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Research in Cold and Arid Regions 2011年第2期3卷 143-148页

作者： Tuo Chen HuiJuan Pei YouFu Zhang LongYing Wen HongGuan Tang YuanQing He State Key Laboratory of Cryospheric Sciences Cold and Arid Regions Environmental and Engineering Research Institute Lanzhou Gansu 730000 China Henan University of Science and Technology Luoyang Henan 471003 China

Seasonal variation of foliar δ13C values as well as proline, silicon, MDA and relative water content in sabina przewalskii Kom. and S. chinensis （Lin.） Ant. were measured. The results show that foliar δ13C values were significantly different at different seasons： lower in winter but higher in summer. δ13C values were positively correlated with air temperature and soil temperature. This demonstrates that foliar δ13C of sabina is a successful empirical indictor of temperature. Furthermore, foliar δ13C values were positively related to proline and silicon content, and negatively related to relative water content and MDA content. Compared with S. chinensis, S. przewalskii has higher δ13C values, proline and silicon content as well as lower MDA and relative water content. All these results provided strong evidence that it is feasible for δ13C to be regarded as another index to evaluate freezing tolerance of sabina.

关键词： sabina carbon isotope composition seasonal changes freezing tolerance

Temperature change along elevation and its effect on the alpine timberline tree growth in the southeast of the Tibetan Plateau

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Advances in Climate Change Research 2018年第3期9卷 185-191页

作者： CHEN Bao-Xiong SUN Yu-Fang ZHANG Hong-Bin HAN Zhi-Hua WANG Jing-Sheng LI Yao-Kui YANG Xiao-Lin Rural Energy & Environment Agency Ministry of Agriculture and Rural Affairs of the People's Republic of China Beijing 100125 China National Defense Examination Center Beijing 100082 China Lhasa Plateau Ecosystem Research Station Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Science Beijing 100101China Tibet Agricultural and Animal Husbandry College Linzhi 860000 China

Smith fir （Abies georgei var. smithii）, which is the timberline constructive tree species in the cool slope of Mt. Sygera in the southeast ofTibet, plays a very important role in maintaining the timberline completeness and indicating global climate change. This study uses theinstrumental recorded meteorological data along the altitude from 3600 to 4400 m at every 200 m in the growing season, investigates the smithfir growth biomass from 2006 to 2010 in the same timberline ecotone, and makes a non-linear regression analysis to determine the relationshipbetween the alpine tree growth biomass and its in-situ environment condition. The results showed that the cool and warm slope share different airtemperature lapse rates, which were 0.48 C （100 m）1 in the warm slope and 0.54 C （100 m）1 in the cool slope, respectively. However, thedominant timberline tree species in the warm slope was sabina saltuaria, and it can reach as high as 4570 m, which is approximately 170 mhigher than that in the cool slope. Moreover, the smith fir in the cool slope was only distributed in the range of elevation from approximately3600 to 4400 m. The altitude of approximately 3800 m was the appropriate altitude for the growing smith fir, where the mean air temperature inthe growing season was about 9.0 C, and the young smith fir tree can form more biomass. The results suggested that alpine forest chose asuitable environment where trees can grow more in the prolonged succession, but not in the warmer or cooler condition, it could be seen as abiological evidence for climate change.

关键词： Abies georgei var. smithii Growth biomass sabina saltuaria In-situ environment condition Non-linear regression analysis

Precipitation variation in the northeastern Tibetan Plateau recorded by the tree rings since 850 AD and its relevance to the Northern Hemisphere temperature

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Science China Earth Sciences 2006年第4期49卷 408-420页

作者： John K. Kutzbach Center for Climatic Research University of Wisconsin-Madison Madison 53706 USA

