共查询到20条相似文献，搜索用时 46 毫秒
1.
草原是畜牧业发展的基础,加强草原保护不仅有利于维持自然生态环境的平衡,而且还有利于牧民生活水平的改善、牧区经济的发展以及国家的长治久安。然而,由于草原引起的环境问题越来越突出,使得草原管理与草原治理成为了国家关注的热点问题。本文将分为两部分进行研究,分析近年来在草原管理中面临的问题和困境,最后提出促进甘肃中西部干旱半干旱地区草原管理的措施与建议,促进牧区生态、牧民生活、牧区经济的保障与发展。 相似文献
2.
牧区草原承包制从20世纪80年代推广至今,历时近30年。然而,这项旨在根除“草原大锅饭”弊端,激发牧民保护、建设和合理利用草原积极性,从根本上遏制草原退化趋势的举措,其实际效果究竟如何,目前学术界尚存在很大争议。本研究通过问卷调查、走访牧户和实地调查等方法对甘南牧区草原在发展中所带来的问题以及如何完善牧区草原承包制度进行了初步的探讨,认为草原承包到户的实际效果与期望效果相去甚远,有些方面甚至走向了初衷的反面。在深刻分析甘南牧区草原承包现存问题的基础上,重点就如何完善草原承包制度提出了建议。 相似文献
3.
目前我国草原退化形势依然严峻。已有的草原管理模式难以应对草原生态系统的动态性、不确定性等复杂性特征。适应性管理是管理动态、不确定性系统的有力工具之一。笔者概述了适应性管理理论与实践在国内外的研究现状,分析了我国草原适应性管理的重点任务,提出加强草原生态系统基础研究、整合多维度理论、知识与方法、开展模式示范、构建数字草原信息网络、提高监测预测能力等重要措施,为全面开展草原适应性管理,遏制我国草原退化,维持系统稳定并提高草原生产力水平奠定基础。 相似文献
4.
近年来,在全球气候不断变化的影响下,自身气候条件较差的荒漠草原地区更加趋于暖干化。以内蒙古自治区四子王旗荒漠草原上不同苏木和嘎查为例,通过构建有气候变化、有适应性措施的情景,利用家庭牧场优化管理模型,分析牧民应对极端气候应该利用的适应性措施及其所带来的经济效益,帮助牧民缓解因气候变化而带来的困难,并增强牧民适应气候变化的能力,使应对气候变化的适应性行为有效性得到大大增强,以此来降低极端气候灾害对牧区影响的不可预测性。 相似文献
5.
采用典型调查和数据对比分析的方法,对甘肃牧区草原生态现状及存在的问题进行了分析,提出了要逐步构建以多层次、多元化的草原生态牧业、草原生态工业、草原生态旅游业为主体框架的牧区生态经济模式的草原保护与建设的建议和措施。 相似文献
6.
摘要：气候变化及其对生态系统的影响已成为研究热点之一,研究和了解气候变化对草原生态系统的影响是适应和应对气候变化的重要方面。本研究从土壤、植被、家畜及牧区社会经济等方面概述了气候变化对内蒙古草原自然生态系统的影响,并指出了目前研究中存在的问题,建议加强探讨草地退化动因、阐释草原碳库问题、探索放牧利用优化调控机制、积极开展草原适应性管理等方面的研究,为草原生态系统更好应对气候变化,维持系统稳定及牧区社会经济可持续发展奠定基础。 相似文献
7.
牧区制度创新是关系到草原畜牧业可持续发展和牧区经济体制改革的重大问题。针对现行牧区产权制度存在的问题．本文进行了深入的分析．并通过深入的调查研究给予了充分论证。提出了促进牧区可持续发展的制度创新思路。 相似文献
8.
<正>一、加强草原保护制度建设,织密制度篱笆1.完善基本草原保护制度。黑龙江省畜牧兽医局于2015—2016年组织牧区15个牧业半牧业县和区域内的农垦系统对基本草原划定工作进行了再完善,共划定基本草原984万亩,并全部实现了区域内草原和基本草原空间分布数字化上图,纳入黑龙江省草原资源信息管理系统进行信息化管理。2015年以来,通过严格审查,据此驳回建设项目征占用基本草原申请10次。为落实非牧区基本草原保护制度,已将 相似文献
9.
"经济人"假设经过一系列修正、发展,尤其经过新制度学派和以布坎南为代表的公共管理学派的丰富,变得日益饱满与充盈,作为当代经济学中一块最重要的基石之一,其自利与理性的思想对于政治学领域中的人性、投票者行为和投票规则、政府行为、制度的建立与分析等问题具有一定的解释力。 相似文献
10.
阐述了半农半牧区草原执法监理工作的重要性,分析了半农半牧区草原执法监理工作现状及存在的问题,并根据半农半牧区特点,针对性地提出了加强半农半牧区草原执法监理工作的措施. 相似文献
11.
In late December 1985, 1485 institutional veterinarians and small and mixed animal clinics across Canada were sent a questionnaire in order to assess the status of Dirofilaria immitis in Canada in 1985 and 44% of them responded. Veterinarians reported that 137,300 dogs were blood-tested to check for microfilariae and 1210 dogs were found with heartworm. Another 36 dogs were amicrofilaremic but diagnosed with heartworm disease to give the total number diagnosed in 1985 as 1247 (0.91%). Heartworm was reported from all provinces except Prince Edward Island, Newfoundland and Saskatchewan but most (1126) of the cases were in Ontario. Southwestern Ontario continued to be the primary focus of the infection in Canada. From Quebec, 91 cases were reported mostly from and around Montreal. From Manitoba, 19 cases were reported from Winnipeg and surrounding areas. Heartworm was found most frequently in companion dogs over three years of age maintained mainly outdoors in rural areas. About 28% of the cases were observed with clinical signs of heartworm disease and 78% had a history of not having left Canada. 相似文献
12.
