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2009年26卷2期

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确保我国粮食安全的战略途径发展牧草绿色蛋白质饲料,减少饲料用粮
2009, 3(2): 1-4.
[摘要](1346) [PDF 990KB](1770)
摘要:
不同水分因子对内蒙古典型草原牧草产量的影响
??琼, 魏学占, 宋学峰
2009, 3(2): 5-10.
[摘要](1802) [PDF 826KB](699)
摘要:
利用内蒙古典型草(cao)(cao)(cao)原区3个站点近15年的(de)天然牧(mu)草(cao)(cao)(cao)地上(shang)(shang)生物量(liang)、土(tu)壤(rang)水(shui)(shui)(shui)(shui)(shui)分(fen)(fen)(fen)和(he)气(qi)象观测(ce)资料,对(dui)降(jiang)水(shui)(shui)(shui)(shui)(shui)量(liang)、土(tu)壤(rang)水(shui)(shui)(shui)(shui)(shui)分(fen)(fen)(fen)和(he)耗(hao)(hao)水(shui)(shui)(shui)(shui)(shui)量(liang)与不同(tong)时期牧(mu)草(cao)(cao)(cao)产(chan)(chan)(chan)量(liang)的(de)关(guan)(guan)(guan)系进(jin)行了统计分(fen)(fen)(fen)析,建立了相(xiang)应(ying)的(de)经验方程(cheng)(cheng),结果表(biao)明(ming): 各水(shui)(shui)(shui)(shui)(shui)分(fen)(fen)(fen)因子与产(chan)(chan)(chan)量(liang)的(de)相(xiang)关(guan)(guan)(guan)性依次为(wei)土(tu)壤(rang)水(shui)(shui)(shui)(shui)(shui)分(fen)(fen)(fen)耗(hao)(hao)水(shui)(shui)(shui)(shui)(shui)量(liang)降(jiang)水(shui)(shui)(shui)(shui)(shui)量(liang);在(zai)时间尺度上(shang)(shang),水(shui)(shui)(shui)(shui)(shui)分(fen)(fen)(fen)对(dui)产(chan)(chan)(chan)量(liang)的(de)影(ying)响存在(zai)前期小中后期大(da)的(de)趋(qu)势,表(biao)现为(wei)随(sui)生长进(jin)程(cheng)(cheng)的(de)推进(jin),相(xiang)关(guan)(guan)(guan)程(cheng)(cheng)度逐渐增强,同(tong)时水(shui)(shui)(shui)(shui)(shui)分(fen)(fen)(fen)对(dui)产(chan)(chan)(chan)量(liang)的(de)影(ying)响存在(zai)累加效应(ying);一般情(qing)况下,典型草(cao)(cao)(cao)原牧(mu)草(cao)(cao)(cao)产(chan)(chan)(chan)量(liang)所需的(de)水(shui)(shui)(shui)(shui)(shui)分(fen)(fen)(fen)基(ji)本(ben)由0~50 cm土(tu)层提供;土(tu)壤(rang)水(shui)(shui)(shui)(shui)(shui)分(fen)(fen)(fen)和(he)耗(hao)(hao)水(shui)(shui)(shui)(shui)(shui)量(liang)与产(chan)(chan)(chan)草(cao)(cao)(cao)量(liang)的(de)关(guan)(guan)(guan)系用直(zhi)线(xian)或指数方程(cheng)(cheng)拟合效果较好,降(jiang)水(shui)(shui)(shui)(shui)(shui)与产(chan)(chan)(chan)草(cao)(cao)(cao)量(liang)的(de)关(guan)(guan)(guan)系多用二次曲线(xian)拟合。这些结论和(he)方程(cheng)(cheng)对(dui)牧(mu)草(cao)(cao)(cao)产(chan)(chan)(chan)量(liang)监测(ce)和(he)旱情(qing)评价(jia)、分(fen)(fen)(fen)析有(you)一定的(de)参考价(jia)值。
气候变化对新疆天山山区自然植被净第一性生产力的影响
2009, 3(2): 11-18.
[摘要](1618) [PDF 2720KB](998)
摘要:
在利(li)用(yong)天(tian)(tian)山(shan)(shan)(shan)(shan)山(shan)(shan)(shan)(shan)区10个有代表性(xing)的(de)气(qi)象台站(zhan)1961-2006年(nian)(nian)(nian)(nian)(nian)的(de)历史气(qi)候(hou)(hou)资(zi)料对(dui)年(nian)(nian)(nian)(nian)(nian)平均(jun)(jun)气(qi)温(wen)和年(nian)(nian)(nian)(nian)(nian)降水(shui)量(liang)(liang)(liang)变(bian)化(hua)(hua)规律进行统(tong)(tong)计(ji)(ji)分析(xi)的(de)基础上,采用(yong)周(zhou)广胜、张新(xin)时的(de)自(zi)然(ran)植(zhi)(zhi)(zhi)被净(jing)(jing)(jing)第(di)一(yi)性(xing)生(sheng)产(chan)(chan)力模型,计(ji)(ji)算(suan)了近46年(nian)(nian)(nian)(nian)(nian)天(tian)(tian)山(shan)(shan)(shan)(shan)山(shan)(shan)(shan)(shan)区自(zi)然(ran)植(zhi)(zhi)(zhi)被净(jing)(jing)(jing)第(di)一(yi)性(xing)生(sheng)产(chan)(chan)力的(de)变(bian)化(hua)(hua)特征,并据此建立(li)了自(zi)然(ran)植(zhi)(zhi)(zhi)被净(jing)(jing)(jing)第(di)一(yi)性(xing)生(sheng)产(chan)(chan)力与年(nian)(nian)(nian)(nian)(nian)平均(jun)(jun)气(qi)温(wen)和年(nian)(nian)(nian)(nian)(nian)降水(shui)量(liang)(liang)(liang)的(de)统(tong)(tong)计(ji)(ji)关系(xi),在此基础上,估算(suan)了未(wei)来气(qi)候(hou)(hou)变(bian)化(hua)(hua)对(dui)自(zi)然(ran)植(zhi)(zhi)(zhi)被净(jing)(jing)(jing)第(di)一(yi)性(xing)生(sheng)产(chan)(chan)力的(de)可(ke)能(neng)影(ying)响(xiang)。