Intensively Managed Landscapes

SciVee ◽  
2009 ◽  
Keyword(s):  
Intensively Managed ◽  
Managed Landscapes

Critical transition in critical zone of intensively managed landscapes

Anthropocene ◽  
2018 ◽  
Vol 22 ◽  
pp. 10-19 ◽  
Author(s):  
Praveen Kumar ◽  
Phong V.V. Le ◽  
A.N. Thanos Papanicolaou ◽  
Bruce L. Rhoads ◽  
Alison M. Anders ◽  
...  
Keyword(s):  
Critical Zone ◽  
Critical Transition ◽  
Intensively Managed ◽  
Managed Landscapes

scholarly journals Impacts of Landscape Evolution on Heterotrophic Carbon Loss in Intensively Managed Landscapes

2021 ◽  
Vol 3 ◽  
Author(s):  
Qina Yan ◽  
Praveen Kumar
Keyword(s):  
Soil Erosion ◽  
Spatial Variability ◽  
Net Primary Productivity ◽  
Agricultural Field ◽  
Carbon Loss ◽  
Mechanical Mixing ◽  
Microbial Decomposition ◽  
Soil Transport ◽  
Intensively Managed ◽  
Managed Landscapes

Soil respiration that releases CO2 into the atmosphere roughly balances the net primary productivity and varies widely in space and time. However, predicting its spatial variability, particularly in intensively managed landscapes, is challenging due to a lack of understanding of the roles of soil organic carbon (SOC) redistribution resulting from accelerated soil erosion. Here we simulate the heterotrophic carbon loss (HCL)—defined as microbial decomposition of SOC—with soil transport, SOC surface redistribution, and biogeochemical transformation in an agricultural field. The results show that accelerated soil erosion extends the spatial variation of the HCL, and the mechanical-mixing due to tillage further accentuates the contrast. The peak values of HCL occur in areas where soil transport rates are relatively small. Moreover, HCL has a strong correlation with the SOC redistribution rate rather than the soil transport rate. This work characterizes the roles of soil and SOC transport in restructuring the spatial variability of HCL at high spatio-temporal resolution.

scholarly journals Landscape Performance of Ebony Crepe Myrtle Cultivars in Low-input Landscapes in North-central Texas

2021 ◽  
pp. 1-7
Author(s):  
Derald Harp ◽  
Kevin Chretien ◽  
Mariah Brown ◽  
Curtis Jones ◽  
Jose Lopez-Serrano
Keyword(s):  
Sandy Loam ◽  
North Central ◽  
Low Input ◽  
Landscape Performance ◽  
North Central Texas ◽  
Central Texas ◽  
Overall Performance ◽  
Intensively Managed ◽  
Study Sites ◽  
Managed Landscapes

The Ebony series of crepe myrtle (Lagerstroemia indica) cultivars includes several (Ebony Embers, Ebony Fire, Ebony Flame, Ebony Glow, and Ebony and Ivory), marketed today under the Black Diamond® brand. These are relatively new crepe myrtle cultivars unique for their dark foliage, but with little information concerning their performance in north-central Texas, especially in low-input landscapes. The study was conducted from 2014 to 2017 at three locations in north-central Texas with three soil types, an acidic fine sandy loam, a neutral pH silt loam, and an alkaline heavy clay. Although soils and environmental conditions caused variations between sites, overall performance among cultivars was consistent across all study sites, with Centennial Spirit having better landscape performance than any of the Ebony cultivars tested. ‘Ebony and Ivory’ and ‘Ebony Blush’ had the overall lowest landscape performance. Ebony cultivars grew more slowly, had fewer blooms, and were more susceptible to powdery mildew than Centennial Spirit. While the trees may perform better in more intensively managed landscapes, the Ebony cultivars did not perform as well as Centennial Spirit in low-input landscapes in north-central Texas.

scholarly journals Inferring changes in water cycle dynamics of intensively managed landscapes via the theory of time-variant travel time distributions

2016 ◽  
Vol 52 (10) ◽  
pp. 7593-7614 ◽  
Author(s):  
Mohammad Danesh-Yazdi ◽  
Efi Foufoula-Georgiou ◽  
Diana L. Karwan ◽  
Gianluca Botter
Keyword(s):  
Travel Time ◽  
Water Cycle ◽  
Intensively Managed ◽  
Managed Landscapes

scholarly journals From soilscapes to landscapes: A landscape-oriented approach to simulate soil organic carbon dynamics in intensively managed landscapes

2015 ◽  
Vol 120 (11) ◽  
pp. 2375-2401 ◽  
Author(s):  
A. N. Thanos Papanicolaou ◽  
Kenneth M. Wacha ◽  
Benjamin K. Abban ◽  
Christopher G. Wilson ◽  
Jerry L. Hatfield ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Carbon Dynamics ◽  
Intensively Managed ◽  
Managed Landscapes ◽  
Soil Organic Carbon Dynamics ◽  
Oriented Approach
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