欧宝体育

欢迎访问 欧宝体育,今天是

2009年26卷2期

显示方式:          |     

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](1335) [PDF 990KB](1769)
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](1793) [PDF 826KB](698)
摘要:
利用内蒙古典(dian)型草(cao)原(yuan)区(qu)3个站点近15年(nian)的天然(ran)牧(mu)(mu)草(cao)地上(shang)生(sheng)(sheng)物量(liang)(liang)(liang)、土(tu)(tu)(tu)壤(rang)水(shui)(shui)分(fen)和(he)气(qi)象(xiang)观(guan)测资料,对(dui)降水(shui)(shui)量(liang)(liang)(liang)、土(tu)(tu)(tu)壤(rang)水(shui)(shui)分(fen)和(he)耗水(shui)(shui)量(liang)(liang)(liang)与(yu)(yu)(yu)不同时期(qi)牧(mu)(mu)草(cao)产(chan)(chan)量(liang)(liang)(liang)的关(guan)系进行(xing)了统计分(fen)析(xi),建立了相应的经验(yan)方程(cheng),结果表明: 各水(shui)(shui)分(fen)因(yin)子与(yu)(yu)(yu)产(chan)(chan)量(liang)(liang)(liang)的相关(guan)性依次为土(tu)(tu)(tu)壤(rang)水(shui)(shui)分(fen)耗水(shui)(shui)量(liang)(liang)(liang)降水(shui)(shui)量(liang)(liang)(liang);在时间(jian)尺(chi)度上(shang),水(shui)(shui)分(fen)对(dui)产(chan)(chan)量(liang)(liang)(liang)的影(ying)响(xiang)存在前期(qi)小(xiao)中后期(qi)大的趋势,表现为随生(sheng)(sheng)长进程(cheng)的推进,相关(guan)程(cheng)度逐渐增强(qiang),同时水(shui)(shui)分(fen)对(dui)产(chan)(chan)量(liang)(liang)(liang)的影(ying)响(xiang)存在累加效应;一(yi)般情况下,典(dian)型草(cao)原(yuan)牧(mu)(mu)草(cao)产(chan)(chan)量(liang)(liang)(liang)所需的水(shui)(shui)分(fen)基本由0~50 cm土(tu)(tu)(tu)层提供;土(tu)(tu)(tu)壤(rang)水(shui)(shui)分(fen)和(he)耗水(shui)(shui)量(liang)(liang)(liang)与(yu)(yu)(yu)产(chan)(chan)草(cao)量(liang)(liang)(liang)的关(guan)系用直线或指数方程(cheng)拟合效果较好,降水(shui)(shui)与(yu)(yu)(yu)产(chan)(chan)草(cao)量(liang)(liang)(liang)的关(guan)系多用二次曲(qu)线拟合。这些(xie)结论和(he)方程(cheng)对(dui)牧(mu)(mu)草(cao)产(chan)(chan)量(liang)(liang)(liang)监测和(he)旱情评价、分(fen)析(xi)有一(yi)定(ding)的参考价值。
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](1609) [PDF 2720KB](996)
摘要:
在利用天(tian)山(shan)山(shan)区(qu)10个有代表(biao)性(xing)的(de)(de)(de)(de)(de)气象(xiang)台(tai)站1961-2006年(nian)(nian)(nian)的(de)(de)(de)(de)(de)历史气候(hou)(hou)资料对年(nian)(nian)(nian)平均气温和年(nian)(nian)(nian)降(jiang)水(shui)量(liang)变(bian)(bian)化(hua)规律(lv)进行统(tong)(tong)计(ji)(ji)分(fen)析的(de)(de)(de)(de)(de)基础上,采(cai)用周广胜、张新时的(de)(de)(de)(de)(de)自(zi)(zi)然(ran)(ran)植(zhi)(zhi)(zhi)被(bei)(bei)净(jing)(jing)第(di)(di)一(yi)(yi)(yi)性(xing)生(sheng)(sheng)产(chan)力模型,计(ji)(ji)算了(le)近46年(nian)(nian)(nian)天(tian)山(shan)山(shan)区(qu)自(zi)(zi)然(ran)(ran)植(zhi)(zhi)(zhi)被(bei)(bei)净(jing)(jing)第(di)(di)一(yi)(yi)(yi)性(xing)生(sheng)(sheng)产(chan)力的(de)(de)(de)(de)(de)变(bian)(bian)化(hua)特征,并据此建立了(le)自(zi)(zi)然(ran)(ran)植(zhi)(zhi)(zhi)被(bei)(bei)净(jing)(jing)第(di)(di)一(yi)(yi)(yi)性(xing)生(sheng)(sheng)产(chan)力与年(nian)(nian)(nian)平均气温和年(nian)(nian)(nian)降(jiang)水(shui)量(liang)的(de)(de)(de)(de)(de)统(tong)(tong)计(ji)(ji)关系,在此基础上,估算了(le)未(wei)来(lai)(lai)气候(hou)(hou)变(bian)(bian)化(hua)对自(zi)(zi)然(ran)(ran)植(zhi)(zhi)(zhi)被(bei)(bei)净(jing)(jing)第(di)(di)一(yi)(yi)(yi)性(xing)生(sheng)(sheng)产(chan)力的(de)(de)(de)(de)(de)可能影响(xiang)(xiang)。结果表(biao)明,46年(nian)(nian)(nian)来(lai)(lai),年(nian)(nian)(nian)平均气温以0.029 ℃/a的(de)(de)(de)(de)(de)速率(lv)(lv)升高(gao),年(nian)(nian)(nian)降(jiang)水(shui)量(liang)以1.38 mm/a的(de)(de)(de)(de)(de)速率(lv)(lv)增多,受(shou)其影响(xiang)(xiang),自(zi)(zi)然(ran)(ran)植(zhi)(zhi)(zhi)被(bei)(bei)净(jing)(jing)第(di)(di)一(yi)(yi)(yi)性(xing)生(sheng)(sheng)产(chan)力平均以0.013 t/(hm2a)的(de)(de)(de)(de)(de)速率(lv)(lv)增长。