由于三峡工程的开工建设,巫山县大量移民就地后靠,土地所承载的压力剧增,阻碍了巫山县社会经济的可持续发展.利用生态足迹原理和模型对巫山县2005～2010年土地生态承载力进行分析,并运用相关分析、主成分分析等方法将生态足迹指标与传统经济指标相结合,分析了巫山县社会经济的发展对生态足迹的驱动作用,为巫山县的生态建设及可持续发展提供依据及参考.结果表明:巫山县生态足迹呈现逐年增加的趋势,且近几年增加速度明显加快,而生态承载力则基本持平,人均生态赤字由2005年的1.3362 hm2增长至2010年的2.1942 hm2,说明巫山县对自然资源的消费远远超过了区域所能提供的资源供给,阻碍可持续发展.在此基础上本研究以巫山县2005～2010年的生态足迹时间序列作为模型因变量,并根据区域社会经济发展与生态足迹变化的作用机理选择了8个社会经济发展相关指标为自变量,建立多元线性回归模型.模型检验结果令人满意,并通过相关性分析、主成分分析等手段揭示了巫山县社会经济发展指标对人均生态足迹的强烈驱动作用.

Land resources are the carrier of all resources and environmental factors,which has played an extremely important role in the socio-economic operation.Wushan County is mainly mountainous,the land resources are very barren,the arable land which mostly is sloping land has a poor quality,and the soil erosion is much more serious than other areas.Due to the construction of the Three Gorges Project,a large number of immigrants need to build their new home in place.The pressure which is carried by land is surging.All of the above has hindered the sustainable socio-economic development in Wushan County.In recent years,scholars note that the rational utilization of land resources in Wushan County has a crucial importance on sustainable development and the coordinated development of the human-land relationship in Wushan County.Because of this,the scholars have conducted a preliminary study and have published a number of papers.The number of the research papers which is mainly about ecological f

元末明初,巫山冉氏和大夏明玉珍政权关系融洽,积极参与抗明战争。曾将明朝著名将领康茂才打死在巫山大溪。后来冉氏投降,明朝廷为笼络冉氏,将此事隐瞒。但从地方志、碑刻和传说来看,康茂才死于巫山大溪是有依据的。

At the turning of Yuan and Ming dynasties, the Rans in Wushan kept on good terms with the Daxia Ming Yuzhen Regime and took an active participation in the war to resist against Ming Dynasty. His force once killed the famous general Kang Maocai in Daxi Wushan. Later, the Rans surrendered to the government of Ming Dynasty. The Court concealed this thing in order to appease him. But the county annals, some inscriptions and legends support the fact that Kang Maocai died in Daxi Wushan.

为探索岩溶山区乡村聚落空间格局的特征，以位于重庆东北部岩溶广布的巫山县为研究对象，运用空间分布测度模型、空间规模测度模型和空间形态测度模型，定量分析了巫山乡村聚落的空间格局特征，并进一步划分了地域类型。分析结果表明，总体上，巫山县的乡村聚落有一定的空间集聚特征，但存在明显的区域差异；乡村聚落的规模普遍偏小，具有低值集聚的特征，空间上呈现县城西北、西南大规模农村聚落集中，东北、东南小规模零散分布的“西热东冷”的格局；在空间形态上，巫山县西部区域连接性好，但形状不规则，复杂程度高，东部区域连接性差，复杂程度不及西部区域。整体而言，巫山县的乡村聚落形状规则性差，缺乏规划与引导。通过构建乡村聚落空间测度指标体系，采用系统聚类的方法，将巫山县乡村聚落划分为6种类型：低密度散点型、低密度小团块型、低密度不规则团块状、中密度不规则条带型、高密度宽带型、高密度散点型。未来的县域乡村聚落重构需要根据不同类型的特点加以引导。

China has entered a new period of building well-off society in an all-around way,which includes karst mountain where is sparing no effort in developing the rural construction level.It is of very important significance to analyze the special spatial distribution characteristics of the rural settlement in karst mountain for optimizing the rural settlement spatial layout and promoting the construction of a new socialist countryside and the integration of urban and rural development.In order to explore the spatial characteristics of the rural settlements in karst mountain,in light of special metrics modles of distribution,dimension and shape,the paper conducts a quantitative analysis on the space differentiation of rural settlements in Wushan county,and further identifies the regional types.The results are as follows.As a whole,in spatial distribution the rural settlements in Wushan are of certain concentrating features but exist obvious regional difference.The rural settlements are of low

在重庆巫山烟区巫山县河梁基地单元笃坪乡通过对该烟区主栽品种云烟97进行不同种植密度的处理栽培,分别对不同部位的烤后烟叶进行物理指标及生化指标的测定,考察不同种植密度对云烟97质量的影响。结果表明:A2处理以1 100株/667m2的种植密度在试验环境下较合理,烟叶可用性更好。

The experiments were conducted in Duping Town of Wushan County where is the tobacco planting area in Chongqing City. Through planting the main local tobacco cultivar Yunyan97 with different planting densities and determining physical index and biochemical index of cured tobacco leaves from different parts, the influences of different planting densities on quality of Yunyan97 were researched. The results showed that A2 treatment with planting density of 16 500 plants/hm2 was relatively reasonable under experimental environment, and the usability of tobacco leaf was better.

对不同生境中巫山淫羊藿结实特性进行比较研究。结果表明：（1）三个种群在繁殖时期中不同花部特征的植株繁殖投资差异不大,如每株分枝数、每株花序数和每株开花数差异均不显著;（2）三个种群中每株结实数、每株结实率、每花序结实数在不同花部特征中差异显著,PLS和SAA要显著大于PESS;（3）三种花部特征在不同生境中单株分枝数和单株花序数均无显著差异。在不同花部特征中种群1开花数量相较少,因而在结实方面均值均要小于种群2和种群3;（4）不同花部特征的果实饱满种子数、败育数和败育率均具有显著差异,而种子数差异不大,但在种群间均无显著的差异。说明种子的多少更多地受到花部特征的影响。总之,巫山淫羊藿的结实特性受到生境和花部特征的双重影响,其中花型比生境对巫山淫羊藿结实特性的影响更为明显。

The survey of the fruit-setting characteristics of E.wushanense revealed in the three habitats were as fol-lows:(1)the resource and reproduction of floral characteristics had no difference among the three habitats,eg.No significant differences of branches per plant,inflorescences number per plant and flowers per plant weas observed a-mong the three habitats;(2)Fruit-setting number per plant,FruitGsetting rate per plant and fruit setting rate per in-florescence of PLS and SAA were remarkably higher than the PESS;(3)The branches per plant and inflorescences number per plant of three floral characteristics had no difference in three habitats.The flowers per plant and fruit set of Population 1 was less than the other populations;(4)The full seed per fruit,percentage of seeds abortion per fruit and number of seeds abortion per fruit were significant different in three floral characteristics,but among the popula-tion,which revealed the seeds per fruit had been affected more by floral charact