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181.
182.
浅谈我国农村环境监测 总被引:3,自引:0,他引:3
简述了国家对改善我国农村环境质量政策要求,介绍了全国农村环境质量例行试点监测基本情况,分析了农村环境质量监测存在的能力不足,体系不完善,缺乏代表性等主要问题。提出农村环境监测与农村“以奖促治”结合,以及开展农业面源污染监测的工作思路,以此推进农村环境保护。 相似文献
183.
对南通市24座乡镇地表水厂以及199座乡镇地下水厂的水源水质状况进行了调查.结果表明,地表水水源地中有14座水厂达标,其取水量占地表水取水总量62.8%.水体中主要污染物是NH3-N、石油类、Imn.全市乡镇地下水厂饮用水源水质达标水厂为56座,其取水量占地下水取水总量的26.2%.全市地下水中主要污染物为NH3-N、... 相似文献
184.
Matthew B. Roscher Hampus Eriksson Daykin Harohau Senoveva Mauli Jeremie Kaltavara Wiebren J. Boonstra Jan van der Ploeg 《Ambio》2022,51(10):2107
Livelihood diversification has become an integral focus of policies and investments aiming to reduce poverty, vulnerability, and pressure on fishery resources in coastal communities around the globe. In this regard, coastal fisheries in the Pacific Islands have long been a sector where livelihood diversification has featured prominently. Yet, despite the widespread promotion and international investment in this strategy, the ability of externally funded livelihood diversification projects to facilitate improved resource management and rural development outcomes often remains inconsistent. We argue these inconsistencies can be attributed to a conceptual ambiguity stemming from a lack of attention and awareness to the complexity of livelihood diversification. There is still much to learn about the process of livelihood diversification, both in its theoretical conceptualizations and its practical applications. Herein, we utilize a common diversity framework to clarify some of this ambiguity by distinguishing three diversification pathways. These pathways are illustrated using an ideal–typical Pacific Island coastal household and supported by examples provided in the literature that detail livelihood diversification projects in the Pacific. Through this perspective, we seek a more nuanced understanding of what is meant within the policy and practice goal of livelihood diversification. Thereby enabling more targeted and deliberate planning for development investments that facilitates outcomes in support of sustainable livelihoods. 相似文献
185.
本文主要阐述了目前农村环境存在的污染问题及其所带来的后果,分析了环境污染问题存在的原因,针对存在的问题,提出了农村环境防治的措施,指在为农村环境保护工作提供参考,为社会主义新农村建设提供一定的理论论据。 相似文献
186.
187.
Louis V. Verchot Meine Van Noordwijk Serigne Kandji Tom Tomich Chin Ong Alain Albrecht Jens Mackensen Cynthia Bantilan K. V. Anupama Cheryl Palm 《Mitigation and Adaptation Strategies for Global Change》2007,12(5):901-918
Agriculture is the human enterprise that is most vulnerable to climate change. Tropical agriculture, particularly subsistence
agriculture is particularly vulnerable, as smallholder farmers do not have adequate resources to adapt to climate change.
While agroforestry may play a significant role in mitigating the atmospheric accumulation of greenhouse gases (GHG), it also
has a role to play in helping smallholder farmers adapt to climate change. In this paper, we examine data on the mitigation
potential of agroforestry in the humid and sub-humid tropics. We then present the scientific evidence that leads to the expectation
that agroforestry also has an important role in climate change adaptation, particularly for small holder farmers. We conclude
with priority research questions that need to be answered concerning the role of agroforestry in both mitigation and adaptation
to climate change. 相似文献
188.
This article provides a case study of small-scale private sector provision of water supply in Paraguay, where the Government has sought sector policy reforms that would encourage private investment in drinking water supply. Ironically, while the Government has focused almost entirely on garnering the interest of large private international water companies, much smaller local firms have already made significant investments in drinking water services for the poor, all without any participation or encouragement from the Government. Outside Paraguay's two major cities, Asunción and Ciudad del Este, large numbers of aguateros currently provide piped potable water to lower-income people. Though the aguateros have little legal footing — they are in many respects informal and unregulated —they have constructed as much as one third of all the new drinking water connections in these two cities over the past 20 years. The small-scale water systems in Paraguay offer a model of financial, economic, and water-use efficiency. This article asserts that an abundance of groundwater resources, cheap access to electricity for pumping, and a spirit of informal investment, among other variables, has spawned widespread use of this approach. This article documents and analyzes the features of these independent small-scale water providers in Paraguay and the efficiency they bring to the use of water resources in meeting drinking water demands among the poor. It also cautions against policies that may trample on such entrepreneurial spirit in the name of State-managed privatization. 相似文献
189.
Miguel A. Altieri 《Natural resources forum》2000,24(2):97-105
The great majority of farmers in Latin America are peasants who still farm small plots of land, usually in marginal environments utilizing traditional and subsistence methods. The contribution of the 16 million peasant units to regional food security is however substantial. Research has shown that peasant systems, which mostly rely on local resources and complex cropping patterns, are reasonably productive despite their small land endowments and low use of external inputs. Moreover analysis of NGO-led agroecological initiatives show that traditional crop and animal systems can be adapted to increase productivity by biologically re-structuring peasant farms which in turn leads to optimization of key agroecosystem processes (nutrient cycling, organic matter accumulation, biological pest regulation, etc.) and efficient use of labour and local resources. Examples of such grassroots projects are herein described to show that agroecological approaches can offer opportunities to substantially increase food production while preserving the natural resource base and empowering rural communities. 相似文献
190.
Two frequent beliefs about rural environmental attitudes are examined conceptually and empirically: (1) the common conception
that rural environmental concerns are expressed predominantly by wealthy community newcomers; and (2) the related position
that long-time rural residents are hostile to the environmental cause.
We argue conceptually, through the use of a 2×2 community matrix, that environmental attitudes are equally likely to be expressed
by what we term “upper middle income newcomers,” “lower middle income newcomers,” “upper middle income locals,” and “lower
middle income locals.” Empirically, we find that although wealthy newcomers express the strongest environmental attitudes
in the community, their concerns represent only a small percentage of rural environmental attitudes consisting of respondents
who make less than $40,000 a year in household income are over 40 years of age, possess less than a college education, and
work in a nonprofessional occupation. This new category expresses environmental concerns at least equal to the rest of the
community on three of four measures of environmental attitudes.
The findings provide insight into the widespread and cross-sectional nature of rural environmental concern. The implication
is that environmental groups will find significant sources of political support in rural communities, provided they craft
their environmental message in a language consistent with rural attitudes and values.
Things are gettin' bad fast. Easterners and environmentalists comin' down here from the big cities are tryin' to turn our
way of life completely upside down.
A western US rancher quoted in Krakauer (1991) 相似文献