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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5. 降水量变化下荒漠草原植物生物量与土壤因子的冗余分析。
Am, 草木樨状黄耆种群生物量; As, 猪毛蒿种群生物量; Ha, 阿尔泰狗娃花种群生物量; Lp, 牛枝子种群生物量; Pc, 白草种群生物量; PCB, 植物群落生物量。AP, 速效磷含量; C:Ps, 土壤碳含量:磷含量; MBP, 微生物生物量磷含量; NH4+-N, 铵态氮含量; NO3?-N, 硝态氮含量; PA, 磷酸酶活性; SA, 蔗糖酶活性; T, 温度; TN, 全氮含量; UA, 脲酶活性; WC, 含水量。

Fig. 5. Redundancy analysis of plant biomass and soil factor in the studied desert steppe under long-term changing precipitation.
Am, Astragalus melilotoides population biomass; As, Artemisia scoparia population biomass; Ha, Heteropappus altaicus population biomass; Lp, Lespedeza potaninii population biomass; Pc, Pennisetum centrasiaticum population biomass; PCB, plant community biomass. AP, available phosphorus content; C:Ps, soil carbon content: phosphorus content; MBP, microbial biomass phosphorus content; NH4+-N, ammonium nitrogen content; NO3?-N, nitrate nitrogen content; PA, phosphatase activity; SA, sucrase activity; T, temperature; TN, total nitrogen content; UA, urease activity; WC, water content.