...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Spatio-temporal organization and biomass dynamics of plant communities in a dry tropical peri-urban region: deterministic role of alien flora in anthropo-ecosystems
【24h】

Spatio-temporal organization and biomass dynamics of plant communities in a dry tropical peri-urban region: deterministic role of alien flora in anthropo-ecosystems

机译：干燥热带城市地区植物群落的时空组织和生物质动态：外星植物在人类生态系统中的确定性作用

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The species nativity, growth form, habit, invasion status, aboveground biomass (AGB) and belowground biomass (BGB) distribution and soil characteristics across six diverse habitat conditions were studied in a peri-urban region in Indian dry tropics to understand their deterministic impact on vegetation structure. Eighty-seven plant species, predominantly annuals (67%), belonging to 28 angiosperm families were recorded. Among them, 89% were exotics (largest of American and Asian origins) and 48% of the exotics were invasives while 16% were naturalized. AGB of annuals was higher than perennials, but the difference in their BGB was insignificant. Compared to natives, the exotics had higher AGB and BGB. Among them, the AGB species of South America, Asia and the Indian subcontinent had higher AGB, but the order was reversed in case of BGB. Similarly, AGB of invasives was higher than natives, but they showed comparable BGB. 'Non-native annual forbs' were the most dominant functional groups in terms of both AGB and BGB. The ordination results varied with plant BGB and AGB. Canonical correspondence analysis indicated dominant role of exotic invasives (mainly of American and European origin) and significant influence of soil organic carbon (SOC) and total nitrogen on vegetation organization. At lower SOC, AGB and BGB were comparable for both native and exotics. However, with the increase in SOC, native AGB and BGB declined, whereas AGB of nonnative species increased. In conclusion, the study revealed large intrusion of alien floras into anthropoecosystems in Indian dry tropics, which significantly impacted structure and ecological processes both aboveground and belowground, as against better adaptation potential of the natives belowground.
机译：在印度干燥热带地区的一群城市地区研究了六种多种栖息地条件下的物种遗留，生长形式，习惯，入侵状态，地上生物量（AGB）和地下生物量（BGB）分布和土壤特征，以了解他们的确定性影响植被结构。记录了八十七种植物物种，主要是每年（67％），属于28个子植物家族。其中，89％的是市场（美国和亚洲最大的）和48％的外部基础是侵袭性，而16％的归化是归化的。年度agb的年度高于多年生，但其BGB的差异是微不足道的。与当地人相比，外部物质具有更高的AGB和BGB。其中，南美洲，亚洲和印度次大陆的AGB种类具有更高的agb，但在BGB的情况下，订单是逆转的。同样，AgB的侵入性高于当地物质，但它们显示出可比的BGB。 “非本土年度福尔斯福尔斯”是AGB和BGB方面最占主导地位的职能群体。植物BGB和AGB的顺序结果变化。规范对应分析表明异国情调的侵犯者（主要是美国和欧洲起源）和土壤有机碳（SoC）和总氮对植被组织的显着影响作用。在较低的SOC中，AGB和BGB对本地和外部的相当。然而，随着SOC的增加，Native AGB和BGB的下降，而非生物的AGB增加。总之，该研究揭示了外星植物植物的大量入侵印度干燥热带地区的蒽体系，这显着影响了地上和地下的结构和生态过程，以及地下的更好适应潜力。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号