²é¿´: 1076  |  »Ø¸´: 3

shangqixu

Í­³æ (СÓÐÃûÆø)

[ÇóÖú] ÐÂÊÖÇóÖú£¬ÇúÕ۵ĸå×Ó

һƪ¸å×ÓµÚÒ»´ÎͶÁËSoil Sci. Soc. Am. J.£¬Ð޻غóÖ±½Ó±»¾Ü£¬µ±Ê±ÐÞ¸ÄÊÇÕÒµÄËûÃǵĸ±Ö÷±à£¨ÀϰåÈÏʶ£©¸ø°ïæÐ޸ĵģ¬Ëû»¹Ëµ»ù±¾ÉÏÈÃÐ޸ľÍûÎÊÌ⣬½á¹ûºóÀ´Ö±½Ó¾ÝÁË£¬µÚ¶þ´ÎÓÖͶµÄSoil and Tillage Research£¬Ö±½Ó±»¾Ü£¬ÏÖÔÚͶPEDOSPHERE£¬Éó¸åÒâ¼û»ØÀ´ÁË£¬ÒªÇóReconsidered after major revision £¬ÎÒÒѾ­²»¸ÒÔÙ¸ÄÁË¡£¡£¡££¬ÏÂÃæÊÇÁ½Î»Éó¸åÈ˵ÄÒâ¼û£¬Çó¸÷λ´óÏÀ°ï°ïæ°¡¡£Ôõô¸Ä±È½ÏºÃ°¡£¬µÚ¶þλÉó¸åÈ˱íʾÊý¾Ý²»×㣬µ«ÐèÒª¼¸ÄêǰµÄʵÑéÊý¾Ý£¬¸ù±¾Ã»Óа취²¹³äʵÑ飬²¹³äÊý¾Ý°¡¡£´ó¼Ò½Ì½ÌÎÒ¸ÃÔõÃ´ËµÄØ£¬Õâ´ÎÔÙ±»¾Ü£¬ÎÒ¡£ÎÒ¡£ÎÒ¡£¡£¡£¡£
More research is still needed to be conducted in lowland soils (i.e., in rice production). The authors proposed two methods to quantify the SOC stocks. The discrepancy in the results from both methods has been noted, indicating that the overall SOC pool may not be sensitive enough to reflect such changes due to tillage treatments. Alternatively, more sensitive or labile SOC pool(s) is needed. Also, the follow questions should be clarified prior to be considered for publication.

Major Questions:
1.        The differences in SOC stock (Table III, on page 7) between NT and PT at 0-80 cm were 3.7% and 3.3% for FD and EMS, respectively. However, the statistic analysis indicated that the smaller one was significant. How can you explain that? What was the p-value for the ANNOVA?
2.        Using the proposed method, the SOC mass (Table I) of the FD method was around 84 Mg C ha-1 for the background soil. However, the greatest SOC at 0-20 cm in rice production was less than 66 Mg C ha-1. Does it suggest that rice production overall decrease SOC?
3.        The English should be improved for better understanding your studies.
4.        Please provide specific operators for each equation listed.


Minor Questions:
1.        Page 1, Line 7. Changes in tillage practice does not guranteen increase in SOC, even for conservational tillage.
2.        Page 2, Line3 13-18. Please provide reasonable explanation(s) why paddy soils have more SOC than upland soils.
3.        Page 3. Please provide rice cultivar information in the section of experimental design.
4.        Page 3, Line 39. What do you mean SOC of the grains? The organic carbon content?
5.        Page 5, Line 9. Can you read the equation?
6.        Page 12, Line 14. Change ¡®effect¡­¡¯ to ¡®Effect¡­¡¯.


I think the results and conclusions reached by the authors from their investigation are probably correct, but in my experience the results from studies such as this during the first few years may differ somewhat from those measured if the study is continued for a longer period of time. That may not be the case in this situation, but it may be something the authors want to consider. Hopefully this study is still ongoing and measurements continue to be collected.

