ᮾᛴᘓタᢏ⾡◊✲ᡤሗ No.39
東急建設技術研究所報No.39

U.D.C 653.928

 㜵ⲡ⥳ᆅ

U.D.C 653.928

防草緑地
 㸫ࢡࣛࣆ࢔⥳ᆅࡢ⥔ᣢ⟶⌮ཬࡧ㞧ⲡపῶຠᯝ㸫−クラピア緑地の維持管理及び雑草低減効果−福田 ⚟⏣淳 ＊῟㸨せ ⣙㸸  ➹⪅ࡽࡣ㝖ⲡᡭ㛫ཬࡧ㈝⏝ࡢᑡ࡞࠸⥳ᆅࢆᙧᡂࡍࡿࢡࣛࣆ࢔ⱑ྿௜ࡅ⥳໬ᕤἲࡢ㛤Ⓨ࡟ྲྀࡾ⤌ࢇ࡛࠾ࡾ㸪᪤ሗ 1)࡛྿௜ࡅ࡚࠿
ࡽฟⱆࡍࡿࡲ࡛࡟ᚲせ࡞₤Ỉ㸪ࢡࣛࣆ࢔ࡢฟⱆண➼࡟ࡘ࠸࡚ሗ࿌ࡋࡓࠋᮏ✏࡛ࡣ㸪ࢡࣛࣆ࢔⥳ᆅࢆ⥔ᣢࡍࡿ⟶⌮ᡭἲཬࡧ㞧ⲡపῶຠᯝ࡟ࡘ࠸࡚ሗ࿌ࡍࡿࠋࢡࣛࣆ࢔ࡣᆅ⾲㠃ࢆᐦ࡟⿕そࡍࡿࡇ࡜࡛㣕᮶ࡍࡿ㞧ⲡ✀Ꮚࡀ᰿௜ࡁ㞴ࡃࡍࡿࡀ㸪ከᑡࡢ㞧ⲡࡣ⏕⫱ࡍࡿࠋࡑࢀࡽࡢ㞧ⲡࢆᨺ⨨ࡍࡿ࡜ⲡ㧗ࡢప࠸ࢡࣛࣆ࢔ࡢୖࢆ⿕そࡋ࡚㸪ࢡࣛࣆ࢔࡟᪥ᑕࡀᙜࡓࡾ࡟ࡃࡃ࡞ࡾ㸪ࢡࣛࣆ࢔ࡢ⏕⫱ࢆ㜼ᐖࡍࡿࠋࡑࡢࡓࡵ㸪ࢡࣛࣆ࢔ࢆ㜼ᐖࡍࡿ௦⾲ⓗ࡞㞧ⲡ࡛࠶ࡿࢡࢬ➼ࡢᑐ⟇࡜ࡋ࡚㸪ຠᯝࡢ࠶ࡗࡓ⸆๣ཬࡧࢡࣛࣆ࢔࡬ࡢᙳ㡪ࢆグ㍕ࡋࡓࠋࡲࡓ㸪ࢡࣛࣆ࢔⥳ᆅࡢ㞧ⲡ㔞ࡣ 1 ᖺ┠ࡼࡾ 2 ᖺ┠ࡢ࡯࠺ࡀᑡ࡞ࡃ࡞ࡗ࡚࠾ࡾ㸪ࡑࡢ㞧ⲡ㔞పῶຠᯝ࡟ࡘ࠸࡚グ㍕ࡋࡓࠋ㺕㺎㺺㺎㺢㺼㸸 㜵ⲡ⥳ᆅ㸪㝖ⲡ๣㸪ࢡࣛࣆ࢔㸪㞧ⲡపῶ┠ ḟ㸸  ࡣࡌࡵ࡟                        ⤖ᯝ     ᐇ㦂ᴫせ                        ࡲ࡜ࡵ                                    ࡣࡌࡵ࡟ⲡ✀Ꮚࡣά╔ࡋ㸪⏕⫱ࡍࡿࠋࡑࡢ㞧ⲡࢆᨺ⨨ࡍࡿ࡜㸪ඛ㏙࡜ྠᵝࡢ⌮⏤࡟ࡼࡾࢡࣛࣆ࢔ࡢᡂ㛗ࢆ㜼ᐖࡋ㸪ࢡሐయ➼ࡢᗈ኱࡞⥳ᆅ࡛ࡣẖᖺ㸪⭾኱࡞㝖ⲡ㈝⏝ࡀ㈝ࣛࣆ࢔࡟ࡼࡿ㞧ⲡపῶຠᯝࡀ↓ࡃ࡞ࡿྍ⬟ᛶࡀ࠶ࡿࠋࡸࡉࢀ࡚࠾ࡾ㸪ࡑࡢ๐ῶࡀㄢ㢟࡜࡞ࡗ࡚࠸ࡿࠋ➹⪅ࡽࡣ㞧ⲡࡢᑡ࡞࠸⥳ᆅࢆᙧᡂࡍࡿࢡࣛࣆ࢔ⱑ྿ࡑࡢࡓࡵ㸪ࢡࣛࣆ࢔⥳ᆅࡢ୍㒊࡟⏕⫱ࡍࡿከᖺ⏕㞧1)ࠋ

