regression (p < 0.05) showed …
The impact of tillage row orientation on physical and chemical sediment enrichment
KM Wacha, ANT Papanicolaou… - Agrosystems …, 2020 - Wiley Online Library
This study aimed to better understand how tillage row orientation with respect to dominant
flow‐pathway along hillslope impacts runoff and the transport of different sediment size …
flow‐pathway along hillslope impacts runoff and the transport of different sediment size …
A new dynamic wetness index (DWI) predicts soil moisture persistence and correlates with key indicators of surface soil geochemistry
Commonly, the topographic influence on soil hydrology is calculated as a Topographic
Wetness Index (TWI), which often correlates with surface soil properties, such as carbon and …
Wetness Index (TWI), which often correlates with surface soil properties, such as carbon and …