Results 31 to 40 of about 33,994 (155)
Conservation Biology, EarlyView.Abstract Modeling species distributions in dynamic pelagic environments remains challenging, particularly for wide‐ranging and highly mobile species when there is limited guidance on model performance. This limitation constrains the effective use of species distribution models (SDMs) in marine conservation, where robust and transferable predictions are
E. Pasanisi +32 more
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Shuitu Baochi Xuebao, 2005 采用实验室培养试验研究了阿特拉津除草剂对土壤微生物生态特征的影响。结果表明：阿特拉津除草剂10mg／kg浓度处理释放的CO2与对照无明显差异，根据危害系数法的分级方法，其属于无实际危害级农药；阿特拉津除草剂10mg／kg浓度处理在初始阶段，明显降低土壤微生物生物量碳和微生物生物量氮，随培养时间推移土壤微生物生物量碳和生物量氮有所恢复，随后又有所下降，30d后土壤微生物生物量变化趋于平缓；阿特拉津除草剂对土壤微生物多样性产生一定影响．其影响随培养时间而异 ...
捌已斌 徐建民 尚鹤 张超兰
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Shuitu Baochi Xuebao, 2018 分析了生物质炭添加对红壤性水稻土理化性状、重金属含量及微生物生物量的影响。通过田间小区长期定位试验，一次性施入不同量生物质炭（0，10，20，30，40 t/hm2），于2017年9月采集各处理表层土样（0—15 cm），研究土壤理化性状、重金属含量及微生物生物量的变化。结果表明：生物质炭添加对土壤理化性状、重金属含量及微生物生物量均有显著影响。与对照相比，供试土壤的pH、EC和有机质含量随生物质炭添加量的增加而增大，增幅分别为5.11%~18.43%，37.62%~104.31%和1.72%~22 ...
郭碧林 +6 more
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Shuitu Baochi Xuebao, 2022 通过控制不同生物炭添加量和降水量,分析土壤理化性质及黑麦草(Lolium perenne L.)的各项生长指标,探究不同添加量的生物炭对缺水植物生长促进的直接与间接作用。结果表明:生物炭的添加可以提高土壤的田间持水率、土壤中速效磷的含量以及土壤的pH;干旱条件下,增加生物炭的用量能促进黑麦草植株的增高,但高剂量的生物炭抑制黑麦草的生长;生物炭加入并不能持续性的保持土壤中的水分,高浓度(>15%)的生物炭反而增大土壤中水分的流失,但由于生物炭中钾元素为植物对抗干旱提供了必要条件。适当添加生物炭(5 ...
朱自洋 +5 more
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Structured decision‐making as a framework to incorporate social equity into conservation decisions
Conservation Biology, EarlyView.Abstract Many conservation challenges require negotiating trade‐offs between the needs of different actors. Global frameworks such as the Kunming–Montreal Global Biodiversity Framework explicitly call for diverse participation and social equity in conservation decision‐making.
Emily Massingham +2 more
wiley +1 more source
添加莠去津的土壤中微生物生物量碳、氮、磷对外源有机无机物质的动态响应
Shuitu Baochi Xuebao, 2004 研究了添加有机、无机营养物质对外加除草剂莠去津土壤(每1g土中含莠去津10mg/)中微生物生物量碳、氮和磷的动态变化过程。研究结果表明,在整个培养过程中,仅加莠去津的土壤中微生物生物量碳、氮、磷的含量均显著降低,与对照相比,分别平均降低了13.5%,10.1%,20.0%。但是,施用有机、无机营养物质的处理,土壤微生物生物量碳、氮、磷的含量均显著增加。不同处理对微生物生物量碳、氮的含量影响程度依次为:腐熟猪粪>紫云英>水稻秸秆腐熟猪粪>N、P肥配施>单施N肥>单施P肥。而对微生物生物量磷含量的影响则为 ...
张超兰 徐建民
doaj
Shuitu Baochi Xuebao, 2021 土壤酶对森林生态系统生物化学过程有重要作用，能快速反映土壤环境（如养分含量和有效性）的变化。采伐剩余物是林地土壤养分的重要来源，其处理方式会对森林土壤的养分含量和有效性产生影响。为探讨采伐剩余物不同处理方式对杉木幼林土壤酶活性的影响，在福建省三明市格氏栲自然保护区40年生的杉木成熟林采伐迹地上对采伐剩余物进行不同处理（保留RR、火烧RB、去除R）并种植杉木幼林，通过采集0-10，10-20 cm土层土壤，对6种胞外酶活性进行研究。结果表明：（1）采伐剩余物处理4年后，相比保留处理 ...
李啸灵 +4 more
doaj
Comprehensive and representative conservation planning for biodiversity of ice‐free Antarctica
Conservation Biology, EarlyView.Abstract Antarctica is designated as a natural reserve devoted to peace and science, with Antarctic Specially Protected Areas (ASPAs) serving as the primary instrument for area‐based biodiversity protection. However, the existing ASPA network lacks the comprehensiveness and representativeness required under Annex V, Article 3(2), of the Madrid Protocol.
Wen Wen +3 more
wiley +1 more source
Intact coastal nursery rearing amid climate‐driven phenological shifts in threatened salmon
Conservation Biology, EarlyView.Abstract Literature linking phenology to climate has proliferated in recent decades and shows that climate change has reorganized seasonal opportunities worldwide. However, this literature often quantifies changes in point measures of timing (e.g., beginnings and peaks) without context about duration (e.g., rearing season length) or performance (e.g ...
Stuart H. Munsch +8 more
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Subspecies taxonomy reflects social and geographic patterns of taxonomic effort in tetrapods
Conservation Biology, EarlyView.Abstract Subspecies have been used in conservation biology to account for intraspecific patterns in genetic diversity, which is crucial to long‐term population viability. Although over 3200 subspecies are currently assessed by the International Union for Conservation of Nature Red List, their biological relevance remains controversial.
Jhonny J. M. Guedes +3 more
wiley +1 more source