免费文献传递   相关文献

A study on successional trends of plant communities within aerial seeding region of the Alxa Desert

阿拉善退化沙地飞播植物群落演替趋势研究


阿拉善沙地飞播植被的形成和发育与生长季中的降水量及其季节分配有关。调查结果表明,当播种时月降水量大于65mm时,植物群落中高或较高存在度的植物种是蒙古沙拐枣(Calligonum mongolicum)、沙鞭(Psammochloa villose)和白沙蒿(Artemisia sphaerocephala),重要值分别是64.9%、61.6%和23.7%,生物量2038.2kg·hm-2。飞播种时月降水量小于40mm时,植物群落中高的或较高存在度的种是白沙蒿、葡根骆驼蓬(Peganum nigellastrum),重要值依次是65.5%~66.6%、35.7%~46.1%,生物量1827.3~1834.7kg·hm-2。飞播植物群落种的数量随生长季节的变化而异,在6~9月,白沙蒿的重要值和生物量所占群落总量的比率逐月增多,种的存在度保持稳定,表现了较强的适应能力。蒙古沙拐枣的重要值和生物量在6~8月间表现出增长趋势,9月生物量有所减少,但其在植物群落中的表现相对比较稳定。沙鞭的重要值和生物量随季节变化而减少,表现出衰退趋势。以上结果表明,在沙地人工建植白沙蒿和蒙古沙拐枣是治理退化沙地的有效措施。

The formation and evolution of vegetation sowed by airplane in the Alxa Desert is closely related to the amount and distribution of rainfall in growing season. The results in this study showed that the percentages of callogonum mongolicu,Psammochloa mogolica and Artemisia sphaerocephala in this area were higher than other species when the monthly rainfall is more than 65 mm during planting period. Furthermore,the important values were 64.5%、61.59% and 23.67% respectively and the biomass was 2038.20 kg/hm2. The percentages of Artemisia aphaeocephala and Peganum nigellastrum in this area were higher than other species when the monthly rainfall is less than 40mm during planting period. Their important value were 65.51% to 66.58% and 35.71% to 46.11% respectively and the biomass was 1827.30 to 1834.65 kg/hm2. In additionally,species richness also varied with different seasons in this area. The important value and the biomass of A. sphaerocephala increased,but the percentages of A. sphaerocephala were stable,which indiacted that A. sphaerocephala were adaptable during growing season,from June to September. For Calligonum mongolicum,the important value and biomass increased from June to August,but decreased in September. However,it is relatively stable among all species. The biomass and the important value of P. mogolica decreased with seasons,which indicated the degradation of P. mogolica. Above results showed that planting Artemisia sphaerocephala and calligonum mogolica is an effective measure for controlling degradation in the Alxa Desert.