Three well-dated sabina Przewalskii ring-width chronologies from Dulan, China, have been used to reconstruct annual precipitation (from prior July to current June) variations on the northeast Tibetan Plateau since 850 AD. The reconstructions account of the instrumentally recorded precipitation variance are: 54.7% for the period of 1385-2000AD; 50.5% for 1099-1384AD and 45.7% for 850-1098AD. On the millenary scale, the precipitation variation over this region displays “W” shape, which has three peaks and two valleys. The precipitation is low during 1571-1879 AD, and high during 1880-2000 AD. 1900-2000 AD is the century with the highest precipitation over the northeast Tibetan Plateau in the last 1000 years, and 1962-2000 is the period with the highest pre- cipitation, and the highest variability of precipitation as well in the last 1000 years. The reconstructed series also reveals that the variability of annual precipitation is large when the precipitation is more, and contrarily, variability is small when the precipitation is low. With the temperature increasing obvi- ously in the 20th century, the precipitation in the study region significantly increased too, the variability of precipitation became larger, and drought and flooding occurred more frequently. The yearly tree-ring width (high frequency signal) series in this region reflects the local annually precipitation variation. However, the series with 40-year moving average (low frequency signal) cor- responds to the Northern Hemisphere temperature variations on the decadal to centurial scale. It correlates significantly with seven temperature curves of the Northern Hemisphere in the different time spans. For example, the correlation coefficients with the most temperature curves are around 0.9 during the period of 1852-1982 AD. In general, the temperature and the precipitation change syn- chronously in the Dulan region. It means that low temperature corresponds to low precipitation, andvice versa. This relations

关键词： Dulan China, sabina Przewalskii, annual precipitation, the Northern Hemisphere temperature.

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铅笔柏、侧柏幼树抗旱指标综合评价

林业科技通讯 2018年第5期 16-20页

作者：赵亚萍赵学敏杨成生李琴霞赵婕薛睿张继强甘肃省林业科学研究院兰州730020 甘肃林业职业技术学院甘肃天水741020

通过对盆栽2年生铅笔柏（sabina virginiana）、侧柏（Platycladus orientalis）的叶片（枝条）的保水力、根冠比、根系活力、叶绿素、蛋白质、SOD超氧化物歧化酶、饱和吸水时总体原初渗透势π0、初始质壁分离时的总体渗透势πp、零膨... 详细信息

通过对盆栽2年生铅笔柏（sabina virginiana）、侧柏（Platycladus orientalis）的叶片（枝条）的保水力、根冠比、根系活力、叶绿素、蛋白质、SOD超氧化物歧化酶、饱和吸水时总体原初渗透势π0、初始质壁分离时的总体渗透势πp、零膨压时的相对渗透水含量ROC、质外体相对含水量RWC等11项生理生化指标的测定,对铅笔柏、侧柏的抗旱性强弱进行对比,结果表明：叶片保水力：铅笔柏〉侧柏;根冠比：铅笔柏〉侧柏;根系活力：侧柏〉铅笔柏;叶绿素含量：铅笔柏〉侧柏;蛋白质含量：侧柏〉铅笔柏;SOD超氧化物歧化酶含量：铅笔柏〉侧柏;饱和吸水时总体原初渗透势π0：铅笔柏〉侧柏;初始质壁分离时的总体渗透势πp：铅笔柏〉侧柏;零膨压时的相对渗透水含量ROC：侧柏〉铅笔柏;质外体相对含水量AWC：侧柏〉铅笔柏;失膨点渗透水和饱和渗透水比值Vp/V0：铅笔柏〉侧柏。运用模糊数学的隶属函数法对2个树种的抗旱能力做综合评价,铅笔柏在抗旱能力方面强于国内乡土树种侧柏。

关键词：铅笔柏 sabina virginiana 侧柏 Platycladus orientalis 抗旱性综合评价

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祁连圆柏种子萌发特性及其解除休眠技术研究

林业科技通讯 2016年第7期 31-34页

作者：闫春鸣滕玉风占玉芳鲁延芳田晓萍张掖市林业科学研究院甘肃张掖734000

为探讨祁连圆柏(sabina przewalskii Kom.)种子休眠机制,对祁连圆柏种子进行种皮透水性、胚萌芽抑制物等直接和间接测定及各催芽措施对种子发芽育苗的影响研究,结果表明:祁连圆柏种子发芽极其困难,种壳虽骨质坚硬,但不影响种子的透水性... 详细信息

为探讨祁连圆柏(sabina przewalskii Kom.)种子休眠机制,对祁连圆柏种子进行种皮透水性、胚萌芽抑制物等直接和间接测定及各催芽措施对种子发芽育苗的影响研究,结果表明:祁连圆柏种子发芽极其困难,种壳虽骨质坚硬,但不影响种子的透水性能。祁连圆柏外果皮和果肉、种仁中均存在着影响种子萌发的抑制物质,但不影响种子发芽。种子形态成熟后,进入深度漫长的休眠生理后熟期,才能解除其深度休眠。

