Diversity and Dynamics of Soil Free-Living Nematode Populations in a Mediterranean Agroecosystem

LIANG Wen-Ju; I.LAVIAN; S.PEN-MOURATOV; Y.STEINBERGER

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Diversity and Dynamics of Soil Free-Living Nematode Populations in a Mediterranean Agroecosystem

机译：地中海农业生态系统中自由生活的线虫种群的多样性和动态。

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To determine the effect of agricultural management on the dynamics and functional diversity of soil nematode communities in a carrot field at Kibbutz Ramat Hakovesh, Israel, soil samples from 0-10 cm and 10-20 cm depths were collected during the growing season of carrot. Indices were used to compare and assess the response of soil free-living nematode communities to agricultural management. Eighteen nematode families and 20 genera were observed during the growing period, with Cephalobus, Rhabditidae, Aphelenchus, Tylenchus, and Dorylaimus being the dominant genera/families.During the planting, mid-season and post-harvest periods the total number of nematodes at both depths was significantly lower (P ＜ 0.01) in the carrot treatment than in the control plots, while during the harvest period at both depths total nematodes and bacterivores were significantly higher in the treatment plots (P ＜ 0.01). The values of the maturity index (MI) at both depths were found to be significantly lower in the treatment plots than in the control plots during the pre-planting period (P ＜ 0.05). Overall, WI, MI and PPI were found to be more sensitive indicators than other ecological indices for assessing the response of nematode communities to agricultural management in a Mediterranean agroecosystem.

机译：为了确定农业管理对以色列基布兹拉马特·哈科维什（Kibbutz Ramat Hakovesh）胡萝卜田中土壤线虫群落的动态和功能多样性的影响，在胡萝卜的生长季节中，收集了0-10 cm和10-20 cm深度的土壤样品。指标用于比较和评估土壤中生活的线虫群落对农业管理的响应。在生长期中观察到18个线虫科和20个属，其中以头虫，Rhabditidae，Aphelenchus，Tylenchus和Dorylaimus为主要属/科。胡萝卜处理的深度明显低于对照样地（P ＜0.01），而在收获期，在两个深度上，处理样地的总线虫和噬菌体均明显高于对照样地（P ＜0.01）。发现在种植前两个时期，在两个深度上的成熟度指数（MI）值均显着低于对照地块（P ＜0.05）。总体而言，WI，MI和PPI被认为是比其他生态指标更敏感的指标，用于评估地中海农业生态系统中线虫群落对农业管理的反应。

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《土壤圈（英文版）》 |2005年第2期|204-215|共12页
作者
LIANG Wen-Ju; I.LAVIAN; S.PEN-MOURATOV; Y.STEINBERGER;
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作者单位

Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 52900 (Israel);

Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016 China;

Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 52900 (Israel);

Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 52900 (Israel);

Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 52900 (Israel);

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收录信息中国科学引文数据库(CSCD);中国科技论文与引文数据库(CSTPCD);
原文格式 PDF
正文语种 chi
中图分类
关键词
agricultural management; carrot-growing season; diversity; maturity index; nematode community;

机译：农业管理;胡萝卜生长季节;多样性;成熟度指数;线虫群落;

Diversity and Dynamics of Soil Free-Living Nematode Populations in a Mediterranean Agroecosystem

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