江苏柳叶菜科植物新记录

报道了发现于江苏省境内的隶属于柳叶菜科丁香蓼属的新记录植物3种,分别是黄花水龙Ludwigia peploides(Kunth)Kaven subsp.stipulaceae (Ohwi) Raven、毛草龙L.octovalvis (Jacq.) Raven、细果草龙L.leptocarpa(Nutt.)H.Hara,为江苏首次报道.     

江苏兰科植物分布新记录

报道了发现于江苏省境内的3个兰科(Orchidaceae)植物新记录种,分别是蕙兰(Cymbidium faberi Rolfe)、银兰(Cephalanthera erecta(Thunb.ex A.Murray) Coll)、大花无柱兰(Amitostigma pinguiculum (Rchb.f.et S.Moore) Schltr).     

江苏种子植物分布新记录科——桑寄生科

报道了发现于江苏省境内的寄生植物新记录种——锈毛钝果寄生Taxillus levinei(Merrill)H.S.Kiu,隶属于桑寄生科(Loranthaceae)钝果寄生属(Taxillus Van Tiegh.),科、属均为江苏省新记录。     

河南省玉兰属分布新记录

首次报道了河南省玉兰属新记录和新记录变种。它们是:罗田玉兰Yulaniapilocarpa(Z.Z.ZhaoetZ.W.Xie)D.L.Fuvar.alba(Treseder)D.L.FuetT.B.Zhao,var.transl.nov.     

上海外来种子植物分布新记录科——桑寄生科

报道了发现于上海市境内的寄生植物新记录种——锈毛钝果寄生(Taxillus levinei(Merr.)H.S.Kiu),隶属于桑寄生科(Loranthaceae)钝果寄生属(Taxillus Van Tiegh.).科、属均属于上海新记录.同时通过4年持续观察,该物种在上海市正常繁育后代并且繁衍呈野生状态,说明该物种...     

贵阳市种子植物属的新记录(Ⅱ)

本文发表贵阳市种子植物新记录21属,共27种(包括变种).凭证标本存于贵阳市林业种苗站. 十、 忍冬科Caprifoliaceae (一) 双盾木属Dipelta Maxim.     

贵阳市种子植物属的新记录(Ⅰ)

近5年来笔者在完成贵阳市种子植物种质资源的调查研究中,通过深入系统地采集,发现了一些贵阳市的新记录属,现陆续发表,相信对贵阳市环城林带乃至生态环境、生态文明建设都有积极作用.本文发表贵阳市新记录18属,共25种(包括变种).凭证标本存贵阳市林业种苗站.     

江苏省杂草稻遗传多样性及其起源分析

前期调查研究表明江苏是中国杂草稻危害最严重的省份之一,尤其以苏中地区最甚。因此,本文利用具有多态性的33个共显性SSR标记,分析苏中地区的11个杂草稻种群以及苏南苏北部分杂草稻样品,以揭示江苏省主要杂草稻的遗传多样性及其来源。结果表明苏中地区11个杂草稻群体总的遗传多样性(He)为0.1661,Shannon指数(I)为0.2872;多态位点百分率达到87.88%,等位基因数(Na)为2.1515,有效等位基因数(Ne)为1.2887。其中,泰州的遗传多样性最高而南通地区的最低。杂草稻在地区之间的遗传分化(1%)显著小于杂草稻种群之间的遗传分化(39%),更小于种群内的遗传分化(60%)。聚类分析和主成分分析结果表明苏中和苏南地区杂草稻以籼型为主,苏北地区存在少量粳型杂草稻;苏中地区的杂草稻与现有栽培稻品种和普通野生稻没有明显的亲缘关系,但与曾经栽培过的杂交水稻品种有关。因此,本研究相对支持江苏省杂草稻可能主要来自栽培稻的基因重组或回复突变等产生野生性状即返祖遗传的假说。苏北地区的杂草稻可能来源于穞稻与现今栽培稻杂交的后代。     

Impact of road transportation development on habitat quality in economically developed areas: A case study of Jiangsu Province,China