关键词：祁连圆柏 sabina przewalskii Kom. 种子种子休眠萌发特性

祁连圆柏采种林矮化培育对树体生长和产种量的影响

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林业科技通讯 2019年第1期 37-39页

作者：唐兴玉陵军成古浪县土门林场甘肃古浪733100 天祝县林业工作站甘肃天祝733299

为了提高祁连圆柏(sabina przewalskii Kom.)采种林产种量、种子质量和采种效率,对采种林进行不同高度截干培育,结果表明:祁连圆柏截干培育5年后,树体由原来的单干单头宝塔形变为多干多头开心形,树高降低,冠幅增加、产种量、采种效率、... 详细信息

为了提高祁连圆柏(sabina przewalskii Kom.)采种林产种量、种子质量和采种效率,对采种林进行不同高度截干培育,结果表明:祁连圆柏截干培育5年后,树体由原来的单干单头宝塔形变为多干多头开心形,树高降低,冠幅增加、产种量、采种效率、种子发芽率和幼苗生长量提高。其中离地面50cm截干培育的树体树高最低,为1.52m,较对照(CK)降低了70.99%,冠幅、产种量、采种效率、种子发芽率和幼苗高度最高,分别为1.82m、12.66kg/株、63.24kg/d·人、62.36%和12.78cm,较对照(CK)分别提高了85.71%、139.32%、80.27%、90.53%和87.39%,不同指标差异均达到极显著水平(P<0.01)。因此,在祁连圆柏采种林培育中可采用截干培育来降低树高,提高产种量和种子质量。

关键词：祁连圆柏 sabina przewalskii Kom. 采种林矮化培育产种量

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铅笔柏、侧柏幼树P-V曲线的制作及其应用

林业科技通讯 2017年第2期 22-25页

作者：赵亚萍赵学敏王俊杰赵婕薛睿张继强甘肃省林业科学研究院兰州730020 甘肃林业职业技术学院甘肃天水741020

运用P-V技术研究铅笔柏(sabina virginiana L.)、侧柏(Platycladus orientalis L.)幼树之间生理指标的差异,比较铅笔柏与侧柏的抗旱性强弱。结果表明铅笔柏的主要水分参数(P_0、P_W^P、ROWC、RWC、AWC、ROC)均明显低于侧柏;(RWD、V_P/V_... 详细信息

运用P-V技术研究铅笔柏(sabina virginiana L.)、侧柏(Platycladus orientalis L.)幼树之间生理指标的差异,比较铅笔柏与侧柏的抗旱性强弱。结果表明铅笔柏的主要水分参数(P_0、P_W^P、ROWC、RWC、AWC、ROC)均明显低于侧柏;(RWD、V_P/V_0、∈)渗透调节能力和束缚水含量、最大体积弹性模量均高于侧柏。表现铅笔柏自身"遗传"特性对干旱环境具有较强的耐旱能力。

关键词：铅笔柏 sabina virginiana L. 侧柏 Platycladus orientalis L. P-V曲线水分参数抗旱性

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祁连圆柏间作中药材的互作效应研究

林业科技通讯 2018年第11期 81-83页

作者：曹安邦陵军成天祝县古城林场甘肃天祝733211 天祝县林业工作站甘肃天祝733299

在祁连圆柏（ sabina przewalskii Kom. ）行间分别间作中药材甘草（Glycyrrhiza uralensis）、黄芩（Scutellaria baicalensis）和党参（Codonopsis pilosula），研究了祁连圆柏和中药材对彼此生长的影响。结果表明：祁连圆柏行间间作... 详细信息