My only concern regarding the whole manuscript is that no measurements were made of soil C levels before the experimental treatments were applied. It would greatly strengthen the conclusions of the authors if they could show where the soils were at the beginning and where they are after 4 years of these tillage treatments.  There are general results presented for the soil in Table 1, but no results are presented for the 0-80 cm profile. Somewhere in the discussion, it should be mentioned that even though there are apparently significant differences in total soil C after 4 years, there are no initial measurements to compare them to. If nothing else, it would at least be somewhat informational if the authors calculated the amount of soil C from the initial measurements in the 0-20 cm depth and then compared their results after 4 years to that. I don't know that the conclusions would change, but it might provide additional support for those conclusions.
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

shangqixu

Í­³æ (СÓÐÃûÆø)

³ÁµÃºÃ¿ì°¡£¬Ã»ÓÐÈ˸ø¿´¿´Ã´¡£¡£¡£
2Â¥2011-10-19 13:47:01
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

xingling

гæ (СÓÐÃûÆø)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï
shangqixu(½ð±Ò+1): лл£¬Ìý˵½øÈ븴ÉóµÄ½ÓÊܸÅÂʶ¼Í¦´óµÄ£¬°¥£¬ÎÒµÚÒ»´Î¾ÍÊǸ´É󱯾磬ËùÒÔÏÖÔÚµÚ¶þ´Î¸´ÉóºÜ¾À½á°¡ 2011-10-20 09:12:13
shangqixu(½ð±Ò+1): ¡ï¡ï¡ïºÜÓаïÖú, лл 2012-03-14 10:03:03
¸öÈËÒ»µãС½¨Ò飺ÌáµÄÿ¸öÐ޸Ľ¨Ò飬Äã¶¼µÃÈÏÕæÐ޸IJ¢×öºÃ»Ø¸´£¬4ÄêǰµÄ£¬Ö»Òª½áÂÛ¿ÉÐУ¬ÄÜÖØÏÖ£¬ÏÖÔÚÖØ²¹Ò²À´µÃ¼±£¬ÈôʵÔÚÎÞ·¨Öز¹ÊµÑ飬ÄãÒ²µÃ»Ø¸´Éó¸åÈË£¬±íÃ÷£º¼´Ê¹²»²¹ÊµÑ飬ÄãµÄ½á¹û²¢²»Êܵ½Ó°ÏìµÈһϵÁÐÔ­Òò¡£×£Äú³É¹¦
3Â¥2011-10-19 20:08:17
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

shangqixu

Í­³æ (СÓÐÃûÆø)

