以遥感和地面调查数据为基础，结合生态系统长期监测数据，定量评估潍坊市的土壤保持功能，评价结果显示，潍坊市土壤保持量分布呈现明显的空间异质性，土壤保持量较高的区域主要集中在西南部的森林生态系统区域，该区域土壤保持量远高于潍坊市其他地区，土壤的抗侵蚀能力较强；2015~2020年期间，潍坊市土壤保持量呈先上升后小幅下降的趋势，总体呈现增强趋势，相较于2015年，2020年土壤保持量总量增加2.8X108t.hm—2/a，土壤抗侵蚀能力逐渐增强。
关键词: 潍坊市 / 2015~2020年 / 土壤保持量 / 动态变化 / 遥感监测
Abstract:
The soil retention function of weifang city is quantitatively evaluated based on remote sensing and ground survey data , as well as the long-term ecosystem monitoring data. The evaluation results show that distribution of soil retention amount in weifang presents obvious spatial heterogeneity , with the forest ecosystem region in southwest weifang enjoying much higher soil retention amount and much stronger soil erosion resistance than other areas in the city. From2015to2020, soil retention amount in weifang increased first and then decreased slightly , showing an overall strengthening trend. compared with2015, the total amount of soil retention in2020increased by2. 8X108t. hm — 2/a , and soil erosion resistance was gradually enhanced.
Keywords: weifang city / from2015to2020 / soil retention amount / dynamic change / monitoring by remote sensing