20世(shi)纪70年(nian)(nian)(nian)代初(chu)是(shi)天(tian)山(shan)山(shan)区(qu)气候(hou)(hou)暖湿化(hua)变(bian)(bian)化(hua)和自(zi)(zi)然(ran)(ran)植(zhi)(zhi)(zhi)被(bei)(bei)净(jing)(jing)第(di)(di)一(yi)(yi)(yi)性(xing)生(sheng)(sheng)产(chan)力开始明显增长的(de)(de)(de)(de)(de)突变(bian)(bian)点。未(wei)来(lai)(lai)气候(hou)(hou)的(de)(de)(de)(de)(de)暖湿化(hua)变(bian)(bian)化(hua)对提高(gao)天(tian)山(shan)山(shan)区(qu)自(zi)(zi)然(ran)(ran)植(zhi)(zhi)(zhi)被(bei)(bei)净(jing)(jing)第(di)(di)一(yi)(yi)(yi)性(xing)生(sheng)(sheng)产(chan)力将产(chan)生(sheng)(sheng)积极(ji)影响(xiang)(xiang),平均而言,在其他(ta)条件不变(bian)(bian)的(de)(de)(de)(de)(de)前提下(xia),年(nian)(nian)(nian)平均气温每升高(gao)1 ℃或年(nian)(nian)(nian)降(jiang)水(shui)量(liang)每增多10%,自(zi)(zi)然(ran)(ran)植(zhi)(zhi)(zhi)被(bei)(bei)净(jing)(jing)第(di)(di)一(yi)(yi)(yi)性(xing)生(sheng)(sheng)产(chan)力将增加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](1576) [PDF 1657KB](938)
摘要:
目(mu)前我国(guo)森(sen)林(lin)覆(fu)盖率明(ming)显下降,植(zhi)(zhi)被(bei)(尤其(qi)是矿(kuang)(kuang)区(qu)(qu)(qu)植(zhi)(zhi)被(bei))受破坏(huai)严重(zhong),急需要对其(qi)进(jin)行矿(kuang)(kuang)区(qu)(qu)(qu)植(zhi)(zhi)被(bei)保护(hu)与生态(tai)恢(hui)复(fu)(fu)。为(wei)了有足(zu)够的(de)(de)经(jing)济能力更(geng)加有效合理(li)地恢(hui)复(fu)(fu)矿(kuang)(kuang)区(qu)(qu)(qu)植(zhi)(zhi)被(bei),研究通(tong)过为(wei)其(qi)治(zhi)(zhi)理(li)成本建立数学模(mo)型的(de)(de)方(fang)法,进(jin)行矿(kuang)(kuang)区(qu)(qu)(qu)植(zhi)(zhi)被(bei)恢(hui)复(fu)(fu)治(zhi)(zhi)理(li)成本核算。并(bing)以黑龙江(jiang)省鸡西矿(kuang)(kuang)业(ye)集团(tuan)林(lin)业(ye)分公司下属的(de)(de)一个植(zhi)(zhi)被(bei)恢(hui)复(fu)(fu)区(qu)(qu)(qu)滴道林(lin)场的(de)(de)矸石山治(zhi)(zhi)理(li)为(wei)例,对林(lin)草结合的(de)(de)矿(kuang)(kuang)区(qu)(qu)(qu)植(zhi)(zhi)被(bei)恢(hui)复(fu)(fu)方(fang)式(shi)(shi)及成本费用进(jin)行了充分的(de)(de)实(shi)证研究并(bing)应用数学模(mo)型,最后得(de)出(chu)了治(zhi)(zhi)理(li)成本因(yin)其(qi)治(zhi)(zhi)理(li)模(mo)式(shi)(shi)的(de)(de)不同(tong)(tong)而(er)不同(tong)(tong)且治(zhi)(zhi)理(li)成本巨大(da)(da),矿(kuang)(kuang)业(ye)集团(tuan)是否(fou)有这(zhei)么大(da)(da)的(de)(de)经(jing)济实(shi)力的(de)(de)确有待(dai)评(ping)估的(de)(de)结论(lun),并(bing)提(ti)出(chu)了加强技术攻关、加大(da)(da)投资力度(du)适(shi)时开(kai)展(zhan)矿(kuang)(kuang)区(qu)(qu)(qu)植(zhi)(zhi)被(bei)保护(hu)与生态(tai)恢(hui)复(fu)(fu)的(de)(de)全面试点的(de)(de)建议,为(wei)国(guo)家制定生态(tai)补偿标准(zhun)提(ti)供(gong)参考(kao)。
酒泉市退牧还草工程对植被恢复的影响
2009, 3(2): 27-32.
[摘要](1520) [PDF 2238KB](806)
摘要:
自2003年(nian)开(kai)始,分别在酒(jiu)泉市(shi)3个退牧(mu)(mu)还草(cao)(cao)项(xiang)目(mu)试点县的(de)(de)(de)半荒漠草(cao)(cao)原(yuan),对(dui)(dui)禁(jin)牧(mu)(mu)、休(xiu)牧(mu)(mu)、补(bu)播和(he)轮牧(mu)(mu)4项(xiang)基(ji)本措施在植(zhi)被恢复中(zhong)的(de)(de)(de)实际效果进行了连续5年(nian)的(de)(de)(de)定点观测。结(jie)果表明: 就植(zhi)物多样性(xing)、盖(gai)度(du)、高(gao)度(du)和(he)产(chan)草(cao)(cao)量(liang)的(de)(de)(de)综合效应(ying)而言,4项(xiang)基(ji)本措施对(dui)(dui)植(zhi)被恢复均存在显著(zhu)的(de)(de)(de)促进作用,其(qi)中(zhong),禁(jin)牧(mu)(mu)和(he)补(bu)播的(de)(de)(de)效果均显著(zhu)优于(yu)休(xiu)牧(mu)(mu)和(he)轮牧(mu)(mu);对(dui)(dui)于(yu)退化较(jiao)为严重(zhong)且以生(sheng)态(tai)恢复为基(ji)本宗旨的(de)(de)(de)草(cao)(cao)原(yuan)建设而言,最佳选择方(fang)案(an)(an)为禁(jin)牧(mu)(mu)4~5年(nian);若以兼顾生(sheng)态(tai)恢复与(yu)牧(mu)(mu)业生(sheng)产(chan)双(shuang)重(zhong)效益为目(mu)标,则在禁(jin)牧(mu)(mu)的(de)(de)(de)同时(shi)辅(fu)之以补(bu)播的(de)(de)(de)方(fang)案(an)(an)更为可取;当建设目(mu)的(de)(de)(de)更偏重(zhong)于(yu)牧(mu)(mu)业生(sheng)产(chan),但(dan)同时(shi)要求对(dui)(dui)草(cao)(cao)地植(zhi)被不能造(zao)成严重(zhong)负面影响时(shi),最佳的(de)(de)(de)方(fang)案(an)(an)应(ying)为轮牧(mu)(mu),但(dan)应(ying)尽(jin)量(liang)避免或(huo)减少春(chun)秋季放牧(mu)(mu)。
云南岩溶区的石漠化与综合治理
2009, 3(2): 33-38.