The excessive expansion of road transportation often has an impact on the quality of regional habitats. This paper attempts to assess the impact of road transportation on regional habitat quality in economically developed areas. A kernel density analysis was used to characterise the road transportation development in Jiangsu Province from 2000 to 2015. An Integrated Valuation of Ecosystem Services and Trade-offs (InVEST) habitat quality model was applied to assess changes in habitat quality. Furthermore, a fixed-effect regression model was utilised to examine the impact of road transportation development in Jiangsu Province on habitat quality. The analysis indicates that the average kernel density of road transportation in the province increased from 0.109 to 0.551 km/km² while the habitat quality decreased from 0.51 to 0.48. The development of road transportation in Jiangsu Province has had a serious negative impact on the quality of the habitat. For every 1-ha increase in land area for road use, the habitat quality index will decrease by 0.066; for every 1 km/km² increase in road transportation kernel density, the habitat quality index will decline by 0.121.     

浅议江苏省茶叶优势区域发展战略

江苏茶叶生产在全国占有重要地位。改革开放以来,江苏茶叶有了很大发展,但是目前也面临一些困境,如企业规模小,市场混乱,发展速度缓慢等。认为江苏具有生产茶叶的生态适宜性和强大的区域竞争力,适宜发展茶叶产业,对中国的茶叶生产具有重要意义。为了进一步促进江苏茶叶发展,提出了江苏茶叶优势区域发展战略     

Driving factors analysis of agricultural carbon emissions based on extended STIRPAT model of Jiangsu Province,China

STIRPAT (stochastic impact by regression on population, affluence, and technology) model is used to identify the influencing factors of agricultural carbon emissions in Jiangsu province. By referring to Kaya identity and combining with the actual situation of agricultural carbon emissions, four basic influencing factors were obtained: agricultural production efficiency, agricultural structure, agricultural economic development level, and agricultural population size. In addition, urbanization, mechanization, and natural disaster level were listed as influencing factors. The results demonstrated: (a) Urbanization was the first promoting factor of agricultural carbon emissions, indicating a 0.2510% increase in agricultural carbon emissions due to a 1% increase in urbanization. The other three positive factors were, respectively, agricultural mechanization, agricultural structure, and agricultural economic development and their influence indexes were 0.1481, 0.1163, and 0.0845, respectively. (b) Agricultural production efficiency was the most important factor to restrain agricultural carbon emissions. For every 1% increase in agricultural production efficiency, corresponding agricultural carbon emissions would be reduced by 0.3288%. Agricultural population size was also an important factor to reduce agricultural carbon emissions and its influence index was −0.045. Finally, we propose policy recommendations including implementation of orderly urbanization, dependence and development of low carbon technology, establishment of agricultural carbon compensation mechanism, etc.     

靖江市供种服务工作的现状与思考

1靖江市供种服务工作的现状1．1规范做好主要农作物品种的试验、示范工作新品种的引进、试验是品种推广的基础性工作,是优良品种应用于农业生产的重要环节。近年来,根据农业结构调整和市场需求,我们广泛引进各类农作物种子,进行布点试验,对表现好的品种同步进入品比试验,以加快新品种的示范推广步伐。这方面工作主要由种子管理站牵头,作栽站和供种企业协助。     

贵州兰科一新纪录属种(独花兰属:独花兰)

报道了兰科植物1贵州分布新纪录属和新纪录种,即独花兰属(Changnienia S.S.Chien)和独花兰(Changnieniaamoena S.S.Chien).研究所用标本保存在贵州科学院梵净山生态站和梵净山国家级自然保护区管理局.     

贵州草本植物新记录

通过标本鉴定和查阅相关资料,发现了贵州的6个新分布草本植物种,它们是疏毛魔芋(Amorphophallus sinensis Bel-val)、斑叶三匹箭(Arisaema inkiangense H.Livar.maculatum)、假芋(Colocasia fallax Schott)、离萼杓兰(Cypripedium plectrochilum Franch.)、美花隔距兰(Cleisostoma birmanicum(Schltr.)Garay)、富宁卷瓣兰(Bulbophyllum funingense Z.H.Tsi et S.C.Chen)。     

河北省外来逸生种子植物——欧洲千里光

报道了河北省张家口市外来引种半逸生植物——欧洲千里光(Senecio vulgaris L.).