Results 31 to 40 of about 5,405 (176)
Shuitu Baochi Xuebao, 2020 选取南方典型母质发育耕作土紫泥田和麻砂泥，通过添加不同浓度梯度的外源Cd （0，0.5，2.0，10.0，20.0 mg/kg）进行盆栽试验，并结合傅里叶红外与X射线衍射等手段，研究了象草在土壤Cd胁迫下的耐受能力及修复效果。结果表明：紫泥田与麻砂泥中象草对Cd的耐性指数为0.65~0.79，均表现出较好的耐性；外源Cd浓度为0，0.5，2.0 mg/kg时象草富集系数均大于1，表现出较好的Cd富集性；象草转运系数为0.60~0.84，属于非Cd超富集植物，但因地上部分生物量巨大 ...
覃建军 +6 more
doaj
Petroleum Exploration and Development, 2010 Most oil fields in China are reservoirs with strong heterogeneity and relatively viscous crude in continental sediments. Due to the low waterflooding oil recovery factor, there is still a great potential to improve the oil recovery.
Han Dakuang
doaj +1 more source
, 1998 对５１年生甜槠群落Ｃａ、Ｍｇ含量及其生物循环研究表明，甜槠群落现存量中，Ｃａ、Ｍｇ总量分别为１０２９．９６和２３１．３４ｋｇ·ｈｍ－２；其中地上部分分别为８０１．４０和１５９．６８ｋｇ·ｈｍ－２，地下部分分别为２２８．５６和７１．６６ｋｇ·ｈｍ－２．该群落Ｃａ、Ｍｇ生物循环中，年吸收量分别为６３．１７和１８．６８ｋｇ·ｈｍ－２，年存留量分别为３１．７７和１１．４１ｋｇ·ｈｍ－２，年归还量分别为３１．４０和７．２７ｋｇ·ｈｍ－２；Ｃａ、Ｍｇ的富集率分别为１．６６和２ ...
何建源 +5 more
core
In Situ Uniform Lithium Enrichment for Dense, High‐Performance LLZO Solid Electrolytes
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT A major challenge in garnet‐type Li7La3Zr2O12 (LLZO) system all‐solid‐state electrolytes is the high porosity that typically remains after sintering, which compromises ionic conductivity and degrades battery cycling performance. To address this, we propose an innovative strategy to achieve uniform lithium enrichment on the surface of ...
Yi‐Yang Xiao +8 more
wiley +1 more source
High nitrogen enrichment buffers plant photosynthesis against herbivory damage
Functional Ecology, Volume 40, Issue 1, Page 229-238, January 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Herbivorous insects and nitrogen deposition are key drivers of ecosystem productivity under global change. However, their combined effects on plant photosynthesis, particularly during insect outbreaks, remain poorly understood in natural ecosystems.
Yongqiang Zhang +6 more
wiley +1 more source
, 1997 讨论了中亚热带武夷山先峰岭５１龄甜槠Ｃａｓｔａｎｏｐｓｉｓｅｙｒｅｉ（Ｃｈａｍｐ．ｅｘＢｅｎｔｈ．）Ｔｕｔｃｈ．群落的氮、磷元素的累积和循环．测定结果表明：群落现存量中含有的氮、磷总量分别为１５５．５４９ｇ／ｍ２和５．５３５ｇ／ｍ２，其中地上部分别为１２７．１１７ｇ／ｍ２和４．４６３ｇ／ｍ２；地下部分别为２８．４３２ｇ／ｍ２和１．０７２ｇ／ｍ２．甜槠群落氮、磷元素的生物循环中，年吸收量分别为９．４５８ｇ／ｍ２．ａ和０．４３４ｇ／ｍ２．ａ，存留量分别为４．４８８ｇ／ｍ２．ａ和０．１９９ｇ／ｍ２．ａ ...
何建源 +5 more
core
Wildlife Letters, Volume 3, Issue 4, Page 161-172, December 2025.Swamp rabbit (Sulvilagus aquaticus) in southeast Missouri is increasing and expanding, with occupancy probabilities of 0.66 in 2010–2012 and 0.79 in 2021–2022. ABSTRACT Swamp rabbits (Sylvilagus aquaticus) are a bottomland hardwood specialist that have experienced range contraction at the northern and western extents of their range.
Thanchira Suriyamongkol +6 more
wiley +1 more source
NUTRIENT CYCLING OF N AND P BY A MIXED FOREST OF CUNNINGHAMIA LANCEOLATA AND TSOONGIODENDRON ODORUM IN SUBTROPICAL CHINA [PDF]
, 2002 通过对福建三明 2 7年生杉木 (Cunninghamialanceolata) 观光木 (Tsoongiodendronodorum)混交林 (混交比例2 :1)及杉木纯林群落N、P养分循环进行为期 2年的研究。结果表明 ,混交林中杉木和观光木地上各组分的N、P含量大小均为叶 >活枝 (或皮 ) >枯枝 >干 ,而根系的则随径级的减小而增大 ,且观光木各组分的N含量均高于杉木的 ;混交林群落的N、P总积累量达 5 85 .2 2 3kg·hm-2 和 12 8.784kg·hm-2 ,分别是纯林群落的
何宗明 +5 more
core
The Future of AI in the GCC Post‐NPM Landscape: A Comparative Analysis of Kuwait and the UAE
Politics &Policy, Volume 53, Issue 6, December 2025.ABSTRACT Comparative evidence of how two Gulf Cooperation Council (GCC) states translate artificial intelligence (AI) ambitions into post–New Public Management (post‐NPM) outcomes are scarce because most studies focus on Western democracies. To fill this gap, we examine constitutional, collective choice, and operational rules that shape AI uptake in ...
Mohammad Rashed Albous +2 more
wiley +1 more source
水土保持生态工程建设中水资源的合理配置与利用——关于集雨节灌建设中几个问题的探讨
Shuitu Baochi Xuebao, 2002 论述了集雨节灌在实现农业现代化、农民脱贫致富、水资源可持续利用、减少黄河下游泥沙淤积、水土保持生态工程建设、水利建设等方面的作用 ;集雨节灌建设中应对地表水和地下水统筹考虑、合理配置 ;雨水集蓄工程建设必须同时考虑集水含沙量 ,提出了一种采用拦沙原理设计沉沙池的方法 ,与采用沉沙原理设计的沉沙池可以进行优化比较设计 ;针对集雨节灌工程年费用计算时缺乏有关设施、设备的折旧年限、年折旧率、年大修费率的现状 ,提出了有关设施、设备的折旧年限、年折旧率、年大修费率 ,供年费用计算时参考。
李怀有 赵安成 脱中平 白文瑷
doaj +2 more sources