检索结果-南通市图书馆

Comparison of Methods for Evaluating the forage-livestock Balance of Alpine grasslands on the Northern Tibetan Plateau

引用

Journal of Resources and Ecology 2020年第3期11卷 272-282页

作者： CAO Yanan WU Jianshuang ZHANG Xianzhou NIU Ben HE Yongtao School of Earth Science and Engineering Hebei University of EngineeringHandan 056038HebeiChina Institute of Environment and Sustainable Development in Agriculture Chinese Academy of Agricultural SciencesBeijing 100081China Lhasa Plateau Ecosystem Research Station Key Laboratory of Ecosystem Network Observation and ModellingInstitute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China College of Resources and Environment University of Chinese Academy of SciencesBeijing 100049China

Livestock grazing is one of primary way to use grasslands throughout the world, and the forage-livestock balance of grasslands is a core issue determining animal husbandry sustainability. However, there are few methods for assessing the forage-livestock balance and none of those consider the dynamics of external abiotic factors that influence forage yields. In this study, we combine long-term field observations with remote sensing data and meteorological records of temperature and precipitation to quantify the impacts of climate change and human activities on the forage-livestock balance of alpine grasslands on the northern Tibetan Plateau for the years 2000 to 2016. We developed two methods: one is statical method based on equilibrium theory and the other is dynamic method based on non-equilibrium theory. We also examined the uncertainties and shortcomings of using these two methods as a basis for formulating policies for sustainable grassland management. Our results from the statical method showed severe overgrazing in the grasslands of all counties observed except Nyima(including Shuanghu) for the entire period from 2000 to 2016. In contrast, the results from the dynamic method showed overgrazing in only eight years of the study period 2000–2016, while in the other nine years alpine grasslands throughout the northern Tibetan Plateau were less grazed and had forage surpluses. Additionally, the dynamic method found that the alpine grasslands of counties in the northeastern and southwestern areas of the northern Tibetan Plateau were overgrazed, and that alpine grasslands in the central area of the plateau were less grazed with forage surpluses. The latter finding is consistent with field surveys. Therefore, we suggest that the dynamic method is more appropriate for assessment of forage-livestock management efforts in alpine grasslands on the northern Tibetan Plateau. However, the statical method is still recommended for assessments of alpine grasslands profoundly di

关键词： aboveground biomass alpine grasslands carrying capacity forage-livestock balance Northern Tibetan Plateau

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

国际牧草与草坪草育种新动向

引用

草学 2019年第3期 76-80页

作者：刘公社 Jing Zhang 于兴旺冯光燕于林青中国草学会生物技术专业委员会中国科学院植物研究所北京100093 Department of Crop andSoil Sciences University of Georgia Tifton Campus2360Rainwater Rd.TiftonGA31794United States 美国北卡州立大学 Department of Crop and Soil SciencesNorth Carolina State UniversityRaleighNC27695-7620United States 美国农业部牧草与草地研究实验室(USDA-ARS Forage and Range Research Lab)四川农业大学动物科技学院草学系四川成都610000 中国农业科学院草原研究所内蒙古呼和浩特010010

中国是一个草原和草种资源大国,在气候变化和社会经济发展过程中如何以全球视野保护和开发草种资源?如何提高资源的研发和利用效率?带着这些问题,本文作者参加了2019年在美国奥兰多举办的'国际牧草与草坪草育种会议',获得了大量动态信... 详细信息

中国是一个草原和草种资源大国,在气候变化和社会经济发展过程中如何以全球视野保护和开发草种资源?如何提高资源的研发和利用效率?带着这些问题,本文作者参加了2019年在美国奥兰多举办的'国际牧草与草坪草育种会议',获得了大量动态信息。本文从现代育种与遗传工具、表型组学技术、育种与遗传资源、分子工具在育种上的应用、内生真菌研究等方面对大会主要内容进行了综述,并指出基于智能化表型数据的育种方法成为热点,正在迅速突破,基于基因组的育种技术趋于成熟。

关键词：牧草与草坪育种新动向

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Fundamental Strategic Shift Required by the Expensive Ecological Policy in Chinese grasslands

引用

Journal of Resources and Ecology 2022年第6期13卷 955-963页

作者： ZHU Jiapei XU Xingliang LI Tong LIU Yali YANG Yaqian CUI Xiaoyong Sino-Danish College University of Chinese Academy of SciencesBeijing 100049China Sino-Danish Center for Education and Research Beijing 100049China Key laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China CAS Center for Excellence in Tibetan Plateau Earth Sciences Chinese Academy of SciencesBeijing 100101China College of Resources and Environment University of Chinese Academy of SciencesBeijing 100049China College of Life Sciences University of Chinese Academy of SciencesBeijing 100049China Beijing Yanshan Earth Critical Zone and Surface Fluxes National Research Station University of Chinese Academy of SciencesBeijing 101408China

grasslands have critically important ecological and economic values while most of them have been suffering from various degrees of degradation in China due to overgrazing. The “forage-Livestock Balance”(FLB)policy has been implemented for more than a decade, aims to balance the relationship between forage productivity and grazing consumption of grasslands by livestock. According to the review of statistical data and literatures on policy evaluation, FLB-dominated subsidies for grassland ecological conservation policies are ineffective on grassland restoration, livestock reduction in some overloaded areas and improvement on herdsmen livelihood. To deal with the dilemma, we suggest a fundamental shift of strategy from controlling livestock numbers to maintaining and improving grassland health(MIGH) based on ecological theories, and promote the sustainable development of grassland in China. The results show that, FLB policy failed to obtain expected benefits mainly because it interfered with the herders’ autonomous use of contracted grasslands along with the defects of its underlying theory and methodologies. Implementing reward and punishment based on ecosystem health will not only motivate herders to manage their grassland autonomously, but also be more scientific and feasible than FLB.

关键词： forage-livestock balance grassland degradation grassland restoration herders’livelihood subsidy

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：