Effects of Interplanting Medicinal Herbs on Runoff, Sediment and Nitrogen and Phosphorus Losses in Young Oil Tea Plantation on Red Soil Sloping Field [PDF]
[Objective] To investigate the effects and applicability of different intercropping patterns of medicinal herbs on water, soil, and nutrient losses in young oil tea gardens on red soil slopes. [Methods] Runoff plot experiments were carried out in Jiangxi
DUAN Jian +4 more
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Zhejiang Daxue xuebao. Lixue ban, 2005 比较了杭州植物园人工湿地中7种植物的生长和营养吸收特性.种类包括美人蕉(Conna indica)、香蒲(Typha augustifolia)、 芦苇(Phragmites australis)、紫露草(Tradescantia reflexa)、斑茅(Saccharum urundinaceum)、黑麦草(Lolium perenne)和灯芯草(Juncus effusus).这些植物生长在用于处理植物园观鱼池轻度营养化水的砂砾床复合垂直流人工湿地系统中.2002年7月中旬 ...
JIANGYue-ping(蒋跃平) +6 more
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Shuitu Baochi Xuebao, 2004 对刚果12号桉无性系W5人工林营养元素积累、分布和生物循环进行了研究。结果表明，刚果桉W5不同组分的营养元素含量存在差异。树叶的主要营养元素N、P、K、Ca、Mg含量均较高，树皮的Ca、K含量较高，树干主要营养元素的含量均较低；刚果桉W5人工林主要营养元素年净积累量随林龄增长而增加，2年生的主要营养元素净积累量的增幅最大；刚果桉W5人工林的N、K或Ca的年吸收量与总存留量较高，Mg次之，P最小。植后第5年，Ca的吸收与存留增加明显；刚果桉W5人工林归还林地的主要营养元素比例很低，2 ...
钟继洪 李淑仪 蓝佩玲 廖新荣 廖观荣
doaj
Comparison of the activities of digestive enzymes in the intestinal brush border membrane between the mudskipper Boleophthalmus pectinirostris and Chinese black sleeper Bostrichthys sinensis [PDF]
, 2006 采用酶学分析的方法,研究了大弹涂鱼和中华乌塘鳢肠刷状缘膜的麦芽糖酶、蔗糖酶、乳糖酶、海藻糖酶、纤维二糖酶、碱性磷酸酶、氨基肽酶和γ-谷氨酰转肽酶等8种消化酶的活性。结果表明:1)大弹涂鱼肠Ⅱ刷状缘膜的麦芽糖酶、蔗糖酶、乳糖酶、海藻糖酶和纤维二糖酶等5种二糖酶的比活力均显著高于肠Ⅰ和肠Ⅲ ...
吴仁协 +3 more
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Effects of Coated Potassium Chloride on Soil Nutrient Supply Intensity, Maize Yield and Quality [PDF]
[Objective] Controlled release of potassium chloride can achieve slow release of potassium ions synchronized with crop absorption, while ensuring the effectiveness of potassium ions in the soil, meeting the demand for potassium in the later stage of crop
CHEN Qi +13 more
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Physiological responses of rice to increased day and night temperatures [PDF]
, 2017 A more rapid increase in night-time temperature compared with day-time temperature and the increased frequency of heat waves associated with climate change present a serious threat to rice (Oryza sativa L.) production and food security.
Shi, Wanju
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Shuitu Baochi Xuebao, 2019 磷在土壤中易被固定沉淀，在植物磷利用率低的情况下，过度施肥会造成磷肥浪费，可能通过地表径流、地下水溶解等方式，造成水体富营养化产生面源污染，对人类生产生活造成较大影响。丛枝菌根真菌（arbuscular mycorrhizal fungi，AMF）和植物结合所形成的共生菌根可以显著增强植株对磷的吸收利用。通过AMF可以提高宿主植株对磷的吸收转运的特性，从AMF促进植株对磷元素的摄取机制、AMF促进植物磷摄取分子机理 ...
薛英龙 +7 more
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Metabolomics Analysis of Five Types of Wangdu Chili Peppers Based on HPLC and GC-MS [PDF]
To analyze the metabolic differences in Wangdu peppers, this study employed high-performance liquid chromatography (HPLC) and gas chromatography-mass spectrometry (GC-MS) to detect chemical components and perform non-targeted metabolomics analysis on ...
Jianwei MAO +5 more
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Contents of Some Mineral Elements and Their Resorption Efficiencies in Casuarina equisetifolia Branchlets Across a Coastal Gradient [PDF]
, 2011 对福建东山赤山林场不同海岸梯度上短枝木麻黄小枝中的钾(k)、钙(CA)、镁(Mg)、钠(nA)、铁(fE)、锰(Mn)和锌(zn)元素含量及其再吸收率动态进行了研究.结果表明,海岸梯度对短枝木麻黄小枝中各元素含量及其再吸收率均具有显著影响.在各海岸梯度上,k再吸收率为正值,且基干林带的再吸收率显著低于其它样地,fE和zn为负值,CA、Mg和nA再吸收率在防护林带前沿为负值,而在后沿林为正值,Mn则相反.这表明,基干林带严重的环境胁迫显著降低了短枝木麻黄小枝的养分再吸收率.短枝木麻黄成熟小枝中的k ...
叶功富 +4 more
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Properties of ecological environment damage and their mechanism of restoration in arid and semi-arid coal mining area of western China [PDF]
The focus of coal development in China has been strategically shifted westward. That realize green mining of coal resources and coordinated ecological development becomes one of the important measures to ensure national energy security.
Suping PENG, Yinli BI
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