结果表明(ming),46年(nian)(nian)(nian)(nian)(nian)来,年(nian)(nian)(nian)(nian)(nian)平均(jun)(jun)气(qi)温(wen)以0.029 ℃/a的(de)速率(lv)升高(gao),年(nian)(nian)(nian)(nian)(nian)降水(shui)量(liang)(liang)(liang)以1.38 mm/a的(de)速率(lv)增(zeng)多(duo),受(shou)其影(ying)响(xiang),自(zi)然(ran)植(zhi)(zhi)(zhi)被净(jing)(jing)(jing)第(di)一(yi)性(xing)生(sheng)产(chan)(chan)力平均(jun)(jun)以0.013 t/(hm2a)的(de)速率(lv)增(zeng)长。20世纪70年(nian)(nian)(nian)(nian)(nian)代初是天(tian)(tian)山(shan)(shan)(shan)(shan)山(shan)(shan)(shan)(shan)区气(qi)候(hou)(hou)暖(nuan)湿化(hua)(hua)变(bian)化(hua)(hua)和自(zi)然(ran)植(zhi)(zhi)(zhi)被净(jing)(jing)(jing)第(di)一(yi)性(xing)生(sheng)产(chan)(chan)力开始明(ming)显增(zeng)长的(de)突(tu)变(bian)点。未(wei)来气(qi)候(hou)(hou)的(de)暖(nuan)湿化(hua)(hua)变(bian)化(hua)(hua)对(dui)提高(gao)天(tian)(tian)山(shan)(shan)(shan)(shan)山(shan)(shan)(shan)(shan)区自(zi)然(ran)植(zhi)(zhi)(zhi)被净(jing)(jing)(jing)第(di)一(yi)性(xing)生(sheng)产(chan)(chan)力将(jiang)产(chan)(chan)生(sheng)积极(ji)影(ying)响(xiang),平均(jun)(jun)而言(yan),在其他条件不变(bian)的(de)前(qian)提下,年(nian)(nian)(nian)(nian)(nian)平均(jun)(jun)气(qi)温(wen)每(mei)升高(gao)1 ℃或年(nian)(nian)(nian)(nian)(nian)降水(shui)量(liang)(liang)(liang)每(mei)增(zeng)多(duo)10%,自(zi)然(ran)植(zhi)(zhi)(zhi)被净(jing)(jing)(jing)第(di)一(yi)性(xing)生(sheng)产(chan)(chan)力将(jiang)增(zeng)加4%~5%。
态恢复治理成本测算方法初探 以黑龙江省鸡西煤矿区滴道林场矸石山治理为例
2009, 3(2): 19-26.
[摘要](1592) [PDF 1657KB](939)
摘要:
目前我国森(sen)林覆盖率明显下降,植(zhi)被(尤其是矿(kuang)(kuang)区植(zhi)被)受破坏(huai)严重,急(ji)需要(yao)对(dui)其进(jin)(jin)行矿(kuang)(kuang)区植(zhi)被保(bao)护(hu)与生态(tai)(tai)恢(hui)复(fu)(fu)(fu)。为(wei)了(le)有足够(gou)的(de)经(jing)(jing)济能力(li)更加有效合理(li)(li)(li)地恢(hui)复(fu)(fu)(fu)矿(kuang)(kuang)区植(zhi)被,研究通过(guo)为(wei)其治理(li)(li)(li)成(cheng)(cheng)本建(jian)立数学模(mo)型的(de)方(fang)法,进(jin)(jin)行矿(kuang)(kuang)区植(zhi)被恢(hui)复(fu)(fu)(fu)治理(li)(li)(li)成(cheng)(cheng)本核(he)算(suan)。并以黑龙江省鸡(ji)西矿(kuang)(kuang)业(ye)集团(tuan)林业(ye)分公司下属(shu)的(de)一个植(zhi)被恢(hui)复(fu)(fu)(fu)区滴(di)道林场的(de)矸石山治理(li)(li)(li)为(wei)例,对(dui)林草(cao)结(jie)合的(de)矿(kuang)(kuang)区植(zhi)被恢(hui)复(fu)(fu)(fu)方(fang)式及成(cheng)(cheng)本费(fei)用进(jin)(jin)行了(le)充(chong)分的(de)实证研究并应用数学模(mo)型,最后得(de)出(chu)了(le)治理(li)(li)(li)成(cheng)(cheng)本因其治理(li)(li)(li)模(mo)式的(de)不同(tong)而不同(tong)且治理(li)(li)(li)成(cheng)(cheng)本巨大(da),矿(kuang)(kuang)业(ye)集团(tuan)是否有这么大(da)的(de)经(jing)(jing)济实力(li)的(de)确有待评(ping)估的(de)结(jie)论,并提出(chu)了(le)加强技术攻(gong)关、加大(da)投资力(li)度适时开展矿(kuang)(kuang)区植(zhi)被保(bao)护(hu)与生态(tai)(tai)恢(hui)复(fu)(fu)(fu)的(de)全面试点的(de)建(jian)议,为(wei)国家(jia)制定(ding)生态(tai)(tai)补偿标准提供参考。
酒泉市退牧还草工程对植被恢复的影响
2009, 3(2): 27-32.