全 文 : 万方数据
万方数据
万方数据
万方数据
1期 黄振华,等:有机碳化合物对湛江等鞭金藻生长的影响 17
鞭金藻脂肪酸组成的效应研究[J】.海洋科学,24(4):7-9.
『31 AlonsoDL。GrimaEM,SanchezJA,eta1.1992.Isolation
ofclonesoflsochrysisgalbanarichineicosapentaenoic
acid[J].Aquaculture.102“1:363.371.
『41 YehudaS,RabinovitzS,CarassoRL,eta1.2002,Theroleof
polyunsaturatedfattyacidsinrestoringthea ingeuronal
membrane【J】.NeurobiologyofAging,23:843-853.
151DasUN,FamsMD.2002.Estrogen,stain,and
polyunsaturatedfattyacids:Similaritiesinthe ractiona d
denefitS.isthereacommonlink?『J1.Nutrition.18:178.188.
【61 DuplusE,ForestC.2002.Isthereasinglem chanismfor
fattyacidregulationofge etranscription『J17Biochemical
Pharmacology,64:893.901.
【7l 孙灵毅,王力勇,赵强.2004.3种微藻兼养培养及营养
成分的比较[J】.大连水产学院学报,19(2):146.149
【8】 ChenF.1996.Highcelldenditycultureofmicroalgaein
heterotrophicgrowth[J】.Trends觑Biotechnology,
14:421.426.
【9】 张志良,翟伟菁.2003.植物生理学实验指导[M】,北京:
高等教育出版社,127.161.
【101ChenF,JohnsMR.1991.Effecto C/Nratioandaeration
onthefattyacid.CompositionfheterotrophicChlorella
sorokiniana[J].JournalofAppliedPhycology,3:203-209。
【111LaliberteG De-la-Nouee.1993.Auto、hetero、and
mixotrophicgrowthof Chlamydomonashumicola
(Chlorophceae)onacetate[J].JournalofPhyco ogy.
29:612.620.
【12JLeeYK,DingSYHoeCH,eta1.1996.Mixotrophic
growthofchlorellasorokinianain ourdoorenclosed
photobioreactor[J].J urnalofAppl括dPhycology,
8:163.169.
『131KitanoM,MatsukawaR,KarubeI.1998. Enhanced
eicosapentaenoicacidpr ductionbyNaviculasaprophila[J]。
JournalofAppliedPhycology.10:101.105.
f141GongXD,ChenF.1997.Optimizationofcul uremedium
forgrowthofHaematOCOCCBSpluvialislJl.Joumalof
AppliedPhycology,9:437.444.
(上接第13页)两播区的相似程度较低,1992年和
1994年两播区的相似程度更低。
3.3 以1994年播区为例的植物群落优势种季节变
化,白沙蒿的重要值和生物量占总量的比率逐月增
多,种的存在度稳定,表现出生态适宜种和抗干扰的
能力。蒙古沙拐枣的重要值和生物量占总量的比率在
6~8月间表现出平稳增长的趋势,而9月份有所下
降,但它是植物群落中的生态适宜种而相对稳定。沙
鞭的重要值和生物量随着季节变化而有所减少,表现
出衰退的趋势。因而,飞播种植白沙蒿、蒙古沙拐枣
是阿拉善沙地治理的有效措施。
参考文献
【1】 马海波,马卫东,任秀玲.1997.内蒙古阿拉善左旗15
年飞播牧草效益调查【J】.中国草地,1:59-63.
【15l
116】
【17】
【18】
119】
【20】
12l】
122】
123】
【24l
【25】
GutschowM.NwunlannU.SielerJ,eta1.1998.Influenceof
mediumco ponentsonastaxanthincontenta dproduction
ofHaematococcuspluviali 『J1.PmcessBioch mistry,33(4):
385.391.
ChenF-Michae】RJ.1996.Heterotrophicg wthof
Chlamydomonasrei h rdtiion acetatein chemostat
culture[J].ProcessBioch mistry,31(6):601-604.
ChenFChenH。GongXD.1997.Mixotrophicand
heterotrophicgrowthofHaematococcuspluvialisand
rheologicalbeh viourofthecellsusponsions[J].Bioresource
Technology,62:19-24.
DroopMR.1974.Heterotrophyofca bon[A].StewartWD
P.AlgalPhysiologyandBiochemistry[C].BerkeleyandLos
Angeles:UniversityofCal forniaPress.530—559.
OgawaT.AibaS. 1981.Bioenergenicanalys sof
mixotrophicgrowthinChlorellavu garisandScenedesmus
acutus[J].BiotechnolBioengng.23:1121.1132.
LintonJD,StephensonRJ.1978.Apreliminarystudon
growthtieldintelationtothecarbonandenergycontentof
variousrganicgrowthsubstrates[J].FEMSMicrobiology
Letters.3:95.98.
HeijnenJ J.RoelsJ A.1981.Amacroscopicmodal
describingyieldandmaintenancerelationshipsinaerobic
fermentation[J].BiotechnolBioengng.23:739.745.
L lucatJ,ImperialJ.ParesR.1984.Utilizationoflightfor
theassimilationoforganicmatterinChlorellasp.VG79[J1.
BiotechnolBioengng.26:667.681.
MartinezF.OlUSMI.1991.Interanctionsbetweenglocuse
andinorganiccarbonmetabolisminchlorellavu garisstrain
UAM101『J1.PlantPhysiol,95:1150.1155.
杨秀霞.2001.咸胞藻的异养和兼养的比较研究.硕士学
位论文.青岛海洋大学.
MakotoKitano,RitsnkoMatsukawa,IsaoKarube.1997.
Changesineicosapentaenoicacidc ntentofNavicula
saprophila..RhodomonassalinaandNitzschiasp.uender
mixptrophicconditions[J].JournalofApp矗edPhycology,
9:559—563.
f2】 任继周主编。1995。地农业生态学【M】。北京,中国农业出
版社.
【3】 陈文瑞主编.1965.沙坡头格状新月形沙丘水分状况的
研究.沙漠研究【M】.第七号,北京,科学出版社.
【414 杨根生,黄兆华,邸醒民,等著.1994.中国腾格里沙漠
东南缘自然环境特征及飞播治沙研究【M】,北京,
科学出版社.
【5l 郑师章,吴于红,王海波,陶芸编著.1994.普通生态
学原理、方法和应用[M】.上海:复旦大学出版社.
f6J6 周志宇,李锋瑞,陈亚明.2004.阿拉善荒漠不同密度自
沙蒿人工种群生长、繁殖与土壤水分的关系.生态学报,
24(5):895-899.
同 周志宇,付华,陈亚明.2003.阿拉善荒漠草地恢复演替过
程中物种多样性与生产力的变化.草业学报,12(1):3440.
【8】8 巫荣征.1991.荒漠地区草地初级生产力与水热条件关
系的初步研究[J】.中国草地,3:17.21.
【9】9 田永桢,李埃新,庞德胜.1998.腾格里沙漠东缘飞播固
沙植物群落特征研究[J].中国沙漠,(18)增刊1:88.90.
【10lD.米勒.唐布依斯,H埃仑伯格著;饱显诚,张绅,杨
邦顺,等译.1986.植被生态学的目的和方法【M】.北京,
科学出版社.
万方数据
阿拉善退化沙地飞播植物群落演替趋势研究
作者: 周志宇, 张冈, 马斌, 张莉丽, 高文星, ZHOU Zhi-yu, ZHANG Gang, MA Bin,
ZHANG Li-li, GAO Wen-xing
作者单位: 兰州大学草地农业科技学院,兰州,730020
刊名: 生态科学
英文刊名: ECOLOGIC SCIENCE
年,卷(期): 2007,26(1)

