Inter-row tillage for improved soil and water  conservation and crop yields on crusted Alfisols

Pathak, P; Wani, S P; Sudi, R; Budama, Nagaraju

doi:10.4236/as.2013.48a006

Cited by 5 publications

(5 citation statements)

References 9 publications

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“…Fruit tree planting often disturbs the ground surface and reduces surface roughness through intensive land management measures such as soil preparation and removal of understory vegetation and litter layers. As a result, the water-holding capacity of understory vegetation is impaired, which could lead to increased surface runoff [41][42][43][44]. Furthermore, removal of weeds and litter can damage the ground surface structure and consequently reduce rainfall infiltration and increase soil and water loss [45].…”

Section: Effects Of Fruit Tree Planting On High and Low Flowsmentioning

confidence: 99%

Contrasting Differences in Responses of Streamflow Regimes between Reforestation and Fruit Tree Planting in a Subtropical Watershed of China

Liu

Wei

et al. 2019

Forests

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Fruit tree planting is a common practice for alleviating poverty and restoring degraded environment in developing countries. Yet, its environmental effects are rarely assessed. The Jiujushui watershed (261.4 km2), located in the subtropical Jiangxi Province of China, was selected to assess responses of several flow regime components on both reforestation and fruit tree planting. Three periods of forest changes, including a reference (1961 to 1985), reforestation (1986 to 2000) and fruit tree planting (2001 to 2016) were identified for assessment. Results suggest that the reforestation significantly decreased the average magnitude of high flow by 8.78%, and shortened high flow duration by 2.2 days compared with the reference. In contrast, fruit tree planting significantly increased the average magnitude of high flow by 27.43%. For low flows, reforestation significantly increased the average magnitude by 46.38%, and shortened low flow duration by 8.8 days, while the fruit tree planting had no significant impact on any flow regime components of low flows. We conclude that reforestation had positive impacts on high and low flows, while to our surprise, fruit tree planting had negative effects on high flows, suggesting that large areas of fruit tree planting may potentially become an important driver for some negative hydrological effects in our study area.

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Section: Effects Of Fruit Tree Planting On High and Low Flowsmentioning

confidence: 99%

Contrasting Differences in Responses of Streamflow Regimes between Reforestation and Fruit Tree Planting in a Subtropical Watershed of China

Liu

Wei

et al. 2019

Forests

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“…In addition, the expansion of fruit trees in this study led to increased surface runoff and reduced underground runoff and infiltration in the watershed (whole basin), due to ground disturbances (e.g., land preparation, removing litterfall or vegetation) in planting fruit trees. Those disturbances not only reduced the roughness of the ground surface but also destroyed the forest understorey's water retention capacity, resulting in more rainfall being directly converted into surface runoff (Schellekens et al, 2007;Pathak et al, 2013;Huang et al, 2015). To our surprise, each sub-basin has different vegetation conversion patterns, resulting in inconsistent hydrological effects among the sub-basins.…”

Section: Discussionmentioning

confidence: 99%

Impacts of climate change and fruit tree expansion on key hydrological components at different spatial scales

Liu²,

Fan³

et al. 2023

Front. For. Glob. Change

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Assessing how fruit tree expansion and climate variability affect hydrological components (e.g., water yield, surface runoff, underground runoff, soil water, evapotranspiration, and infiltration) at different spatial scales is crucial for the management and protection of watersheds, ecosystems, and engineering design. The Jiujushui watershed (259.32 km2), which experienced drastic forest changes over the past decades, was selected to explore the response mechanisms of hydrological components to fruit tree expansion and climate variability at different spatial scales (whole basin and subbasin scale). Specifically, we set up two change scenarios (average temperature increase of 0.5°C and fruit tree area expansion of 18.97%) in the SWAT model by analyzing historical data (1961∼2011). Results showed that climate change reduced water yield, surface runoff, and underground runoff by 6.75, 0.37, and 5.91 mm, respectively. By contrast, the expansion of fruit trees increased surface runoff and water yield by 2.81 and 4.10 mm, respectively, but decreased underground runoff by 1 mm. Interestingly, the sub-basins showed different intensities and directions of response under climate change and fruit tree expansion scenarios. However, the downstream response was overall more robust than the upstream response. These results suggest that there may be significant differences in the hydrological effects of climate change and fruit tree expansion at different spatial scales, thus any land disturbance measures should be carefully considered.

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“…NREdifference ( Pathak et al (2013a), who investigated the soil physical properties of the same Alfisol field as our study.…”

Section: Data Processing and Statistical Analysismentioning

confidence: 99%

Dynamics of Fertilizer Nitrogen Applied to Sweet Sorghum (<i>Sorghum bicolor</i> (L.) Moench) in the Semi-Arid Tropics

Uchino

Watanabe

Ramu

et al. 2015

JARQ

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Although sweet sorghum is in focus as a promising multi-purpose crop in semi-arid tropical regions, information on optimum nitrogen (N) management remains rather limited. To determine and understand the N dynamics in sweet sorghum-soil ecosystem, we evaluated the N recovery of applied fertilizer in the Alfisol field during the 2009 and 2010 rainy seasons. Sweet sorghum was grown under six N rates (0, 30, 60, 90, 120 and 150 kg N ha -1 ) with split application (at 0, 30 and 60 days after sowing) and N concentration and N recovery efficiency (NRE) were measured. In addition, to determine the fate of basal and topdressed N, . There was no significant difference in NRE calculated by the difference method between six N rates and N uptake rose with increasing N rate. The total dry weight and sugar yield increased at rates up to 90 kg N ha -1 and higher N rates did not significantly affect sorghum productivity. As a total of basal and topdressing applications, 33% of the applied 15 N-labeled urea was absorbed by the sorghum plant, while 36 and 30% remained in the soil and unaccounted for, respectively. The NRE calculated by the isotopic method was about 39 and 37% for topdressings at 30 and 60 days after sowing, respectively. The distribution ratio of absorbed N in leaves was higher for basal applications and topdressing at 30 days after sowing, while that in grains was higher for topdressing at 60 days after sowing, compared to the other application timings. In contrast to topdressings, the NRE was very low (13%) for basal N application: about 70% of the basal applied N remained in the soil at the physiological maturity. The results imply that the NRE might be increased by improving the ways in which basal N is applied. Discipline: Biofuel/Soils fertilizers and plant nutrition Additional key words:15 N-labeled urea, fertilizer application timing, nitrogen recovery efficiencyThis study was part of a research project titled "Development of sustainable soil fertility management for sorghum and sweet sorghum through effective use of biological nitrification inhibition (BNI)" and was funded by a grant from Japan's Ministry of Agriculture, Forestry and Fisheries (MAFF).

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Inter-row tillage for improved soil and water conservation and crop yields on crusted Alfisols

Cited by 5 publications

References 9 publications

Contrasting Differences in Responses of Streamflow Regimes between Reforestation and Fruit Tree Planting in a Subtropical Watershed of China

Contrasting Differences in Responses of Streamflow Regimes between Reforestation and Fruit Tree Planting in a Subtropical Watershed of China

Impacts of climate change and fruit tree expansion on key hydrological components at different spatial scales

Dynamics of Fertilizer Nitrogen Applied to Sweet Sorghum (<i>Sorghum bicolor</i> (L.) Moench) in the Semi-Arid Tropics

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