ⲡ➼ࢆ㝖ཤࡍࡿᚲせࡀ࠶ࡿࠋከᖺⲡࡣᆅୖ㒊㏆ࡃࡢⱼࡇࡢᕤἲࡣ㞧ⲡᢚไຠᯝࡢ࠶ࡿከᖺ⏕ࡢᆅ⿕᳜≀ࢡࣛࡢ୍㒊ཬࡧ᰿ࡀṧࡗ࡚࠸ࡿ࡜෌⏕ࡍࡿࡓࡵ㸪᰿ࡈ࡜ᯤࣆ࢔ࢆᙜ♫⊂⮬ࡢ྿௜ᢏ⾡㸦≉チྲྀᚓ῭ࡳ㸧࡛᳜᱂ࡍࡽࡍ࠿㸪ᢤ᰿ࡍࡿᚲせࡀ࠶ࡿࠋᢤ᰿ࡣ୺࡟ᡭసᴗ࡛⾜ࡿᕤἲ࡛࠶ࡿࠋࢡࣛࣆ࢔ࡀᆅ⾲㠃ࢆ⿕そࡍࡿࡇ࡜࡟ࡼ࠺ࡓࡵࢥࢫࢺࡀ࠿࠿ࡿࡢ࡟ᑐࡋ㸪㝖ⲡ๣ࡣᩓᕸసᴗࡀࡗ࡚㣕᮶㞧ⲡ✀Ꮚࡀά╔ࡋ࡙ࡽࡃ࡞ࡿࡓࡵ㸪㞧ⲡ⏕⫱୺యࡢࡓࡵ㸪పࢥࢫࢺ࡛⾜࠼ࡿ฼Ⅼࡀ࠶ࡿࠋ௜ࡅ⥳໬ᕤἲ(௨ୗ㸪ᮏᕤἲ࡜グࡍ)ࢆ㛤Ⓨࡋ࡚࠸ࡿ㔞ࢆపῶ࡛ࡁࡿࠋ෗┿ 1 ࡟ࢡࣛࣆ࢔ࢆ㸪ᅗ 1 ࡟ࢡࣛࣆᮏ✏࡛ࡣపࢥࢫࢺࡢ㝖ⲡ๣ᩓᕸ࡟ࡼࡿ㞧ⲡ㝖ཤຠᯝཬࡧ㝖ⲡ๣ࡀࢡࣛࣆ࢔࡟ཬࡰࡍᙳ㡪࡟ຍ࠼㸪ᮏᕤἲ᪋࢔ࡢ㞧ⲡᢚไ࢖࣓࣮ࢪࢆ♧ࡍࠋ

ᕤᚋࡢ 1 ᖺ┠࡜ 2 ᖺ┠ࡢࢡࣛࣆ࢔⥳ᆅࡢ㞧ⲡపῶຠᯝ୍᪉㸪ࢡࣛࣆ࢔ࡢ᳜᱂๓࠿ࡽ᰿ࢆᙇࡾ㸪ࢡࣛࣆ࢔⥳ᆅࡢ୰࡛⏕⫱ࡍࡿከᖺ⏕ࡢࢡࢬ➼ࢆࢡࣛࣆ࢔࡛ᢚไࡍ

ࢆẚ㍑ࡋࡓ⤖ᯝ࡟ࡘ࠸࡚ሗ࿌ࡍࡿࠋࡿࡇ࡜ࡣᅔ㞴࡛࠶ࡿࠋࡋ࠿ࡋ㸪ࡇࢀࡽ᪤࡟ά╔ࡋ࡚࠸ࡿከᖺ⏕㞧ⲡࢆᨺ⨨ࡋ࡚࠾ࡃ࡜㸪ࡑࢀࡽࡀ⏕⫱ࡋ㸪୍⯡ⓗ࡞㞧ⲡࡼࡾⲡ㧗ࡢప࠸ࢡࣛࣆ࢔࡟᪥ᑕࡀᙜࡓࡽ࡞ࡃ࡞ࡾ㸪ࢡࣛࣆ࢔ࡢ⏕⫱ࡀ㜼ᐖࡉࢀ㸪ࢡࣛࣆ࢔࡟ࡼࡿ㞧ⲡᢚไຠᯝࡀᮇᚅ

