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当前位置: 首页 > 文章 > 山竹岩黄蓍固沙群落对土壤养分及生物活性的改良效应 应用生态学报 2007,18 (8) 1739-1744
Position: Home > Articles > Amelioration effect of sand-fixing Hedysarum fruticosum plantations on soil nutrient contents and biological activities Chinese Journal of Applied Ecology 2007,18 (8) 1739-1744

山竹岩黄蓍固沙群落对土壤养分及生物活性的改良效应

作  者：
曹成有;蒋德明;朱丽辉;滕晓慧;富瑶;崔振波;高菲菲;高恩亮
单  位：
中国科学院沈阳应用生态研究所;辽宁林业职业技术学院;东北大学理学院
关键词：
土壤生物活性;土壤酶;土壤微生物生物量;土壤养分;固沙群落;山竹岩黄蓍
摘  要：
以半流动沙丘为对照,对5、10和22年生山竹岩黄蓍人工固沙群落不同层次(0~10、10~20和20~30cm)土壤的养分状况、微生物生物量和土壤酶活性进行了对比研究.结果表明:采用山竹岩黄蓍固定流沙后,随着群落年龄的增长,土壤中C、N、P、K含量及生物活性均明显提高.其中,0~10cm土层的增长幅度显著高于10~30cm土层.0~30cm土层中C/N由7.3增加到8.5;土壤微生物生物量碳、氮、磷含量以及土壤脲酶、磷酸单酯酶、蔗糖酶、蛋白酶、脱氢酶、硝酸还原酶和多酚氧化酶的活性均有所提高.其中,0~10cm土层中蔗糖酶的活性是对照的49.7~284.5倍.土壤微生物生物量碳、氮、磷分别与土壤有机碳、全氮、全磷以及微生物生物量与酶活性之间存在显著的正相关关系.
译  名：
Amelioration effect of sand-fixing Hedysarum fruticosum plantations on soil nutrient contents and biological activities
作  者：
CAO Cheng-you1, JIANG De-ming2, ZHU Li-hui3, TENG Xiao-hui1, FU Yao1, CUI Zhen-bo1, GAO Fei-fei1, GAO En-liang1 (1School of Sciences, Northeastern University, Shenyang 110004, China; 2Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China; 3Liaoning Forestry Technology College, Shenyang 110101, China).
关键词：
soil biological activity; soil enzyme; soil microbial biomass; soil nutrient; sand-fixing community; Hedysarum fruticosum
摘  要：
With adjacent semi-moving dune as the control, this paper studied the effects of 5-, 10-and 22-year old Hedysarum fruticosum plantations on the nutrient status, microbial biomass, and enzyme activities at the soil depths 0-10, 10-20 and 20-30 cm. The results showed that with the establishment of H. fruticosum plantation on moving dune, soil C, N, P and K contents and biological activities increased obviously with the increasing age of the plantation, and the increment was much higher at 0-10 cm than at 10-20 and 20-30 cm. At 0-30 cm, soil C/N increased from 7.3 to 8.5, and microbial biomass C, N and P as well as the activities of urease, protease, saccharase, phosphomonoesterase, dehydrogenase, polyphenol oxidase and nitrate reductase all increased. Among the test enzyme activities, saccharase activity had the most significant increase, with its value at 0-10 cm being 49.7-284.5 times of the control. There were significant positive correlations between soil microbial biomass C, N and P and organic C, total N and total P, respectively, and between soil microbial biomass and enzyme activities.

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