西南山丘区土地整治中典型梯田样区的田坎响应研究  

Research on Farmland Field Ridge' s Responses of Typical Terrace Zones during the Land Consolidation in Southwest Hilly of China

作　　者：李建华[1,2] 张建生[1,2] 李成学[1,2] 郭晓飞[1,2] 陈运春[1,2] 余建新[1,2] 

机构地区：[1]云南农业大学水利学院,云南昆明650201 [2]云南农业大学国土资源科学技术研究中心,云南昆明650201

出　　处：《云南农业大学学报（自然科学版）》2015年第6期924-931,共8页Journal of Yunnan Agricultural University:Natural Science

基　　金：国土资源部公益性行业科研专项经费项目(201011016)

摘　　要：构筑稳定田坎是西南地区土地整治的重要工作之一。为明确土地整治与田坎的响应关系,本文基于田坎稳定性判别,以西南山丘区地形地貌特点,按照不同坡度划分为五类典型梯田样区,并构建标准田块和标准样区的田坎响应模型,分别分析其在土地整治中的响应。结果表明:田坎高与田面毛宽和净田面宽均呈正相关;典型平地样区中具有最大田面毛宽为50 m,最小样区总长197.63 m,最大新增耕地0.99 hm2,且当地形坡度增大,田坎高度相应增加才能扩大田面宽度和新增耕地面积;典型丘陵样区和山地样区中均表现为地形坡度增大,其可修筑的梯田面宽越窄,若田面宽度增大,则格田、田埂数量和占地均减少,且其条田响应显著。It is the important job for land consolidation to build the stable farmland field ridge in southwest hilly of China and in order to know their responses. Based on the stability of farmland field ridge, geographic features and different slopes, the southwest hilly was divided into five typical terrace zones and the farmland field ridge＇s response models of standard field and zone to their responses in the land consolidation were established. The results showed that there was positive correlation between the ridge height and net width with width of field. The maximum width is 50 m, the least the sum of the lengths is 197.63 m, the maximum new cultivated field is O. 99 hm2. The ridge height should increase so that the width and new cultivated field could both enlarge when slope of zone increasing in the typi- cal zone. And it is proved that the steeper the terrain is, the narrower the field width is; if the widthbecomes larger, the numbers of parcel and ridge and cultivated land will decrease, and then their re- sponses are conspicuous in the typical zone of hilly.

关 键 词：山丘区 典型样区 梯田 田坎 

分 类 号：F301.24[经济管理—产业经济]