»¹ÓÐûÓÐÄÄλ¸ßÊÖ¸ø¿´Ï£¬Á½Î»Éó¸åר¼Ò¶¼ºÜÔÚÒâËÄÄêǰʵÑé½á¹ûµÄ¶Ô±È£¬µ«ÊÇËÄÄêǰûÓÐÈ¡Ñùµ½80cm£¬¹ÊÎÞ·¨²¹³äÊý¾Ý£¬µ«ÊµÑéǰ¸÷´¦Àí¼äÊý¾ÝÒ»Ö£¬ËÄÄêºóµÄ²îÒìÓ¦¸ÃͬÑù˵Ã÷һЩÎÊÌâ¡£²»ÖªµÀÕâÑùÐÞ¿ÉÒÔ²»~
4Â¥2011-10-24 10:16:23
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ shangqixu µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] Ò»Ö¾Ô¸Ìì½ò´óѧ»¯Ñ§¹¤ÒÕרҵ£¨081702£©315·ÖÇóµ÷¼Á +10 yangfz 2026-03-17 10/500 2026-03-18 20:14 by walc
[¿¼ÑÐ] Ò»Ö¾Ô¸Öк£Ñó²ÄÁϹ¤³Ìר˶330·ÖÇóµ÷¼Á +4 С²Ä»¯±¾¿Æ 2026-03-18 4/200 2026-03-18 19:54 by Î޼ʵIJÝÔ­
[¿¼ÑÐ] Ò»Ö¾Ô¸Öйúº£Ñó´óѧ£¬ÉúÎïѧ£¬301·Ö£¬Çóµ÷¼Á +4 1ËïÎò¿Õ 2026-03-17 4/200 2026-03-18 17:59 by fivewind
[¿¼ÑÐ] 26µ÷¼Á/²ÄÁÏ/Ó¢Ò»Êý¶þ/×Ü·Ö289/ÒѹýAÇøÏß +7 ²½´¨¿á×Ï123 2026-03-13 7/350 2026-03-18 17:12 by ¾¡Ë´Ò¢1
[¿¼ÑÐ] 297Çóµ÷¼Á +8 Ï·¾«µ¤µ¤µ¤ 2026-03-17 8/400 2026-03-18 14:30 by laoshidan
[¿¼ÑÐ] 0703»¯Ñ§µ÷¼Á £¬Áù¼¶Òѹý£¬ÓпÆÑо­Àú +10 êØÎõÙâ 2026-03-15 10/500 2026-03-18 14:19 by 007_lilei
[¿¼ÑÐ] 334Çóµ÷¼Á +3 Ö¾´æ¸ßÔ¶ÒâÔÚ»úÐ 2026-03-16 3/150 2026-03-18 08:34 by lm4875102
[¿¼ÑÐ] 268Çóµ÷¼Á +8 Ò»¶¨ÓÐѧÉÏ- 2026-03-14 9/450 2026-03-17 17:47 by laoshidan
[¿¼ÑÐ] ±¾ÈË¿¼085602 »¯Ñ§¹¤³Ì ר˶ +16 ²»ÖªµÀ½Ðʲô£¡ 2026-03-15 18/900 2026-03-17 17:05 by ruiyingmiao
[¿¼ÑÐ] ¶«ÄÏ´óѧ364Çóµ÷¼Á +5 JasonYuiui 2026-03-15 5/250 2026-03-16 21:28 by ľ¹Ï¸à
[¿¼ÑÐ] 285Çóµ÷¼Á +6 ytter 2026-03-12 6/300 2026-03-16 15:05 by njzyff
[¿¼ÑÐ] 327Çóµ÷¼Á +6 ʰ¹âÈÎȾ 2026-03-15 11/550 2026-03-15 22:47 by ʰ¹âÈÎȾ
[¿¼ÑÐ] Ò»Ö¾Ô¸¹þ¹¤´ó²ÄÁÏ324·ÖÇóµ÷¼Á +5 ãÆÐñ¶« 2026-03-14 5/250 2026-03-14 14:53 by ľ¹Ï¸à
[¿¼ÑÐ] 330Çóµ÷¼Á +3 ?½´¸øµ÷¼Á¹òÁË 2026-03-13 3/150 2026-03-14 10:13 by JourneyLucky
[¿¼ÑÐ] ²ÄÁÏÓ뻯¹¤Çóµ÷¼ÁÒ»Ö¾Ô¸ 985 ×Ü·Ö 295 +8 dream¡­¡­ 2026-03-12 8/400 2026-03-13 22:17 by ÐÇ¿ÕÐÇÔÂ
[¿¼ÑÐ] 0856²ÄÁÏÓ뻯¹¤301Çóµ÷¼Á +5 ÞÈÊø¹â 2026-03-13 5/250 2026-03-13 22:00 by ÐÇ¿ÕÐÇÔÂ
[¿¼ÑÐ] 26µ÷¼Á/²ÄÁÏ¿ÆÑ§Ó빤³Ì/×Ü·Ö295/ÇóÊÕÁô +9 2026µ÷¼ÁÏÀ 2026-03-12 9/450 2026-03-13 20:46 by 18595523086
[¿¼ÑÐ] 0703»¯Ñ§Çóµ÷¼Á +7 Â̶¹ÇÛ²ËÌÀ 2026-03-12 7/350 2026-03-13 17:25 by njzyff
[¿¼ÑÐ] 290Çóµ÷¼Á +3 ADT 2026-03-13 3/150 2026-03-13 10:19 by peike
[¿¼ÑÐ] 333Çóµ÷¼Á +3 152697 2026-03-12 4/200 2026-03-13 07:08 by Iveryant
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û