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盐渍化草地培育的理论基础 被引量:11
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作者 朱兴运 沈禹颖 +1 位作者 王锁民 赵银 《草业科学》 CAS CSCD 北大核心 1997年第5期20-22,27,共4页
在对河西走廊盐渍化草地土壤、植被改良培育研究的基础上,结合前人的资料,对河西走廊盐生植物的耐盐机制、小花碱茅和朝鲜碱茅改良盐渍土壤的机理、盐渍化草甸草地培育原理等问题进行了简要论述。
关键词 盐渍化 草地 耐盐机制 改土机制 草地培育
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Farmland Capitalization an Urgen issue in Institutional Reform
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作者 张晓山 《China Economist》 2011年第1期49-57,共9页
Developing modern agriculture is an important aspect of urban and rural integration. Chintz has adopted a new, highly compatible, multipronged approach. Judgingfrom current agricultural and rural policies, factors lik... Developing modern agriculture is an important aspect of urban and rural integration. Chintz has adopted a new, highly compatible, multipronged approach. Judgingfrom current agricultural and rural policies, factors like capital, labor and land will continue to interact and revolve. The transformation of China's rural land tenure system is at a critical posifion in the overall strategy of developing tile rural economy. However, rural institutional reform will inevitably be constrained by the path and pattern China's industrialization, urbanization and agricultural modernization take. Creating a new pattern of urban and rural socioeconomic integration requires reform and improvement of rural grassroots governance structure. The interaction and reconsolidation of the factors have again become intertwined with the superstructure of rural society and will inevitably affect the direction and pace of rural grassroots governance structural reJbrm. Protecting the economic interests of farmers while respecting their democratic rights will always be at the heart of agricultural modernization. 展开更多
关键词 mode of agricultural modernization reform of rural land tenure system structure of rural grassroots governance socialist new countryside
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Biochar for Sustainable Soil Health:A Review of Prospects and Concerns 被引量:14
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作者 Aabid H.LONE Ghulam R.NAJAR +2 位作者 Mumtaz A.GANIE Javid A.SOFI Tahir ALI 《Pedosphere》 SCIE CAS CSCD 2015年第5期639-653,共15页
Biochar as a soil amendment is confronted with the challenge that it must benefit soil health as it can be by no means separated from soils once it is added. The available literature even though sparse and mostly base... Biochar as a soil amendment is confronted with the challenge that it must benefit soil health as it can be by no means separated from soils once it is added. The available literature even though sparse and mostly based on short-term studies has been encouraging and the trend obtained so far has raised many hopes. Biochar has been reported to positively impact an array of soil processes ranging from benefiting soil biology, controlling soil-borne pathogens, enhancing nitrogen fixation, improving soil physical and chemical properties,decreasing nitrate(NO-3) leaching and nitrous oxide(N2O) emission to remediation of contaminated soils. However, very little biochar is still utilized as soil amendment mainly because these benefits are yet to be quantified, and also the mechanisms by which the soil health is improved are poorly understood. Due to the infancy of research regarding this subject, there are still more questions than answers. The future research efforts must focus on carrying out long-term experiments and uncover the mechanisms underlying these processes so that key concerns surrounding the use of biochar are addressed before its large scale application is recommended. 展开更多
关键词 nitrate leaching nitrogen fixation nitrous oxide emission soil amendment soil biology soil-borne pathogens soil enzymes soil remediation
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