[摘要](1663) [PDF 891KB](1016)
摘要:
对云(yun)(yun)南(nan)岩(yan)溶石(shi)(shi)(shi)(shi)漠(mo)(mo)化(hua)(hua)分(fen)布现状、成因和(he)危害进(jin)行(xing)分(fen)析,指出石(shi)(shi)(shi)(shi)漠(mo)(mo)化(hua)(hua)土地在云(yun)(yun)南(nan)省(sheng)各地州市均有分(fen)布,不同地区石(shi)(shi)(shi)(shi)漠(mo)(mo)化(hua)(hua)分(fen)布规(gui)模(mo)(mo)和(he)危害程(cheng)度不同;石(shi)(shi)(shi)(shi)漠(mo)(mo)化(hua)(hua)具(ju)自(zi)北(bei)向南(nan)分(fen)布面积逐渐(jian)增多、石(shi)(shi)(shi)(shi)漠(mo)(mo)化(hua)(hua)程(cheng)度逐渐(jian)加(jia)重的特点,滇(dian)东较滇(dian)西(xi)(xi)严重;强烈的人类活动为石(shi)(shi)(shi)(shi)漠(mo)(mo)化(hua)(hua)的主(zhu)导驱(qu)动力(li);石(shi)(shi)(shi)(shi)漠(mo)(mo)化(hua)(hua)加(jia)速了生态环(huan)境(jing)恶化(hua)(hua),主(zhu)要表现为水土流失(shi)、河道淤积和(he)自(zi)然灾(zai)害频繁,导致土地资源丧失(shi)和(he)非地带性(xing)干旱等。在综合西(xi)(xi)南(nan)岩(yan)溶石(shi)(shi)(shi)(shi)漠(mo)(mo)区治理(li)经(jing)验的基础上,总结(jie)出封山(shan)育林植被恢复、草地畜牧业、生态移民(min)模(mo)(mo)式(shi),以及坡改梯、立体生态农(nong)业和(he)养殖(zhi)-沼气-种植三(san)位一体的生态农(nong)业模(mo)(mo)式(shi)适(shi)于云(yun)(yun)南(nan)岩(yan)溶不同石(shi)(shi)(shi)(shi)漠(mo)(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](2049) [PDF 911KB](912)
摘要:
土(tu)壤(rang)种(zhong)(zhong)子(zi)(zi)库(ku)是(shi)(shi)指存在(zai)于(yu)(yu)(yu)土(tu)壤(rang)上(shang)层凋落物和土(tu)壤(rang)中全部(bu)存活种(zhong)(zhong)子(zi)(zi)的(de)(de)(de)总(zong)和。土(tu)壤(rang)种(zhong)(zhong)子(zi)(zi)库(ku)理(li)(li)论(lun)作为(wei)群(qun)落生(sheng)(sheng)态学和恢(hui)复生(sheng)(sheng)态学的(de)(de)(de)基础理(li)(li)论(lun),是(shi)(shi)退化生(sheng)(sheng)态系统(tong)重(zhong)建的(de)(de)(de)重(zhong)要(yao)(yao)组成部(bu)分,已成为(wei)植(zhi)(zhi)物生(sheng)(sheng)态学研(yan)(yan)(yan)(yan)究(jiu)(jiu)的(de)(de)(de)热点问题。研(yan)(yan)(yan)(yan)究(jiu)(jiu)土(tu)壤(rang)种(zhong)(zhong)子(zi)(zi)库(ku)是(shi)(shi)对(dui)生(sheng)(sheng)物多样性研(yan)(yan)(yan)(yan)究(jiu)(jiu)的(de)(de)(de)一(yi)个重(zhong)要(yao)(yao)补充,有助于(yu)(yu)(yu)对(dui)植(zhi)(zhi)被更新和植(zhi)(zhi)被演(yan)替(ti)动态的(de)(de)(de)了解(jie),对(dui)于(yu)(yu)(yu)植(zhi)(zhi)被重(zhong)建与恢(hui)复具有重(zhong)要(yao)(yao)意(yi)义,更有利于(yu)(yu)(yu)指导(dao)(dao)生(sheng)(sheng)产实践(jian)。草地(di)(di)土(tu)壤(rang)种(zhong)(zhong)子(zi)(zi)库(ku)作为(wei)潜在(zai)的(de)(de)(de)植(zhi)(zhi)物群(qun)落, 是(shi)(shi)种(zhong)(zhong)群(qun)的(de)(de)(de)定居(ju)、生(sheng)(sheng)存、繁衍和扩(kuo)散的(de)(de)(de)基础, 是(shi)(shi)草地(di)(di)未来地(di)(di)上(shang)植(zhi)(zhi)被发生(sheng)(sheng)的(de)(de)(de)源(yuan)泉。从草地(di)(di)尤其(qi)是(shi)(shi)高寒草地(di)(di)土(tu)壤(rang)种(zhong)(zhong)子(zi)(zi)库(ku)的(de)(de)(de)研(yan)(yan)(yan)(yan)究(jiu)(jiu)方法、研(yan)(yan)(yan)(yan)究(jiu)(jiu)内容、意(yi)义及存在(zai)的(de)(de)(de)问题等方面进行系统(tong)的(de)(de)(de)总(zong)结(jie)并展(zhan)望(wang)了未来的(de)(de)(de)研(yan)(yan)(yan)(yan)究(jiu)(jiu)趋势(shi),以(yi)期为(wei)将(jiang)来高寒草地(di)(di)土(tu)壤(rang)种(zhong)(zhong)子(zi)(zi)库(ku)的(de)(de)(de)研(yan)(yan)(yan)(yan)究(jiu)(jiu)提供一(yi)些理(li)(li)论(lun)基础,并为(wei)高寒草地(di)(di)的(de)(de)(de)植(zhi)(zhi)被重(zhong)建和恢(hui)复提供理(li)(li)论(lun)指导(dao)(dao)。
野生大豆碱胁迫反应的研究
2009, 3(2): 47-52.