࡛ࡁ࡞ࡃ࡞ࡿࠋࡑࡢ࢖࣓࣮ࢪࢆᅗ 2 ࡟♧ࡍࠋࡲࡓ㸪ࢡࣛࣆ࢔ࡀᆅ⾲㠃ࢆ⿕そࡋ࡚ࡶ඲࡚ࡢ㣕᮶㞧ⲡ✀Ꮚࡢά╔ࢆᢚไ࡛ࡁࡿ࡜ࡣ㝈ࡽࡎ㸪ከᑡࡢ㣕᮶㞧㢼㞧ⲡ✀Ꮚᆅ⾲㠃䜢⿕そ䛧䛯䜽䝷䝢䜰෗┿  ࢡࣛࣆ࢔(㛤ⰼᮇ)㞧ⲡᙳ⏕⫱䛾ᝏ䛔䜽䝷䝢䜰᰿௜䛔䛯㞧ⲡ✀Ꮚᅗ  ࢡࣛࣆ࢔ࡢ㞧ⲡᢚไᶵ⬟* 土木本部 環境技術部

ᅵᮌᮏ㒊 ⎔ቃᢏ⾡㒊
9393

ᅗ  ࢡࣛࣆ࢔⏕⫱ࡀᅔ㞴࡞≧ἣ

東急建設技術研究所報No.39

 ᐇ㦂ᴫせ 㣕᮶㞧ⲡ✀Ꮚᑐ⟇ ᐇ㦂ᆅ୕㔜┴㕥㮵ᕷ㸦ᐇ㦂ᆅࢆᅗ 3 ࡟♧ࡍࠋ㸧༊⏬ͤ1 ࢡࣛࣆ࢔༊㸸5m10m2 ༊ͤ2㞧ⲡ༊ͤ3 㸸5m10m
ͤ1 ྛ༊⏬ࡢ࠺ࡕ㸪ᑠẁࡣྵࡲࡎͤ2 ᮏᕤἲ᪋ᕤ᫬࡟᮲௳ࢆኚ࠼࡚ᐇ㦂ࡋࡓⅭ㸪2 ༊タࡅࡓࡀ㸪᪋ᕤᚋࡢ᳨ウ࡜࡞ࡿᮏ✏ࡢᐇ㦂࡛ࡣྠ᮲௳࡛࠶ࡿ
ͤ3 H23 ᖺᗘࡢࡳタ⨨㸪H24 ᖺᗘࡣ᧔ཤ໙㓄   ἲ㠃᪉఩ ༡すྥࡁ ✀Ꮚࡀ㣕᮶ࡋ࡚⏕⫱ࡍࡿ㞧ⲡ࡜ࡋ࡚㸪࢝ࣛࢫࣀ࢚ࣥ
ࢻ࢘ཬࡧࢤࣥࢤࢆ㑅ᐃࡋࡓࠋ࢝ࣛࢫࣀ࢚ࣥࢻ࢘ཬࡧࢤࣥࢤࡢ⏕⫱ᮇ➼ࢆ⾲ 1 ࡟♧ࡍࠋ㝖ⲡ๣ࡢ᪋⏝ࡣ H24 ᖺ
4 ᭶ 6 ᪥࡟⾜ࡗࡓࠋ௨ୗ࡟᪋⏝ࡋࡓ㝖ⲡ๣ཬࡧ⸆㔞➼ࢆ♧ࡍࠋ㝖ⲡ๣  MCPP(୸࿴ࣂ࢖࢜ࢣ࣑࢝ࣝ(ᰴ))
 ⸆㔞   0.5ε/10aᕼ㔘Ỉ㔞 200ε/10a ᪋⏝᪉ἲ ࢪࣙࣟ࡟ࡼࡿᩓᕸ

