Invasive Alien Plant Species (IAPS) are major threat to the earth’s plant biodiversity. With the rapid expansion of IAPS in Nepal, the techniques of using IAPS in form of charcoal have derived profound benefit to the forest condition. This study aims to analyse the effect of removal of IAPS on forest management in terms of plant diversity at regeneration level. In addition, the impact on the species richness, species evenness and stand density was also studied for three community forests representing different physiographic zones of Nepal. Each forest was divided into two blocks- treatment applied block and control block with size of 20 ha each. Treatment block represented the IAPS removed forest area while control block represented forest area with no intervention. The study was conducted using stratified random sampling. Forest inventory with nested circular plot of 500 m2, was performed in both blocks to figure out the changes in regeneration level. Shannon-Wiener diversity index was used to assess the change in diversities at regeneration level. Margalef index and Pielou’s evenness index were used to calculate species richness and evenness. According to Shannon-Weiner index, treatment block showed significantly higher plant diversity and a greater number of seedlings and saplings in comparison to control block. Similarly, the value of Margalef index and Pielou’s evenness index were greater in treatment applied block. Species density at regeneration level and growing stocks of trees were found higher in treatment applied block while species density at tree level in the control block. It is suggested that promotion of invasive species management through policy level/main actors of forest sector, capacity enhancement of local forest user and proper financing could be a strategy to secure dual benefit to forest and its user.

Sea buckthorn (Hippophae rhamnoides) is a common coastal species in The Netherlands that potentially burns with extreme energy levels. In this region of Europe that is experiencing increases in wildfire events, the need to gain a greater understanding of energy released when this species burns will improve fire behavior predictions. The objective of this study was to conduct an initial investigation into the foliage flammability of sea buckthorn to a common southern United States native shrub known for its flammability, yaupon (Ilex vomitoria), and two common dominant shrub species in California chaparral, chamise (Adenostoma fasciculatum), and manzanita (Arctostaphylos spp.). Flammability parameters were evaluated using thermogravimetric analysis (TGA) and oxygen bomb calorimetry to estimate relative spontaneous ignition temperature (RSIT), gas-phase maximum mass loss rate (GP-MMLR), gas-phase combustion duration (GP-CD), volatile matter%, fixed carbon%, ash%, and net heat content (NHC). Sea buckthorn exhibited similar ignitability ( GPMMLR) to yaupon. Sea buckthorn and yaupon shared similar NHC values and subsequent fire behavior outputs. Proximate analysis for VM% and FC% were varied, but low ash% values correlated with slightly lower RSIT’s for sea buckthorn and chamise. Anecdotal information from a 2019 prescribed burn along the coast of The Netherlands highlighted significant fire behavior, and shows similarities with these species in two North American ecosystems.