[摘要](1527) [PDF 2238KB](807)
摘要:
自2003年(nian)开始(shi),分别在酒(jiu)泉市3个退牧(mu)(mu)(mu)(mu)(mu)还(hai)草(cao)项(xiang)目(mu)试(shi)点县的半荒漠草(cao)原(yuan),对禁(jin)牧(mu)(mu)(mu)(mu)(mu)、休牧(mu)(mu)(mu)(mu)(mu)、补播(bo)(bo)和(he)轮(lun)牧(mu)(mu)(mu)(mu)(mu)4项(xiang)基(ji)本措(cuo)施在植被(bei)恢(hui)复(fu)中的实际效果进行了连续5年(nian)的定点观测(ce)。结果表(biao)明: 就植物多样(yang)性、盖度(du)、高度(du)和(he)产草(cao)量(liang)的综合效应而言(yan),4项(xiang)基(ji)本措(cuo)施对植被(bei)恢(hui)复(fu)均存在显著的促(cu)进作用,其中,禁(jin)牧(mu)(mu)(mu)(mu)(mu)和(he)补播(bo)(bo)的效果均显著优于休牧(mu)(mu)(mu)(mu)(mu)和(he)轮(lun)牧(mu)(mu)(mu)(mu)(mu);对于退化较为严(yan)重且以生态恢(hui)复(fu)为基(ji)本宗旨的草(cao)原(yuan)建(jian)(jian)设而言(yan),最佳选择方(fang)案为禁(jin)牧(mu)(mu)(mu)(mu)(mu)4~5年(nian);若以兼顾(gu)生态恢(hui)复(fu)与牧(mu)(mu)(mu)(mu)(mu)业(ye)生产双重效益为目(mu)标,则在禁(jin)牧(mu)(mu)(mu)(mu)(mu)的同时辅之以补播(bo)(bo)的方(fang)案更(geng)(geng)为可取;当建(jian)(jian)设目(mu)的更(geng)(geng)偏重于牧(mu)(mu)(mu)(mu)(mu)业(ye)生产,但(dan)同时要求对草(cao)地植被(bei)不能造成(cheng)严(yan)重负面(mian)影响时,最佳的方(fang)案应为轮(lun)牧(mu)(mu)(mu)(mu)(mu),但(dan)应尽量(liang)避免(mian)或减少春秋季放(fang)牧(mu)(mu)(mu)(mu)(mu)。
云南岩溶区的石漠化与综合治理
2009, 3(2): 33-38.
[摘要](1672) [PDF 891KB](1017)
摘要:
对云(yun)南(nan)(nan)岩(yan)(yan)溶(rong)石(shi)(shi)(shi)漠(mo)化分(fen)(fen)布现状、成因和(he)危害(hai)进行分(fen)(fen)析,指出石(shi)(shi)(shi)漠(mo)化土(tu)地(di)(di)在云(yun)南(nan)(nan)省各地(di)(di)州市均(jun)有分(fen)(fen)布,不同(tong)地(di)(di)区石(shi)(shi)(shi)漠(mo)化分(fen)(fen)布规模和(he)危害(hai)程(cheng)度(du)不同(tong);石(shi)(shi)(shi)漠(mo)化具自(zi)北向南(nan)(nan)分(fen)(fen)布面积逐(zhu)渐增(zeng)多、石(shi)(shi)(shi)漠(mo)化程(cheng)度(du)逐(zhu)渐加重(zhong)的特点,滇东较滇西严重(zhong);强烈的人类活动为(wei)石(shi)(shi)(shi)漠(mo)化的主导驱动力;石(shi)(shi)(shi)漠(mo)化加速了生(sheng)态(tai)(tai)环境恶化,主要表现为(wei)水(shui)土(tu)流失(shi)、河道淤积和(he)自(zi)然灾害(hai)频繁,导致土(tu)地(di)(di)资源丧失(shi)和(he)非地(di)(di)带性干旱等。在综合西南(nan)(nan)岩(yan)(yan)溶(rong)石(shi)(shi)(shi)漠(mo)区治理经(jing)验的基础上,总结出封山育林植被恢(hui)复、草地(di)(di)畜牧业、生(sheng)态(tai)(tai)移民模式,以及坡(po)改(gai)梯、立体生(sheng)态(tai)(tai)农业和(he)养殖-沼气(qi)-种植三位一(yi)体的生(sheng)态(tai)(tai)农业模式适于(yu)云(yun)南(nan)(nan)岩(yan)(yan)溶(rong)不同(tong)石(shi)(shi)(shi)漠(mo)区推广(guang)应用。
高寒草地土壤种子库研究进展及展望
2009, 3(2): 39-46.
[摘要](2061) [PDF 911KB](913)
摘要:
土(tu)壤(rang)(rang)种子(zi)(zi)库是(shi)(shi)指存(cun)在于(yu)土(tu)壤(rang)(rang)上(shang)层凋落(luo)物(wu)和(he)土(tu)壤(rang)(rang)中全部存(cun)活种子(zi)(zi)的(de)(de)总和(he)。土(tu)壤(rang)(rang)种子(zi)(zi)库理(li)论(lun)作(zuo)为(wei)群(qun)落(luo)生(sheng)(sheng)(sheng)态(tai)学(xue)和(he)恢(hui)(hui)复生(sheng)(sheng)(sheng)态(tai)学(xue)的(de)(de)基础(chu)理(li)论(lun),是(shi)(shi)退化生(sheng)(sheng)(sheng)态(tai)系统重(zhong)(zhong)建的(de)(de)重(zhong)(zhong)要组成(cheng)部分,已成(cheng)为(wei)植(zhi)(zhi)(zhi)物(wu)生(sheng)(sheng)(sheng)态(tai)学(xue)研(yan)究(jiu)的(de)(de)热(re)点问题。研(yan)究(jiu)土(tu)壤(rang)(rang)种子(zi)(zi)库是(shi)(shi)对生(sheng)(sheng)(sheng)物(wu)多样性研(yan)究(jiu)的(de)(de)一个重(zhong)(zhong)要补充,有(you)助于(yu)对植(zhi)(zhi)(zhi)被(bei)更新(xin)和(he)植(zhi)(zhi)(zhi)被(bei)演替动(dong)态(tai)的(de)(de)了(le)解,对于(yu)植(zhi)(zhi)(zhi)被(bei)重(zhong)(zhong)建与恢(hui)(hui)复具有(you)重(zhong)(zhong)要意义,更有(you)利于(yu)指导生(sheng)(sheng)(sheng)产实践。草地土(tu)壤(rang)(rang)种子(zi)(zi)库作(zuo)为(wei)潜在的(de)(de)植(zhi)(zhi)(zhi)物(wu)群(qun)落(luo), 是(shi)(shi)种群(qun)的(de)(de)定(ding)居、生(sheng)(sheng)(sheng)存(cun)、繁衍和(he)扩散(san)的(de)(de)基础(chu), 是(shi)(shi)草地未来(lai)地上(shang)植(zhi)(zhi)(zhi)被(bei)发生(sheng)(sheng)(sheng)的(de)(de)源泉。从草地尤其(qi)是(shi)(shi)高(gao)寒(han)(han)草地土(tu)壤(rang)(rang)种子(zi)(zi)库的(de)(de)研(yan)究(jiu)方法、研(yan)究(jiu)内容、意义及存(cun)在的(de)(de)问题等方面进行系统的(de)(de)总结(jie)并展望了(le)未来(lai)的(de)(de)研(yan)究(jiu)趋(qu)势,以期(qi)为(wei)将来(lai)高(gao)寒(han)(han)草地土(tu)壤(rang)(rang)种子(zi)(zi)库的(de)(de)研(yan)究(jiu)提(ti)供(gong)一些理(li)论(lun)基础(chu),并为(wei)高(gao)寒(han)(han)草地的(de)(de)植(zhi)(zhi)(zhi)被(bei)重(zhong)(zhong)建和(he)恢(hui)(hui)复提(ti)供(gong)理(li)论(lun)指导。
野生大豆碱胁迫反应的研究
2009, 3(2): 47-52.
