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The results show that:(1) the overall water quality in the Xiangjiang River had become worse during the 1990s and the main pollutants which caused aggravating pollution were total coliforms, total phosphorus, petroleum and total hydrargyrum ;(2) the main pollution sources were living pollution, which increased evidently in recent years, and industry pollution, of which heavy metal pollution is evident;(3) among the mainstream of the Xiangjiang River , river sections in Zhuzhou, Xiangtan and Changsha suffered from the most serious pollution;(4) it is forecasted that living pollution and agriculture pollution will become more serious in the future.

结果表明：湘江总体水质在20世纪90年代呈恶化趋势，致使污染加剧的主要因子是总大肠菌群、总磷、石油类和总汞；主要污染源为工业污染和生活废水污染，近年来生活废水污染日益突出，工业污染中重金属污染明显；在干流不同河段中，株洲、湘潭和长沙河段污染最为严重；估计未来湘江的生活污染和农业污染还会加剧。

Through the design of AGP-test equipments and methods which could simulate the impact of input of exogenous nutrients on eutrophication, the evolution of algae and aquatic species extinction process in Miyun Reservoir under different environmental and nutritional conditions are simulated. Then the ratio growth rate in the three simulation stages are simulated and analyzed combining the numerical analysis software MATLAB 7.0. At last, the conclusion that in the three designed stage, the total phosphorus threshold which leads to a water bloom in Miyun is respctively 0.053mg/L, 0.062mg/L, 0.064 mg/L is educed. Based on the regression relationship of total phosphorus,chlorophyll-a, total nitrogen, and the transparency,we compartmentalized the evaluation standard level of eutrophication in Miyun Reservoir.

通过设计模拟外源输入对富营养化作用的AGP试验装置和方法，模拟了不同环境条件、营养条件下密云水库优势藻种演变和富营养化过程，结合使用MATLAB 7.0数值分析软件，对3期模拟时段的比增长率进行拟合分析，得出3期设计阶段密云富营养化发生的总磷阈值为0.053mg/L、0.062 mg/L、0.064 mg/L，再根据总磷与叶绿素a、总氮、透明度之间的回归关系，划分了密云水库富营养化的评价标准级别。

This paper reviewed the research on dynamic and balance of soil nutrient pool under long-term fertilization conditions,mainly about some active aspects which included dynamic variations of total nitrogen,available N,total phosphorus,available P,total potassium,available K,and organic carbon in soil; dynamic variations of ammonium N,amino acid N,amino sugar N,unknown N,non hydrolyzable N and microbiomass N in soil nutrient pool; changes of Ca2-P,Ca8-P,Al-P,Fe-P,O-P,labile organic P,moderately labile organic P,moderately stable P,highly stable P and microbiomass P in soil; changes of loosely,stably and tightly combined humus,humic and fulvic acids in soil carbon pool; effects of long-term fertilization on organic-mineral complex status in soil; nutrients cycling and balance of agricultural soil nutrients pool.

扼要地概述了国内外近年来关于长期施肥条件下土壤养分库的动态与平衡方面的研究成果。主要介绍并讨论了土壤氮、磷、钾养分全量及有效量的动态变化，土壤有机碳含量的动态变化；铵态氮、氨基酸态氮、氨基糖态氮、酸解未知态氮、非水解残渣氮及微生物体氮在土壤氮库中的动态变化；Ca2 P、Ca8 P、Al P、Fe P、闭蓄态磷，活性有机磷、中度活性有机磷、中稳性有机磷、高稳性有机磷及微生物体磷在土壤磷库中的动态变化；土壤碳库中松结态腐殖质、稳结态腐殖质、紧结态腐殖质以及富里酸和胡敏酸的动态变化；长期施肥对土壤有机无机复合状况的影响；农田土壤养分库的养分循环与养分平衡。

The results were as follows the change of vitamin C content was a "trial apex"-shape curve, higher in young fruit,incrustation and maturation stages, lower in other periods; the total acid content was the highest in young fruit, after that, it decreased rapidly, maintained lower level, and reached lowest when the fruit matured; the total content of soluble sugar inosculated with the fruit development, it was high when the fruit development was quick, and low when the fruit development was slow; before 59 d after anthesis, the reducing sugar content was high in the total content of soluble sugar and after that ,the nonreducing sugar content was high; before 45 d after anthesis, free amino acid content was obviously correlated with protein content, and they inosculated with the fruit development;4559 d after anthesis, free amino acid content increased quickly, and protein content decreased gradually, this was also the most shaping period of the embryo and endosperm.

