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Large-scale interplant exchange of macromolecules between soybean and dodder under nutrient stresses
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作者 Jingxiong Zhang Shalan Li +9 位作者 Wenxing Li Zerui Feng Shuhan Zhang Xijie Zheng Yuxing Xu Guojing Shen Man Zhao Guoyan Cao Xuna Wu Jianqiang Wu 《Plant Diversity》 SCIE CAS CSCD 2024年第1期116-125,共10页
Parasitic plants and their hosts communicate through haustorial connections.Nutrient deficiency is a common stress for plants,yet little is known about whether and how host plants and parasites communicate during adap... Parasitic plants and their hosts communicate through haustorial connections.Nutrient deficiency is a common stress for plants,yet little is known about whether and how host plants and parasites communicate during adaptation to such nutrient stresses.In this study,we used transcriptomics and proteomics to analyze how soybean(Glycine max)and its parasitizing dodder(Cuscuta australis)respond to nitrate and phosphate deficiency(-N and-P).After-N and-P treatment,the soybean and dodder plants exhibited substantial changes of transcriptome and proteome,although soybean plants showed very few transcriptional responses to-P and dodder did not show any transcriptional changes to either-N or-P.Importantly,large-scale interplant transport of mRNAs and proteins was detected.Although the mobile mRNAs only comprised at most 0.2%of the transcriptomes,the foreign mobile proteins could reach 6.8%of the total proteins,suggesting that proteins may be the major forms of interplant communications.Furthermore,the interplant mobility of macromolecules was specifically affected by the nutrient regimes and the transport of these macromolecules was very likely independently regulated.This study provides new insight into the communication between host plants and parasites under stress conditions. 展开更多
关键词 CUSCUTA Mobile molecules Nutrient deficiency Host plant-parasitic plant interaction interplant transport Systemic signaling
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Benefit of Interplanting Sugarcane with Watermelon and Soybean 被引量:2
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作者 苏天明 陈燕丽 +4 位作者 苏利荣 李琴 秦芳 何铁光 李卓勇 《Agricultural Science & Technology》 CAS 2017年第8期1391-1395,共5页
This study was conducted to investigate the effects of interplanting of sugarcane with watermelon and soybean on agronomic traits, yields, quality and benefit of crops, so as to provide reference for extension of the ... This study was conducted to investigate the effects of interplanting of sugarcane with watermelon and soybean on agronomic traits, yields, quality and benefit of crops, so as to provide reference for extension of the interplanting mode of sugarcane with watermelon or soybean. There were 4 treatments: CK1 (sole planting of sugarcane, no fertilization), CK2 (sole planting of sugarcane, applying chemical fertilizers), T1 (interplanting sugarcane with watermelon, applying chemical fertilizers + cow dung), and T2 (interplanting sugarcane with soybean, applying chemical fertilizers + cow dung). The results showed that compared with CK2, the sugarcane yield of treatment T1 reached 2.5 t/hm2, the watermelon yield was 1.02 t/hm2, and the total economic benefit increased by 3090 Yuan/hm2; the sugarcane yield in treatment T2 decreased by 7.61 t/hm2 (but not significant), and the soybean yield was 0.35 t/hm2, and the total economic benefit increased by 720 Yuan/hm2; and the total sugar content in watermelon flesh was 8.59%, and the crude protein content in soybean was 36.15%, satisfying the quality indexes of the same agricultural products. Compared with sole planting of sugarcane, sugarcane plus watermelon or soybean interplanting mode improved economic benefit, treatment T1 showed economic benefit far higher than treatment T2, and is suitable for sugarcane regions with good water and fertilizer conditions and enough labor, and the T2 mode has simple operation, and is suitable for large-area extension. 展开更多
关键词 SUGARCANE interplantING WATERMELON SOYBEAN BENEFIT
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Study on Efficient and Simplified Interplanting Cultivation Technology of Cotton Cultivar Yinshan 8 被引量:1
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作者 唐中杰 谢德意 +2 位作者 赵元明 聂利红 吕淑平 《Agricultural Science & Technology》 CAS 2017年第9期1628-1630,1637,共4页