[摘要](2564) [PDF 994KB](621)
摘要:
从(cong)吉(ji)林省白城市(shi)盐(yan)碱(jian)地采集了(le)野生大豆(dou)Glycine soja 345份(fen),用不同(tong)盐(yan)碱(jian)化程度(du)的(de)(de)盐(yan)碱(jian)土(tu)从(cong)播种开始胁(xie)迫,随着盐(yan)碱(jian)胁(xie)迫程度(du)增加,发(fa)(fa)芽(ya)率(lv)(lv)和株高(gao)逐(zhu)渐降低,pH值为9.02可(ke)抑制50%野生大豆(dou)的(de)(de)萌发(fa)(fa)和生长。用浓度(du)为0、50、75、150、300、500 mmol/L的(de)(de)NaHCO3胁(xie)迫3周(zhou)龄(ling)幼(you)苗,浓度(du)为0、50 mmol/L时幼(you)苗可(ke)以正(zheng)常存活,浓度(du)为75、150、300、500 mmol/L时幼(you)苗分别于19、6.5、3、0.5 h左右开始萎蔫(nian)。筛选能(neng)够在pH值9.0的(de)(de)盐(yan)碱(jian)土(tu)中发(fa)(fa)芽(ya)、生长、开花、结实的(de)(de)野生大豆(dou)材(cai)料,选择其中发(fa)(fa)芽(ya)率(lv)(lv)和结实率(lv)(lv)均(jun)较高(gao)的(de)(de)9份(fen)材(cai)料,测定了(le)叶绿素含(han)量(liang)(liang)、相对电(dian)导率(lv)(lv)和丙二醛(quan)含(han)量(liang)(liang),编号为G07048、G07092和G07256的(de)(de)3份(fen)材(cai)料在胁(xie)迫前(qian)后3个指标差异不显著,具有较强(qiang)的(de)(de)耐盐(yan)碱(jian)能(neng)力。
7种委陵菜属植物叶表皮微形态的研究
2009, 3(2): 53-56.
[摘要](1651) [PDF 1988KB](720)
摘要:
摘(zhai)要(yao): 利用光学显(xian)微(wei)(wei)镜对(dui)沈阳地(di)区7种(zhong)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)属Potentilla植物的(de)(de)(de)叶(ye)(ye)表(biao)(biao)皮(pi)微(wei)(wei)形态进行研究(jiu),结果表(biao)(biao)明: 7种(zhong)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)上(shang)(shang)、下(xia)(xia)叶(ye)(ye)表(biao)(biao)皮(pi)细胞垂周壁上(shang)(shang)均(jun)有不(bu)同(tong)程度的(de)(de)(de)波浪(lang)状(zhuang)增(zeng)厚,使(shi)表(biao)(biao)皮(pi)细胞间(jian)的(de)(de)(de)结合更加紧密,增(zeng)强(qiang)了叶(ye)(ye)的(de)(de)(de)抗(kang)逆性(xing)和(he)(he)机械支(zhi)撑(cheng)能力(li),根据表(biao)(biao)皮(pi)细胞形状(zhuang)可将叶(ye)(ye)表(biao)(biao)皮(pi)微(wei)(wei)形态分(fen)为3种(zhong)类型: 1)多边形: 蔓(man)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)P. flagella、莓叶(ye)(ye)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)P. fragarioides、翻(fan)白(bai)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)P.discolor、伏委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)P.paradoxa和(he)(he)三叶(ye)(ye)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)P.freyniana的(de)(de)(de)上(shang)(shang)表(biao)(biao)皮(pi);2)近多边形: 羽叶(ye)(ye)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)P.multicaulis、蛇含(han)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)P.kalinin的(de)(de)(de)上(shang)(shang)表(biao)(biao)皮(pi)和(he)(he)莓叶(ye)(ye)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、伏委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)的(de)(de)(de)下(xia)(xia)表(biao)(biao)皮(pi);3)不(bu)规则(ze)形: 蔓(man)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、翻(fan)白(bai)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、羽叶(ye)(ye)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、蛇含(han)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)和(he)(he)三叶(ye)(ye)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)的(de)(de)(de)下(xia)(xia)表(biao)(biao)皮(pi)。7种(zhong)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)气(qi)(qi)孔(kong)(kong)器分(fen)布(bu)特点: 莓叶(ye)(ye)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、翻(fan)白(bai)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、伏委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)和(he)(he)三叶(ye)(ye)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)的(de)(de)(de)上(shang)(shang)表(biao)(biao)皮(pi)无气(qi)(qi)孔(kong)(kong)器分(fen)布(bu);蔓(man)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)上(shang)(shang)表(biao)(biao)皮(pi)的(de)(de)(de)气(qi)(qi)孔(kong)(kong)器零星分(fen)布(bu);羽叶(ye)(ye)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、蛇含(han)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)的(de)(de)(de)上(shang)(shang)表(biao)(biao)皮(pi)和(he)(he)蔓(man)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、羽叶(ye)(ye)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、蛇含(han)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、莓叶(ye)(ye)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、翻(fan)白(bai)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、伏委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)和(he)(he)三叶(ye)(ye)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)的(de)(de)(de)下(xia)(xia)表(biao)(biao)皮(pi)均(jun)有气(qi)(qi)孔(kong)(kong)器分(fen)布(bu)。在(zai)7种(zhong)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)的(de)(de)(de)下(xia)(xia)表(biao)(biao)皮(pi)中莓叶(ye)(ye)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、羽叶(ye)(ye)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)和(he)(he)翻(fan)白(bai)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)的(de)(de)(de)气(qi)(qi)孔(kong)(kong)指数相对(dui)较大,蔓(man)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、伏委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、蛇含(han)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)和(he)(he)三叶(ye)(ye)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)气(qi)(qi)孔(kong)(kong)指数相对(dui)较小(xiao),蔓(man)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、羽叶(ye)(ye)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)和(he)(he)蛇含(han)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)的(de)(de)(de)上(shang)(shang)表(biao)(biao)皮(pi)气(qi)(qi)孔(kong)(kong)指数明显(xian)小(xiao)于其下(xia)(xia)表(biao)(biao)皮(pi)。通过对(dui)7种(zhong)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)气(qi)(qi)孔(kong)(kong)指数的(de)(de)(de)比较研究(jiu)表(biao)(biao)明,蔓(man)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、伏委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、蛇含(han)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)和(he)(he)三叶(ye)(ye)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)具有很强(qiang)的(de)(de)(de)抗(kang)旱能力(li)。
利用隶属函数法对4种地被植物的耐热性综合评价
2009, 3(2): 57-60.
