2006-07 - Kerala Forest Research Institute

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Annual report 2006-07Kerala Forest Research Instituteand E. grandis at Wadakkancherry. The cloneswere supplied and technical help was provided.Luxuriant growth of Mikania micrantha....................................................................................................................................................................................Classical biological control of Mikaniamicrantha with Puccinia spegazziniiInvestigator(s): Sankaran, K.V., Anitha, V.Objectives• To test the host specificity of Pucciniaspegazzinii against a number of economicallyimportant plants• To attempt biocontrol of Mikania usingthe fungusDate of Commencement : 2003 JulyDate of Completion : 2006 DecemberBudget : £27,715Sponsoring Agency : Department forInternationalDevelopment(DFID), UKThe host specificity of the biocontrol agent,Puccinia spegazzinii, was tested against a numberof economically important plants. It was foundthat the fungus was very specific to mikaniaand not other agricultural plants. The funguswas released in agricultural systems in Keralaand it got established on natural population ofmikania and is spreading.Water and light use characteristics of thevegetation in the different strata of atropical moist deciduous forestInvestigator(s): Kallarackal, J.,Chandrashekara, U.M.Objectives• To study the availability and efficiency oflight usage by the lower strata seedlingsin a moist deciduous forest.• To study the water consumption of thedifferent species of trees belonging to thethree strata in a moist deciduous forest.• To study the water use by some dominanttree species such as teak, Terminalia, Xyliaetc. that are used in plantations andafforestation programmes.• To study the phenological features ofsome of the species of trees belongingto the three strata in a moist deciduousforest.• To evolve a model for evapotranspirationfrom a moist deciduous forestso that it can be used in calculations ofthe water balance from a catchment.Date of Commencement: 2004 JanuaryDate of Completion :2007 AprilBudget:Rs. 19.20 lakhsSponsoring Agency :Ministry of Environmentand Forests,Govt. of IndiaObservations on leaf area index, soil moisture,leaf litter area, SLA and phenology werecomple-ted in nine experimental plotsestablished at Pattakarimba in Nilambur. Sapflow was meas-ured in twelve tree speciesnamely, Xylia xylocarpa, Wrightia tinctoria,Stereospermum colais, Gmelina arborea, Tectonagrandis, Dalbergia latifolia, Cleistanthus collinus,Sterculia guttata, Terminalia crenulata, Terminaliapaniculata, Bauhinia malabarica and Dillenia34
Kerala Forest Research InstituteAnnual report 2006-07pentagyna. The data showed much variation inwater use by different species. It was foundthat even though some growing species suchas Gmelina, used more water, had a goodstomatal closure mechanism during times ofhigh VPD. The leaf area index showed muchseasonal variation varying from 1.5 to 4.2 duringthe year....................................................................................................................................................................................Landuse change and its impact on selectedbiophysical and socio-economic aspects ofKaruvannur river basin in Thrissur Districtof KeralaInvestigator(s): Muraleedharan, P.K.,Kallarackal, J., Balagopalan, M., Menon,A.R.R., Sasidharan, N., Rugmini, P.Objectives• To examine landuse change and its effectson eco-hydrology and socio-economicconditions of the people.• To examine the extent of forest degradationand its effect on sediment productionand water discharge rate.• To measure the rate of surface runoffand to model a suitable land use system.Date of Commencement : 2004 FebruaryDate of Completion : 2007 JanuaryBudget: Rs. 15.40 lakhsSponsoring Agency : Ministry ofEnvironment andForests,Govt. of IndiaThis study was conducted in Manali watershedof Karuvannur river basin to examine landusechange and its effects on eco-hydrology andsocio-economic conditions of the people in thearea. The major focus of the study was thelanduse changes, particularly conversion offorest land to agricultural land in the study areaduring the analysis period 1960-61 to 2004-05.In addition, it attempted to assess total economicvaluation of the Peechi wetland. Properpricing of water from the Dam to generatemore funds to meet cost of supply and waterresource development was also attempted.Establishment of butterfly garden atNilamburInvestigator(s): George Mathew, Sajeev, T.V.Objectives• To develop a butterfly garden and togenerate conservation awareness amongpublic and to generate revenueDate of Commencement: 2004 JanuaryDate of Completion : 2007 MarchBudget: Rs. 5.89 lakhsSponsoring Agency: KFRI Plan GrantsView of butterfly garden at NilamburIntroduction of butterfly host plants andcreating suitable habitats were undertaken.Information pertaining to the life historypatterns, host range and habitat associations ofvarious butterflies was gathered. Ixora, Citrus,Albizia, Cassia, Cinnamomum, Aristolochia andMussaenda were identified as the common larvalhost plants that can be introduced for attractingseveral butterflies found in Kerala. Ixora,Lantana, Mussaenda, marigold, zinnia and35
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2006-07 - Kerala Forest Research Institute

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