In late November 1988, 1581 small and mixed animal clinics and institutional veterinarians across Canada were sent a questionnaire in order to assess the status of Dirofilaria immitis in Canada in 1988, and 46% of them responded. Veterinarians reported that 181,577 dogs were blood-tested for heartworm disease and 367 dogs were found with D. immitis microfilariae. Another 60 dogs were amicrofilaremic but diagnosed with heartworm disease to give the total number of cases diagnosed in 1988 as 441 (0.24%). 相似文献
13.
In late December 1984, 1853 institutional veterinarians and small and mixed animal clinics across Canada were sent a questionnaire in order to assess the status of Dirofilaria immitis in Canada in 1984 and 35% of them responded. Veterinarians reported that 97,794 dogs were blood-tested to check for microfilariae and 1417 dogs (1.45% of those tested) were found with heartworm. Another 34 dogs were amicrofilaremic, but were diagnosed as having heartworm disease, to give the total number diagnosed in 1984 as 1451 (1.48%). Heartworm was reported from all provinces except Prince Edward Island and Newfoundland but most (1310) of the cases were in Ontario. In Quebec, 126 cases were reported mostly from west of Montreal. Heartworm was found most frequently in companion dogs over three years of age maintained mainly outdoors in rural areas. About 27% of the cases were observed with clinical signs of heartworm disease and 72% had a history of not having left Canada. Southwestern Ontario continued to be the primary focus of the infection. 相似文献
15.
In late November 1991, 1883 clinics in Canada were sent a questionnaire to assess the status of Dirofilaria immitis in dogs in 1991 and there was a 60.0% response. There were 344,031 dogs tested for heart-worm (HW), 627 were found infected and the prevalence of HW infection was 0.18%. There were 417 dogs with HW in Ontario, 116 in Manitoba, 38 in Quebec, 53 in British Columbia, three in Alberta, and one in Nova Scotia. In British Columbia, all of the infected dogs but one were from the Okanagan valley which, as from 1991, is a new focus of infection in Canada. Most dogs with HW had not been on preventive medication in 1990, and the prevalence among dogs tested and unprotected was 0.59%. That prevalence was considerably higher in endemic areas. Companion dogs, over three years of age and maintained primarily outdoors in rural areas, were most frequently infected. One cat was diagnosed with D. immitis and 33 dogs had Dipetalonema reconditium. 相似文献
16.
In late November 1989, 1732 clinics and institutional veterinarians were sent a questionnaire to assess the status of Dirofilaria immitis, and 51.7% responded. Of 247,716 dogs tested, 394 had D. immitis microfilariae and 51 were amicrofilaremic for a total of 445 cases and heartworm prevalence of 0.17%. Most (408) of these dogs had no preventive medication and the prevalence among dogs tested and unprotected was 1.01%. That prevalence was considerably higher in endemic areas. Thirty-seven dogs with heartworm had preventive medication. Heartworm was most frequent in companion dogs over three years of age maintained outdoors in rural areas. About 75% of the cases had never left Canada, 26% had clinical signs and 125 were not treated. Heartworm was reported from British Columbia, Manitoba, Ontario, Quebec, Nova Scotia and Newfoundland, but 383 cases were in Ontario. South-western Ontario was the primary focus of infection. There were 33 cases in Quebec and 24 in Manitoba, mainly found in and around Metropolitan Montreal and Winnipeg respectively. 相似文献
17.
In late November 1987, 1246 institutional veterinarians and small and mixed animal clinics across Canada were sent a questionnaire in order to assess the status of Dirofilaria immitis in Canada in 1987, and 50% of them responded. Veterinarians reported that 165,428 dogs were blood tested for heartworm disease and 511 dogs were found with D. immitis microfilariae. Another 78 dogs were amicrofilaremic but diagnosed with heartworm disease to give the total number of cases diagnosed in 1987 as 589 (0.35%). 相似文献
18.
In late December 1986, 1224 institutional veterinarians and small and mixed animal clinics across Canada were sent a questionnaire in order to assess the status of Dirofilaria immitis in Canada in 1986; 46% of them responded. Veterinarians reported that 150,989 dogs were blood-tested for microfilariae and 869 dogs were found with heartworm. Another 65 dogs were amicrofilaremic but diagnosed with heartworm disease and one was found with heartworm at necropsy to give the total number diagnosed in 1986 as 935 (0.62%). Heartworm was reported from Manitoba, New Brunswick, Ontario and Quebec, but most (810) of the cases were from Ontario. South-western Ontario continued to be the primary focus of the infection in Canada. There were 103 cases reported from Quebec, mostly from and around Montreal, and 21 cases from Manitoba, from Winnipeg and surrounding areas. Heartworm was found most frequently in companion dogs over three years of age maintained mainly outdoors in rural areas. About 33% of the cases were observed with clinical signs of heartworm disease and 81% had a history of not having left Canada. 相似文献
20.
In late December 1983, 2 800 veterinarians across Canada were sent a questionnaire in order to assess the status of heartworm disease in Canada in 1983 and 26% of them responded. Veterinarians reported that 59 504 dogs were blood-tested to check for microfilariae and 771 dogs (1.30% of those tested) were found with Dirofilaria immitis. Heartworm disease was diagnosed in all provinces except New Brunswick and Newfoundland but most (733) of the cases were in Ontario. Heartworm disease was found most frequently in companion dogs over three years of age maintained mainly outdoors in rural areas. About 31% of the cases were observed with clinical signs of heartworm disease and 64% had a history of not having left Canada. Southwestern Ontario continues to be the focus of the infection and most of the dogs there had not left the province previously. 相似文献
|