 ᐇ㦂ᮇ㛫 㞧ⲡᢚไຠᯝ

 + ᖺ  ᭶  ᪥㹼+ ᖺ  ᭶  ᪥ᮏᕤἲ᪋ᕤᚋࡢ 1 ᖺ┠㸪2 ᖺ┠ࡢࢡࣛࣆ࢔࡟ࡼࡿ㞧ⲡ+ ᖺ  ᭶  ᪥㸸ࢡࣛࣆ࢔ⱑ྿௜ࡅ᪋ᕤ ᢚไຠᯝࢆẚ㍑ࡍࡿࡓࡵ㸪H23 ᖺᗘࡢࢡࣛࣆ࢔༊㸪㞧 ከᖺ⏕㞧ⲡᑐ⟇ⲡ༊㸪H24 ᖺᗘࡢࢡࣛࣆ࢔༊ࡢ༢఩㠃✚ᙜࡓࡾࡢ㞧ⲡ ㄪᰝᑐ㇟ࡢከᖺ⏕㞧ⲡ࡜ࡋ࡚ࢡࢬࢆ㑅ᐃࡋࡓࠋࢡࢬ㔞ࢆࡢ⏕⫱ᮇ➼ࢆ⾲ 1 ࡟♧ࡍࠋ

H23 ᖺ 7 ᭶ 29 ᪥㹼9 ᭶ 27 ᪥ࡢ⣙ 2 ࠿᭶㛫㸪H24 ᖺᗘࡣ

H23 ᖺ 9 ᭶ 27 ᪥࡟ከᖺ⏕㞧ⲡࡢࢡࢬ࡟᭷ຠ࡜ࡉࢀࡿᐃࡋࡓࠋᐃࡍࡿ㞧ⲡ⏕⫱ᮇ㛫ࡣ㸪H23 ᖺᗘࡣ

H24 ᖺ 7 ᭶ 6 ᪥㹼9 ᭶ 26 ᪥ࡢ⣙ 3 ࠿᭶㛫࡜ࡋࡓࠋ㝖ⲡ๣ࢆ᪋⏝ࡋࡓࠋࢡࢬࡢ⏕⫱ㄪᰝࡣ┠ど࡛ࢡࢬ⏕⫱ࡢ᭷↓ࢆ☜ㄆࡋࡓࠋࡲࡓ㸪H23 ᖺ࡟㝖ⲡ๣ࢆ᪋⏝ࡋࡓ⤖ᯝ⟠ᡤ࿘㎶ࡢࢡࣛࣆ࢔ࡀᯤࢀ࡚࠾ࡾ㸪ࡑࡢ⟠ᡤࢆࢡࣛࣆ Ẽ㇟࢔ࡀ⿕そ࡛ࡁࡿ࠿ࢆ H24 ᖺᗘ࡟☜ㄆࡋࡓࠋ ᅗ 4 ࡟ H23㸪24 ᖺᗘࡢᖹᆒẼ ௨ୗ࡟᪋⏝ࡋࡓ㝖ⲡ๣ཬࡧ⸆㔞ࢆ♧ࡍࠋ㝖ⲡ๣   ࢩ࣮ࣙࢺ࣮࢟ࣉ ᰴ ࢔ࢭࣥࢺ ⸆㔞    εDᕼ㔘Ỉ㔞 εD᪋⏝᪉ἲ ⴥ㠃࡟ሬᕸ䜽䝷䝢䜰㻮༊䜽䝷䝢䜰㻭༊ 㞧ⲡ༊ࢡࣛࣆ࢔⏕⫱ࡢ┠Ᏻ࡛࠶ࡿᖹᆒẼཬࡧ㝆Ỉ㔞ࢆ♧ࡍࠋ15Υ௨ୖࡢ᪥ࡀH23 ᖺᗘࡣᮏᕤἲࢆ᪋ᕤࡋࡓ 5 ᭶࠿ࡽ 11 ᭶ୖ᪪ࡲ࡛㸪
H24 ᖺᗘࡣ 4 ᭶ୗ᪪࠿ࡽ 10 ᭶ᮎࡲ࡛࡜⣙ 6 ࠿᭶㛫࠶ࡗࡓࡇ࡜࠿ࡽ㸪Ẽࡣࢡࣛࣆ࢔⏕⫱࡟ၥ㢟ࡀ࡞࠿ࡗࡓࠋ

