...吉林西部 [gap=1297]storal ecotone； land use pattern； transfer matrix； landscape indexs； RS and GIS； Western Jilin province ...
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The factors including strong wind, less and uneven precipitation in summer, which decrease the maize yield, destruct the farmland ecosystem, and influences agricultural production in west Jilin province.
然而,这些研究尚未涵盖虚拟水概念的全部内涵。 吉林西部春季大风、降水少和生长季里降水不均及年际变化大等因素,使玉米产量低、产量不稳,农田生态系统比较脆弱,影响农业生产安全。
参考来源 - 吉林省西部不同耕作方式对玉米虚拟水影响的研究The spatial pattern optimization of agriculture landscape has been realized and it makes the western Jilin agricultural landscape spatial distribution tend to reasonable and establish good foundation to realize regional agricultural sustainable development.
利用该模型实现了吉林西部农业景观空间格局的优化,为吉林西部农业景观格局空间分布趋于合理,实现区域农业可持续发展奠定了良好的理论基础。
参考来源 - 基于GISAdaption aridity environment, paleosol in West Jijin stopped to growth and biomass of C4 plants begined to increasing. The second period of environment envolution in West Jijin is 2100～1200～0 aB.
前期3500～2800 aB.P.气候以半湿润、半干旱为主，吉林西部及邻近地区均发育有古土壤；后期2800～2100 aB.P.气候逐渐转向干旱，各地古土壤停止发育，古C4植物的生物量开始增加。
参考来源 - 吉林西部晚全新世环境演化·2,447,543篇论文数据，部分数据来源于NoteExpress
本文综合分析了半干旱的吉林西部地区水文地质环境与土地盐碱化的关系。
This paper is based on comprehensive analysis of hydrogeologic environment to discuss the relations between water resource and land salinization in semiarid region.
莫莫格湿地地处吉林西部，对该区域防治沙化、水源涵养、气候调节具有重要作用。
Momoge wetland, locates in western Jilin province, plays an important role in preventing desertification, water conservation and climate regulation.
吉林西部是一个典型的自然、经济和社会的复合系统，生态环境脆弱，土地沙化、碱化严重。
The western of Jilin Province is a typical compound system of nature, economy and society, with vulnerable eco-environment. The desertification and basification of the soil is serious there.
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