[摘要](2131) [PDF 483KB](881)
摘要:
采用盆栽试验,在高温胁迫(po)条件下,通过(guo)测(ce)定(ding)4种(zhong)地(di)被植(zhi)物的细胞质外(wai)渗(shen)率、丙二醛含量、超氧(yang)化物歧化酶(mei)(mei)活(huo)性、过(guo)氧(yang)化物酶(mei)(mei)活(huo)性和脯氨酸(suan)、可溶性糖(tang)、可溶性蛋白质及叶(ye)绿素的含量等(deng)生理指(zhi)标(biao),利用隶属(shu)函数(shu)(shu)(shu)法(fa)对4种(zhong)地(di)被植(zhi)物进行(xing)了耐热(re)性综合(he)评价(jia)。通过(guo)综合(he)隶属(shu)函数(shu)(shu)(shu)值(zhi)评定(ding)的耐热(re)性强弱顺序(xu)为:广西(xi)过(guo)路黄Lyaimachia alfredii花叶(ye)过(guo)路黄L.christinae var huaye聚花过(guo)路黄L.congestiflora金叶(ye)过(guo)路黄L.nummulariaAurea,这一结果与4种(zhong)植(zhi)物的实际(ji)表现相一致。结果表明,模糊隶属(shu)函数(shu)(shu)(shu)法(fa)可以避免单一指(zhi)标(biao)的片面性,能较全面地(di)评价(jia)地(di)被植(zhi)物的耐热(re)性。
不同品种白三叶蛋白质含量比较
2009, 3(2): 61-65.
[摘要](1738) [PDF 2209KB](881)
摘要:
通过(guo)对(dui)10个不(bu)(bu)同白三(san)叶Trifolium repens品(pin)种(zhong)在不(bu)(bu)同生育期内(nei)叶片和全(quan)株蛋(dan)白质(zhi)(zhi)(zhi)含(han)量(liang)的(de)测定(ding)分(fen)析,结果表明: 不(bu)(bu)同品(pin)种(zhong)或(huo)同一品(pin)种(zhong)不(bu)(bu)同生育期的(de)白三(san)叶蛋(dan)白质(zhi)(zhi)(zhi)含(han)量(liang)差异极显著(P0.01),蛋(dan)白质(zhi)(zhi)(zhi)含(han)量(liang)在生育期内(nei)呈(cheng)单(dan)峰曲线变化,并(bing)以初花(hua)期为(wei)蛋(dan)白质(zhi)(zhi)(zhi)含(han)量(liang)降低的(de)转折点;北京地区(qu)适宜种(zhong)植的(de)白三(san)叶品(pin)种(zhong)为(wei)海法、汉口(kou)和吉林临江,其最佳利用时期为(wei)初花(hua)期。
3种乳酸菌制剂对苜蓿和羊草的青贮效果
2009, 3(2): 66-71.
[摘要](2201) [PDF 566KB](861)
摘要:
以(yi)苜蓿(xu)Medicago stativa和(he)(he)羊草(cao)Leymus chinensis为(wei)研(yan)究对(dui)象,通过对(dui)其发酵品质(zhi)和(he)(he)化学成(cheng)分的(de)(de)(de)研(yan)究,探讨Lalsil Dry(LD)、H/MF INOCULANT(H/MF)和(he)(he)青(qing)(qing)宝II号(hao)(FS)3种乳(ru)酸(suan)(suan)(suan)(suan)菌(jun)(jun)制(zhi)(zhi)剂对(dui)羊草(cao)和(he)(he)苜蓿(xu)青(qing)(qing)贮(zhu)(zhu)(zhu)(zhu)的(de)(de)(de)影(ying)响。结(jie)果表明: 羊草(cao)直(zhi)接青(qing)(qing)贮(zhu)(zhu)(zhu)(zhu)较易成(cheng)功(gong),添(tian)加LD、FS和(he)(he)质(zhi)量(liang)分数0.01%的(de)(de)(de)H/MF可以(yi)显著提高青(qing)(qing)贮(zhu)(zhu)(zhu)(zhu)料(liao)乳(ru)酸(suan)(suan)(suan)(suan)生(sheng)成(cheng)量(liang)(P0.05),显著降低丁(ding)酸(suan)(suan)(suan)(suan)生(sheng)成(cheng)量(liang)(P0.05),获得(de)优(you)质(zhi)的(de)(de)(de)青(qing)(qing)贮(zhu)(zhu)(zhu)(zhu)饲料(liao);苜蓿(xu)直(zhi)接青(qing)(qing)贮(zhu)(zhu)(zhu)(zhu)pH值和(he)(he)丁(ding)酸(suan)(suan)(suan)(suan)含(han)量(liang)较高,不能调制(zhi)(zhi)优(you)质(zhi)青(qing)(qing)贮(zhu)(zhu)(zhu)(zhu)饲料(liao),在试验中(zhong)添(tian)加3种乳(ru)酸(suan)(suan)(suan)(suan)菌(jun)(jun)制(zhi)(zhi)剂亦未获得(de)优(you)质(zhi)的(de)(de)(de)青(qing)(qing)贮(zhu)(zhu)(zhu)(zhu)料(liao),但(dan)LD处理组和(he)(he)0.002 5% FS处理对(dui)青(qing)(qing)贮(zhu)(zhu)(zhu)(zhu)料(liao)的(de)(de)(de)发酵品质(zhi)较对(dui)照有一定的(de)(de)(de)改(gai)善。另外,3种乳(ru)酸(suan)(suan)(suan)(suan)菌(jun)(jun)制(zhi)(zhi)剂处理青(qing)(qing)贮(zhu)(zhu)(zhu)(zhu)料(liao)中(zhong)的(de)(de)(de)中(zhong)性洗(xi)涤(di)纤(xian)(xian)维和(he)(he)酸(suan)(suan)(suan)(suan)性洗(xi)涤(di)纤(xian)(xian)维含(han)量(liang)与对(dui)照无(wu)显著差异(P0.05)。
施肥水平和不同株高刈割对王草产量和品质的影响
2009, 3(2): 72-75.