According to the severe drop in the planting area of cotton in recent years, cotton variety Yinshan 8 was intercropped with onions and watermelon by using efficient and simplified interplanting cultivation techniques,... According to the severe drop in the planting area of cotton in recent years, cotton variety Yinshan 8 was intercropped with onions and watermelon by using efficient and simplified interplanting cultivation techniques, such as large-scale and intensive planting, mechanized intertillage, integrated management of water and fertilizer, etc. The application of the techniques could reduce production cost, improve the comprehensive benefit of cotton planting, increase farmers' income, and promote the sustainable development of rural economy. 展开更多
关键词 COTTON Yinshan 8 interplantING Simplified cultivation
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The Interplanting Technology of Pleurotus ostreatus and Dendrobium officinale 被引量:1
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作者 莫祺晖 罗先群 +6 位作者 郑元涛 何达崇 李发盛 孙文波 张红岩 莫勇生 蒋永强 《Agricultural Science & Technology》 CAS 2015年第7期1329-1331,共3页
In summer, Cha No. 39 of 292 bags and 205 of 244 bags were inter- planted with Dendrobium officinale on cultivation bed, respectively, whose yields and biological efficiencies reached 102.46 kg and 103.98%, and 96.77 ... In summer, Cha No. 39 of 292 bags and 205 of 244 bags were inter- planted with Dendrobium officinale on cultivation bed, respectively, whose yields and biological efficiencies reached 102.46 kg and 103.98%, and 96.77 kg and 113.32%, accordingly. The seedlings of Dendrobium officinale interplanted with Pleurotus os- treatus grew by 2.78 cm during 10 weeks on cultivation beds, and the seedlings grew by 2.68 cm in the cultivation beds without interplanting arrangement. These demonstrated that the interplanting of Dendrobium officinale and Pleurotus ostreatus has none adverse effects on growth of Dendrobium officinale. 展开更多
关键词 Dendrobium officinale Pleurotus ostreatus interplantING Biological effi- ciency
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Effect of Interplanting with Zero Tillage and Straw Manure on Rice Growth and Rice Quality 被引量:2
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作者 LIU Shi ping NIE Xin tao DAI Qi gen Huo Zhong yang XU Ke 《Rice science》 SCIE 2007年第3期204-210,共7页
The interplanting with zero-tillage of rice, i.e. direct sowing rice 10-20 days before wheat harvesting, and remaining about 30-cm high stubble after cutting wheat or rice with no tillage, is a new cultivation technol... The interplanting with zero-tillage of rice, i.e. direct sowing rice 10-20 days before wheat harvesting, and remaining about 30-cm high stubble after cutting wheat or rice with no tillage, is a new cultivation technology in wheat-rice rotation system. To study the effects of interplanting with zero tillage and straw manure on rice growth and quality, an experiment was conducted in a wheat-rotation rotation system. Four treatments, i.e. ZIS (Zero-tillage, straw manure and rice interplanting), Zt (Zero-tillage, no straw manure and rice interplanting), PTS (Plowing tillage, straw manure and rice transplanting), and PT (Plowing tillage, no straw manure and rice transplanting), were used. ZtS reduced plant height, leaf area per plant and the biomass of rice plants, but the biomass accumulation of rice at the late stage was quicker than that under conventional transplanting cultivation. In the first year (2002), there was no significant difference in rice yield among the four treatments. However, rice yield decreased in interplanting with zero-tillage in the second year (2003). Compared with the transplanting treatments, the number of filled grains per panicle decreased but l000-grain weight increased in interplanting with zero-tillage, which were the main factors resulting in higher yield, tnterplanting with zero-tillage improved the milling and appearance qualities of rice. The rates of milled and head rice increased while chalky rice rate and chalkiness decreased in interplanting with zero-tillage. Zero-tillage and interplanting also affected rice nutritional and cooking qualities. In 2002, ZIS showed raised protein content, decreased amylose content, softer gel consistency, resulting in improved rice quality. In 2003, zero-tillage and interplanting decreased protein content and showed similar amylose content as compared with transplanting treatments. Moreover, protein content in PTS was obviously increased in comparison with the other three treatments. The rice in interplanting with zero-tillage treatments had higher peak viscosity and breakdown, lower setback, showing better rice taste quality. The straw manure had no significant effect on rice viscosity under interplanting with zero-tillage, but had the negative influence on the rice taste quality under transplanting with plowing tillage. 展开更多