结果表明，Vc含量呈&三峰&型曲线，幼果时、硬核后和成熟时较高，其他时期较低；有机酸含量以幼果期最高，以后迅速下降并维持较低水平，果实成熟时含量最低；可溶性总糖含量与果实发育状况基本相吻合，果实发育速度快时含量较高，慢时较低；在谢花后59 d以前，可溶性糖以还原糖为主，之后以非还原糖为主；游离氨基酸和蛋白质含量，在谢花后45 d以前两者呈高度相关，且与果实生长速度相吻合，谢花后4559 d是胚和胚乳的主要形成期，此期游离氨基酸含量迅速增加，蛋白质含量持续下降。西北林学院学报21卷第5期张传来等金光杏梅果实发育期间主要营养成分动态变化研究

Total N increased significantly in the rhizosphere, hut total P and total K decreased. However, the available N, P and K in the rhizosphere behaved in an opposite way: with available N decreased but available P and available K increased in the rhizosphere except fur Phragmites communis Trin. Deficit of available N is the most significant, and accumulation of available P and available K were the least for Salsola nitraria Pall. among all seven halophytes.

在所有研究植物中，根际土壤中全N含量比土体的含量高，但全P和全K含量却比土体的含量低；根际土壤中有效态养分的变化则与全态相反，根际土壤中的有效N含量比土体中的都显著降低，除芦苇外，其他六种盐生植物根际土壤中有效P和有效K的含量都高于土体，但有效P的富集不及有效K富集的程度高。

A univariate ANOVA is executed to analyze the influencing factors of the production cost by dividing it into direct material, direct labor cost, indirect cost and total cost separately. It is found that the variables of farm scale and crop type show significant impacts in the direct labor cost and total production cost. The one-crop farming variable makes significant difference in the total production cost; whereas different planting ways differentiates the indirect cost. In addition, years of farming, farmer's age, and full-time status all make no significant difference in all aspects of production cost.

此外，将农场生产成本分为直接材料、直接人工、间接成本、总生产成本四面向进行多因子变异数分析，结果发现耕作面积、作物类型变项仅在有机农场的直接人工和总生产成本中有显著差异；有机农场是否为单一经营在总生产成本上有显著差异；不同栽培方式的有机农场仅在间接成本的高低上有显著差异；此外，而耕作年数变项因本研究有机农场耕作年数较高之样本特性影响，导致该变项对生产成本并无显著的差异；年龄、专兼业经营等变项在生产成本上高低并无显著差异。

Since the newly formed collective received awards are: 2000: third prize art display area, the first variety show to town, the town of Games Group Total third, Longjiang Town, an advanced school; in 2001: the guard of honor Parade Town The first, physical inspection and the town of Wei first prize, the town will be shipped the first group Total, Shunde District, a small team of advanced brigade department, the variety show area second prize, Shunde District Arts Contest "second-class Golden Phoenix Award", Shunde District, green schools, Shunde District, experimental work of outstanding schools, Shunde District Health advanced units, Longjiang Town, an advanced school; 2002: The show is the town of the first prize, first prize for the honor guard Parade town, towns, morning exercises, inspections and assessments in the first primary school students 1, the town will be shipped second group Total, literature and art show area first prize, dance, creative program "Water Village Bamboo Doll" won the primary and secondary schools, Shunde District, first prize for the variety show made the town more than 10 years of my primary and secondary schools to participate in District Arts Jiang's speech of the highest award, as well as advanced literature and art, Longjiang Town, schools, art schools, Longjiang Town, Shunde District, Wei body of advanced school, Shunde District, a school, Shunde District, an advanced school; in 2003 the town has awarded the hosting of the Games for the overall points first, dance, literary and artistic creation show the program "sweet cane greedy Doll" was the first town, the first prize.