[摘要](1812) [PDF 434KB](748)
摘要:
生长(zhang)第1年(nian)不同(tong)刈(yi)(yi)(yi)(yi)割(ge)(ge)(ge)株(zhu)(zhu)(zhu)高(gao)的(de)王草(cao)(cao)(cao)(cao)Pennisetum purpureumP.typhoideum年(nian)产(chan)(chan)草(cao)(cao)(cao)(cao)量(liang)(liang)随(sui)刈(yi)(yi)(yi)(yi)割(ge)(ge)(ge)株(zhu)(zhu)(zhu)高(gao)增(zeng)(zeng)高(gao)呈增(zeng)(zeng)加趋势(shi),刈(yi)(yi)(yi)(yi)割(ge)(ge)(ge)株(zhu)(zhu)(zhu)高(gao)220 cm时(shi)鲜草(cao)(cao)(cao)(cao)、风干草(cao)(cao)(cao)(cao)产(chan)(chan)量(liang)(liang)最(zui)高(gao),产(chan)(chan)量(liang)(liang)受施肥影响(xiang)很大。茎叶比与刈(yi)(yi)(yi)(yi)割(ge)(ge)(ge)株(zhu)(zhu)(zhu)高(gao)之间存在显(xian)著(zhu)(zhu)的(de)相(xiang)关性(xing),其受施肥影响(xiang)较小。营养物质中(zhong),粗(cu)(cu)蛋(dan)白(bai)、粗(cu)(cu)脂肪、粗(cu)(cu)灰(hui)分含(han)(han)(han)(han)量(liang)(liang)均随(sui)刈(yi)(yi)(yi)(yi)割(ge)(ge)(ge)株(zhu)(zhu)(zhu)高(gao)的(de)增(zeng)(zeng)加而降低(di),粗(cu)(cu)蛋(dan)白(bai)含(han)(han)(han)(han)量(liang)(liang)和(he)刈(yi)(yi)(yi)(yi)割(ge)(ge)(ge)株(zhu)(zhu)(zhu)高(gao)之间存在极显(xian)著(zhu)(zhu)的(de)线性(xing)负相(xiang)关,钙(gai)含(han)(han)(han)(han)量(liang)(liang)和(he)中(zhong)性(xing)洗涤纤(xian)维(NDF)、酸(suan)性(xing)洗涤纤(xian)维(ADF)、酸(suan)性(xing)洗涤木质素(su)(ADL)含(han)(han)(han)(han)量(liang)(liang)则随(sui)着刈(yi)(yi)(yi)(yi)割(ge)(ge)(ge)株(zhu)(zhu)(zhu)高(gao)增(zeng)(zeng)加而呈增(zeng)(zeng)加趋势(shi),与刈(yi)(yi)(yi)(yi)割(ge)(ge)(ge)株(zhu)(zhu)(zhu)高(gao)呈显(xian)著(zhu)(zhu)正相(xiang)关。从草(cao)(cao)(cao)(cao)产(chan)(chan)量(liang)(liang)、粗(cu)(cu)蛋(dan)白(bai)含(han)(han)(han)(han)量(liang)(liang)和(he)产(chan)(chan)量(liang)(liang)角度来评价(jia)(jia),生长(zhang)第1年(nian)的(de)王草(cao)(cao)(cao)(cao)在株(zhu)(zhu)(zhu)高(gao)为100 cm施肥时(shi)刈(yi)(yi)(yi)(yi)割(ge)(ge)(ge)利用价(jia)(jia)值(zhi)最(zui)高(gao)。
刈割次数对杂交甜高粱草产量及品质的影响
2009, 3(2): 76-79.
[摘要](2206) [PDF 479KB](708)
摘要:
针对当前春夏青绿饲草短缺(que)现状,试验以2001年引入的杂(za)交甜高(gao)(gao)粱新品种甜格雷兹Sorghum bicolour var.Sugargraze为试材,进行刈割(ge)(ge)次(ci)数研究。结果表明: 随着刈割(ge)(ge)次(ci)数的增加,鲜(xian)(xian)草、干(gan)草和粗蛋(dan)(dan)白产量降低,单位品质含量增加。其(qi)中1次(ci)刈割(ge)(ge)产鲜(xian)(xian)草、干(gan)草和粗蛋(dan)(dan)白质量最(zui)高(gao)(gao),分(fen)别(bie)为: 110.78、29.75和1.25 t/hm2, 2次(ci)刈割(ge)(ge)次(ci)之,且糖锤度高(gao)(gao),适(shi)口性好,利于(yu)饲喂(wei);3次(ci)刈割(ge)(ge)则较(jiao)低,不宜采用(yong)。
刈割对牧草生物量和品质影响的研究进展
2009, 3(2): 80-85.
[摘要](2127) [PDF 719KB](697)
摘要:
刈(yi)割(ge)(ge)是(shi)一种常见的草(cao)地利(li)(li)用(yong)和管理(li)方式,它(ta)可以(yi)(yi)(yi)通(tong)过两方面途径来影(ying)响(xiang)牧(mu)(mu)(mu)草(cao)产(chan)量(liang)(liang)及品(pin)质。首先,刈(yi)割(ge)(ge)可以(yi)(yi)(yi)利(li)(li)用(yong)植物(wu)的补偿性生(sheng)(sheng)长(zhang),促进(jin)牧(mu)(mu)(mu)草(cao)生(sheng)(sheng)长(zhang)并提高牧(mu)(mu)(mu)草(cao)产(chan)量(liang)(liang)。其次(ci),刈(yi)割(ge)(ge)可以(yi)(yi)(yi)利(li)(li)用(yong)植物(wu)均衡性生(sheng)(sheng)长(zhang)特性,改变牧(mu)(mu)(mu)草(cao)营养物(wu)质的沉积和分配方向,进(jin)而(er)影(ying)响(xiang)牧(mu)(mu)(mu)草(cao)品(pin)质。常见的刈(yi)割(ge)(ge)包括刈(yi)割(ge)(ge)频次(ci)、刈(yi)割(ge)(ge)时间和刈(yi)割(ge)(ge)方式。全面综述(shu)3种刈(yi)割(ge)(ge)对(dui)牧(mu)(mu)(mu)草(cao)产(chan)量(liang)(liang)及品(pin)质影(ying)响(xiang)和相应作用(yong)机(ji)理(li),为适当利(li)(li)用(yong)刈(yi)割(ge)(ge)提高牧(mu)(mu)(mu)草(cao)产(chan)量(liang)(liang)及品(pin)质提供参考。
免耕春小麦套种牧草土壤养分动态研究
2009, 3(2): 86-90.
