塔吉克斯坦受威胁维管植物物种多样性及保护空缺研究

doi:10.12118/j.issn.1000-6060.2024.067

Abstract

Abstract:

Threatened species are critical targets for biodiversity conservation. This study evaluates the diversity and conservation status of threatened vascular plant species in Tajikistan using data from the International Union for Conservation of Nature (IUCN) red list and Tajikistan’s national red list. Discrepancies between the IUCN red list and the national red list are analyzed. Geographic information systems (GIS) and gap analysis (GAP), combined with distribution patterns of threatened plant species and the national protected area map in Tajikistan, are used to conduct a protection gap analysis for these species. The findings are as follows: (1) The genera with the highest number of threatened species in Tajikistan include Allium, Tulipa, and Ferula, primarily impacted by grazing, collection, and mining activities. (2) A total of 228 threatened species are listed in both the 2015 Tajikistan red list [NRL (2015)] and the third edition of the 2022 IUCN red list [IUCN-RL (2022)], with 11 species common to both lists. In the IUCN-RL (2022), six species are classified at a higher threat level than in the NRL (2015), four at a lower threat level, and one at the same level. These discrepancies arise from differences in assessment criteria, classification perspectives, changes in species status, and incomplete data. (3) The distribution of threatened species across Tajikistan is relatively scattered, with the highest threatened species richness in the Hissar-Darvasian A region. (4) Protected areas cover approximately 22% of Tajikistan’s territory; however, their boundaries do not fully align with regions of higher species richness. The protection level in key areas is insufficient and requires strengthening.

Key words: Tajikistan, pant diversity, threatened plant, distribution pattern, conservation gaps

LI Yufan, LI Wenjun, MA Suliya, SU Yuqi, WANG Hongfeng. Diversity and conservation gaps of threatened vascular plant species in Tajikistan[J].Arid Land Geography, 2025, 48(1): 43-52.

Figures/Tables 5

Tab. 1

Tab. 2

Tab. 3

Fig. 1

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植物类型	NRL（2015年）						IUCN-RL（2022年）
植物类型	科数	占比/%	属数	占比/%	种数	占比/%	科数	占比/%	属数	占比/%	种数	占比/%
被子植物	38	86.36	105	93.75	212	96.37	5	100.00	8	100.00	19	100.00
蕨类植物	4	9.09	5	4.46	5	2.27	-	-	-	-	-	-
裸子植物	2	4.55	2	1.79	3	1.36	-	-	-	-	-	-
合计	44	100.00	112	100.00	220	100.00	5	100.00	8	100.00	19	100.00

含种数	NRL（2015年）				IUCN-RL（2022年）				综合2份名录
含种数	科数	占比/%	属数	占比/%	科数	占比/%	属数	占比/%	科数	占比/%	属数	占比/%
>20	2	4.44	11	9.82	-	-	-	-	2	4.54	11	9.74
2~20	25	55.56	84	75.00	3	60.00	6	75.00	25	56.82	85	75.22
1	17	40.00	17	15.18	2	40.00	2	25.00	17	38.64	17	15.04
合计	44	100.00	112	100.00	5	100.00	8	100.00	44	100.00	113	100.00

受威胁等级	NRL（2015年）		IUCN-RL（2022年）		综合2份名录
受威胁等级	种数	占比/%	种数	占比/%	种数	占比/%
极危	51	23.18	8	42.11	56	24.56
濒危	72	32.73	4	21.05	73	32.02
易危	97	44.09	7	36.84	99	43.42
合计	220	100.00	19	100.00	228	100.00

Diversity and conservation gaps of threatened vascular plant species in Tajikistan

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