关键词 rice conservation tillage ZERO-TILLAGE interplantING straw manure yield components rice quality leaf area biomass accumulation root activity milling and appearance quality nutritional quality RVA profile characteristics
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Interplanting Patterns of Cash Crops under Forest 被引量:1
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作者 Renjie DU Yuejun QU +5 位作者 Hu JIN Haibo JIANG Yunchang DU Dongyue ZHOU Jing FU Ping SHI 《Asian Agricultural Research》 2014年第11期72-74,共3页
At the same time of tending forests,it is necessary to explore the under-forest economic development mode,bring into play production function of economic plants,establish cultivation mode of edible fungus,wild vegetab... At the same time of tending forests,it is necessary to explore the under-forest economic development mode,bring into play production function of economic plants,establish cultivation mode of edible fungus,wild vegetables and medicinal plants under forest,to obtain certain economic benefit in short period. This paper made a preliminary study on significance and existing problems of the under-forest economy,and came up with several interplanting patterns,in the hope of providing a comprehensive operation and cultivation approach for developing the under-forest economy. 展开更多
关键词 Under FOREST CASH CROPS interplantING PATTERNS
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Highly-efficient Stereo-cultivation Model in Kiwifruit Orchards Interplanting Konjak 被引量:1
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作者 Jinping WU Zili DING +3 位作者 Anquan LIU Chaozhu YANG Jiang Zhengjun Zhengming QIU 《Agricultural Science & Technology》 CAS 2015年第6期1101-1102,1109,共3页
The kiwifruit orchards with plants growing for over two years were chosen for interplanting of konjak, which takes advantages of complementation of the two plants in terms of habits, reducing water and soil erosions e... The kiwifruit orchards with plants growing for over two years were chosen for interplanting of konjak, which takes advantages of complementation of the two plants in terms of habits, reducing water and soil erosions effectively, and decreasing water evaporation, and konjak diseases. Furthermore, the interplanting doubles planting benefits and constitutes a highly-efficient planting model. 展开更多
关键词 Kiwifruit orchard interplantING Konjak
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Efficient Technique of Rapeseed and Morchella spp.Interplanting in Mountainous Areas
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作者 Wenjun SONG Haiping DENG +3 位作者 Yan SHI Dan LIU Xiaosong LI Kaiguo LIU 《Medicinal Plant》 CAS 2022年第1期7-10,共4页
Aiming at the climatic characteristics of more rain and high humidity and cultivation habits of rapeseed in Tongren area,in terms of rapeseed and Morchella spp.interplanting,excellent varieties suitable for the local ... Aiming at the climatic characteristics of more rain and high humidity and cultivation habits of rapeseed in Tongren area,in terms of rapeseed and Morchella spp.interplanting,excellent varieties suitable for the local climate were selected,the formulas of culture substrate and nutrition bag were optimized to produce high-quality strains,soil pests were prevented and controlled,rapeseed was transplanted in time,Morchella spp.were sown in ditches,nutrition bags were placed simultaneously,thick soil was covered and fruiting ditches were left,and stress was arranged to promote growth of mycelia.The production cycle was 90-100 d.The yield of Morchella spp.reached 2250-3375 kg/ha,with a net profit of 6000-10000 yuan. 展开更多
关键词 Morchella spp. RAPESEED interplantING Nutrition bag Stress Density of conidial layer
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Interplanting Some Soybean Cultivars with Mandarin Trees in Sandy Soil
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作者 M. A. F. Selim Y. A. A. Hefny +1 位作者 Eman I. Abdel-Wahab Marwa Kh. A. Mohamed 《Agricultural Sciences》 2020年第1期88-110,共23页