[摘要](2552) [PDF 994KB](620)
摘要:
从(cong)吉(ji)林省白城市盐(yan)碱地采集了野生(sheng)大豆(dou)Glycine soja 345份,用不同盐(yan)碱化程(cheng)度的(de)(de)盐(yan)碱土从(cong)播(bo)种开始胁(xie)迫(po)(po),随着盐(yan)碱胁(xie)迫(po)(po)程(cheng)度增(zeng)加,发芽率(lv)和株(zhu)高逐渐降低,pH值为(wei)9.02可(ke)抑制50%野生(sheng)大豆(dou)的(de)(de)萌(meng)发和生(sheng)长。用浓度为(wei)0、50、75、150、300、500 mmol/L的(de)(de)NaHCO3胁(xie)迫(po)(po)3周龄幼(you)苗,浓度为(wei)0、50 mmol/L时幼(you)苗可(ke)以正常存(cun)活,浓度为(wei)75、150、300、500 mmol/L时幼(you)苗分别于19、6.5、3、0.5 h左右(you)开始萎蔫(nian)。筛选(xuan)能(neng)够在pH值9.0的(de)(de)盐(yan)碱土中(zhong)发芽、生(sheng)长、开花、结实(shi)(shi)的(de)(de)野生(sheng)大豆(dou)材(cai)料,选(xuan)择其中(zhong)发芽率(lv)和结实(shi)(shi)率(lv)均(jun)较高的(de)(de)9份材(cai)料,测定了叶绿(lv)素(su)含量、相对电导率(lv)和丙(bing)二醛含量,编号为(wei)G07048、G07092和G07256的(de)(de)3份材(cai)料在胁(xie)迫(po)(po)前后(hou)3个指标差异(yi)不显著,具(ju)有较强的(de)(de)耐盐(yan)碱能(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](1641) [PDF 1988KB](719)
摘要:
摘要: 利用光学(xue)显(xian)微(wei)镜(jing)对(dui)沈(shen)阳地区7种(zhong)(zhong)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)属(shu)Potentilla植物的(de)(de)(de)叶(ye)(ye)(ye)(ye)(ye)表(biao)(biao)(biao)(biao)(biao)皮(pi)(pi)(pi)(pi)(pi)(pi)微(wei)形(xing)(xing)态(tai)进行研究,结果表(biao)(biao)(biao)(biao)(biao)明(ming): 7种(zhong)(zhong)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)上(shang)(shang)(shang)、下(xia)(xia)叶(ye)(ye)(ye)(ye)(ye)表(biao)(biao)(biao)(biao)(biao)皮(pi)(pi)(pi)(pi)(pi)(pi)细(xi)胞(bao)(bao)垂周壁上(shang)(shang)(shang)均有(you)不同程度的(de)(de)(de)波浪(lang)状(zhuang)增厚,使表(biao)(biao)(biao)(biao)(biao)皮(pi)(pi)(pi)(pi)(pi)(pi)细(xi)胞(bao)(bao)间(jian)的(de)(de)(de)结合更加紧(jin)密(mi),增强(qiang)了叶(ye)(ye)(ye)(ye)(ye)的(de)(de)(de)抗逆性和(he)(he)机械支撑(cheng)能力(li),根据表(biao)(biao)(biao)(biao)(biao)皮(pi)(pi)(pi)(pi)(pi)(pi)细(xi)胞(bao)(bao)形(xing)(xing)状(zhuang)可将叶(ye)(ye)(ye)(ye)(ye)表(biao)(biao)(biao)(biao)(biao)皮(pi)(pi)(pi)(pi)(pi)(pi)微(wei)形(xing)(xing)态(tai)分(fen)为(wei)3种(zhong)(zhong)类型(xing): 1)多边(bian)形(xing)(xing): 蔓(man)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)P. flagella、莓叶(ye)(ye)(ye)(ye)(ye)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)P. fragarioides、翻白(bai)(bai)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)P.discolor、伏(fu)(fu)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)P.paradoxa和(he)(he)三(san)叶(ye)(ye)(ye)(ye)(ye)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)P.freyniana的(de)(de)(de)上(shang)(shang)(shang)表(biao)(biao)(biao)(biao)(biao)皮(pi)(pi)(pi)(pi)(pi)(pi);2)近(jin)多边(bian)形(xing)(xing): 羽(yu)叶(ye)(ye)(ye)(ye)(ye)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)P.multicaulis、蛇(she)(she)含(han)(han)(han)(han)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)P.kalinin的(de)(de)(de)上(shang)(shang)(shang)表(biao)(biao)(biao)(biao)(biao)皮(pi)(pi)(pi)(pi)(pi)(pi)和(he)(he)莓叶(ye)(ye)(ye)(ye)(ye)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、伏(fu)(fu)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)的(de)(de)(de)下(xia)(xia)表(biao)(biao)(biao)(biao)(biao)皮(pi)(pi)(pi)(pi)(pi)(pi);3)不规则(ze)形(xing)(xing): 蔓(man)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、翻白(bai)(bai)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、羽(yu)叶(ye)(ye)(ye)(ye)(ye)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、蛇(she)(she)含(han)(han)(han)(han)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)和(he)(he)三(san)叶(ye)(ye)(ye)(ye)(ye)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)的(de)(de)(de)下(xia)(xia)表(biao)(biao)(biao)(biao)(biao)皮(pi)(pi)(pi)(pi)(pi)(pi)。