参考文献(10条)
1.陈文瑞 沙坡头格状新月形沙丘水分状况的研究.沙漠研究 1965
2.任继周 地农业生态学 1995
3.D 米勒 唐布依斯;H 埃仑伯格;饱显诚;张绅,杨邦顺 植被生态学的目的和方法 1986
4.马海波;马卫东;任秀玲 内蒙古阿拉善左旗15年飞播牧草效益调查 1997(01)
5.田永桢;李埃新;庞德胜 腾格里沙漠东缘飞播固沙植物群落特征研究 1998(z1)
6.巫荣征 荒漠地区草地初级生产力与水热条件关系的初步研究 1991(03)
7.周志宇;付华;陈亚明 阿拉善荒漠草地恢复演替过程中物种多样性与生产力的变化[期刊论文]-草业学报
2003(01)
8.周志宇;李锋瑞;陈亚明 阿拉善荒漠不同密度白沙蒿人工种群生长、繁殖与土壤水分的关系[期刊论文]-生态学报
2004(05)
9.郑师章;吴千红;王海波;陶芸 普通生态学原理、方法和应用 1994
10.杨根生;黄兆华;邸醒民 中国腾格里沙漠东南缘自然环境特征及飞播治沙研究 1994


本文链接:http://d.g.wanfangdata.com.cn/Periodical_stkx200701003.aspx