新组建以来所获得的集体奖项有：2000年：文艺汇演区三等奖、文艺汇演镇第一名、镇运会团体总分第三名、龙江镇先进学校；2001年：仪仗队汇操镇第一名、体卫工作检查镇一等奖、镇运会团体总分第一名、顺德区少队先进大队部、文艺汇演区二等奖、顺德区文艺创作大赛&金凤二等奖&、顺德区绿色学校、顺德区实验工作优秀学校、顺德区卫生工作先进单位、龙江镇先进学校；2002年：文艺汇演镇一等奖、仪仗队汇操镇一等奖、镇小学生早操检查评比第一名、镇运会团体总分第二名、文艺汇演区一等奖，舞蹈创作节目《水乡竹娃》获顺德区中小学生文艺汇演一等奖，取得了我镇10多年来中小学参加区文艺江演的最高奖项，还有龙江镇文艺先进学校、龙江镇先进学校、顺德区体卫工作先进学校、顺德区一级学校、顺德区先进学校；2003年又喜获镇运会团体总分第一名，文艺汇演舞蹈创作节目《甜甜蔗馋娃娃》获镇第一名、一等奖。

Results showed that low contents of Cd has promotion effect on Oryza Sativa, but high contents of Cd has not obvious restrain on it. The total trend of distribution of Cd in Oryza Sativa is root＞stem＞shell＞rice. The relation between Cd contents in rice and total Cd in soil as well as availability Cd in soil has been investigated. The result showed that both the total Cd and the availability Cd had notably correlation with content of Cd to rice, and the critical point were CaCl2-Cd=0.71mg/kg, DTPA-Cd=1.34 mg/kg, EDTA-Cd=0.76 mg/kg, NH4OAc-Cd=0.77 mg/kg.

研究表明：低浓度的镉对水稻生长稍有促进作用，高浓度的镉对其生长并没有明显的抑制作用；镉在水稻植株中总的分布趋势为根＞茎＞稻壳＞糙米；用4种有效态提取剂（0.1 mol/L CaCl2、DTPA、0.05 mol/L EDTA和1 mol/L NH4OAc）浸提出的有效态镉的含量和土壤中镉总量与水稻糙米中镉含量均达到显著相关水平，并确定了它们的临界值分别为CaCl2-Cd=0.71 mg/kg， DTPA-Cd=1.34 mg/kg， EDTA-Cd=0.76 mg/kg， NH4OAc-Cd=0.77 mg/kg。

Haifeng County, Luhe County, hosted Lufeng and a Red Bay Development and the Overseas Chinese Economic Zone Management Area, are Under the jurisdiction of city, which is with a total population of 3.23 million, urban population of 210,000, living abroad overseas Chinese, Hong Kong Macao and Taiwan compatriots, a total of more than 130 million people; total land area of 5271 square kilometers, accounting for 2.93% total area of the province, of which 93.2 thousand hectares of cultivated land, garden 42.1 thousand hectares, woodland 234.8 thousand hectares, unused land 47.9 thousand hectares; a coastline of 455 kilometers, sea area of 23.8 thousand square kilometers, accounting for the province's land area 14% of the ocean, in which shallow seas and tidelands 69.6 thousand hectares.

下辖市城区、海丰县、陆河县，代管陆丰市，并设有红海湾开发区和华侨管理区两个市辖经济区，总人口323万，市区人口21万，旅居海外华侨、港澳台同胞共有130多万人；陆地总面积5271平方公里，占全省总面积2.93％，其中耕地面积9.32万公顷，园地4.21万公顷，林地23.48万公顷，未利用地4.79万公顷；海岸线长455公里，海洋面积2.38万平方公里，占全省海洋国土面积的14%，其中浅海、滩涂6.96万公顷。

Results: In this paper selected 17 cases have undergone surgical treatment, including total removal of the tumors were 13 cases, accounting for 76.47% of the total, near total removal were 2 patients, partial resection were 2 cases, after surgery, There were 15 patients with clinical symptoms improved, accounting for 88.24% of the total number , the mainly complications was cranial nerve injury, there are 3 cases.

结果：本文所选的17例病例，均经过手术治疗，其中肿瘤全部切除的有13例，占到总数的76.47%，接近全部切除的有2例，部分切除的为2例，在手术后，有15例患者的临床症状得到改善，占到总数的88.24%，并发症主要为颅神经损伤，有3例。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。