㝆㞵ࡣ㸪ࢡࣛࣆ࢔ࡀ᭱ࡶỈࢆᚲせ࡜ࡍࡿ 7~8 ᭶࡟࠾࠸࡚㸪↓㝆㞵ᮇ㛫ࡣ᭱㛗࡛ H23 ᖺᗘࡣ 8/6㹼8/15㸪H24㻡㻜㻜㻡㻜㻜㻜ᖺᗘࡣ 8/22~8/31 ࡢ 10 ᪥㛫࡛࠶ࡗࡓࠋࢡࣛࣆ࢔ࢆ྿௜
ࡅ࡚࠿ࡽ H23 ᖺᗘࡣ 1 ࠿᭶༙㸪H24 ᖺᗘࡣ 1 ᖺ௨ୖ⤒ᑠẁ㐣ࡋ࡚࠸ࡿࡓࡵ㸪ࢡࣛࣆ࢔ࡢ᰿ࡣᆅ୰࡟ከࡃఙ㛗ࡋ࡚ᅵ୰Ỉศࢆ྾཰࡛ࡁࡿࡼ࠺࡟࡞ࡗ࡚࠾ࡾ㸪10 ᪥㛫ࡢ↓㝆㞵ࡣࢡࣛࣆ࢔⏕⫱࡟ᨭ㞀ࡣ࡞࠸ࠋ

㻡㻜㻜㻜

ᑠẁ

㻝㻜㻡㻜㻜

ᑠẁ

ᑠẁࡣᐇ㦂༊እ㻡㻜㻜㻜⾲  㣕᮶㞧ⲡ✀Ꮚᑐ⟇ᐇ㦂᮲௳⏕⫱ᮇ ⰼᮇ䞉⤖ᐇᮇ䜽䝈ከᖺ⏕ 㻠䡚㻝㻝᭶㻣䡚㻥᭶䜹䝷䝇䝜䜶䞁䝗䜴 ㉺ᖺⲡ 㻝㻝䡚㻥᭶㻠䡚㻢᭶䝀䞁䝀㉺ᖺⲡ 㻝㻜䡚㻡᭶
㻠䡚㻡᭶

㻔㼙㼙㻕

ᅗ  ᐇ㦂ᆅ
35350
㝆Ỉ㔞(mm)300

2510᪥௨ୖ䛾↓㝆㞵ᮇ㛫250

ᅗ  H23㸪24 ᖺᗘࡢᖹᆒẼ

94

࡜㝆Ỉ

H25/2
H25/3

H25/1

H24/12

H24/11

H24/10

H24/9

H24/8

H24/7

H24/6

H24/5

H24/4

0

H24/2
H24/3

0

H24/1

50

H23/12

5

H23/11

100

H23/9

10

H23/10

150

H23/8

15

H23/7

200

H23/620㝆Ỉ㔞(mm)

(Υ)

