执行中止制度的改革与完善          下载免费PDF全文

杨红朝 《安徽农业大学学报》2006,(3):75-77

在执行实务中,由于立法上的缺陷和执行中止的随意性太大,过多的适用中止执行导致了大量的执行积案,使执行法院背上了“包袱”;同时,现行的执行中止制度承载了执行当事人过多的误解和不满。本文从执行中止事由的纯化、执行观念的更新和债权凭证制度的构建等方面为建立新的执行中止制度提出了具体的设想。  相似文献   

5个草地型草地牧草的生长速率和养分动态研究     

袁福锦吴文荣  金显栋奎嘉祥 《四川草原》2005,(3):24-27

在牧草生长季节(5~9月)对小哨牧场放牧演替形成的5个草地型草地的牧草进行生长速率、牧草产量及养分的逐月观测,生长速率测定显示,白三叶+东非狼尾草和东非狼尾草+非洲狗尾草两个草地型草地均出现两个生长峰值,分别在6月和9月,其余3个草地型草地只有一个生长高峰。干物质产量和牧草养分测定结果表明,白三叶+东非狼尾草和白三叶+非洲狗尾草+画眉草两种草地型草地表现最好,可以在气候环境条件类似的地区推广种植利用;白三叶+画眉草和白三叶+非洲狗尾草两种草地型草地表现优良,可以在草地改良中,根据当地实际情况选择性地加以种植;东非狼尾草+非洲狗尾草型草地表现较差,不提倡种植。  相似文献   

Glucose and insulin responses to different dietary energy sources in Thoroughbred broodmares grazing cool season pasture     

W.B. Staniar  T.A. Cubitt  L.A. George  P.A. Harris  R.J. Geor 《Livestock Science》2007,111(1-2):164-171

The objectives of this study were to characterize the glycemic and insulinemic responses of Thoroughbred broodmares fed late spring pasture only or a mixture of pasture and a high starch or low starch feed and to test hypotheses about differences in the glycemic and insulinemic effects of these dietary regimes. A group of 15 mares were divided into three treatment groups; pasture and high starch feed (PHS), pasture and low starch feed (PLS), and pasture only (PO) and maintained in these groups for 4.5 months prior to this study. These groups were maintained on a single pasture that was temporarily divided into three sections. The study protocol was conducted over two days. On day 1 the mares were fed their respective treatments and on day 2 all mares were allowed access to pasture only. On both days plasma glucose and insulin were measured in samples taken over a 7.5 h period. Baseline measurements for glucose and insulin were not different between any of the treatment groups on either day (P > 0.05). The baseline insulin concentrations of these pasture-kept mares (26.7 ± 8.3 mIU/L) were high compared to those reported from stall-kept horses. Plasma glucose and insulin on day 1 were influenced by treatment group, sample time, and an interaction between treatment and time (P < 0.05). On day 2 there was no significant influence of treatment group (P > 0.05). Glucose and insulin rose to higher (P < 0.01) peak concentrations in the PHS group on day 1 when compared to the PLS and PO groups, with no difference (P > 0.05) detected between the PLS and PO groups. These results are reflected in greater areas under the concentration-time curves for glucose and insulin in the PHS group on day 1 (P < 0.05). On day 2 there were no differences in any of the glucose and insulin characteristics for any of the treatment groups (P > 0.05). These results indicate a clear difference in the glycemic and insulinemic effect of the PHS feed compared to the PLS and PO groups. Of further interest are the glucose and insulin characteristics of these pasture-kept mares that indicate a low insulin sensitivity and high insulin secretory response. This study provides further information on factors influencing glycemic and insulinemic responses in horses.  相似文献   

美国白蛾生物学上的几个重要特性   总被引：12，自引：0，他引：12  

魏晓棠  肖海军  杨东  吴少会  薛芳森  邵秀玲  吴兴海 《植物检疫》2006,20(1):14-17

本文对青岛市美国白蛾Hyphandria cunez种群的几个重要生物学特性进行了调查，获得了如下有意义的结果。（1）在生态光周期范围内，该虫显示了一个典型的长日照型昆虫，临界日长为14h 30min。然而在全光条件下，有41.2％的个体滞育；在全暗条件下则有83．7％的个体发育。（2）第1代蛹在自然条件下羽化的结果表明，部分个体的蛹期显著延长，呈现了夏季滞育。（3）滞育蛹置于25℃，LD16：8下滞育能够解除，但死亡率极高。（4）雄虫前翅黑斑的出现是由光周期控制的，只有在短日照下诱导的滞育蛹，滞育解除后羽化出来的雄虫才会出现黑斑。  相似文献   

Potential allelopathic influence of certain pasture weeds     

A. E. Smith 《Crop Protection》1990,9(6):410-414

Laboratory and growth chamber research was conducted to determine the potential allelopathy of tissue harvested from certain weeds commonly found in pastures. Results of bioassays indicated that the weeds dogfennel and mayweed chamomile are potentially allelopathic to alfalfa and Italian ryegrass seedlings. Leaf-tissue extracts from the two weed species reduced seedling growth more than stem and root extracts. In most experiments alfalfa seedlings were influenced more than Italian ryegrass seedlings and seedling growth was influenced more than seed germination. Leaf tissue from the weed species mixed into potting soil at a concentration as low as 0.25% (w/w) significantly reduced alfalfa and Italian ryegrass plant development and foliage production. Extract and tissue concentration used in this research were estimated to be similar to concentrations expected to occur within the pasture ecosystem and below concentrations that would result in hypertonicity in the bioassays.  相似文献   