在祁连圆柏（ sabina przewalskii Kom. ）行间分别间作中药材甘草（Glycyrrhiza uralensis）、黄芩（Scutellaria baicalensis）和党参（Codonopsis pilosula），研究了祁连圆柏和中药材对彼此生长的影响。结果表明：祁连圆柏行间间作中药材后降低了树冠温度，提高了树冠和土壤湿度，从而促进了祁连圆柏生长，但间作甘草和党参后也招致鼠兔危害，降低了祁连圆柏苗木保存率，中药材甘草、黄芩和党参自身根系生长量和产量也被降低。相比之下，祁连圆柏间作黄芩后，祁连圆柏高度、冠幅、地径和保存率分别为1．55m、60．14cm、5．23cm和92．15％，较对照（CK）分别提高了12．32％、13．28％、25．42％和3．28％，黄芩产量、林地鼠洞数和兔洞数分别为345．50kg／667m2、3．80个／667m2和6．05个／667m2，较对照（CK）分别降低了18．00％、15．93％和16．67％，互作效应最佳。因此，认为祁连圆柏行间间作黄芩有益于树体生长和增加收益。

关键词：祁连圆柏 sabina przewalskii Kom. 互作效应中药材甘草 Glycyrrhiza uralensis 黄芩 Scutellaria baicalensis 党参 Codonopsis pilosula 间作

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甘南高原大果圆柏容器育苗技术研究

林业科技通讯 2018年第6期 17-18页

作者：年科斌罗永斌甘南藏族自治州中心实验苗圃甘肃甘南747000 甘南藏族自治州夏河县隆瓦林场甘肃甘南741000

大果圆柏是甘南高原地区分布广泛的乡土树种,具有多种优良特性和研究价值。甘南州中心实验苗圃组织成立大果圆柏技术攻关组,进行高寒地区容器育苗技术研究,在育苗选种、消毒、催芽、播种、田间管理（将水∶种子∶洗涤剂=1.2kg∶0.5kg∶... 详细信息

大果圆柏是甘南高原地区分布广泛的乡土树种,具有多种优良特性和研究价值。甘南州中心实验苗圃组织成立大果圆柏技术攻关组,进行高寒地区容器育苗技术研究,在育苗选种、消毒、催芽、播种、田间管理（将水∶种子∶洗涤剂=1.2kg∶0.5kg∶15g的比例反复搓洗种子,然后用清水冲洗干净后进行混沙层积催芽100d,促进种子当年出苗;适宜的播种期为5月17日;播种后覆土厚度以2~3cm为宜;水分控制在含水量为70%比较好,以＂手捏成团,落地就散＂为宜;大果圆柏营养钵繁育发芽率为74%,当年成活率为71%）上严格要求,总结了一套较为科学、全面、可操作性强的育苗技术,提高了育苗发芽率、成活率。

关键词：甘南高原大果圆柏 sabina tibetica Kom. 容器育苗技术研究

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祁连圆柏大痣小蜂防治技术研究

林业科技通讯 2018年第12期 35-37页

作者：李长宇陵军成天祝县祁连林场甘肃天祝733000 甘肃省天祝县林业工作站

为了提高祁连圆柏(sabina przewalskii Kom.)良种率和降低虫果率,调查研究了祁连圆柏种实受害情况和害虫圆柏大痣小蜂(Megastigmus sabinae Xu et He)的生活史,并就化学防治设立了野外对比试验。结果表明:祁连山林区祁连圆柏良种率仅为3... 详细信息

为了提高祁连圆柏(sabina przewalskii Kom.)良种率和降低虫果率,调查研究了祁连圆柏种实受害情况和害虫圆柏大痣小蜂(Megastigmus sabinae Xu et He)的生活史,并就化学防治设立了野外对比试验。结果表明:祁连山林区祁连圆柏良种率仅为39. 67%,害虫圆柏大痣小蜂1年1代,其生活史绝大部分在祁连圆柏球果内以幼虫形态完成,羽化成虫爬出种壳,仅在球果外短暂停留完成交尾和产卵,羽化成虫在球果外交尾、产卵和幼虫孵化期是化学防治最佳时期,树冠喷洒0. 11%浓度的4 5%高效氯氰菊酯乳油后,良种率和种子发芽率分别为90. 42%和70. 34%,较对照(CK)分别提高了136. 33%和242 12%,差异均达到极显著水平(P<0. 01)。因此,建议采用这一药剂和方法来防治祁连圆柏大痣小蜂。

关键词：祁连圆柏 sabina przewalskii Kom. 大痣小蜂 Megastigmus sabinae Xu et He 防治