30

H23/5

ᖹᆒẼ 䠄Υ䠅ᖹᆒẼ

東急建設技術研究所報No.39

 㣕᮶㞧ⲡ✀Ꮚᑐ⟇ ከᖺ⏕㞧ⲡᑐ⟇ ෗┿ 2~5 ࡟ࢩ࣮ࣙࢺ࣮࢟ࣉࢆ᪋⏝ࡋࡓᚋࡢࢡࢬ࠾ࡼ

࢝ࣛࢫࣀ࢚ࣥࢻ࢘ཬࡧࢤࣥࢤࡣ㝖ⲡ๣ MCPP ࡢᩓᕸࡧࢡࣛࣆ࢔ࡢ≧ἣࢆ♧ࡍࠋࢩ࣮ࣙࢺ࣮࢟ࣉ᪋ᕤᚋࡢ

࡟ࡼࡗ࡚⩣᭶ࡢ H24 ᖺ 5 ᭶࡟ࡣᯤࢀ㸪⩣ᖺࡢ H25 ᖺ 3

H23 ᖺᗘ୪ࡧ࡟ H24 ᖺᗘ୰࡟㸪ࢡࢬࡣᐇ㦂ᆅ࡛⏕⫱ࡋ᭶࡟⏕⫱ࡣṤ࡝☜ㄆࡉࢀ࡞࠿ࡗࡓࠋࡼࡗ࡚㸪MCPP ࡣ࡞࠿ࡗࡓࠋ

࢝ࣛࢫࣀ࢚ࣥࢻ࢘➼࡬ࡢ⏕⫱ᢚไຠᯝࡀ࠶ࡿ࡜ゝ࠼ࡿࠋࡲࡓ㸪ࢩ࣮ࣙࢺ࣮࢟ࣉ᪋ᕤ࡟ࡼࡗ࡚ H23 ᖺᗘ࡟ࡣ୍ణࡋ㸪MCPP ࢆᩓᕸࡋࡓ⟠ᡤࡢࢡࣛࣆ࢔ࡀᯤࢀ㸪ᯤ᫬ⓗ࡟࡜ࡣ࠸࠼ࢡࣛࣆ࢔ࡀᯤࢀࡓ⟠ᡤࡀ࠶ࡗࡓࡀ㸪H24ࢀࡓ⟠ᡤࡣ࿘ᅖࡢࢡࣛࣆ࢔ࡀఙ㛗ࡋ࡚⿕そࡋࡓࡢࡣ 7ᖺ 7 ᭶࡟ࡣᯤࢀࡓ⟠ᡤࡢ࿘ᅖࡢࢡࣛࣆ࢔ࡀఙ㛗ࡋ㸪⿕᭶࡛࠶ࡗࡓࠋࡑࡢࡓࡵ㸪MCPP ࡢ᪋⏝ࡣ㸪ࢡࣛࣆ࢔ࢆそࡋࡓࠋ୍᫬ⓗ࡟ᯤࡽࡍᙳ㡪ࡀ࠶ࡿࡇ࡜ࢆㄆ㆑ࡋࡓୖ࡛౑⏝ࡍࡇࢀࡼࡾ㸪ࢡࣛࣆ࢔⥳ᆅ࡟⏕⫱ࡍࡿࢡࢬᑐ⟇࡜ࡋ࡚ࡿᚲせࡀ࠶ࡿࠋ෗┿ 6 ࡟ H24 ᖺ 4 ᭶ࡢࢡࣛࣆ࢔ཬࡧ࢝

ࢩ࣮ࣙࢺ࣮࢟ࣉࡣ᭷ຠ࡛࠶ࡿࠋణࡋ㸪⩣ᖺ࡟ࡣࢡࣛࣆࣛࢫࣀ࢚ࣥࢻ࢘➼ࡢ≧ἣࢆ♧ࡍࠋ෗┿ 6 ࡢⲔⰍ㒊ศࡣ࢔ࡢ⿕そ≧ែࡀ᚟άࡍࡿ࡜ࡣ࠸࠼㸪୍᫬ⓗ࡟ࢡࣛࣆ࢔ఇ╀ࡋ࡚࠸ࡿࢡࣛࣆ࢔࡛࠶ࡿࠋ෗┿ 7 ࡟ࢡࣛࣆ࢔ࡀ

ࢆᯤࡽࡍࡓࡵ㸪ࢩ࣮ࣙࢺ࣮࢟ࣉࡢ౑⏝࡟ࡣࢡࣛࣆ࢔࡟

MCPP ࡢᩓᕸ࡟ࡼࡗ࡚ᯤࢀࡓ≧ἣࢆ♧ࡍࠋ෗┿ 8 ࡟ᯤ୚࠼ࡿᙳ㡪ࢆㄆ㆑ࡋࡓୖ࡛౑⏝ࡍࡿᚲせࡀ࠶ࡿࠋࢀࡓࢡࣛࣆ࢔⟠ᡤࡀ࿘ᅖࡢࢡࣛࣆ࢔ࡢఙ㛗࡟ࡼࡗ࡚⿕そࡉࢀࡓ≧ἣࢆ♧ࡍࠋࢡࢬ
ࢡࢬ෗┿  ࢡࢬ⏕ᜥ⟠ᡤ(H23 ᖺ 10 ᭶)෗┿  ᯤࢀࡓࢡࢬཬࡧࢡࣛࣆ࢔(H23 ᖺ 10 ᭶)

ඖࢡࢬ
⏕ᜥ⟠ᡤ

෗┿  ඖࢡࢬ⏕⫱⟠ᡤ(H24 ᖺ 7 ᭶)࢝ࣛࢫࣀ࢚ࣥࢻ࢘෗┿  ࢡࣛࣆ࢔⥳ᆅ࡟⏕⫱ࡍࡿ࢝ࣛࢫࣀ࢚ࣥࢻ࢘➼ (H24 ᖺ 4 ᭶)෗┿  ᯤࢀࡓࢡࣛࣆ࢔⟠ᡤࡢ⿕そ≧ἣ(H24 ᖺ 7 ᭶)ᯤࢀࡓࢡࣛࣆ࢔෗┿  ࢡࣛࣆ࢔ᯤࢀ≧ἣ
(H24 ᖺ 6 ᭶)ͤⲔⰍࡢ⟠ᡤࡣఇ╀୰ࡢࢡࣛࣆ࢔