Two-year field experiments were carried out at El-Kassasen Horticultural Research Station, Agricultural Research Center (ARC), Ismailia government, Egypt, during 2018 and 2019 summer seasons to evaluate some soybean c... Two-year field experiments were carried out at El-Kassasen Horticultural Research Station, Agricultural Research Center (ARC), Ismailia government, Egypt, during 2018 and 2019 summer seasons to evaluate some soybean cultivars for interplanting with mandarin trees to achieve high productivity of both crops, land usage and profitability under sandy soil conditions. The treatments were the combinations of two cropping systems (interplanting and solid cultures) and five soybean cultivars (Giza 21, Giza 22, Giza 35, Giza 82 and Giza 111). A strip plot design with three replications was used. Interplanting soybean cultivar Giza 22 with mandarin trees gave a higher total count of rhizobia in rhizosphere of mandarin roots after 75 days from soybean sowing than the other treatments in both seasons. The highest fruit weight and volume, total soluble solids (T.S.S.), fruit yields per tree and per ha were obtained by growing soybean cultivar Giza 22 or Giza 111 with mandarin compared with the other treatments in both seasons. With respect to soybean crop, interplanting soybean with mandarin trees decreased percentages of light intensity at the middle and bottom of the plant, chlorophylls a and b, as well as, plant dry weight after 75 days from soybean sowing compared with those of solid culture in both seasons. Soybean cultivars Giza 22 and Giza 82 had higher light intensity at the middle and bottom of the plant, as well as chlorophyll a, meanwhile soybean cultivars Giza 22 and Giza 111 had higher plant dry weight than the other soybean cultivars after 75 days from soybean sowing in both seasons. Soybean cultivar Giza 22 and Giza 111 had higher plant dry weight than the other soybean cultivars under interplanting and solid plantings in both seasons. Interplanting soybean with mandarin trees decreased soybean seed yield and its attributes compared with soybean solid culture in both seasons. Soybean cultivars Giza 111 and Giza 22 gave a higher number of pods per plant, seed yields per plant and per ha than the other cultivars in both seasons. Soybean cultivars Giza 111 and Giza 22 followed by Giza 82 recorded a higher number of pods per plant, seed yields per plant and per ha under interplanting and solid cultures than the other treatments in both seasons. Interplanting soybean cultivar Giza 22 and Giza 111 with mandarin trees achieved higher LER, LEC, total return and MAI than solid culture of mandarin. Growing four ridges of soybean cultivars Giza 22 or Giza 111 between mandarin trees cultivar Fremont had higher productivity, land usage and profitability than mandarin solid culture under sandy soil conditions. 展开更多
关键词 interplantING MANDARIN Soybean CULTIVARS Total COUNT of RHIZOBIA COMPETITIVE Relationships Financial Return
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High-yield and High-efficiency Standardized Cultivation Technique for Wheat Interplanting with Peanuts
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作者 Yaping ZHENG Zulin ZHENG +7 位作者 Lili WANG Chunxiao WANG Zeqi LU Wei JIANG Hongwei ZANG Hao FENG Yongmei ZHENG Caibin WANG 《Asian Agricultural Research》 2019年第11期70-72,80,共4页
Through wheat interplanting with peanuts,it is able to make full use of the light and heat resources in the growing season to achieve high yield of both wheat and peanuts in two seasons of one year.Wheat interplanting... Through wheat interplanting with peanuts,it is able to make full use of the light and heat resources in the growing season to achieve high yield of both wheat and peanuts in two seasons of one year.Wheat interplanting with peanuts is one of the main cultivation methods of wheat and oil crop double cropping system,and has very broad development prospects in the Huang-Huai-Hai region.This paper summarized high-yield the high-efficiency and standardized cultivation techniques for wheat interplanting with peanuts,including crop rotation,proper deep ploughing,balanced fertilization,rational matching of fine varieties,interplanting at suitable time,sowing according to certain specification,and enhancing the field management.This can be used as reference for high-yield and high-efficiency standardized cultivation technique for wheat interplanting with peanuts. 展开更多
关键词 PEANUT WHEAT interplantING HIGH YIELD CULTIVATION
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橡胶与砂仁间作小气候特点初探 被引量:15
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作者 周再知 郑海水 +1 位作者 杨曾奖 尹光天 《生态学杂志》 CAS CSCD 北大核心 1994年第1期27-31,共5页
橡胶与砂仁间作小气候特点初探周再知,郑海水,杨曾奖,尹光天(中国林业科学院热带林业研究所,广州510520)ResearchonMicroclimaticCharacteristicinPlantationofRub... 橡胶与砂仁间作小气候特点初探周再知,郑海水,杨曾奖,尹光天(中国林业科学院热带林业研究所,广州510520)ResearchonMicroclimaticCharacteristicinPlantationofRubberIntercroppedwi... 展开更多
关键词 RUBBER Amomum longiligulare interplantING microclimate.
