Water balance and water use efficiency of different land uses in western Himalayan valley region

Narain, P.; Singh, R. K.; Sindhwal, N. S.; Joshie, P.

doi:10.1016/s0378-3774(98)00047-x

Cited by 29 publications

(15 citation statements)

References 5 publications

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“…It has been suggested that in intercropping soil water use is more efficient compared to monocropping (Fernández et al 2008;Narain et al 1998). Hydraulic lift, the process in which deep rooted trees take in water from lower soil layers and release this water into upper, drier soil layers could be a water source for neighboring plants in intercropping (Burgess et al 2001;Caldwell and Richards 1989).…”

Section: Water Conservationmentioning

confidence: 99%

Ecological benefits provided by alley cropping systems for production of woody biomass in the temperate region: a review

et al. 2012

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In temperate Europe alley cropping systems which integrate strips of short rotation coppices into conventional agricultural fields (ACS) are receiving increasing attention. These systems can be used for crops and woody biomass production at the same time, enabling farmers to diversify the provision of market goods. Adding trees into the agricultural land creates various additional benefits for the farmer and society, also known as ecosystem services. However, tree-crop interactions in the temperate region have not been adequately substantiated which is identified as a drawback to the practical implementation of such systems. In order to bridge this gap, the current paper aims to present a comprehensive overview of selected ecosystem services provided by agroforestry with focus on ACS in the temperate region. The literature indicates that compared with conventional agriculture ACS have the potential to increase carbon sequestration, improve soil fertility and generally optimize the utilization of resources. Furthermore, due to their structural flexibility, ACS may help to regulate water quality, enhance biodiversity, and increase the overall productivity. ACS are shown as suitable land use systems especially for marginal sites. Based on the available data collected, we conclude that ACS are advantageous compared to conventional agriculture in many aspects, and therefore suggest that they should be implemented at a larger scale in temperate regions.

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Section: Water Conservationmentioning

confidence: 99%

Ecological benefits provided by alley cropping systems for production of woody biomass in the temperate region: a review

et al. 2012

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“…However, total water extraction was lower compared to that found by Narain et al (1998) (average rainfall of 1037 mm year -1 ) who measured 1528 and 1397 mm year -1 in sole leucaena and leucaenagrass pasture respectively.…”

Section: Complementarity and Competition For Water Resourcescontrasting

confidence: 67%

“…The influence of defoliation on WU requires further study. Overall, the amounts of water extracted were lower than those reported by Narain et al (1998) at a location receiving an average of 1,523 mm of rainfall. In a 4-year study of water use under different land uses, which included a leucaena monoculture and a leucaena-grass system, they reported average WUs of 1,528 and 1,397 mm/yr, respectively.…”

Section: Water Uptake Patternscontrasting

confidence: 60%

“…One example of this is the research into water balance and water use efficiency of different land uses reported by Narain et al (1998). They found that the average of runoff over five years from cultivated fallow was 38% of seasonal rainfall which reduced to 28% with maize and, 21% with maize + leucaena, 13% under maize + eucalyptus and 4%…”

Section: Evapotranspiration and Water Movement In Agroforestrymentioning

confidence: 99%

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A study of water use in leucaena-grass systems

Pachas¹

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Leucaena [Leucaena leucocephala Lam. de Wit ssp. glabrata (Rose) Zarate] mixed with Rhodes grass (Chloris gayana Kunth), is widely grown in tropical northern Australia in a hedgerow silvopastoral system which is productive, profitable and sustainable for beef cattle production. However, there is poor understanding concerning the most appropriate tree densities and planting configurations for leucaena and grass forage systems. Limited studies have focused on above-ground interactions between the species with even fewer on below-ground competition. Therefore, the main objective of this thesis was to investigate above-and below-ground competition, with emphasis on water use of both the leucaena and grass at a range of leucaena densities. Additional objectives were to determine (a) the effect of plant density on above-ground interactions between the species; (b) spatial and temporal water use of both species; (c) rooting patterns and deep drainage in a commercial leucaena-grass pasture; and (d) the effect of defoliation on water use of leucaena.The following experiments were conducted to address these objectives, firstly a field monitoring experiment in a commercial leucaena-grass pasture system at north-east of Injune, Central Queensland; secondly, two experiments in a controlled glasshouse environment at the University of Queensland, St. Lucia Campus Brisbane; and thirdly, three field experiments at the University of Queensland, Gatton Campus, Gatton Australia.The detailed monitoring analysis, using high-technology soil water moisture sensors, provided water use information and highlighted that there was minimal spatial and temporal complementarity of water use between the species. This was contrary to the general agroforestry hypothesis that trees acquired water from different soil strata when grown in association with grass. A high level of competition for water was evident as most of the water extraction occurred in the top 1.5 m of the soil profile. In the second year, root activity and water extraction became shallower probably associated with overgrazing and severe pruning. Another important outcome of this experiment was the low level of deep drainage to 4 m.The effect of leucaena plant density on above and below-ground interactions was then investigated using a Nelder fan design established at Gatton research farm from

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“…Em um sistema agroflorestal, foi registrada para quebra-ventos a redução da evaporação na ordem de 20 a 30%, bem como a diminuição do escoamento superficial em terras inclinadas, com incremento da água infiltrada e maior eficiência no uso da água (YOUNG, 1989;NARAIN et al, 2000).…”

Section: Neves Yp Et Alunclassified

Teor de água e fertilidade do solo com cafeeiros cultivados em sistemas agroflorestais

et al. 2007

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575RESUMO -Com o objetivo de comparar a umidade e a fertilidade do solo em sistemas de cafeeiro consorciado com níveis baixos de adubação e em cultivo convencional, foram testados os seguintes tratamentos: cafeeiro (Coffea arabica L.) a pleno sol; cafeeiro com fedegoso; cafeeiro com fedegoso e bananeira; cafeeiro com fedegoso, bananeira e ipê-preto, os três últimos com a mesma densidade de plantas consorciadas e todos os tratamentos com o mesmo número de plantas de café. O ensaio foi mantido por 57 meses, e a retenção de água pelo solo e a evolução da fertilidade no período foram avaliados na última estação seca (54 meses). A economia hídrica tem balanço favorável para o cultivo em consórcio no início da estação seca, porém sua manutenção dependerá da exigência hídrica dos componentes do consórcio e do regime hídrico. O cultivo consorciado favoreceu a manutenção do pH e a redução da saturação por alumínio, muito embora as necessidades de nutrientes dos componentes do consórcio devam ser satisfeitas por meio de entradas externas, para evitar o empobrecimento gradual do solo.Palavras-chave: Conservação da água, consórcio, e saturação por alumínio. SOIL MOISTURE AND SOIL FERTILITY OF COFFEE IN AGROFORESTRY SYSTEMS ABSTRACT -The aim of this study was to compare the soil moisture and fertility in coffee systems intercropped with trees with low levels of fertilization and in conventional system

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Water balance and water use efficiency of different land uses in western Himalayan valley region

Cited by 29 publications

References 5 publications

Ecological benefits provided by alley cropping systems for production of woody biomass in the temperate region: a review

Ecological benefits provided by alley cropping systems for production of woody biomass in the temperate region: a review

A study of water use in leucaena-grass systems

Teor de água e fertilidade do solo com cafeeiros cultivados em sistemas agroflorestais

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