95෗┿  ࢡࣛࣆ࢔⿕そ≧ἣ(H24 ᖺ 7 ᭶)

東急建設技術研究所報No.39

 㞧ⲡ㔞ࡢኚ໬࠶ࡿࡢ࡟ᑐࡋ㸪H24 ᖺᗘࡀ⣙ 3 ࠿᭶࡜㸪H24 ᖺᗘࡢ᪉ ᅗ 5 ࡟ࢡࣛࣆ࢔᳜⿕⋡ࢆ♧ࡍࠋA㸪B ༊࡜ࡶ࡟྿௜⣙ࡀ㛗࠸࡟ࡶ㛵ࢃࡽࡎ㞧ⲡ㔜㔞ࡀᑡ࡞࠸ࡇ࡜࠿ࡽ㸪2 ᖺ┠

2 ࠿᭶ᚋ࡟ࢡࣛࣆ࢔᳜⿕⋡ࡣ 100%࡟㐩ࡋࡓࠋH24 ᖺ 5ࡢ H24 ᖺᗘࡢ᪉ࡀ㞧ⲡࢆᢚไຠᯝࡀྥୖࡋ࡚࠸ࡿྍ⬟᭶࡟ࢡࣛࣆ࢔᳜⿕⋡ࡀపୗࡋࡓཎᅉࡣ㸪H24 ᖺ 4 ᭶࡟ᛶࡀ㧗࠸ࠋࡇࢀࡣ 2 ᖺ┠ࡢ᪉ࡀࢡࣛࣆ࢔ⱼⴥࡢᐦᗘࡀ

ᩓᕸࡋࡓ㝖ⲡ๣(MCPP) ࡢᙳ㡪࡟ࡼࡿࡶࡢ࡛࠶ࡿࡀ㸪ୖࡀࡾ㸪㞧ⲡపῶຠᯝࡀ㧗ࡲࡗࡓࡓࡵ࡜⪃࠼ࡽ࠼ࡿࠋ

6 ᭶࡟ࡣ 70%๓ᚋ࡟ࡲ࡛ࢡࣛࣆ࢔᳜⿕⋡ࡣୖ᪼ࡋ࡚࠾ࡲ࡜ࡵࡾ㸪ࡑࢀ௨㝆ࡶ 80%௨ୖࢆಖࡗ࡚࠸ࡓࠋ
㞧ⲡ㔞ࡢẚ㍑ࡣࢡࣛࣆ࢔⿕そ⋡ࡀ 80%௨ୖ࠿ࡘ㞧ⲡ ᮏᐇ㦂࡛ᚓࡽࢀࡓ▱ぢࢆୗ࡟㏙࡭ࡿࠋࡢ⏕⫱ࡀ᪲┒࡞ኟᮇ࡜ࡋ㸪H23 ᖺࡣ 7 ᭶ 29 ᪥࠿ࡽ 9 ᭶

ձ ࢡࢬཬࡧ࢝ࣛࢫࣀ࢚ࣥࢻ࢘ࢆᯤࡽࡍ࡟ࡣࢩ࣮ࣙࢺ27 ᪥ࡢ⣙ 2 ࠿᭶㛫㸪H24 ᖺࡣ 7 ᭶ 6 ᪥࠿ࡽ 9 ᭶ 26 ᪥ࡢ࣮࢟ࣉ➼ࡀ᭷ຠ࡛࠶ࡿࡀ㸪ࡑࢀࡽࡢ᪋⏝ࡣࢡࣛࣆ࢔⿕⣙ 3 ࠿᭶㛫࡜ࡋࡓࠋྛ༊ࡢ㞧ⲡ㔞ࢆᅗ 6 ࡟♧ࡍࠋH23そ⋡ࢆ୍᫬ⓗ࡟పୗࡉࡏࡿࡇ࡜ࢆㄆ㆑ࡋࡓୖ࡛㸪౑⏝ᖺᗘࡢࢡࣛࣆ࢔༊ࡢ㞧ⲡ㔞ࡣ㞧ⲡ༊ࡢ༙ศ࡛࠶ࡗࡓࠋࡍࡿᚲせࡀ࠶ࡿࠋH24 ᖺᗘࡣ㞧ⲡ༊ࡀ᧔ཤࡉࢀࡓࡓࡵ㸪㞧ⲡ༊࡜ẚ㍑࡛