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不同郁闭度和坡位对杉木林下套种鄂西红豆树的影响
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作者 冯寿荣 《福建林业》 2024年第5期32-35,共4页
对不同林分郁闭度、不同坡位杉木林下套种的鄂西红豆树生长及生物量进行调查分析。结果表明:不同坡位、不同郁闭度对杉木胸径及树高均有一定的影响,下坡位杉木平均胸径及树高与上坡位相比分别提高了59.65%及26.43%,郁闭度0.5~0.6的杉木... 对不同林分郁闭度、不同坡位杉木林下套种的鄂西红豆树生长及生物量进行调查分析。结果表明:不同坡位、不同郁闭度对杉木胸径及树高均有一定的影响,下坡位杉木平均胸径及树高与上坡位相比分别提高了59.65%及26.43%,郁闭度0.5~0.6的杉木平均胸径及树高与郁闭度0.3~0.4处理相比分别提高了22.80%及22.30%;不同郁闭度对鄂西红豆树胸径和树高的影响均依次为0.5~0.6>0.3~0.4>0,对枝下高及冠幅的影响为0>0.5~0.6>0.3~0.4,对树干、叶、根及总生物量的影响为0.5~0.6>0.3~0.4>0。不同坡位对鄂西红豆树胸径、树高、枝下高、总生物量的影响依次为下坡位>中坡位>上坡位;鄂西红豆树树高与胸径、冠幅与胸径及树高呈极显著正相关,干、枝、叶生物量与根生物量呈极显著正相关。下坡位且杉木林分郁闭度为0.5~0.6适合杉木林下套种的鄂西红豆树。 展开更多
关键词 林下套种 杉木 鄂西红豆树 生长 生物量
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果园生草对^15N利用及土壤累积的影响 被引量:22
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作者 彭玲 文昭 +2 位作者 安欣 姜翰 姜远茂 《土壤学报》 CAS CSCD 北大核心 2015年第4期950-956,共7页
以2 a生红富士/平邑甜茶为试材,采用15N同位素示踪技术,研究了种植3种牧草(白三叶、鼠茅草和黑麦草)对苹果植株生长,氮素利用、损失及其在0~60 cm土层残留情况的影响。结果表明:与单作苹果相比,生草栽培后苹果植株总鲜重、新梢粗度、新... 以2 a生红富士/平邑甜茶为试材,采用15N同位素示踪技术,研究了种植3种牧草(白三叶、鼠茅草和黑麦草)对苹果植株生长,氮素利用、损失及其在0~60 cm土层残留情况的影响。结果表明:与单作苹果相比,生草栽培后苹果植株总鲜重、新梢粗度、新梢长度及根冠比皆成增加的趋势;苹果植株根长、根长密度及根表面积均以种植白三叶处理最大,其次为种植鼠茅草,最低的为单作苹果;不同处理间氮素利用率差异显著,种植白三叶后苹果植株氮素利用率最高,种植鼠茅草次之,单作苹果最低;生草栽培后15N残留主要集中在0~20 cm土层,且其15N残留量显著高于单作苹果。而在20~40 cm及40~60 cm土层15N残留量则以单作苹果最高,种植黑麦草次之,最低的为种植白三叶;生草栽培后氮素损失率为单作苹果>种植黑麦草>种植鼠茅草>种植白三叶。表明种植白三叶、鼠茅草及黑麦草在促进苹果植株氮素利用的同时,也一定程度上减弱了土壤氮素的损失。 展开更多
关键词 苹果 生草栽培 ^15N-尿素
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2种生态型三叶鬼针草的不同株数混种比例对其镉累积的影响 被引量:15
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作者 黄科文 廖明安 林立金 《生态与农村环境学报》 CAS CSCD 北大核心 2015年第5期753-759,共7页