[摘要](1876) [PDF 2067KB](697)
摘要:
研究免(mian)耕春小麦(mai)Triticum aestivum套(tao)(tao)(tao)种牧草土(tu)(tu)壤(rang)养(yang)分(fen)的(de)动态变化(hua),分(fen)析了小麦(mai)套(tao)(tao)(tao)种白(bai)花草木(mu)樨Melilotus albus、野豌(wan)豆Vicia villosa、英(ying)吉沙豌(wan)豆Pisum sativum、玉米Zea mays、毛苕子V.villosa对土(tu)(tu)壤(rang)有机(ji)质(zhi)、碱(jian)解氮和速(su)(su)效(xiao)(xiao)磷的(de)影响(xiang)。结果表明,套(tao)(tao)(tao)种牧草能(neng)提高土(tu)(tu)壤(rang)有机(ji)质(zhi)、碱(jian)解氮和速(su)(su)效(xiao)(xiao)磷的(de)含(han)量(liang)(liang),特别是套(tao)(tao)(tao)种白(bai)花草木(mu)樨和套(tao)(tao)(tao)种野豌(wan)豆增(zeng)加更为明显,其中套(tao)(tao)(tao)种白(bai)花草木(mu)樨土(tu)(tu)壤(rang)碱(jian)解氮含(han)量(liang)(liang)增(zeng)加4.8 mg/kg,增(zeng)幅19.4%,套(tao)(tao)(tao)种野豌(wan)豆土(tu)(tu)壤(rang)有机(ji)质(zhi)增(zeng)加0.39 g/kg,增(zeng)幅1.6%,土(tu)(tu)壤(rang)速(su)(su)效(xiao)(xiao)磷含(han)量(liang)(liang)增(zeng)加了8 mg/kg,增(zeng)幅23.9%;土(tu)(tu)壤(rang)有机(ji)质(zhi)、碱(jian)解氮和速(su)(su)效(xiao)(xiao)磷含(han)量(liang)(liang)随土(tu)(tu)层深度(du)的(de)增(zeng)加而(er)降低。
甘肃草原鼠害区划研究
2009, 3(2): 91-99.
[摘要](1747) [PDF 874KB](732)
摘要:
甘肃(su)草(cao)原(yuan)(yuan)(yuan)啮(nie)齿(chi)类(lei)(lei)(lei)(lei)动(dong)(dong)物(wu)区(qu)(qu)系由68种(zhong)组成(cheng),占全省啮(nie)齿(chi)动(dong)(dong)物(wu)总(zong)种(zhong)数(shu)的(de)75.6%,其中(zhong),大多数(shu)种(zhong)的(de)种(zhong)群密(mi)度(du)不(bu)超(chao)过经(jing)(jing)济损害(hai)(hai)(hai)水(shui)平,有(you)一定(ding)的(de)生态学价值;有(you)18~26种(zhong)的(de)种(zhong)群密(mi)度(du)几(ji)乎经(jing)(jing)常(chang)维持在经(jing)(jing)济损害(hai)(hai)(hai)水(shui)平以上,是(shi)不(bu)同草(cao)原(yuan)(yuan)(yuan)类(lei)(lei)(lei)(lei)型的(de)优(you)势(shi)种(zhong)害(hai)(hai)(hai)鼠(shu)(shu)。草(cao)原(yuan)(yuan)(yuan)鼠(shu)(shu)害(hai)(hai)(hai)区(qu)(qu)划工作(zuo)应遵循(xun)历史发展、生态适应和生产实(shi)践的(de)原(yuan)(yuan)(yuan)则。以草(cao)原(yuan)(yuan)(yuan)啮(nie)齿(chi)动(dong)(dong)物(wu)区(qu)(qu)系组成(cheng)、地(di)带(dai)性(xing)生物(wu)气候和地(di)带(dai)性(xing)植被为(wei)指标将(jiang)甘肃(su)草(cao)原(yuan)(yuan)(yuan)鼠(shu)(shu)害(hai)(hai)(hai)划分为(wei)5个区(qu)(qu);以具有(you)一定(ding)优(you)势(shi)的(de)地(di)带(dai)性(xing)草(cao)原(yuan)(yuan)(yuan)类(lei)(lei)(lei)(lei)型,具有(you)代(dai)表性(xing)鼠(shu)(shu)类(lei)(lei)(lei)(lei)分布型和优(you)势(shi)种(zhong)害(hai)(hai)(hai)鼠(shu)(shu)为(wei)指标,将(jiang)甘肃(su)草(cao)原(yuan)(yuan)(yuan)鼠(shu)(shu)害(hai)(hai)(hai)划分为(wei)13个草(cao)原(yuan)(yuan)(yuan)鼠(shu)(shu)害(hai)(hai)(hai)亚(ya)区(qu)(qu)。
3种鼢鼠线粒体DNA控制区结构及其系统发育分析
2009, 3(2): 100-106.