7种(zhong)(zhong)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)气孔(kong)(kong)器分(fen)布特点: 莓叶(ye)(ye)(ye)(ye)(ye)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、翻白(bai)(bai)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、伏(fu)(fu)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)和(he)(he)三(san)叶(ye)(ye)(ye)(ye)(ye)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)的(de)(de)(de)上(shang)(shang)(shang)表(biao)(biao)(biao)(biao)(biao)皮(pi)(pi)(pi)(pi)(pi)(pi)无气孔(kong)(kong)器分(fen)布;蔓(man)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)上(shang)(shang)(shang)表(biao)(biao)(biao)(biao)(biao)皮(pi)(pi)(pi)(pi)(pi)(pi)的(de)(de)(de)气孔(kong)(kong)器零星分(fen)布;羽(yu)叶(ye)(ye)(ye)(ye)(ye)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、蛇(she)(she)含(han)(han)(han)(han)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)的(de)(de)(de)上(shang)(shang)(shang)表(biao)(biao)(biao)(biao)(biao)皮(pi)(pi)(pi)(pi)(pi)(pi)和(he)(he)蔓(man)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、羽(yu)叶(ye)(ye)(ye)(ye)(ye)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、蛇(she)(she)含(han)(han)(han)(han)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、莓叶(ye)(ye)(ye)(ye)(ye)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、翻白(bai)(bai)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、伏(fu)(fu)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)和(he)(he)三(san)叶(ye)(ye)(ye)(ye)(ye)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)的(de)(de)(de)下(xia)(xia)表(biao)(biao)(biao)(biao)(biao)皮(pi)(pi)(pi)(pi)(pi)(pi)均有(you)气孔(kong)(kong)器分(fen)布。在(zai)7种(zhong)(zhong)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)的(de)(de)(de)下(xia)(xia)表(biao)(biao)(biao)(biao)(biao)皮(pi)(pi)(pi)(pi)(pi)(pi)中莓叶(ye)(ye)(ye)(ye)(ye)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、羽(yu)叶(ye)(ye)(ye)(ye)(ye)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)和(he)(he)翻白(bai)(bai)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)的(de)(de)(de)气孔(kong)(kong)指(zhi)(zhi)数(shu)相对(dui)较(jiao)(jiao)大,蔓(man)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、伏(fu)(fu)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、蛇(she)(she)含(han)(han)(han)(han)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)和(he)(he)三(san)叶(ye)(ye)(ye)(ye)(ye)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)气孔(kong)(kong)指(zhi)(zhi)数(shu)相对(dui)较(jiao)(jiao)小,蔓(man)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、羽(yu)叶(ye)(ye)(ye)(ye)(ye)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)和(he)(he)蛇(she)(she)含(han)(han)(han)(han)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)的(de)(de)(de)上(shang)(shang)(shang)表(biao)(biao)(biao)(biao)(biao)皮(pi)(pi)(pi)(pi)(pi)(pi)气孔(kong)(kong)指(zhi)(zhi)数(shu)明(ming)显(xian)小于其下(xia)(xia)表(biao)(biao)(biao)(biao)(biao)皮(pi)(pi)(pi)(pi)(pi)(pi)。通过对(dui)7种(zhong)(zhong)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)气孔(kong)(kong)指(zhi)(zhi)数(shu)的(de)(de)(de)比(bi)较(jiao)(jiao)研究表(biao)(biao)(biao)(biao)(biao)明(ming),蔓(man)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、伏(fu)(fu)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)、蛇(she)(she)含(han)(han)(han)(han)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)和(he)(he)三(san)叶(ye)(ye)(ye)(ye)(ye)委(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)陵(ling)(ling)(ling)(ling)(ling)菜(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)具有(you)很强(qiang)的(de)(de)(de)抗旱(han)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](2122) [PDF 483KB](880)
摘要:
