A newly discovered Gigantopithecus fauna from Sanhe Cave, Chongzuo, Guangxi, South China

Among the most important faunas in the Late Cenozoic, the Gigantopithecus faunas have received a good deal of attention. The Gigantopithecus fauna recently discovered in Sanhe Cave consists of more than 80 mammal species, including cf. Hominidae, Pongo sp., Hylobates sp., Sinomastodon yangzien-sis, Stegodon preorientalis, Cervavitus fenqii, Dicoryphochoerus ultimus and Sus xiaozhu. It is the southernmost Gigantopithecus fauna found so far in China. Its geological age is estimated to be Early Pleistocene bas...     

A preliminary report on the newly found Tianyuan Cave, a Late Pleistocene human fossil site near Zhoukoudian

The Tianyuan Cave is the only human fossil-bearing site containing rich mammalian fossils found in the last decades near Zhoukoudian. Up to now more than 34 specimens of the human body have been recovered, and the mammalian fossils can be put into 29 species. Cervids dominate the fauna, and carnivores are very rare. Based on the primary examination, the human fossils can be attributed to the species Homo sapiens. All the mammalian fossils, except one between tooth of Crocuta belong to the species that still exist today. But some of them are the first records in fossil form north of the Yellow River, such as Arctonyx and Capricornis. Based on the mammalian fauna study, it seems that the Tianyuan Cave can be correlated with the Upper Cave.Sixty-three percent of the species of the mammalian fauna from the Tianyuan Cave are also present in the Upper Cave.The characters of the deposits also share some similarities between the Tianyuan Cave and the Upper Cave; both of them are mainly composed of breccia without cement. The dating using the U-series method on deer tooth samples indicates that the geological age of the new site is around 25 thousand years B.P. This is the first discovery of human sites outside the core area of the Peking Man Site at Zhoukoudian,which throws new light onto this world famous site complex.     

Early Pleistocene hominid teeth recovered in Mohui cave in Bubing Basin, Guangxi,South China

Since the 1950s, researchers who examine the issue of human beginnings often turn to Africa where there is a picture of human origins and evolution based on African hominid fossils with ages that are constantly revised to be older and older. However, there are many other unsolved problems about early human origins and evolution that may be solved by looking outside Africa. Over seventy years ago, Asia was described as a dispersal center of the earliest human industry, and a key arena for huma…     

广西崇左市白头叶猴保护区土壤研究

在现代的南亚热带高温多雨的气候作用下,赤红壤继续处于高度淋溶状态而发育成盐基高度不饱和,酸性较强,有机质量较低,土壤肥力较差;而处于岩溶山地的坡麓和谷地中的红粘土,因受山上的富含钙镁的岩溶水淀积复钙和淋溶脱钙的反复作用发育形成红色石灰土或复钙红粘土.这在广西崇左市白头叶猴保护区区的濑湍片、板利片和岜盆片的峰林谷地中和河...     

广西湿地植物分布新纪录

首次报道广西湿地植物1个新纪录属和3个新记录种,它们分别是玄参科的泽番椒属Deinostema T.Yamazaki和该属的有腺泽番椒Deinostema adenocaula(Maximowicz)T.Yamazaki、莎草科的扁秆荆三棱Bolboschoenus planiculmis(F.Schmidt)T.V.Egorova和密穗莎草Cyperus eragrostis Lamarck。凭证标本存放于广西师范大学生命科学学院标本馆(GNU)。     

广西金线莲形态多样性及优良类型选择

为筛选出广西金线莲Anoectochilus roxburghii(Wall.)Lindl.优良品种资源,对广西金线莲植株性状特征及无性繁殖后代的遗传稳定性进行观测,并测定有效活性成分(多糖和总黄酮)含量。结果表明,广西金线莲植株形态存在明显差异,主要表现在株型大小、叶形、叶上网脉特征、抗病性、授粉结实等方面。株型大小可分为2个株系;叶片形状可分为2种类型;叶上网脉特征可分为3种类型。根据株型和叶片特征可将广西金线莲划分为10个园艺类型,其中类型GXAR 01具有植株高大,叶形优美,适应性强,多糖、总黄酮含量高等特点,同时具有多代的遗传稳定性,被选为优良类型。广西金线莲优良类型GXAR 01可作为金线莲新品种培育的优质育种材料,也可在产业化生产中直接推广应用。     

广西油茶产业发展现状与对策

广西油茶(Camellia oleifera)资源丰富,种植历史悠久。广西油茶产业虽然初具规模,但是还存在资源质量不高、产业链条不长、品牌建设滞后等突出问题和薄弱环节,需要进一步加大政策支持力度,推动油茶产业早日成为乡村振兴的支柱产业。     

