tree
Eucalyptus is becoming a dominant tree in the highlands of Ethiopia. The flowering trees that originated in Australia are surprisingly well suited to the region, says a Cornell graduate student. They grow quickly and do not require fertile soil. In Ethiopia, most eucalyptus species do not reseed on their own, so they do not become invasive. They provide shade and can be sold or used for...
In this comprehensive and abundantly illustrated book, Allan Schoenherr describes a state with a greater range of landforms, a greater variety of habitats, and more kinds of plants and animals than any area of equivalent size in all of North America. A Natural History of California will familiarise the reader with the climate, rocks, soil, plants and animals in each distinctive region of the...
Global warming is a real, rapidly advancing, and widespread threat facing humanity this century. Climate change is expected to accelerate water cycles and thereby increase the available, renewable freshwater Recent observations suggest that at global scales, rapid environmental changes may be altering the structure, composition and dynamics of forests. Predicted global warming will...
The needs for advanced studies on impacts of climate change have been realised. In this study, the major focus is on changing climatic pattern and increasing natural hazards and its environmental consequences in Nepal. The climatic records of Nepal extend back to a relatively short period and may not adequately represent the range of natural climatic variability. Long term climatic data is...
To derive optimal benefits from intercropping timber, farmers should make important initial decisions on tree species and planting density with a good understanding of their tradeoffs. Complex and dataintensive models used by researchers should be supplemented with simpler models based on easily measured parameters and easily understood competition functions. In experiments in the Philippine...
Local people’s preference scores for firewood species were studied through pair-wise ranking tools of Participatory Rural Appraisal technique from Yuksam-Dzongri trekking trail, Sikkim, India. A wide variety of plant species used as firewood was enlisted. These woody tree species with potential firewood use value were analysed for their Firewood Value Index (FVI) considering energy value,...
Tree height-diameter relationship can be used as an important input component in growth and yield models, and description of stand dynamics. This study aims at establishing robust height-diameter models for Chir pine (Pinus roxburghii) trees using regression techniques. Among the twelve non-linear models fitted to height-diameter data from twentythree Chir pine stands in Parbat and Shyangja...
Oaks (Quercus spp.) are among the dominant vascular plants of the Himalayas, ranging from the subtropical to the sub-alpine zones. They play an important role in maintaining ecosystem stability. Oaks in the Himalayan region are intimately linked with subsistence hill agriculture as they protect soil fertility, watershed and local biodiversity. They also supply fodder, leaf litter, firewood and...
Comparative study of vegetation structure and composition of two forests at Tamafok (TF) and Madimulkharka (MM) villages in the Piluwa micro-watershed was undertaken. A total of 20 tree species were reported, with more species in the non-degraded TF forest than in the degraded MM forest. Rhododendron arboreum and Goldfussia penstemonoides were the dominant species in the TF...
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