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长期降水量变化下荒漠草原植物生物量、多样性的变化及其影响因素
王晓悦1, 许艺馨2, 李春环2, 余海龙2, 黄菊莹1,*()
Changes of plant biomass, species diversity, and their influencing factors in a desert steppe of northwestern China under long-term changing precipitation
WANG Xiao-Yue1, XU Yi-Xin2, LI Chun-Huan2, YU Hai-Long2, HUANG Ju-Ying1,*()

图6. 降水量变化下荒漠草原植物多样性与土壤因子的冗余分析。
D, Simpson优势度指数; H′, Shannon-Wiener多样性指数; R, Patrick丰富度指数; E, Pielou均匀度指数。AP, 速效磷含量; C:Nm, 微生物生物量碳含量:氮含量; EC, 电导率; MBP, 微生物生物量磷含量; NH+4-N, 铵态氮含量; NO-3-N, 硝态氮含量; N:Pm, 微生物生物量氮含量:磷含量; SA, 蔗糖酶活性; T, 温度; UA, 脲酶活性; WC, 含水量。

Fig. 6. Redundancy analysis of plant diversity and soil factors in the studied desert steppe under long-term changing precipitation.
D, Simpson dominance index; H′, Shannon-Wiener diversity index; R, Patrick richness index; E, Pielou evenness index. AP, available phosphorus content; C:Nm, microbial biomass carbon content:nitrogen content; EC, electrical conductivity; MBP, microbial biomass phosphorus content; NH+4-N, ammonium nitrogen content; NO-3-N, nitrate nitrogen content; N:Pm, microbial biomass nitrogen content: phosphorus content; SA, sucrase activity; T, temperature; UA, urease activity; WC, water content.