采用盆栽试(shi)验,在高温胁迫条(tiao)件下,通过(guo)测定(ding)4种(zhong)地(di)(di)被(bei)(bei)植物的(de)(de)细胞质(zhi)外渗率、丙二(er)醛含(han)(han)量、超氧(yang)化物歧化酶(mei)活性(xing)、过(guo)氧(yang)化物酶(mei)活性(xing)和脯氨酸、可(ke)溶性(xing)糖、可(ke)溶性(xing)蛋(dan)白质(zhi)及叶绿素(su)的(de)(de)含(han)(han)量等(deng)生理指标,利用隶属(shu)(shu)函(han)数(shu)法对4种(zhong)地(di)(di)被(bei)(bei)植物进行了耐热(re)性(xing)综合评价。通过(guo)综合隶属(shu)(shu)函(han)数(shu)值评定(ding)的(de)(de)耐热(re)性(xing)强(qiang)弱顺(shun)序(xu)为:广西(xi)过(guo)路黄Lyaimachia alfredii花叶过(guo)路黄L.christinae var huaye聚花过(guo)路黄L.congestiflora金叶过(guo)路黄L.nummulariaAurea,这一(yi)结果与4种(zhong)植物的(de)(de)实际表现相(xiang)一(yi)致。结果表明,模(mo)糊隶属(shu)(shu)函(han)数(shu)法可(ke)以避免单(dan)一(yi)指标的(de)(de)片面性(xing),能较全面地(di)(di)评价地(di)(di)被(bei)(bei)植物的(de)(de)耐热(re)性(xing)。
不同品种白三叶蛋白质含量比较
2009, 3(2): 61-65.
[摘要](1726) [PDF 2209KB](880)
摘要:
通过对10个不同(tong)(tong)(tong)白(bai)(bai)三(san)叶(ye)Trifolium repens品种在(zai)不同(tong)(tong)(tong)生(sheng)育期(qi)内叶(ye)片(pian)和全株(zhu)蛋白(bai)(bai)质(zhi)含量(liang)的测(ce)定分析,结果表明: 不同(tong)(tong)(tong)品种或同(tong)(tong)(tong)一品种不同(tong)(tong)(tong)生(sheng)育期(qi)的白(bai)(bai)三(san)叶(ye)蛋白(bai)(bai)质(zhi)含量(liang)差异极显著(P0.01),蛋白(bai)(bai)质(zhi)含量(liang)在(zai)生(sheng)育期(qi)内呈单峰曲(qu)线变化,并以初花期(qi)为(wei)蛋白(bai)(bai)质(zhi)含量(liang)降低的转折点(dian);北京地区适宜种植(zhi)的白(bai)(bai)三(san)叶(ye)品种为(wei)海法、汉口(kou)和吉林临江,其最佳利用(yong)时期(qi)为(wei)初花期(qi)。
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](2192) [PDF 566KB](860)
摘要:
以苜(mu)蓿(xu)(xu)Medicago stativa和(he)羊(yang)草(cao)Leymus chinensis为研(yan)究(jiu)对(dui)(dui)象(xiang),通过对(dui)(dui)其(qi)发(fa)(fa)酵(jiao)品质(zhi)和(he)化(hua)学成(cheng)(cheng)分的(de)(de)研(yan)究(jiu),探(tan)讨Lalsil Dry(LD)、H/MF INOCULANT(H/MF)和(he)青(qing)(qing)宝(bao)II号(FS)3种(zhong)乳酸(suan)(suan)菌制(zhi)剂对(dui)(dui)羊(yang)草(cao)和(he)苜(mu)蓿(xu)(xu)青(qing)(qing)贮(zhu)(zhu)(zhu)的(de)(de)影响。结(jie)果表明: 羊(yang)草(cao)直(zhi)接(jie)青(qing)(qing)贮(zhu)(zhu)(zhu)较(jiao)易成(cheng)(cheng)功,添(tian)加(jia)LD、FS和(he)质(zhi)量(liang)分数0.01%的(de)(de)H/MF可以显(xian)著(zhu)提(ti)高青(qing)(qing)贮(zhu)(zhu)(zhu)料乳酸(suan)(suan)生成(cheng)(cheng)量(liang)(P0.05),显(xian)著(zhu)降低丁酸(suan)(suan)生成(cheng)(cheng)量(liang)(P0.05),获得(de)优(you)质(zhi)的(de)(de)青(qing)(qing)贮(zhu)(zhu)(zhu)饲(si)料;苜(mu)蓿(xu)(xu)直(zhi)接(jie)青(qing)(qing)贮(zhu)(zhu)(zhu)pH值(zhi)和(he)丁酸(suan)(suan)含(han)量(liang)较(jiao)高,不能调制(zhi)优(you)质(zhi)青(qing)(qing)贮(zhu)(zhu)(zhu)饲(si)料,在(zai)试(shi)验中添(tian)加(jia)3种(zhong)乳酸(suan)(suan)菌制(zhi)剂亦未获得(de)优(you)质(zhi)的(de)(de)青(qing)(qing)贮(zhu)(zhu)(zhu)料,但LD处理组和(he)0.002 5% FS处理对(dui)(dui)青(qing)(qing)贮(zhu)(zhu)(zhu)料的(de)(de)发(fa)(fa)酵(jiao)品质(zhi)较(jiao)对(dui)(dui)照有一定的(de)(de)改善(shan)。另外,3种(zhong)乳酸(suan)(suan)菌制(zhi)剂处理青(qing)(qing)贮(zhu)(zhu)(zhu)料中的(de)(de)中性洗涤纤(xian)维(wei)和(he)酸(suan)(suan)性洗涤纤(xian)维(wei)含(han)量(liang)与对(dui)(dui)照无显(xian)著(zhu)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](1800) [PDF 434KB](747)
摘要:
生长第(di)1年不同刈(yi)(yi)割(ge)(ge)(ge)(ge)株(zhu)(zhu)(zhu)高(gao)的(de)王草(cao)Pennisetum purpureumP.typhoideum年产(chan)草(cao)量(liang)随刈(yi)(yi)割(ge)(ge)(ge)(ge)株(zhu)(zhu)(zhu)高(gao)增高(gao)呈增加(jia)(jia)趋势(shi),刈(yi)(yi)割(ge)(ge)(ge)(ge)株(zhu)(zhu)(zhu)高(gao)220 cm时鲜草(cao)、风干草(cao)产(chan)量(liang)最(zui)高(gao),产(chan)量(liang)受施肥(fei)影(ying)响很大。茎(jing)叶比与刈(yi)(yi)割(ge)(ge)(ge)(ge)株(zhu)(zhu)(zhu)高(gao)之间(jian)存(cun)在显(xian)著(zhu)的(de)相关(guan)性(xing),其(qi)受施肥(fei)影(ying)响较小。营养物质(zhi)中,粗蛋白(bai)、粗脂肪、粗灰分(fen)含量(liang)均随刈(yi)(yi)割(ge)(ge)(ge)(ge)株(zhu)(zhu)(zhu)高(gao)的(de)增加(jia)(jia)而(er)降低(di),粗蛋白(bai)含量(liang)和刈(yi)(yi)割(ge)(ge)(ge)(ge)株(zhu)(zhu)(zhu)高(gao)之间(jian)存(cun)在极显(xian)著(zhu)的(de)线性(xing)负相关(guan),钙含量(liang)和中性(xing)洗涤纤维(NDF)、酸性(xing)洗涤纤维(ADF)、酸性(xing)洗涤木质(zhi)素(su)(ADL)含量(liang)则随着(zhe)刈(yi)(yi)割(ge)(ge)(ge)(ge)株(zhu)(zhu)(zhu)高(gao)增加(jia)(jia)而(er)呈增加(jia)(jia)趋势(shi),与刈(yi)(yi)割(ge)(ge)(ge)(ge)株(zhu)(zhu)(zhu)高(gao)呈显(xian)著(zhu)正相关(guan)。从草(cao)产(chan)量(liang)、粗蛋白(bai)含量(liang)和产(chan)量(liang)角度来(lai)评价(jia),生长第(di)1年的(de)王草(cao)在株(zhu)(zhu)(zhu)高(gao)为(wei)100 cm施肥(fei)时刈(yi)(yi)割(ge)(ge)(ge)(ge)利用价(jia)值最(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](2193) [PDF 479KB](706)
