Species richness patterns and resource plant conservation assessments of Rosaceae in China

doi:10.17521/cjpe.2018.0091

Abstract

Abstract:

Aims Rosaceae is a widely-distributed family with numerous economic resource plants in China. However, the species richness pattern and the current conservation status of resource plants remain poorly evaluated. Here we aim to identify the economic resource plants of Rosaceae in China, estimate the species richness patterns for all Rosaceae plants combined and for different resource groups and evaluate the relationships between species richness patterns and environmental variables. We also evaluate the current conservation status of economic resource plants of Rosaceae.
Methods We first made the species list of all 914 Rosaceae species in China and identified the species with different economic usages, including edible, ornamental, medicinal plants and fruit germplasm resources. We then collected high-resolution distribution maps of all Rosaceae species, estimated the species richness patterns by overlapping these maps, and identified the diversity hotspots of different species groups. With high-resolution environmental data, we compared the effects of different environmental variables on the species richness and species composition of all Rosaceae species combined and the four main resource groups using generalized linear models (GLM) and redundancy analysis (RDA). Finally, we evaluated the conservation status of Rosaceae with distribution data overlaid by maps of nature reserves of China in ArcGIS.
Important findings 1) The species richness hotspots of Rosaceae in China are mainly located in the mountain areas in the north, east and west of Sichuan basin as well as Hengduan Mountains. 2) Species richness patterns of Rosaceae are mainly determined by humidity factors. 3) Poorly protected species are mainly in Hengduan Mountains, Southeast Yunnan and Xizang, and concentrated in the genus of Rubus.

http://jtp.cnki.net/bilingual/detail/html/ZWSB201901001

Key words: Rosaceae, species richness, humidity, plant resource, plant diversity conservation, natural reserve

Dong-Ting ZOU, Qing-Gang WANG, Ao LUO, Zhi-Heng WANG. Species richness patterns and resource plant conservation assessments of Rosaceae in China[J]. Chin J Plant Ecol, 2019, 43(1): 1-15.

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References 91

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环境变量 Environmental variables	总体 All species	食用植物 Edible plants	园林植物 Ornamental plants	药用植物 Medicinal plants	水果资源 Fruit Germplasm Resource
气温 Temperature
MAT	14.4	24.1	15.4	16.6	19.0
MTCQ	21.4	20.5	18.0	18.1	29.2
MTWQ	3.7	20.1	7.7	9.3	3.7
降水 Precipitaion
AP	25.2	27.3	21.6	25.9	27.9
MI	35.0	24.3	28.7	31.1	36.2
AET	23.2	35.3	24.7	28.4	28.0
气候季节性 Climate Seasonality
TSN	-19.3	-5.2	-9.7	-8.2	-30.6
PSN	-11.1	-8.6	-9.8	-12.7	-12.0
生境异质性 Habitat heterogeneity
logELER	21.0	2.4	11.3	10.9	19.4
logMATR	20.1	2.0	10.8	10.2	18.7
logAPR	9.3	2.3	5.6	5.8	7.1
末次盛冰期以来的气候变化 Climate Change since the LGM
anomaly_MAT	-12.7	-7.7	-7.1	-9.0	-17.1
anomaly_AP	-5.5	n.s.	-3.7	-1.8	-6.8
velocity_MAT	-25.3	-10.6	-17.2	-17.4	-30.9
velocity_AP	-11.5	-15.9	-11.9	-10.5	-17.8

环境变量 Environmental variables	总体 All species	食用植物 Edible plants	园林植物 Ornamental plants	药用植物 Medicinal plants	水果资源 Fruit Germplasm Resource
气温 Temperature
MAT	14.4	24.1	15.4	16.6	19.0
MTCQ	21.4	20.5	18.0	18.1	29.2
MTWQ	3.7	20.1	7.7	9.3	3.7
降水 Precipitaion
AP	25.2	27.3	21.6	25.9	27.9
MI	35.0	24.3	28.7	31.1	36.2
AET	23.2	35.3	24.7	28.4	28.0
气候季节性 Climate Seasonality
TSN	-19.3	-5.2	-9.7	-8.2	-30.6
PSN	-11.1	-8.6	-9.8	-12.7	-12.0
生境异质性 Habitat heterogeneity
logELER	21.0	2.4	11.3	10.9	19.4
logMATR	20.1	2.0	10.8	10.2	18.7
logAPR	9.3	2.3	5.6	5.8	7.1
末次盛冰期以来的气候变化 Climate Change since the LGM
anomaly_MAT	-12.7	-7.7	-7.1	-9.0	-17.1
anomaly_AP	-5.5	n.s.	-3.7	-1.8	-6.8
velocity_MAT	-25.3	-10.6	-17.2	-17.4	-30.9
velocity_AP	-11.5	-15.9	-11.9	-10.5	-17.8

热点地区类型 Type of hotspot	网格数 Number of grid cells	被保护区覆盖的网格比例 Proportion of grid cells covered by natural reserves	网格内保护区的平均个数 Mean number of natural reserves in each grid cell	保护区覆盖面积比例 Proportion of area covered by natural reserves	保护区覆盖面积小于10%的网格数量比例 Proportion of grid cells with < 10% of area covered by natural reserve
所有物种 All species	189	0.693	1.47	0.135	0.397
食用植物 Edible plants	165	0.721	1.58	0.102	0.327
园林植物 Ornamental plants	187	0.717	1.52	0.124	0.380
药用植物 Medicinal plants	185	0.735	1.55	0.122	0.373
水果种质资源 Fruit germplasm resource	172	0.727	1.57	0.137	0.424
四类热点 Type IV hotspot	78	0.782	2.01	0.161	0.333
三类热点 Type III hotspot	94	0.691	1.18	0.091	0.426
二类热点 Type II hotspot	25	0.680	1.40	0.116	0.360
单一热点 Type I hotspot	65	0.631	1.11	0.068	0.446

热点地区类型 Type of hotspot	网格数 Number of grid cells	被保护区覆盖的网格比例 Proportion of grid cells covered by natural reserves	网格内保护区的平均个数 Mean number of natural reserves in each grid cell	保护区覆盖面积比例 Proportion of area covered by natural reserves	保护区覆盖面积小于10%的网格数量比例 Proportion of grid cells with < 10% of area covered by natural reserve
所有物种 All species	189	0.693	1.47	0.135	0.397
食用植物 Edible plants	165	0.721	1.58	0.102	0.327
园林植物 Ornamental plants	187	0.717	1.52	0.124	0.380
药用植物 Medicinal plants	185	0.735	1.55	0.122	0.373
水果种质资源 Fruit germplasm resource	172	0.727	1.57	0.137	0.424
四类热点 Type IV hotspot	78	0.782	2.01	0.161	0.333
三类热点 Type III hotspot	94	0.691	1.18	0.091	0.426
二类热点 Type II hotspot	25	0.680	1.40	0.116	0.360
单一热点 Type I hotspot	65	0.631	1.11	0.068	0.446

资源类型 Resource type	物种总数 Total number of species	保护薄弱物种数 Number of poorly protected species	保护薄弱物种占比 Proportion of poorly protected species
食用植物 Edible plants	120	1	0.008
园林植物 Ornamental plants	286	12	0.042
药用植物 Medicinal plants	495	8	0.016
水果种质资源 Fruit germplasm resource	398	61	0.153