为研究不同混种比例对2种生态型三叶鬼针草(Bidens pilosa)镉积累的影响,通过盆栽试验研究了镉污染条件下(w为10 mg·kg-1)农田生态型与矿山生态型三叶鬼针草在混种株数比例为1∶4、2∶3、3∶2、4∶1以及单种时2种生态型三叶鬼针草... 为研究不同混种比例对2种生态型三叶鬼针草(Bidens pilosa)镉积累的影响,通过盆栽试验研究了镉污染条件下(w为10 mg·kg-1)农田生态型与矿山生态型三叶鬼针草在混种株数比例为1∶4、2∶3、3∶2、4∶1以及单种时2种生态型三叶鬼针草对镉的积累效果。结果表明,混种提高了农田生态型三叶鬼针草单株生物量,但降低了矿山生态型三叶鬼针草单株生物量。混种也提高了2种生态型三叶鬼针草的叶绿素a、叶绿素b及类胡萝卜素含量。此外,混种显著提高了2种生态型三叶鬼针草各器官的镉含量(P<0.05)。当农田生态型与矿山生态型混种株数比例为2∶3时,2种生态型三叶鬼针草各器官镉含量均最大,且单盆三叶鬼针草地上部分及整株镉积累量也最大,分别为422.08和477.91μg·盆-1。因此,农田生态型与矿山生态型三叶鬼针草混种株数比例为2∶3时能有效提高2种生态型三叶鬼针草对镉的积累能力,增强对镉污染土壤的修复效果。 展开更多
关键词 三叶鬼针草 生态型 混种 镉积累
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马尾松人工林强度采伐后套种阔叶树种的生长动态 被引量:6
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作者 曾冀 雷渊才 +2 位作者 唐继新 贾宏炎 蔡道雄 《中南林业科技大学学报》 CAS CSCD 北大核心 2018年第3期64-69,81,共7页
研究马尾松人工林强度采伐后套种的不同树种的生长动态规律,筛选适宜的套种树种,为马尾松人工林近自然经营提供技术支撑。2008年2月于15年生马尾松人工林采用4个强度进行采伐,即保留密度分别为225(Ⅰ)、300(Ⅱ)、375(Ⅲ)和450(Ⅳ)株/hm2... 研究马尾松人工林强度采伐后套种的不同树种的生长动态规律,筛选适宜的套种树种,为马尾松人工林近自然经营提供技术支撑。2008年2月于15年生马尾松人工林采用4个强度进行采伐,即保留密度分别为225(Ⅰ)、300(Ⅱ)、375(Ⅲ)和450(Ⅳ)株/hm2,于林下均匀套种大叶栎、红椎、灰木莲、香梓楠、格木等5个乡土阔叶树种,2008年底调查套种阔叶树的胸径、树高和冠幅等生长指标,此后至2016年每2年测定1次,应用方差分析和Duncan多重比较分析这些生长指标对不同强度采伐的动态响应。结果表明:采伐强度显著影响林下套种阔叶树的生长,其中大叶栎和灰木莲的胸径、树高和冠幅以及红椎的胸径和冠幅的生长随保留密度增大而减小,而红椎、格木的树高生长受采伐强度影响不大;格木的胸径和冠幅以及香梓楠的树高和冠幅生长在套种第7年之前受采伐强度影响不大,此后其生长随保留密度增大而减小;香梓楠的胸径生长则一直随保留密度增大而增大。大叶栎的胸径、树高和冠幅以及灰木莲的树高和冠幅、红椎的树高生长高峰出现在套种后第3年;红椎、灰木莲、香梓楠的胸径生长高峰出现在第5年;格木的胸径、树高和冠幅以及香梓楠的树高和冠幅、红椎的冠幅生长高峰出现在套种后第9年。马尾松人工林强度采伐后套种阔叶树的生长动态表现为大叶栎>红椎>灰木莲>香梓楠>格木。大叶栎、红椎、灰木莲的生长随采伐强度的增大而增大,而香梓楠、格木受采伐强度的影响不显著。综合比较5种套种树种的生长特性,在桂西南开展马尾松中龄林近自然化改造,选用大叶栎、红椎、灰木莲进行林下套种,宜采用采伐强度Ⅰ、Ⅱ,而套种香梓楠、格木则宜采用采伐强度Ⅲ、Ⅳ。 展开更多
关键词 马尾松 套种 阔叶树 生长动态
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杉木人工林间伐后套种阔叶树种的生长动态 被引量:8
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作者 曾冀 朱雪萍 +2 位作者 唐继新 廖树寿 卢立华 《西北林学院学报》 CSCD 北大核心 2020年第5期97-103,共7页