[摘要](1485) [PDF 1907KB](642)
摘要:
采用PCR 产物直接测序法测定了3种鼢鼠(shu)(shu)(shu)(shu)Mospalax spp.18个个体的(de)线粒体控制区(qu)(qu)(Control region)核苷酸全序列(lie),并进(jin)行了结构分(fen)(fen)析。通过(guo)与仓(cang)鼠(shu)(shu)(shu)(shu)亚科(ke)其他啮齿动(dong)物的(de)控制区(qu)(qu)序列(lie)进(jin)行比(bi)较(jiao),将鼢鼠(shu)(shu)(shu)(shu)的(de)控制区(qu)(qu)分(fen)(fen)为(wei)终(zhong)止序列(lie)区(qu)(qu)、中(zhong)(zhong)央(yang)保(bao)守区(qu)(qu)和保(bao)守序列(lie)区(qu)(qu)3个区(qu)(qu)域。同(tong)时识别了鼢鼠(shu)(shu)(shu)(shu)中(zhong)(zhong)一(yi)系列(lie)保(bao)守序列(lie),并给出了它们的(de)一(yi)般形(xing)式。选用普通田鼠(shu)(shu)(shu)(shu)Microtus rossiaemeridionalis、褐家鼠(shu)(shu)(shu)(shu)Rattus norvegicus、小家鼠(shu)(shu)(shu)(shu)Mus musculus、鼹鼠(shu)(shu)(shu)(shu)Nannospalax ehrenbergi为(wei)外类群(qun),采用NJ和UPGMA法构建分(fen)(fen)子系统(tong)(tong)发(fa)育(yu)树。结果显(xian)示(shi): 鼢鼠(shu)(shu)(shu)(shu)中(zhong)(zhong)控制区(qu)(qu)基因适于系统(tong)(tong)发(fa)育(yu)分(fen)(fen)析,根据分(fen)(fen)子系统(tong)(tong)学(xue)(xue)、形(xing)态学(xue)(xue)的(de)结果初步(bu)认为(wei)高原鼢鼠(shu)(shu)(shu)(shu)M.baileyi和甘肃鼢鼠(shu)(shu)(shu)(shu)M.cansus达到了种级(ji)地(di)位。
紫穗狼尾草和狗牙根茎叶水文生态效应比较
2009, 3(2): 107-113.
[摘要](2554) [PDF 2072KB](822)
摘要:
研(yan)究(jiu)了紫(zi)穗(sui)狼尾草Pennisetum alopecuroides地(di)上部的生(sheng)长(zhang)状况、水(shui)文(wen)效(xiao)应(ying)和生(sheng)态效(xiao)应(ying)。结果表明,紫(zi)穗(sui)狼尾草的成坪速度(du)、成坪时间(jian)、草层高度(du)和地(di)上生(sheng)物(wu)量(liang)均明显优(you)于狗牙根Cynodon dactylon;其茎叶最大截留(liu)率45.35%,最大截留(liu)量(liang)5.12 mm,均高于狗牙根;其枯落物(wu)有效(xiao)蓄(xu)水(shui)率304.88%,有效(xiao)蓄(xu)水(shui)量(liang)0.19 mm,均低(di)于狗牙根;其茎叶覆盖对降(jiang)低(di)地(di)表温度(du)和保持土壤水(shui)分更(geng)为(wei)明显、有效(xiao)。
刈割对青海草地早熟禾坪用性的影响初探
2009, 3(2): 114-119.
[摘要](2020) [PDF 1641KB](715)
摘要:
对(dui)青(qing)海草地(di)(di)(di)早(zao)熟禾Poa pratensis cv.QinHai进行(xing)多次刈(yi)割试(shi)验(yan),结果(guo)发现: 两样(yang)地(di)(di)(di)中(zhong)各处(chu)理(li)下的(de)根扎(zha)速(su)率差异并不(bu)显(xian)(xian)(xian)著(0.05),西宁(ning)样(yang)地(di)(di)(di)的(de)根扎(zha)速(su)率明显(xian)(xian)(xian)高于(yu)果(guo)洛样(yang)地(di)(di)(di)(FF0.05);就分蘖值(zhi)而言,各处(chu)理(li)间差异并不(bu)显(xian)(xian)(xian)著(0.05),果(guo)洛样(yang)地(di)(di)(di)与西宁(ning)样(yang)地(di)(di)(di)之间也无(wu)显(xian)(xian)(xian)著差异(FF0.05)。各因素对(dui)于(yu)分蘖值(zhi)的(de)影(ying)响(xiang)(xiang)不(bu)大,但(dan)对(dui)于(yu)分蘖速(su)率却有(you)着较为明显(xian)(xian)(xian)的(de)影(ying)响(xiang)(xiang),低茬高频(pin)(留茬5 cm、修剪频(pin)度7 d/次)的(de)管理(li)措(cuo)施有(you)助于(yu)草坪草更好的(de)分蘖,其分蘖速(su)率略高于(yu)高茬低频(pin)下。
保水剂对垂盆草建植和生理代谢的影响
2009, 3(2): 120-123.
[摘要](1612) [PDF 476KB](645)
摘要:
研究了基(ji)质(蛭石、泥(ni)炭和粉煤灰等体积(ji)(ji)混合(he))中(zhong)添加保水(shui)(shui)剂对(dui)垂(chui)盆草(cao)(cao)Sedum sarmentosum生(sheng)长(zhang)及生(sheng)理代谢的(de)(de)影响。结果表明: 适量(liang)(liang)保水(shui)(shui)剂能(neng)促进(jin)(jin)垂(chui)盆草(cao)(cao)新生(sheng)芽(ya)的(de)(de)萌发和伸长(zhang),提(ti)高(gao)光合(he)色素含(han)量(liang)(liang)、叶片相对(dui)含(han)水(shui)(shui)量(liang)(liang)、游离氨基(ji)酸含(han)量(liang)(liang)和根(gen)系活(huo)力(li),有利于干物质的(de)(de)积(ji)(ji)累(lei)。在干旱处理后,保水(shui)(shui)剂对(dui)促进(jin)(jin)植物干物质的(de)(de)积(ji)(ji)累(lei)、地上部(bu)的(de)(de)生(sheng)长(zhang)以(yi)及提(ti)高(gao)叶片相对(dui)含(han)水(shui)(shui)量(liang)(liang)、游离氨基(ji)酸含(han)量(liang)(liang)的(de)(de)作(zuo)用(yong)更(geng)明显,但过(guo)高(gao)的(de)(de)用(yong)量(liang)(liang)反而会降低根(gen)系活(huo)力(li)。根(gen)据(ju)综(zong)合(he)表现, 1 g/L是(shi)垂(chui)盆草(cao)(cao)屋(wu)顶草(cao)(cao)坪较适宜(yi)的(de)(de)用(yong)量(liang)(liang)。
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