Pinus krempfii and Fokienia hodginsii are rare species of flora listed in Group IIA, including endangered species prohibited from exploitation and use for commercial purposes...
Pinus krempfii and Fokienia hodginsii are rare species of flora listed in Group IIA, including endangered species prohibited from exploitation and use for commercial purposes. According to a recent survey, Pinus krempfii and Fokienia hodginsii populations have decreased significantly and thus need urgent preservation.
According to the subject on evaluation of Pinus krempfii and Fokienia hodginsii distribution and multiplication test examined and approved by Khanh Hoa Provincial Council of Science & Technology, there are 114 Pinus krempfii and Fokienia hodginsii trees in some places outside Hon Ba Reserve.
According to Tran Gioi, former expert of Khanh Hoa Division of Forestry, the two species are distributed in regions at an altitude of 1,100m. Therefore, the survey is conducted in the 7 communes of Van Luong (Van Ninh), Ninh Thuong, Ninh Tay (Ninh Hoa), Son Thai, Giang Ly (Khanh Vinh), Son Hiep and Son Trung (Khanh Son).
It is found that Pinus krempfii has a smaller habitat than Fokienia hodginsii. Pinus krempfii is found only in the two surveyed regions namely Hon Vong Phu (Ninh Tay Commune) and Hon Giao (Son Thai). Its 49 individuals are grouped into 3 distinct populations distributed in an area of over 47ha at an aptitude of 1,300 – 1,600m. Suitable measures are needed to protect Pinus krempfii.
Fokienia hodginsii is distributed mainly western of the province. Its timber and oil, which are highly valued, have been intensively exploited. Fokienia hodginsii is listed in the List of Rare and Precious Flora and Fauna for limited exploitation. Most of remaining Pinus krempfii and Fokienia hodginsii trees are found in Son Thai with 97 individuals, but most of them are small, not qualified for population maintenance.
Khanh Hoa has 198 individuals, including 75 Pinus krempfii trees and 123 Fokienia hodginsii ones. Their regenerated trees have low density and account for 3.3% of regenerated trees in total. Suitable methods are required to promote its natural regeneration. Suggestions include localizing existing populations, promoting natural regeneration, environmental education and activities; forming nursery gardens, establishing Son Thai and Giang Ly Nature Reserve, which is known for its high biodiversity and the main habitat of the two vulnerable species.
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