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中国农学通报 ›› 2007, Vol. 23 ›› Issue (7): 185-185.

所属专题: 生物技术 园艺

• 林学 园艺 园林 • 上一篇    下一篇

不同林龄杨树人工林对土壤微生物状况和酶活性的影响

高永健,袁玉欣,刘四维,王颖,刘琳琳   

  • 出版日期:2007-07-05 发布日期:2007-07-05

The Effects of Different Stand Ages on Microbe Populations and Enzyme Activities

Gao Yongjian, Yuan Yuxin, Liu Siwei, WangYing, Liu Linlin   

  • Online:2007-07-05 Published:2007-07-05

摘要: 对文安县不同林龄的中林-46(Zhonglin-46)杨人工林的土壤微生物和酶活性进行了测定分析。结果表明不同林龄的土壤微生物和土壤酶活性均存在差异,0~20cm的表土层明显高于20~40cm的亚表层和40~60cm深层。在测定时间内(2006年4月—11月)各个林龄的土壤微生物总数在春季较高,夏季较低,秋季又增高,总体上表现为高-低-高的变化。土壤微生物和酶活性之间表现出较高的相关性,土壤微生物的总数和酶活性随着取样深度的增加均表现为逐渐降低。

关键词: 水稻, 水稻, 稻瘟病菌, 培养基, 生长速率

Abstract: The study has undertaken to investigate the soil microbe populations and enzyme avtivities at different soil layers in poplar Zhonglin-46 plantation communities of Wenan county.The soil microbe populations and enzyme activites at 0~20cm depth were higher than that of 20~40cm and 40~60cm.During the experiment time,from Apr to Nov in 2006 ,the total of the microbe populations and enzyme activities had shown a trend of high-low-high .There is a good correlation between the microbial populations and enzyme activities. With the depth added,the microbe populations and enzyme activities declined continually.

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