15年生杉木人工林采用4个强度进行间伐,保留密度分别为375(Ⅰ)、488(Ⅱ)、594(Ⅲ)和732(Ⅳ)株·hm-2,于林下均匀套种大叶栎、红椎、灰木莲、香梓楠、格木等5个乡土阔叶树种,2008年底调查套种阔叶树的胸径、树高和冠幅等生长指标,此... 15年生杉木人工林采用4个强度进行间伐,保留密度分别为375(Ⅰ)、488(Ⅱ)、594(Ⅲ)和732(Ⅳ)株·hm-2,于林下均匀套种大叶栎、红椎、灰木莲、香梓楠、格木等5个乡土阔叶树种,2008年底调查套种阔叶树的胸径、树高和冠幅等生长指标,此后至2016年每2 a测定1次,应用方差分析和Duncan多重比较分析这些生长指标对不同强度间伐的动态响应。结果表明:1)杉木林下套种第3年,大叶栎的胸径、树高和冠幅以及灰木莲的树高和冠幅、红椎的树高出现生长高峰;第5年,红椎、灰木莲、香梓楠的胸径出现生长高峰;第9年,格木的胸径、树高和冠幅以及香梓楠的树高和冠幅、红椎的冠幅增长量最大。2)套种5个阔叶树的3个方面(胸径、树高和冠幅)生长总体表现看,其生长速度最快为大叶栎,其次为红椎、灰木莲,再次为香梓楠,最慢为格木。3)杉木间伐强度对套种阔叶树的生长大多表现为中度间伐强度优于强度和弱度处理,但并未呈现明显规律。香梓楠的胸径、树高、枝下高和冠幅生长最慢,大叶栎则生长最快;大叶栎在间伐处理Ⅱ(488株·hm-2)下套种优于其余3个间伐处理,格木则适合在间伐处理Ⅰ(375株·hm-2)下套种,红椎、灰木莲和香梓楠适合在间伐处理Ⅲ(594株·hm-2)下套种。大叶栎、红椎和灰木莲适合在间伐处理Ⅰ和Ⅱ下套种;香梓楠和格木适合在间伐处理Ⅲ和Ⅳ下套种。 展开更多
关键词 杉木 套种 阔叶树 生长动态
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单作茶园与间作茶园茶树的光合效能和蒸腾量的研究 被引量:8
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作者 沈泉 唐荣南 辛克礼 《南京林业大学学报(自然科学版)》 CAS CSCD 1995年第2期19-22,共4页
对绿色植物来说,光合能力强弱是产量高低重要标志,茶树亦不例外。本文经计算得到夏季间作茶园茶树光合能力比单作茶园提高4.6%,因而间作茶园产量也高于单作茶园。茶树的蒸腾量直接影响茶叶品质,蒸腾量大,茶树含水量少,叶片易... 对绿色植物来说,光合能力强弱是产量高低重要标志,茶树亦不例外。本文经计算得到夏季间作茶园茶树光合能力比单作茶园提高4.6%,因而间作茶园产量也高于单作茶园。茶树的蒸腾量直接影响茶叶品质,蒸腾量大,茶树含水量少,叶片易老化,茶的品质较差;反之,茶树含水率高,叶片持嫩性强,茶的品质较高,本文计算得南林大实习林场夏季单作茶园茶树日蒸腾量比间作茶园高23.54%,这是间作茶园品质好于单作茶园的重要原因之一。 展开更多
关键词 单作茶园 间作茶园 光合总量 蒸腾总量 茶树
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松茶间作茶树叶片的解剖构造和气孔活动 被引量:9
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作者 唐荣南 汤兴陆 《应用生态学报》 CAS CSCD 1991年第3期201-206,共6页
本文利用光镜技术和MK-3型自动气孔计对松茶间作和单作茶园茶树叶片的解剖构造和气孔传导力进行了比较研究。研究表明,间作茶园茶树叶片的上表皮、栅拦组织和全叶均比单作茶树薄,分别为单作茶树的82.7%,78.2%和67.2%,叶质柔嫩。叶片... 本文利用光镜技术和MK-3型自动气孔计对松茶间作和单作茶园茶树叶片的解剖构造和气孔传导力进行了比较研究。研究表明,间作茶园茶树叶片的上表皮、栅拦组织和全叶均比单作茶树薄,分别为单作茶树的82.7%,78.2%和67.2%,叶质柔嫩。叶片气孔传导力比单作茶园低。嫩叶传导力>老叶;1芽5叶新梢按叶序3叶>2、4叶>1、5叶;按树冠垂直分布,冠上叶(0—5cm)>冠中叶(10—15cm)>冠下叶(30cm左右)。说明气孔传导力不仅受生态条件影响,与自身的叶龄、叶位等生理机能也有密切关系。 展开更多
