Results 21 to 30 of about 1,253 (174)
, 2014 四川冬水田的发展史大致可分为清代的兴起与扩展,民国的继承与发展,新中国的改造与缩减三大阶段。水稻种植规模的大小、劳动生产率的高低、水利设施的多少均是影响冬水田发展的因素之一。以往提高农业产出的是改造冬水田的动因;现今提倡恢复冬水田又是出于其水利、生态湿地价值的考虑。冬水田作为一项大规模的水利工程,其之于四川农业 ...
陈桂权
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Integrative Conservation, Volume 4, Issue 4, Page 546-554, December 2025.Desertification is increasing in the Brazilian Semiarid, leading to loss of species and ecosystem services, while precise data on biodiversity distribution and trends are lacking. Public engagement in scientific projects can improve ecosystem protection.
Lucas Rodriguez Forti +3 more
wiley +1 more source
土壤呼吸作用时空动态变化及其影响机制研究与展望. [PDF]
, 2009 测定不同陆地生态系统土壤呼吸速率及其时空波动,阐明其影响因子,对于全球碳素平衡预算和全球变化潜在效应估计是最为基本的数据。然而,有关土壤呼吸作用变异性及其影响因素的知识仍存在局限性,一些关键的过程和机制还有待阐明。该文综述了近年来土壤呼吸作用时空动态规律、影响机制和模拟方面的研究进展,指出环境因子和生物因子共同驱动着土壤呼吸作用的时间动态变化;土壤呼吸作用在不同时间尺度上还具有明显的空间异质性,这主要是植被覆盖、根系分布、主要的环境因素和土壤特性空间分布的异质性造成的 ...
周广胜., 韩广轩
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The Impact of Mixed Application of Modified Straw Biochar and Organic Fertilizer on Soil Water Retention and Fertility Maintenance in the Loess Hilly Dry Area [PDF]
[Objective] This study aimed to investigate the effects of different modified corn straw biochars on the water retention and fertilizer conservation capacity of arid loess soil and their effects on crop growth.
CHANG Fangling +5 more
core +1 more source
Functional Ecology, Volume 39, Issue 10, Page 2889-2904, October 2025.Read the free Plain Language Summary for this article on the Journal blog. Abstract In the Southwest Australian Biodiversity Hotspot, the greatest plant species diversity tends to occur on the most phosphorus (P)‐impoverished soils. Many plant species in this P‐impoverished environment release root carboxylates that mobilise soil P which is a more ...
Xue Meng Zhou +5 more
wiley +1 more source
, 2009 生物地理学研究是生物学和地理学交叉非常明显的部门自然地理学学科,它具有很强的基础研究特点,同时研究成果也具有很大的应用潜力。近年来,我国生物地理学基础研究在国家自然科学基金委等部门的支持下,在山地植被与地理环境、干旱半干旱区植被与地理环境、植物区系、植物物候、土壤动物与土壤生态功能、土壤生物结皮等方面开展了全面而深入的研究。同时拓展了传统生物地理学的研究方向,在植物地理学与全球变化、植物地理学与生物多样性保护、植物地理学与生态系统管理等方面也开展了大量研究。尤为可贵的是干旱半干旱区土壤生物结皮研究 ...
冷疏影 +8 more
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Functional Ecology, Volume 39, Issue 8, Page 2149-2169, August 2025.Read the free Plain Language Summary for this article on the Journal blog. Abstract Plants assemble beneficial rhizosphere microbiomes through a ‘cry for help’ mechanism upon pathogen or insect herbivore attack. The arbuscular mycorrhizal fungi (AMF) can influence the composition of microbial communities in the plant rhizosphere. However, their impacts
Yingde Li +6 more
wiley +1 more source
Ecological Solutions and Evidence, Volume 6, Issue 3, July–September 2025.Urban agriculture is in an intermediate state between traditional urban green spaces and conventional rural farms in terms of environmental impacts, so that its contribution to urban sustainability requires complementarity with other green spaces. Abstract As cities expand, they encroach on agricultural land, impacting food production and natural ...
Zeyu Li +8 more
wiley +1 more source
水土保持措施对土壤物理性状的影响——以黄土高原水土保持世界银行贷款项目区为例
Shuitu Baochi Xuebao, 2003 通过对黄土高原水土保持世行贷款项目实施后土壤物理性状变化的分析,了解不同水土保持 措施对土壤物理性状的影响.结果表明,水土保持措施的实施,使砂壤土的物理性粘粒逐渐 增加,物理性砂粒相应减少,土壤容重降低,孔隙度增大,改善了土壤结构;同时以延河项 目区人工种草为例,经计算消除降水影响后,所得水保措施对土壤含水量的影响量达2.35% .
魏义长 +7 more
doaj +2 more sources
Crop Morphogenesis and Solutions Under Heavy Metal Pollution [PDF]
, 2016 在重金属污染愈发严重的背景下,探索出保障污染地区的农业生产水平可持续发展的技术,是保障粮食生产安全亟需解决的重要问题.通过综述农作物对重金属胁迫的形态建成响应机制与实践中的农艺管理技术手段,总结在重金属污染区域提高粮食产量的主要方法.重金属影响下的作物形态建成具有深刻的遗传基础和复杂的生理机制,这就决定了作物对重金属的响应受到作物类型与重金属种类的影响.通过对作物形态建成的更深入研究,建立一套从品种选择到田间管理的应对措施,可以为农业安全生产提供持久有效的保障.In consideration of ...
严重玲 +4 more
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