摘要:
针(zhen)对当(dang)前春夏青绿饲草(cao)(cao)(cao)短缺(que)现(xian)状,试(shi)验以2001年(nian)引入的杂(za)交甜(tian)(tian)高粱新品种甜(tian)(tian)格雷兹Sorghum bicolour var.Sugargraze为试(shi)材(cai),进行刈(yi)割(ge)次数研究。结果表(biao)明: 随着刈(yi)割(ge)次数的增(zeng)加,鲜草(cao)(cao)(cao)、干草(cao)(cao)(cao)和粗(cu)蛋白(bai)产量(liang)降低,单位品质含(han)量(liang)增(zeng)加。其(qi)中1次刈(yi)割(ge)产鲜草(cao)(cao)(cao)、干草(cao)(cao)(cao)和粗(cu)蛋白(bai)质量(liang)最高,分别为: 110.78、29.75和1.25 t/hm2, 2次刈(yi)割(ge)次之,且糖锤度高,适口性好,利于(yu)饲喂(wei);3次刈(yi)割(ge)则较低,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](2120) [PDF 719KB](696)
摘要:
刈(yi)(yi)(yi)割(ge)是一种常见的(de)草(cao)(cao)(cao)(cao)地利(li)用和(he)管(guan)理(li)方(fang)(fang)式(shi),它(ta)可(ke)以(yi)通过两方(fang)(fang)面途(tu)径来(lai)影(ying)响(xiang)牧(mu)草(cao)(cao)(cao)(cao)产(chan)量及品质(zhi)(zhi)。首(shou)先(xian),刈(yi)(yi)(yi)割(ge)可(ke)以(yi)利(li)用植物(wu)(wu)的(de)补(bu)偿性生长(zhang)(zhang),促进牧(mu)草(cao)(cao)(cao)(cao)生长(zhang)(zhang)并提(ti)高牧(mu)草(cao)(cao)(cao)(cao)产(chan)量。其次(ci),刈(yi)(yi)(yi)割(ge)可(ke)以(yi)利(li)用植物(wu)(wu)均衡(heng)性生长(zhang)(zhang)特(te)性,改变牧(mu)草(cao)(cao)(cao)(cao)营养物(wu)(wu)质(zhi)(zhi)的(de)沉积和(he)分配(pei)方(fang)(fang)向,进而影(ying)响(xiang)牧(mu)草(cao)(cao)(cao)(cao)品质(zhi)(zhi)。常见的(de)刈(yi)(yi)(yi)割(ge)包括刈(yi)(yi)(yi)割(ge)频次(ci)、刈(yi)(yi)(yi)割(ge)时间和(he)刈(yi)(yi)(yi)割(ge)方(fang)(fang)式(shi)。全面综述3种刈(yi)(yi)(yi)割(ge)对牧(mu)草(cao)(cao)(cao)(cao)产(chan)量及品质(zhi)(zhi)影(ying)响(xiang)和(he)相应作用机理(li),为(wei)适当利(li)用刈(yi)(yi)(yi)割(ge)提(ti)高牧(mu)草(cao)(cao)(cao)(cao)产(chan)量及品质(zhi)(zhi)提(ti)供(gong)参(can)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](1866) [PDF 2067KB](696)
摘要:
研究免耕春小(xiao)麦(mai)Triticum aestivum套(tao)(tao)(tao)(tao)种牧草土(tu)(tu)(tu)(tu)壤(rang)养(yang)分的动态变化,分析了(le)小(xiao)麦(mai)套(tao)(tao)(tao)(tao)种白(bai)(bai)花(hua)草木樨Melilotus albus、野(ye)豌(wan)豆Vicia villosa、英吉沙豌(wan)豆Pisum sativum、玉(yu)米(mi)Zea mays、毛苕子V.villosa对(dui)土(tu)(tu)(tu)(tu)壤(rang)有(you)机(ji)质(zhi)、碱(jian)(jian)解(jie)氮(dan)和速(su)(su)(su)效(xiao)磷的影(ying)响。结(jie)果表(biao)明,套(tao)(tao)(tao)(tao)种牧草能(neng)提(ti)高(gao)土(tu)(tu)(tu)(tu)壤(rang)有(you)机(ji)质(zhi)、碱(jian)(jian)解(jie)氮(dan)和速(su)(su)(su)效(xiao)磷的含量(liang),特别是套(tao)(tao)(tao)(tao)种白(bai)(bai)花(hua)草木樨和套(tao)(tao)(tao)(tao)种野(ye)豌(wan)豆增(zeng)(zeng)加(jia)(jia)(jia)更为明显(xian),其中套(tao)(tao)(tao)(tao)种白(bai)(bai)花(hua)草木樨土(tu)(tu)(tu)(tu)壤(rang)碱(jian)(jian)解(jie)氮(dan)含量(liang)增(zeng)(zeng)加(jia)(jia)(jia)4.8 mg/kg,增(zeng)(zeng)幅(fu)19.4%,套(tao)(tao)(tao)(tao)种野(ye)豌(wan)豆土(tu)(tu)(tu)(tu)壤(rang)有(you)机(ji)质(zhi)增(zeng)(zeng)加(jia)(jia)(jia)0.39 g/kg,增(zeng)(zeng)幅(fu)1.6%,土(tu)(tu)(tu)(tu)壤(rang)速(su)(su)(su)效(xiao)磷含量(liang)增(zeng)(zeng)加(jia)(jia)(jia)了(le)8 mg/kg,增(zeng)(zeng)幅(fu)23.9%;土(tu)(tu)(tu)(tu)壤(rang)有(you)机(ji)质(zhi)、碱(jian)(jian)解(jie)氮(dan)和速(su)(su)(su)效(xiao)磷含量(liang)随土(tu)(tu)(tu)(tu)层(ceng)深(shen)度的增(zeng)(zeng)加(jia)(jia)(jia)而降(jiang)低。
甘肃草原鼠害区划研究
2009, 3(2): 91-99.
[摘要](1738) [PDF 874KB](731)
摘要:
甘肃(su)草(cao)原(yuan)(yuan)(yuan)啮(nie)齿(chi)类(lei)动物(wu)(wu)区(qu)系由68种(zhong)(zhong)组成,占全省啮(nie)齿(chi)动物(wu)(wu)总种(zhong)(zhong)数的(de)75.6%,其中(zhong),大(da)多数种(zhong)(zhong)的(de)种(zhong)(zhong)群密度不超过经济损(sun)害(hai)水(shui)平(ping)(ping),有(you)(you)一(yi)定(ding)的(de)生态学价值;有(you)(you)18~26种(zhong)(zhong)的(de)种(zhong)(zhong)群密度几乎经常维持在经济损(sun)害(hai)水(shui)平(ping)(ping)以上,是不同草(cao)原(yuan)(yuan)(yuan)类(lei)型(xing)的(de)优(you)势种(zhong)(zhong)害(hai)鼠(shu)(shu)。草(cao)原(yuan)(yuan)(yuan)鼠(shu)(shu)害(hai)区(qu)划(hua)工作应遵循历(li)史(shi)发展、生态适(shi)应和(he)(he)生产实践的(de)原(yuan)(yuan)(yuan)则。以草(cao)原(yuan)(yuan)(yuan)啮(nie)齿(chi)动物(wu)(wu)区(qu)系组成、地(di)带性生物(wu)(wu)气候和(he)(he)地(di)带性植被为指(zhi)标(biao)(biao)将(jiang)甘肃(su)草(cao)原(yuan)(yuan)(yuan)鼠(shu)(shu)害(hai)划(hua)分为5个区(qu);以具有(you)(you)一(yi)定(ding)优(you)势的(de)地(di)带性草(cao)原(yuan)(yuan)(yuan)类(lei)型(xing),具有(you)(you)代表性鼠(shu)(shu)类(lei)分布(bu)型(xing)和(he)(he)优(you)势种(zhong)(zhong)害(hai)鼠(shu)(shu)为指(zhi)标(biao)(biao),将(jiang)甘肃(su)草(cao)原(yuan)(yuan)(yuan)鼠(shu)(shu)害(hai)划(hua)分为13个草(cao)原(yuan)(yuan)(yuan)鼠(shu)(shu)害(hai)亚区(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](1475) [PDF 1907KB](641)
