Eco-Environment Construction and Sustainable Agriculture Development in the Loess Plateau of Northern Part of Shaanxi Province
Eco-Environment Construction and Sustainable Agriculture Development in the Loess Plateau of Northern Part of Shaanxi Province
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发表时间：
2004
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通讯作者：
Zheng Fen-li
中科院分区：
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作者：
Zheng Fen-li
陕西省北方黄土高原地处干旱半干旱区，由风沙区、沟丘区和高平原深沟区组成，严重的水土流失、土地沙化和脆弱的生态环境严重制约着当地社会经济的发展。经过40多年的水土保持综合治理，部分地区水土流失和土地沙化得到控制，生态环境得到改善，农业生产条件得到改善，粮食产量增加，上述成就证明，通过水土保持综合治理，生态环境可以得到根本改善，实现可持续发展，但整个区域生态环境恶化的趋势尚未扭转，因此，生态环境建设仍是一项长期而艰巨的任务，根据当地生态环境状况和几十年来生态环境建设的经验教训，当地生态环境建设要以环境整治为基础，加强水土保持型生态农业建设，实现区域可持续发展。在生态环境重建中，生产性农田建设是基础，植树种草是改善生态环境的关键措施。旱地农业增产技术，大力推广集水节水技术，充分有效地利用雨水资源。
The Loess Plateau of the northern part of Shaanxi Province,located in arid and semi-arid region,consists of wind-sand area,gully-hilly area and high plain and deep gully area.Severe soil erosion,land desertification and fragile eco-environment severely restrict local social-economic development.Through comprehensive harnessing of soil and water conservation for over 40 years,soil and water loss and land desertification in certain region have been controlled,eco-environment has changed better,which makes agricultural production conditions improve,grain production increase,countryside economy develop speedily.The above mentioned accomplishments prove that through comprehensive harnessing of soil and water conservation,eco-environment can be thoroughly improved and sustainable development may be realized.However,the worsening trend of eco-environment of whole region has not been reversed yet.Therefore,eco-environment construction is still an arduous task for a long time.According to local eco-environmental conditions and experiences and lessons in eco-environmental construction for over several decades,local eco-environmental construction should take environmental improvement as a basis,strengthen construction of eco-agriculture with soil and water conservation and realize regional sustainable development.In the rebuilding eco-environment,productive farmland construction is a base,planting trees and bushes and growing grasses are key measures to improve eco-environment.Dryland farming techniques of increasing crop yield,techniques ofwater harvest and water-saving should be greatly spread to use rainfall resources fully and efficiently.