广西红树林区有孔团水虱的卵子发生

摸清有孔团水虱的繁殖特性,对团水虱的防控和消杀,以及保护红树林生态系统具有重要意义。本研究采用组织切片技术,研究广西红树林区有孔团水虱的卵子发生过程,探讨其繁殖期时间。结果表明,有孔团水虱的卵子发生过程可分为4个时期,分别是卵原细胞、无卵黄卵母细胞、卵黄发生卵母细胞和成熟期卵母细胞。其中：无卵黄卵母细胞又可分为前期、中期和后期3个亚期;卵黄发生卵母细胞可分为卵黄开始沉积时相和卵黄充满时相2个亚期。受精后发育的胚胎存在于母体内。周年调查表明：有孔团水虱雌性体内全年存在着各时期的卵母细胞或胚胎;2-3月无成熟期卵母细胞或胚胎出现。结合全年各期卵母细胞分布以及胚胎和幼体情况判断,广西红树林区有孔团水虱的繁殖期为每年的4月至次年的1月。     

广西产中华芦荟指纹图谱研究

本文旨在建立广西产中华芦荟的HPLC指纹图谱。研究以广西产中华芦荟为实验对象,采用HPLC指纹图谱分析法对广西不同产地的中华芦荟进行指纹图谱分析。结果10批中华芦荟药材指纹图谱相似度较好,各批药材指纹图谱间的相似度平均值在0.9以上;HPLC指纹图谱标定8个共有峰。本法HPLC指纹图谱的建立,初步为广西产中华芦荟的质量标准制定提供参考。     

广西等翅目昆虫区系及地理分布

结合广西综合自然地理特点,从区系和区域二方面探讨了广西等翅目昆虫的分布,并与邻省白蚁区系进行了比较。表明：区系组成以东洋区的中缅亚区种为主;中缅亚区中亚热带分布种略占优势,热带分布种也占有相当比重。区域成分华南区较华中区丰富．反映出热带地区白蚁组成的多样性特点。广西区域成分与广东省最相似,而种类组成则与湖南关系密切。分布在广西南部的土垅大白蚁（Ｍａｃｒｏｔｅｒｍｅｓａｎｎａｎｄａｌｅｉ）是热带景观的标志。依种类分布现状,将广西拟为国内白蚁亚热带种类的主要分布中心,以及印一马种向我国东南沿海地区扩散的中间地带之一。     

基于树高和冠幅的广西桉树二元立木材积模型研建

激光雷达在获取树高和冠幅等森林资源信息方面具有无可比拟的优越性,构建基于树高和冠幅的二元立木材积模型,可为激光雷达技术在森林蓄积量估测应用中提供计量依据。通过测定广西桉树(Eucalyptus)典型分布区448株样木的树高、冠幅、胸径等因子,采用非线性回归估计方法建立树高冠幅二元材积模型、树高一元材积模型、胸径树高二元材积模型、胸径一元材积模型和冠幅一元材积模型,并对模型进行检验评价。建立的5个模型确定系数分别为0.969,0.875,0.994,0.945和0.588,总体误差分别为0.29%、-1.94%、-0.26%、1.88%和-2.82%,模型预估精度分别为97.75%、95.38%、99.14%、96.95%和91.72%;树高冠幅二元材积模型的模型总体检验、分树种检验、分段检验、分区检验和五折交叉检验,均符合林业数表编制的相关要求。树高冠幅二元材积模型各项指标显著优于树高一元材积模型和冠幅一元材积模型,与胸径树高二元材积模型接近,完全符合林业数表编制要求,可应用于基于机载激光雷达的森林资源调查和监测。     

广西猫儿山鹬虻属二新种(双翅目:鹬虻科)

记述采自广西猫儿山鹬虻属（Ｒｈａｇｉｏ）２新种,即无痣鹬虻（Ｒ．ａｓｔｉｃｔａＹａｎｇｅｔＹａｎｇ）和拟无痣鹬虻（Ｒ．ｐｓｅｕｄａｓｔｉｃｔａＹａｎｇｅｔＹａｎｇ）,并综述属的特征。模式标本存北京农业大学昆虫标本室。     

山口红树林土壤芽孢杆菌多样性及纤维素酶活性筛选研究

为探究广西山口红树林保护区内土壤中芽孢杆菌的多样性,挖掘具有稳定性好、耐高温的纤维素酶活性菌株,本研究利用可培养技术和基于16S rRNA基因序列的系统发育树分析研究红树林土壤中可培养芽孢杆菌的多样性,并以羧甲基纤维素钠为唯一碳源,结合刚果红纤维素培养法、滤纸条崩解试验、纤维素酶活力测定法,对分离出的芽孢杆菌开展纤维素降解活性研究。结果表明,从红树林土壤中共分离出171株芽孢杆菌,隶属于4科12属40种,其中芽孢杆菌属为优势菌属;从中筛选出9株具有显著纤维素酶活性的芽孢杆菌,其中4株具有显著的热稳定性。广西山口红树林自然保护区内土壤中蕴含着十分丰富的可培养芽孢杆菌种类,且部分菌株呈现出显著的纤维素酶活性,具有较大的挖掘潜力。