2020
DOI: 10.3897/natureconservation.42.59284
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Number and distribution of large old ginkgos in east China: Implications for regional conservation

Abstract: Large old ginkgos (LOGs), having important ecological, cultural and historical values, are widely distributed in China. However, little is known regarding their quantity and tree-habitat quality in the mesoscale distribution. Here, the quantity, spatial distribution and conservation status of Ginkgo biloba L. older than 100 years in Jiangsu Province, east China were examined using ArcGIS software and detrended correspondence analysis (DCA). Based on our collated data, Jiangsu Province included 2,123 LOG indivi… Show more

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Cited by 8 publications
(13 citation statements)
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“…The investigations of ancient trees were made following "Technical Guidelines for Document Establishment of General Survey of National Ancient-Famous Trees". It was issued by the State Forestry Bureau in 2001 and has been widely used in China recently [7,12]. Based on tree ages, three protection categories were classified as tier 3 (100-299 years of age), tier 2 (300-499 years of age), and tier 1 (≥500 years of age).…”
Section: Study Methodsmentioning
confidence: 99%
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“…The investigations of ancient trees were made following "Technical Guidelines for Document Establishment of General Survey of National Ancient-Famous Trees". It was issued by the State Forestry Bureau in 2001 and has been widely used in China recently [7,12]. Based on tree ages, three protection categories were classified as tier 3 (100-299 years of age), tier 2 (300-499 years of age), and tier 1 (≥500 years of age).…”
Section: Study Methodsmentioning
confidence: 99%
“…According to DBH and tree growth characteristics, we first checked the tree age of each individual, and then removed the records of such trees less than 100 years old. The remained trees were divided into four categories as "good", "fair", "poor", and "dying" by the description of growth status (Table 2) [7,8]. Moreover, nine tree habitat types were classified based on the detailed records of ancient trees' growing sites (Table 3) [1,12].…”
Section: Study Methodsmentioning
confidence: 99%
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