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增加水分与养分对克隆植物羊柴自然种群繁殖权衡的影响 被引量:8
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作者 朱雅娟 阿拉腾宝 +1 位作者 董鸣 黄振英 《植物生态学报》 CAS CSCD 北大核心 2007年第4期658-664,共7页
羊柴(Hedysarum laeve)是豆科多年生半灌木,在自然条件下可以同时进行有性繁殖和克隆繁殖。该文在野外条件下研究了不同水平的水分和养分处理对羊柴种群的繁殖权衡的影响。结果表明,与对照相比,增加一定量的水分处理显著减少了花和荚果... 羊柴(Hedysarum laeve)是豆科多年生半灌木,在自然条件下可以同时进行有性繁殖和克隆繁殖。该文在野外条件下研究了不同水平的水分和养分处理对羊柴种群的繁殖权衡的影响。结果表明,与对照相比,增加一定量的水分处理显著减少了花和荚果的生物量;显著增加了克隆分株枝的生物量,显著减少了分株根茎的生物量,但没有影响其它部分的生物量。增加一定量的水分会抑制有性繁殖,改变生物量对克隆繁殖分株各部分的分配比例。与对照相比,增加一定量的养分能够促进有性繁殖,抑制克隆繁殖。 展开更多
关键词 羊柴 有性繁殖 克隆繁殖 养分 水分 生物量分配
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Major advances in plant ecology research in China (2020)
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作者 Wen-Hao Zhang Yunhai Zhang Xingguo Han 《Journal of Plant Ecology》 SCIE CSCD 2021年第5期995-1001,共7页
Plant ecologists are interested in dissecting the relationships between plants and their abiotic(physicochemical)and biotic environments.Plants assimilate carbon dioxide(CO2)and produce oxygen(O2),which are essential ... Plant ecologists are interested in dissecting the relationships between plants and their abiotic(physicochemical)and biotic environments.Plants assimilate carbon dioxide(CO2)and produce oxygen(O2),which are essential for our lives.Unlike animals,plants are sessile in nature and cannot physically escape predators,and are frequently exposed to changing environments,e.g.the availability of water,temperature,light,CO2,nutrients,herbivore and pathogen,during their life cycles.Plants have evolved highly plastic and resilient strategies to tolerate and withstand the variable environmental dynamics.The environments where plants grow are also reshaped and can influence plant traits,performances and functions.Plants often live in a community and have to share/compete resources with other plants in the community.Therefore,plants together with their surrounding environment control water and biogeochemical cycles at the ecosystem scale providing ecosystem functioning and services to support and transform the earth system.There are diverse ecosystems with many distinct vegetation types in China.How these ecosystems respond and adapt to the changing environments is a main theme of contemporary plant ecology.Scientists in China have made great achievements on the topic in 2020 as evidenced by publications in highly regarded international journals.Here,we comprehensively summarized the major progresses of plant ecology research in 2020. 展开更多
关键词 植物生态学 中国科学院 华南植物园 科技成果 国家重点研发计划 植物研究所 科技论文 资源研究所
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