TY  - Data
T1  - Survey data set of vegetation communities in some areas of Inner Mongolia Autonomous Region and Ningxia Hui Autonomous Region (June August 2017)
A1  - Wang Renzhong
A1  - Ma Linna
A1  - Dang Zhenhua
DO  - 10.12072/ncdc.Dgrass.db2095.2022
PY  - 2022
DA  - 2022-05-20
PB  - National Cryosphere Desert Data Center
AB  - This data set is the survey data of vegetation communities in desert grassland and typical grassland in Inner Mongolia Autonomous Region and Ningxia Hui Autonomous Region. This experiment provides basic data for the study of the causes, processes and mechanisms of natural grassland degradation. Attribute information includes: species richness, quadrat coverage, aboveground biomass, litter biomass and degradation gradient (0: potential degradation; 1: mild degradation; 2: moderate degradation; 3: severe degradation). Species richness: Shannon Weiner index H’=- Σ PilnPi  Where pi = Ni / N, Ni is the number of individuals of species I, and N is the sum of the number of individuals of all species in the community. Quadrat coverage: the percentage of the area covered by the vertical projection of the aboveground part of the plant in the investigated area. Aboveground biomass: take the aboveground part of the plant sample and place it in a 65 ℃ constant temperature oven for 24 hours. After taking it out, weigh it with a micrometer electronic balance. Litter biomass: collect the litter in each quadrat and weigh it with a micrometer balance. Degradation gradient: different degrees of grassland degradation.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/2d85a19a-3891-4563-bfbe-77704b9e09ff
ER  -