土河以静观动：在交通要道沿途上挖一个两丈宽的坑，其内填沙土，通过每天查看有无人或动物经过的踪迹，来刺察敌踪，判断有无敌情，是一种固定的侦察方法。『胡兴军|新疆尉犁县克亚克库都克烽燧遗址唐代戍边生活的考古学研究』https://mp.weixin.qq.com/s?__biz=MzkxMjMyMDE2NQ==&mid=2247485084&idx=1&sn=8ec430513db5705d6f2c3ed810902932&chksm=c10ff556f6787c40769eb2db4af646a22464b4947cec98a5539d80c2372a3390db9b7868bca4&mpshare=1&srcid=111670D9PbzrvtSSQLic2t1O&sharer_shareinfo=a669657127b3d4e81c8fa162c56f2623&sharer_shareinfo_first=8aed2607325bc4553b865a9c83c36478&from=timeline&scene=2&subscene=2&sessionid=1700142547&clicktime=1700144922&enterid=1700144922&ascene=2&fasttmpl_type=0&fasttmpl_fullversion=6944355-zh_CN-zip&fasttmpl_flag=0&realreporttime=1700144922322&devicetype=pad-android-31&version=28002b37&nettype=WIFI&lang=zh_CN&countrycode=CN&exportkey=n_ChQIAhIQlNhgDBjSxR8xptqLrBFmIhLtAQIE97dBBAEAAAAAABsKCie9MhIAAAAOpnltbLcz9gKNyK89dVj0RPXD3KsTnA6HQRmP0zJ7zv2N9FVExN44Ue%2FCNeWCn0dShEMYR8khAlFmFE9HIXLqNkUKpVdeMF2YCXSg3vVPB%2FA7g3IoCGPwMzQajky829ST75cmbjoF27LvSH9ZDEcDIDr1qm9knuNm7H7J6c8T9JliH0OthqvNLDCQcsvMfXyTWPMvzsOjcTpbV2ygfpeVQzE0nqiXqLxZz%2FjBqipdUGMZUc6SdsvEmA5HhHOwahjgUKCE7gWi1g8K66ImVN6l3hgmr7Bslw%3D%3D&pass_ticket=LmgliGjY2MHupQpgGJrvqBoq93WK4Jgpp8ppdRk%2FwE%2BL%2FFHKoaYihA8cJGSLBlpuDLpcYrxyMo%2FxNiObujoJYg%3D%3D&wx_header=3