摘要:
采用PCR 产物直接测(ce)序(xu)法测(ce)定了(le)(le)3种(zhong)鼢(fen)鼠(shu)(shu)(shu)(shu)(shu)Mospalax spp.18个(ge)个(ge)体的(de)线粒体控制(zhi)区(qu)(Control region)核(he)苷(gan)酸全序(xu)列(lie),并进(jin)(jin)行了(le)(le)结构分(fen)析(xi)。通(tong)(tong)过与仓鼠(shu)(shu)(shu)(shu)(shu)亚科(ke)其他(ta)啮齿(chi)动物的(de)控制(zhi)区(qu)序(xu)列(lie)进(jin)(jin)行比较,将鼢(fen)鼠(shu)(shu)(shu)(shu)(shu)的(de)控制(zhi)区(qu)分(fen)为(wei)终止序(xu)列(lie)区(qu)、中央保(bao)守(shou)区(qu)和(he)(he)保(bao)守(shou)序(xu)列(lie)区(qu)3个(ge)区(qu)域(yu)。同时识别了(le)(le)鼢(fen)鼠(shu)(shu)(shu)(shu)(shu)中一系(xi)列(lie)保(bao)守(shou)序(xu)列(lie),并给出了(le)(le)它们的(de)一般形(xing)式。选(xuan)用普通(tong)(tong)田鼠(shu)(shu)(shu)(shu)(shu)Microtus rossiaemeridionalis、褐(he)家鼠(shu)(shu)(shu)(shu)(shu)Rattus norvegicus、小家鼠(shu)(shu)(shu)(shu)(shu)Mus musculus、鼹鼠(shu)(shu)(shu)(shu)(shu)Nannospalax ehrenbergi为(wei)外类群,采用NJ和(he)(he)UPGMA法构建分(fen)子(zi)系(xi)统(tong)发育树。结果显(xian)示: 鼢(fen)鼠(shu)(shu)(shu)(shu)(shu)中控制(zhi)区(qu)基因适(shi)于系(xi)统(tong)发育分(fen)析(xi),根据分(fen)子(zi)系(xi)统(tong)学(xue)、形(xing)态学(xue)的(de)结果初步认为(wei)高(gao)原(yuan)鼢(fen)鼠(shu)(shu)(shu)(shu)(shu)M.baileyi和(he)(he)甘肃(su)鼢(fen)鼠(shu)(shu)(shu)(shu)(shu)M.cansus达(da)到了(le)(le)种(zhong)级地位。
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](2547) [PDF 2072KB](821)
摘要:
研究了(le)紫穗(sui)狼(lang)尾草Pennisetum alopecuroides地(di)上(shang)部的生长状况、水(shui)(shui)文(wen)效(xiao)应(ying)和生态效(xiao)应(ying)。结果表明,紫穗(sui)狼(lang)尾草的成坪速度(du)、成坪时间(jian)、草层高度(du)和地(di)上(shang)生物量均明显(xian)优于(yu)(yu)狗牙根(gen)Cynodon dactylon;其(qi)茎(jing)叶(ye)最大截留(liu)率(lv)45.35%,最大截留(liu)量5.12 mm,均高于(yu)(yu)狗牙根(gen);其(qi)枯落物有效(xiao)蓄水(shui)(shui)率(lv)304.88%,有效(xiao)蓄水(shui)(shui)量0.19 mm,均低于(yu)(yu)狗牙根(gen);其(qi)茎(jing)叶(ye)覆盖(gai)对降(jiang)低地(di)表温度(du)和保持土壤(rang)水(shui)(shui)分更(geng)为明显(xian)、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](2002) [PDF 1641KB](714)
摘要:
对青海草地早(zao)熟禾Poa pratensis cv.QinHai进行多(duo)次(ci)刈割试验,结果发现(xian): 两样(yang)地中各(ge)处理下的根(gen)扎(zha)速(su)率差异并(bing)不显(xian)著(0.05),西(xi)宁样(yang)地的根(gen)扎(zha)速(su)率明(ming)显(xian)高(gao)于(yu)果洛样(yang)地(FF0.05);就分蘖(nie)(nie)值而(er)言,各(ge)处理间差异并(bing)不显(xian)著(0.05),果洛样(yang)地与西(xi)宁样(yang)地之(zhi)间也无显(xian)著差异(FF0.05)。各(ge)因素对于(yu)分蘖(nie)(nie)值的影响不大,但对于(yu)分蘖(nie)(nie)速(su)率却有(you)着较为(wei)明(ming)显(xian)的影响,低茬(cha)高(gao)频(留茬(cha)5 cm、修剪频度7 d/次(ci))的管(guan)理措(cuo)施有(you)助于(yu)草坪(ping)草更(geng)好(hao)的分蘖(nie)(nie),其(qi)分蘖(nie)(nie)速(su)率略高(gao)于(yu)高(gao)茬(cha)低频下。
保水剂对垂盆草建植和生理代谢的影响
2009, 3(2): 120-123.
[摘要](1600) [PDF 476KB](644)
摘要:
研究了基(ji)质(蛭石(shi)、泥炭和粉煤(mei)灰(hui)等体积混合)中添加保水剂(ji)对垂(chui)盆草(cao)Sedum sarmentosum生(sheng)长(zhang)及生(sheng)理(li)代谢的(de)(de)(de)影响。结(jie)果(guo)表明: 适量(liang)(liang)保水剂(ji)能促进垂(chui)盆草(cao)新生(sheng)芽(ya)的(de)(de)(de)萌发和伸(shen)长(zhang),提(ti)高光(guang)合色(se)素含(han)量(liang)(liang)、叶(ye)片相(xiang)对含(han)水量(liang)(liang)、游(you)离(li)氨(an)基(ji)酸含(han)量(liang)(liang)和根系活(huo)力,有利于干物质的(de)(de)(de)积累。在干旱处(chu)理(li)后,保水剂(ji)对促进植(zhi)物干物质的(de)(de)(de)积累、地上部(bu)的(de)(de)(de)生(sheng)长(zhang)以及提(ti)高叶(ye)片相(xiang)对含(han)水量(liang)(liang)、游(you)离(li)氨(an)基(ji)酸含(han)量(liang)(liang)的(de)(de)(de)作用更明显(xian),但(dan)过高的(de)(de)(de)用量(liang)(liang)反而会降低根系活(huo)力。根据综合表现(xian), 1 g/L是(shi)垂(chui)盆草(cao)屋顶草(cao)坪较(jiao)适宜的(de)(de)(de)用量(liang)(liang)。
欧宝体育