牛秸秆及牧草的补饲与替代率     

冀一伦 《动物营养学报》1998,(3)

秸秆及天然牧草是我国养牛的主要饲料，但喂秸秆及牧草营养不全，需要补饲，只要补饲得当就可增加干物质食入量。替代率是表示食入量的重要指标。本文综述了牧草补饲、秸秆的补饲及舍饲粗料的能量补饲与替代率，以便提高干物质食入量。促进牛的生产力。  相似文献   

Amazonian deforestation and global warming: carbon stocks in vegetation replacing Brazil''s Amazon forest   总被引：8，自引：0，他引：8  

Philip M. Fearnside 《Forest Ecology and Management》1996,80(1-3):21-34

Carbon stocks in vegetation replacing forest in Brazilian Amazonia affect net emissions of greenhouse gases from land-use change. A Markov matrix of annual transition probabilities was constructed to estimate landscape composition in 1990 and to project future changes, assuming behavior of farmers and ranchers remains unchanged. The estimated 1990 landscape was 5.4% farmland, 44.8% productive pasture, 2.2% degraded pasture, 2.1% ‘young’ (1970 or later) secondary forest derived from agriculture, 28.1% ‘young’ secondary forest derived from pasture, and 17.4% ‘old’ (pre-1970) secondary forest. The landscape would eventually approach an equilibrium of 4.0% farmland, 43.8% productive pasture, 5.2% degraded pasture, 2.0% secondary forest derived from agriculture, and 44.9% secondary forest derived from pasture. An insignificant amount is regenerated ‘forest’ (defined as secondary forest over 100 years old). Average total biomass (dry matter, including below-ground and dead components) was 43.5 t ha⁻¹ in 1990 in the 410 × 10³ km² deforested by that year for uses other than hydroelectric dams. At equilibrium, average biomass would be 28.5 t ha⁻¹ over all deforested areas (excluding dams). These biomass values are more than double those forming the basis of deforestation emission estimates currently used by the Intergovernmental Panel on Climate Change (IPCC). Although higher replacement landscape biomass decreases net emissions from deforestation, these estimates still imply large net releases.  相似文献   

Soil properties and nitrogen availability in silvopastoral plantings of Acacia melanoxylon in North Island, New Zealand     

I.L. Power  B.S. Thorrold  M.R. Balks 《Agroforestry Systems》2003,57(3):225-237

Acacia melanoxylon, a N₂-fixing timber tree occurring naturally in eastern Australia, is now promoted as a component of silvopastoral systems; but the interaction of the tree with pasture and soils has not been adequately studied. This study investigated the effects of Acacia melanoxylon on soil nitrogen (N) levels, N availability, soil pH, bulk density, organic carbon, C:N ratios and soil moisture in three separate silvopastoral sites with contrasting soil types in the North Island of New Zealand. At each site four tree stocking rates were studied (0, 500, 800, and 1700 stems ha^–1). The trees were nine years old at the time of the study. Soil samples from each study site were taken once at three depths (0 to 75 mm, 75 to 150 mm, and 150 to 300 mm), with three replicates per tree stocking rate. Soil analyses showed that although there were differences between soil types, few statistically significant differences occurred due to tree stocking rate. A greenhouse pot trial growing ryegrass (Lolium multiflorum L. cv. Concord) in soil from the A horizon of each soil type from under the trees and the open pasture found that ryegrass yield, N uptake and N supply increased with increasing tree stocking rate. Increased N supply under the trees, coupled with greater soil moisture compared to the open pasture may have accounted for the higher pasture yield under Acacia melanoxylon compared to non dinitrogen fixing tree species. This study suggested that Acacia melanoxylon in a silvopastoral system had the potential to increase soil N availability.This revised version was published online in November 2005 with corrections to the Cover Date.  相似文献   

条带式改良陡坡草地生产性能的研究     

董宽虎  穆虎龙 《山西农业大学学报(自然科学版)》1993,13(1):34-37

本试验对条带式补播改良陡坡草地的生产性能进行了研究。试验根据坡度分为小于25°、25～35°和大于35°的坡地三个处理组。其结果表明,条带式改良草地可以提高产草量,较天然草地三个坡度级分别提高200.39、253.12和203.27%(P<0.01),又可以改善草群品种,豆科牧草分别占总产草量的48.97、72.33和84.14%,且有毒有害植物明显减少。植被盖度由原来的42.5%增加到83.5%,将蒿属植物为建群种的群落变为沙打旺—野艾蒿—万年蓬组成的群落。  相似文献   

浙江省现行蚕品种越年蚕种解陈滞育时期的调查     

徐孟奎  姜永煌  黄子修  盛君良  陈灵方  潘美良 《蚕桑通报》1997,(1)

从生产用蚕种中抽样，对浙江省现行春用和夏秋用主要推广品种越年蚕种在浴消后及时进入5℃或2.5℃保护的解除滞育情况进行了调查，结果表明，蚕品种间解除滞育的迟早和快慢有明显差异，一代杂交种解除滞育时期比原种稍迟。供试原种，1月中旬基本上全部解除滞育，而供试一代杂交种，至2月上旬才全部解除滞育。根据本试验调查的结果，认为原种应适当提早浴消，以便在12月下旬、1月初入库为好。此外，夏蚕或早秋蚕用的越年蚕种，浴消后入库保护温度宜采用2．5℃，有利于延长解除滞育后的有效冷藏期限。  相似文献