地理研究 ›› 2018, Vol. 37 ›› Issue (3): 635-646.doi: 10.11821/dlyj201803014
• 研究论文 • 上一篇
史静静1,2(), 杨琳1,3(
), 曾灿英4, 朱阿兴1,4,5,6, 秦承志1,2, 梁朋1,2
收稿日期:
2017-09-26
修回日期:
2017-12-19
出版日期:
2018-03-15
发布日期:
2018-04-25
作者简介:
作者简介:史静静(1994- ),女,河北邯郸人,硕士,研究方向为地理空间分析与系统模拟。E-mail:
基金资助:
Jingjing SHI1,2(), Lin YANG1,3(
), Canying ZENG4, Axing ZHU1,4,5,6, Chengzhi QIN1,2, Peng LIANG1,2
Received:
2017-09-26
Revised:
2017-12-19
Online:
2018-03-15
Published:
2018-04-25
About author:
Author: Shi Zhenqin (1988-), PhD, specialized in regional development and land space management in mountain areas. E-mail:
*Corresponding author: Deng Wei (1957-), Professor, specialized in mountain environment and regional development.
E-mail:
摘要:
研究影响不同土壤属性空间分布的协同环境因子及其作用尺度,对于理解不同土壤属性的成土发展、土壤推测制图及针对多种土壤属性的空间采样设计具有重要意义。针对多种土壤属性,探索不同土壤属性的重要相关环境因子及其作用尺度,并就不同环境因子及其尺度的不同对土壤属性推测制图的影响展开研究。以黑龙江省鹤山农场为研究区,以表层砂粒、粉粒、黏粒、有机质含量和土壤厚度5种土壤属性为研究对象,根据计算邻域窗口大小的不同,生成173个不同尺度的地形因子,对单尺度地形因子和多尺度地形因子进行重要性排序,并根据重要性排序构建单尺度环境因子集1和多尺度环境因子集2,和基于专家知识选出的基准环境因子集3进行制图精度的对比。结果表明:当单尺度地形因子进行重要性排序选择时,所选出的5种土壤属性的重要相关环境因子与基准环境因子集3明显不同。当多尺度环境因子参与时,尽管对各土壤属性的作用尺度不同,各土壤属性排名靠前的因子绝大多数是基准环境因子。砂粒和粉粒的重要相关因子及作用尺度相当,但与黏粒的重要相关因子和作用尺度差别很大,有机质和土壤厚度的重要相关因子十分相似。环境因子集2较基准环境因子集3的制图精度显著提高,RMSE均值提高百分比为7.8%~21.3%,较环境因子集1的制图RMSE均值提高百分比为8.7%~16.5%。因此,针对不同的土壤属性进行制图或采样设计时,需充分考虑其环境因子和作用尺度的不同,针对基准环境因子选择适宜的尺度较选择不同的相关环境因子更重要。
史静静, 杨琳, 曾灿英, 朱阿兴, 秦承志, 梁朋. 土壤制图中多目标属性的环境因子及其尺度选择——以黑龙江鹤山农场为例[J]. 地理研究, 2018, 37(3): 635-646.
Jingjing SHI, Lin YANG, Canying ZENG, Axing ZHU, Chengzhi QIN, Peng LIANG. Selection of environmental variables and their scales in multiple soil properties mapping: A case study in Heilongjiang Heshan Farm[J]. GEOGRAPHICAL RESEARCH, 2018, 37(3): 635-646.
表2
环境因子数据"
环境因子 | 英文代称 | 软件 | 分析尺度 |
---|---|---|---|
高程 | Elevation | - | 10 m |
地形湿度指数 | TWI | SoLIM | n/a |
地形特征指数[ | TCI | SimDTA | n/a |
坡位[ | Slopepos | SimDTA | n/a |
距最近排水的高差[ | Hand | Python | n/a |
坡度 | Slope | SoLIM | 30~490 m |
坡向(cosine) | Cosasp | SoLIM | 30~490 m |
平面曲率 | Planc | SoLIM | 30~490 m |
剖面曲率 | Profic | SoLIM | 30~490 m |
地形粗糙指数[ | TRI | SimDTA | 30~490 m |
地形部位指数[ | TPI | SimDTA | 30~490 m |
地形起伏度[ | Relief | SimDTA | 30~490 m |
表3
每种土壤属性所选择的环境因子集1、环境因子集2和基准环境因子集3"
砂粒 | 粉粒 | 黏粒 | 有机质 | 厚度 | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
环境因子集1 | 环境因子集2 | 环境因子集1 | 环境因子集2 | 环境因子集1 | 环境因子集2 | 环境因子集1 | 环境因子集2 | 环境因子集1 | 环境因子集2 | 基准环境因子集 | ||||
Slopepos | Slope31 | TPI3 | Planc39 | Elevation | Elevation | Elevation | Profic31 | TRI3 | Slope11 | Planc3 | ||||
Ref3 | Planc39 | Slopepos | Slope45 | Slope3 | Planc45 | Hand | Elevation | Elevation | Cosasp43 | Profic3 | ||||
TPI3 | Cosasp41 | Elevation | Profic11 | Planc3 | Profic25 | TRI3 | Planc11 | Hand | Elevation | Slope3 | ||||
Hand | TWI | Hand | Cosasp43 | Hand | Slope15 | Slopepos | TPI17 | Cosasp3 | Planc19 | TWI |
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