کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8470185 | 1549920 | 2018 | 33 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Phosphorus addition reduces the competitive ability of the invasive weed Solidago canadensis under high nitrogen conditions
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
بوم شناسی، تکامل، رفتار و سامانه شناسی
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چکیده انگلیسی
Changes in resource supply ratios affect interspecific competition; however, the effects on the plant invasions are still relatively unknown. To determine the effects of phosphorus (P) availability on the competitive ability of the invasive herb Solidago canadensis in an elevated P environment, we conducted a greenhouse P addition experiment. The invasive herb S. canadensis and the native plant Pterocypsela laciniata were grown in both monoculture and mixture with P addition under an ambient N condition (P+Nâ) and under a high N condition (P+N+), using ambient N and P conditions (PâNâ) as a control. The growth of P. laciniata was significantly inhibited by S. canadensis under the ambient conditions. The P+Nâ treatment promoted the growth of P. laciniata, but did not promote the growth of S. canadensis. The competition between S. canadensis and P. laciniata was alleviated under the ambient N condition after P addition. The N requirement of P. laciniata was higher than that of S. canadensis, and P. laciniata outcompeted S. canadensis under the P+N+ treatment. We concluded that P addition may reduce the competitive ability of the invasive weed S. canadensis, especially under a high N condition. The ratio of N and P might be a critical factor for determining the competitive abilities of the invasive herb S. canadensis and the native plant P. laciniata.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Flora - Volume 240, March 2018, Pages 68-75
Journal: Flora - Volume 240, March 2018, Pages 68-75
نویسندگان
Ling-Yun Wan, Shan-Shan Qi, Chris B. Zou, Zhi-Cong Dai, Bin Zhu, Yi-Ge Song, Dao-Lin Du,