关键词 松茶间作 茶树 解剖构造 气孔活动
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根系互作对苹果生长及^(15)N-尿素吸收、利用和土壤残留的影响 被引量:2
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作者 彭玲 刘晓霞 +3 位作者 何流 徐新翔 葛顺峰 姜远茂 《水土保持学报》 CSCD 北大核心 2018年第4期353-360,共8页
在苹果/白三叶(M1)和苹果/黑麦草(M2)复合系统中,设置根系分隔(完全分隔N1、尼龙网分隔N2、不分隔N3),采用^(15) N同位素示踪技术,研究了根系互作对苹果生长及^(15) N吸收、利用,损失和土壤残留的影响。结果表明:苹果新梢旺长期,在M1中... 在苹果/白三叶(M1)和苹果/黑麦草(M2)复合系统中,设置根系分隔(完全分隔N1、尼龙网分隔N2、不分隔N3),采用^(15) N同位素示踪技术,研究了根系互作对苹果生长及^(15) N吸收、利用,损失和土壤残留的影响。结果表明:苹果新梢旺长期,在M1中苹果各生长指标均为N3>N2>N1,在M2中趋势相反。与N1处理相比,M1中N2和N3处理苹果^(15) N利用率分别增加了11.91%和18.96%,M2中分别降低了5.76%和8.99%,苹果全氮量和^(15) N吸收量趋势相同。苹果根区土壤^(15) N丰度、总氮含量和^(15) N残留率均以N1处理最高,N3处理最低;苹果落叶期,两种复合体系中均以N3处理的苹果各生长指标最大,N1处理最低。在M1中N2和N3处理苹果根区土壤^(15) N丰度分别比N1处理增加了22.33%和34.15%,在M2中增幅分别为13.73%和21.44%,土壤总氮含量呈相同趋势。M1和M2中苹果全氮量、^(15) N吸收量和各器官Ndff值差异显著,均为N3>N2>N1。与N1处理相比,M1中N2和N3处理下苹果^(15) N利用率分别增加了19.11%和42.66%,而^(15) N损失率分别降低了13.55%和27.12%,在M2中趋势相同。苹果生长前期,黑麦草和苹果以负相竞争为主,白三叶对其促进效果亦不显著。而至苹果生长后期,两种牧草和苹果根系互作降低了苹果根区氮素损失,促进了苹果的氮素吸收利用和营养生长,且以间作白三叶效果最好。 展开更多
关键词 苹果 生草栽培 根系互作 15 N-尿素 根系分隔
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林茶间作的理论基础研究 被引量:5
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作者 沈泉 唐荣南 《生物数学学报》 CSCD 北大核心 1994年第S1期66-70,共5页
复合生态系统是提高土地、时间、空间利用率的有效途径,目前国际国内已有许多复合经营的生态系统,并且取得很好的效果,南京林业大学实习林场从七十年代开始建立了林茶间作复合茶园,既提高了产量,又提高了茶叶的质量,取得了好的经... 复合生态系统是提高土地、时间、空间利用率的有效途径,目前国际国内已有许多复合经营的生态系统,并且取得很好的效果,南京林业大学实习林场从七十年代开始建立了林茶间作复合茶园,既提高了产量,又提高了茶叶的质量,取得了好的经济效益,然而,复合经营茶园的栽树数量、遮荫面积和遮荫时间是复合茶园规划设计和调控中迫切需要解决的问题,本文为此提供单树遮荫面积和茶园各点遮荫时间的计算方法,据些来确定复合茶园的合理布局和优化调控措施,以使茶园获得适宜的光照和良好的生态环境,达到提高茶叶的产量和质量. 展开更多
关键词 复合茶园 遮荫面积 遮荫时间
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