黄土高原沟壑区王东沟流域土地利用/覆被变化过程初探  

Research on Land Use and Cover Change in Wangdonggou Watershed on Regional Gully Watershed on Loess Plateau

作　　者：张嘉宁[1] 王继军[2] 

机构地区：[1]西北农林科技大学,陕西杨陵712100 [2]中科院水利部水土保持研究所,陕西杨陵712100

出　　处：《中国农学通报》2009年第6期231-235,共5页Chinese Agricultural Science Bulletin

基　　金："十一五"国家科技支撑计划项目"黄土高原水土流失综合防治技术研究"(2006BAD09B10);中科院重大项目"耕地保育与持续高效现代农业试点工程"(KSCX-YW-09-07);国家自然科学基金"黄土丘陵区退耕区域农业生态经济系统耦合过程及其模式研究"(40771082)

摘　　要：黄土高原沟壑区王东沟流域从1986年至2006年的土地利用/覆被发生了较大变化,土地利用动态指数分别为:耕地3.21%,园地-36.11%,林地-4.05%,牧草地4.24%,居民点及独立工矿用地-0.62%,交通运输用地-12.27%,未利用地1.85%;变化趋势是:耕地逐年向园地流转,园地变化烈度较大,其他各类用地变化不太显著。引起这一变化的主要因素是自然、社会、经济、技术以及政策因素。结合这一变化,针对黄土高原沟壑区的实际情况,在黄土高原沟壑区土地利用经营与管理方面,应重视土地产出效益与粮食安全的关系,在保障区域粮食安全的基础上实现效益最大化。The status of land use and cover in Wangdonggou watershed on regional gully watershed on loss plateau has a big change from 1986 to 2006. Those are the dynamic index of land use in the area： cultivated land： 3.21%, orchard and perennial plantation：-36.11%, forest land：-4.05%, pasture and grazing land： 4.24% , rural settlement area and mining area and isolated industrial area：-0.62% , land for transportation： -12.27%, unused land： 1.85%. This is the tendency of those changes： cultivated land has been transferred to orchard and perennial plantation, the change of orchard and perennial plantation is obvious, the changes of the other land are inconspicuous. The reasons of those changes are Natural causes, society causes, economy causes, technology causes and policy causes. Because of this change and the real situation of regional gully watershed on loss plateau, for the part of land management and land administration we should attach importance to the relationship between the benefit of land production and the safety of foodstuff. First, we should ensure the safety of foodstuff in this area, and then we can realize the biggest benefit of land production.

关 键 词：黄土高原沟壑区 王东沟流域 土地利用/覆被变化 土地利用动态指数 影响因素 

分 类 号：F323.211[经济管理—产业经济]