The yew of the Himalayas in danger of extinction, medicinal plant of high value of the Himalayas, on the verge of extinction
CHANDIGARH: The GB Pant Institute Of The Environment And Development Of The Himalayas, Headquartered In Kullu, Headquartered In Himachal Pardesh, Conducted A Study On The Ecology Of The Population Of The Himalayan Endangered Yew (Khokhan WLS) Of The Northwest Himalayas For Management Of Conservation.
Yew Is A High-value Native Medicinal Plant Endangered From The Himalayan Region. The Various Medicinal Properties Of The Bark And The Leaves Of This Species Have Increased Their Risk Of Extinction Due To The Pressure Of Use. The Species Does Not Regenerate From Seed, Which Is Another Risk Factor. Six Forest The Communities Where The Species Is Present Were Sampled In The Study, Which Revealed That The Abundance Of The Species, The Impacts Of The Collection And Its Current Patterns Of Regeneration Indicate That It Could Soon Disappear From The Sanctuary. The Study Also Presented A Plan For The Conservation Of The Remaining Subpopulation, Which Could Provide A Template For Conservation In Other Places Where This Species Is At Risk.
The Objective Of The Research Was To Evaluate The State Of The Himalayan Tejo In The Khokhan WLS To Provide Factors Responsible For The Depletion Of The Population And Develop A Strategy For The Conservation Of The Species In The Sanctuary.
Khokhan WLS Is Located In The District Of Kullu In The Northwest Of Himalayas. Worldwide, The Yew Is Valued Primarily For The Medicinal Properties Of Taxol. According To The Meaning Of The Dictionary, A Compound, Originally Obtained From The Bark Of The Yew Tree, Has Been Found To Inhibit The Growth Of Certain Types Of Cancer. Its Anticancer Properties Were Reported For The First Time In 1964. In India, The Conservation Community Worried That The Greater Utilization Of The Himalayan Yew Would Make It More Vulnerable. The Tree Is Also A Source Of Zarnab Drug, Which Is Used Frequently In The Unani Medicine System. The Extract Derived From The Bark And Leaves Is Used To Cure Bronchitis, Asthma, Acute Headache, Cough And Cold And Poisonous Insect Bites And Is Also Used As.
In Addition To Its Medicinal Use, Yew Wood Has Value As An Extremely Hard And Durable Wood Product. In East Anglia And In India, Tejo Wood Has Been Used For The Manufacture Of Furniture, For Wood Carving And Also As Fuel. Because Of Its Many Beneficial Uses, The Himalayan Yew Has Been Exploited On The Edge Of Extinction. Their Habitats Have Been Degraded By The Human Uses Of The Earth. These Effects Are Exacerbated Even More By The Relative Intolerance Of The Species To Fire And Drought And Poor Regeneration.
S. Samant, Director Of The GB Pant Institute, Said:" Although The Present Study Was Limited To Only One Place, Its Findings Indicate That There Is An Urgent Need To Develop A Conservation Strategy Suitable For This Species. The Poplar Population Of The Himalayas Around The World Must Be Inventaried Using The Standard Ecological Method.
A Monitoring Plan Should Be Developed And Implemented To Determine Trends In Existing Populations. Apart From This, The Sustainable Methods Of Extracting Bark And Leaves Must Be Developed And Disseminated To The Local Inhabitant.
More Research On The Regeneration Of This Species, Both Vegetative And Seed, Should Be Investigated" . In Addition, He Recommended In His Study That An Effort Be Made To Obtain The Help Of The Local Residents For The Propagation Of The Species. The In Situ Conservation Of The Species Should Be Promoted. Seedlings Developed From Seeds And Cuttings Should Be Transplanted To Appropriate Places In The Sanctuary And Their Growth And Survival Should Be Monitored.
His Co-investigator Shreekar Pant Mentioned In The Study That The Collection Of Firewood For Fuel By The Gujjars And The Inhabitants Of The Peripheral Villages Has Caused Damage, Increased Susceptibility To Diseases And Has Also Contributed To Mortality. The Information Collected During This Study Indicated That 50% Of The Surviving Tejas Have Been Affected By The Removal Of The Bark And The Rest Are Subject To Clearing And Felling To Obtain Fuel. The Majority Of The Bark Is Harvested From The Largest Trees (60% Are Affected).