ղ ࢡࣛࣆ࢔༊ࡢ㞧ⲡ㔞ࡣ㸪㞧ⲡ༊ࡢ㞧ⲡ㔞ࡼࡾᑡ࡞ࡃ㸪ࢡࣛࣆ࢔ࡢ㞧ⲡపῶຠᯝࡀ☜ㄆ࡛ࡁࡓࠋࡁ࡞࠿ࡗࡓࠋճ ࢡࣛࣆ࢔༊ࡢ㞧ⲡ㔞ࡣ 1 ᖺ┠ࡼࡾ 2 ᖺ┠ࡢ࡯࠺ࡀㄪᰝ㝖ⲡࡢ᫬ᮇཬࡧᮇ㛫ࡀ␗࡞ࡿࡓࡵ㸪ṇ☜࡞ẚ㍑࡜

ᑡ࡞࠸ࠋࡇࢀࡣ 2 ᖺ┠ࡢ࡯࠺ࡀࢡࣛࣆ࢔ⱼⴥࡢᐦᗘࡀࡣ࡞ࡽ࡞࠸ࡀ㸪H23 ᖺᗘࡢㄪᰝ㝖ⲡᮇ㛫ࡀ⣙ 2 ࠿᭶࡛㧗ࡲࡿࡓࡵ࡜⪃࠼ࡽࢀࡿࠋ
1.4
1.15
1.2A༊䜽䝷䝢䜰᳜⿕⋡B༊䜽䝷䝢䜰᳜⿕⋡㝖ⲡ๣(䡸䡪䡬䢀䡳䡬䢈䢛䠅ሬᕸ㝖ⲡ๣䠄MCPP䠅ᩓᕸ䜽䝷䝢䜰ⱑ྿௜

H23ᖺᗘสⲡ㔜㔞ㄪᰝᮇ㛫

1
0.8
0.6
0.4

0.58

0.5
0.26

0.32

0.2

H25/3

H25/1

H24/11

H24/9

H24/7

H24/5

H24/3

H24/1

H23/11

H23/9

H23/7

㞧ⲡ㔜㔞䠄kg/䟝䠅

100
90
80
70
60
50
40
30
20
100H23/5

䜽䝷䝢䜰᳜⿕⋡(%)

H23 ᖺᗘ࡜ H24 ᖺᗘࡢࢡࣛࣆ࢔༊ࡢ㞧ⲡ㔞ẚ㍑ࡣ㸪0H24ᖺᗘสⲡ㔜㔞ㄪᰝᮇ㛫ᅗ  ࢡࣛࣆ࢔᳜⿕⋡ᅗ  ྛ༊㞧ⲡ㔜㔞ㅰ ㎡ᮏ◊✲ࡣ⊂❧⾜ᨻἲேỈ㈨※ᶵᵓ୕㔜⏝Ỉ⟶⌮ᡤࡀබເࡋࡓࠕ኱つᶍᩳ㠃➼࡬ࡢᆅ⿕᳜≀᳜᱂ᐇドヨ㦂ࠖࡢ୰࡛⾜࡞ࡗࡓᐇ㦂࡛࠶ࡿࠋࡇࡇ࡟㛵ಀྛ఩࡟῝ࡃឤㅰࡢពࢆ⾲ࡋࡲࡍࠋཧ⪃ᩥ⊩1㸧 ⚟⏣῟࣭㔠ෆᩔ㸸ࢡࣛࣆ࢔ⱑ྿௜ࡅ⥳໬ᕤἲ㸪ᮾᛴᘓタᰴᘧ఍♫ ᢏ⾡◊✲ᡤሗ㸪No.38 ᕳ㸪pp.53_56㸪20122㸧 ゅ⏣බṇ࣭ᯇᓮ᫛ኵ࣭ᯇᮏ㔜⏨㸸᱂ᇵ⎔ቃධ㛛㸪pp.135 ࣮࣌ࢪ㸪ᐇᴗฟ∧㸪2008 ᖺ3㸧 ἟⏣┿࣭ྜྷἑ㛗ே㸸᪂∧ ᪥ᮏཎⰍ㞧ⲡᅗ㚷

LOW MAINTENANCE GREEN TRACT OF FIELD-VEGETATION MANEGEMENT AND EFFECT ON WEEDS RESTRAIN OF KURAPIAA.Fukuda
In this report, vegetation management of kurapia field and effect restrain weeds. As vegetation management, agriculturalchemicals are examined to blight weeds in kurapia field, describe effect and caution point in use. As effect restrain weeds, inkurapia field, weeds weight of first year is smaller than weeds weight of second year. T his case is to prevent the growth ofweeds by its stem and leaf become densely.

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